update workflows

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
Bump golangci/golangci-lint-action from 2 to 3 (#32 )
2022-03-05 19:09:49 +03:00 · 2022-02-25 13:09:59 +03:00 · 2022-02-25 09:57:33 +03:00 · 2022-02-25 09:44:07 +03:00 · 2022-01-31 12:21:37 +03:00 · 2022-01-31 09:20:52 +00:00
24 changed files with 2511 additions and 169 deletions
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -0,0 +1,24 @@
+---
+name: Bug report
+about: For reporting bugs in go-micro
+title: "[BUG]"
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+
+1. What are you trying to do?
+2. What did you expect to happen?
+3. What happens instead?
+
+**How to reproduce the bug:**
+
+If possible, please include a minimal code snippet here.
+
+**Environment:**
+Go Version: please paste `go version` output here
+```
+please paste `go env` output here
+```
--- a/.github/ISSUE_TEMPLATE/feature-request---enhancement.md
+++ b/.github/ISSUE_TEMPLATE/feature-request---enhancement.md
@@ -0,0 +1,17 @@
+---
+name: Feature request / Enhancement
+about: If you have a need not served by go-micro
+title: "[FEATURE]"
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
--- a/.github/ISSUE_TEMPLATE/question.md
+++ b/.github/ISSUE_TEMPLATE/question.md
@@ -0,0 +1,14 @@
+---
+name: Question
+about: Ask a question about go-micro
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+Before asking, please check if your question has already been answered: 
+
+1. Check the documentation - https://micro.mu/docs/
+2. Check the examples and plugins - https://github.com/micro/examples & https://github.com/micro/go-plugins
+3. Search existing issues
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,9 @@
+## Pull Request template
+Please, go through these steps before clicking submit on this PR.
+
+1. Give a descriptive title to your PR.
+2. Provide a description of your changes.
+3. Make sure you have some relevant tests.
+4. Put `closes #XXXX` in your comment to auto-close the issue that your PR fixes (if applicable).
+
+**PLEASE REMOVE THIS TEMPLATE BEFORE SUBMITTING**
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -0,0 +1,19 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+
+  # Maintain dependencies for Golang
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "daily"
--- a/.github/workflows/autoapprove.yml
+++ b/.github/workflows/autoapprove.yml
@@ -0,0 +1,20 @@
+name: "autoapprove"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  autoapprove:
+    runs-on: ubuntu-latest
+    steps:
+      - name: approve
+        uses: hmarr/auto-approve-action@v2
+        if: github.actor == 'vtolstov' || github.actor == 'dependabot[bot]'
+        id: approve
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/automerge.yml
+++ b/.github/workflows/automerge.yml
@@ -0,0 +1,21 @@
+name: "automerge"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  automerge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'vtolstov'
+    steps:
+      - name: merge
+        id: merge
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.TOKEN}}
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -0,0 +1,47 @@
+name: build
+on:
+ push:
+    branches:
+    - master
+    - v3
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: setup
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.16
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: cache
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: ${{ runner.os }}-go-
+    - name: deps
+      run: go get -v -t -d ./...
+    - name: test
+      env:
+        INTEGRATION_TESTS: yes
+      run: go test -mod readonly -v ./...
+  lint:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v3
+      - name: lint
+        uses: golangci/golangci-lint-action@v3.1.0
+        continue-on-error: true
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.30
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+          # Optional: golangci-lint command line arguments.
+          # args: --issues-exit-code=0
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          # only-new-issues: true
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -0,0 +1,78 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "codeql"
+
+on:
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed
+  push:
+    branches: [ master, v3 ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ master, v3 ]
+  schedule:
+    - cron: '34 1 * * 0'
+
+jobs:
+  analyze:
+    name: analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+
+    steps:
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: setup
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.16
+    # Initializes the CodeQL tools for scanning.
+    - name: init
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: analyze
+      uses: github/codeql-action/analyze@v1
--- a/.github/workflows/dependabot-automerge.yml
+++ b/.github/workflows/dependabot-automerge.yml
@@ -0,0 +1,27 @@
+name: "dependabot-automerge"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  automerge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+    steps:
+      - name: metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v1.3.0
+        with:
+          github-token: "${{ secrets.TOKEN }}"
+      - name: merge
+        id: merge
+        if: ${{contains(steps.metadata.outputs.dependency-names, 'go.unistack.org')}}
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.TOKEN}}
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -0,0 +1,47 @@
+name: prbuild
+on:
+  pull_request:
+    branches:
+    - master
+    - v3
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: setup
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.16
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: cache
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: ${{ runner.os }}-go-
+    - name: deps
+      run: go get -v -t -d ./...
+    - name: test
+      env:
+        INTEGRATION_TESTS: yes
+      run: go test -mod readonly -v ./...
+  lint:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v3
+      - name: lint
+        uses: golangci/golangci-lint-action@v3.1.0
+        continue-on-error: true
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.30
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+          # Optional: golangci-lint command line arguments.
+          # args: --issues-exit-code=0
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          # only-new-issues: true
--- a/.synced
+++ b/.synced
@@ -0,0 +1 @@
+8975184b88a75a692780bbd4d6b18f0a28e99819
--- a/go.mod
+++ b/go.mod
@@ -0,0 +1,9 @@
+module go.unistack.org/micro-register-mdns/v3
+
+go 1.16
+
+require (
+	github.com/miekg/dns v1.1.46
+	go.unistack.org/micro/v3 v3.8.21
+	golang.org/x/net v0.0.0-20211020060615-d418f374d309
+)
--- a/go.sum
+++ b/go.sum
@@ -0,0 +1,170 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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+github.com/buger/jsonparser v1.1.1/go.mod h1:6RYKKt7H4d4+iWqouImQ9R2FZql3VbhNgx27UK13J/0=
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--- a/mdns.go
+++ b/mdns.go
@@ -1,4 +1,4 @@
-package mdns
+package mdns // import "go.unistack.org/micro-register-mdns/v3"

 import (
 	"bytes"
@@ -14,10 +14,10 @@ import (
 	"sync"
 	"time"

-	"github.com/google/uuid"
-	"github.com/micro/go-micro/v3/logger"
-	"github.com/micro/go-micro/v3/registry"
-	"github.com/micro/go-micro/v3/util/mdns"
+	util "go.unistack.org/micro-register-mdns/v3/util"
+	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v3/register"
+	"go.unistack.org/micro/v3/util/id"
 )

 const (
@@ -30,13 +30,13 @@ const (
 type mdnsTxt struct {
 	Service   string
 	Version   string
-	Endpoints []*registry.Endpoint
+	Endpoints []*register.Endpoint
 	Metadata  map[string]string
 }

 type mdnsEntry struct {
 	id   string
-	node *mdns.Server
+	node *util.Server
 }

 // services are a key/value map, with the service name as a key and the value being a
@@ -45,8 +45,8 @@ type mdnsEntry struct {
 type services map[string][]*mdnsEntry

 // mdsRegistry is a multicast dns registry
-type mdnsRegistry struct {
-	opts registry.Options
+type mdnsRegister struct {
+	opts register.Options

 	// the top level domains, these can be overriden using options
 	defaultDomain string
@@ -61,18 +61,18 @@ type mdnsRegistry struct {
 	watchers map[string]*mdnsWatcher

 	// listener
-	listener chan *mdns.ServiceEntry
+	listener chan *util.ServiceEntry
 }

 type mdnsWatcher struct {
 	id   string
-	wo   registry.WatchOptions
-	ch   chan *mdns.ServiceEntry
+	wo   register.WatchOptions
+	ch   chan *util.ServiceEntry
 	exit chan struct{}
 	// the mdns domain
 	domain string
 	// the registry
-	registry *mdnsRegistry
+	registry *mdnsRegister
 }

 func encode(txt *mdnsTxt) ([]string, error) {
@@ -87,8 +87,8 @@ func encode(txt *mdnsTxt) ([]string, error) {
 	w := zlib.NewWriter(&buf)
 	defer func() {
 		if closeErr := w.Close(); closeErr != nil {
-			if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-				logger.Errorf("[mdns] registry close encoding writer err: %v", closeErr)
+			if logger.V(logger.ErrorLevel) {
+				logger.Errorf(context.TODO(), "[mdns] registry close encoding writer err: %v", closeErr)
 			}
 		}
 	}()
@@ -148,8 +148,8 @@ func decode(record []string) (*mdnsTxt, error) {
 	return txt, nil
 }

-func newRegistry(opts ...registry.Option) registry.Registry {
-	options := registry.Options{
+func newRegister(opts ...register.Option) register.Register {
+	options := register.Options{
 		Context: context.Background(),
 		Timeout: time.Millisecond * 100,
 	}
@@ -159,12 +159,12 @@ func newRegistry(opts ...registry.Option) registry.Registry {
 	}

 	// set the domain
-	defaultDomain := registry.DefaultDomain
+	defaultDomain := register.DefaultDomain
 	if d, ok := options.Context.Value("mdns.domain").(string); ok {
 		defaultDomain = d
 	}

-	return &mdnsRegistry{
+	return &mdnsRegister{
 		defaultDomain: defaultDomain,
 		globalDomain:  globalDomain,
 		opts:          options,
@@ -173,28 +173,38 @@ func newRegistry(opts ...registry.Option) registry.Registry {
 	}
 }

-func (m *mdnsRegistry) Init(opts ...registry.Option) error {
+func (m *mdnsRegister) Init(opts ...register.Option) error {
 	for _, o := range opts {
 		o(&m.opts)
 	}
 	return nil
 }

-func (m *mdnsRegistry) Options() registry.Options {
+func (m *mdnsRegister) Options() register.Options {
 	return m.opts
 }

+func (m *mdnsRegister) Connect(ctx context.Context) error {
+	// TODO: real connect
+	return nil
+}
+
+func (m *mdnsRegister) Disconnect(ctx context.Context) error {
+	// TODO: real disconnect
+	return nil
+}
+
 // createServiceMDNSEntry will create a new wildcard mdns entry for the service in the
 // given domain. This wildcard mdns entry is used when listing services.
 func createServiceMDNSEntry(name, domain string) (*mdnsEntry, error) {
 	ip := net.ParseIP("0.0.0.0")

-	s, err := mdns.NewMDNSService(name, "_services", domain+".", "", 9999, []net.IP{ip}, nil)
+	s, err := util.NewMDNSService(name, "_services", domain+".", "", 9999, []net.IP{ip}, nil)
 	if err != nil {
 		return nil, err
 	}

-	srv, err := mdns.NewServer(&mdns.Config{Zone: &mdns.DNSSDService{MDNSService: s}, LocalhostChecking: true})
+	srv, err := util.NewServer(&util.Config{Zone: &util.DNSSDService{MDNSService: s} /*, LocalhostChecking: true*/})
 	if err != nil {
 		return nil, err
 	}
@@ -202,7 +212,7 @@ func createServiceMDNSEntry(name, domain string) (*mdnsEntry, error) {
 	return &mdnsEntry{id: "*", node: srv}, nil
 }

-func (m *mdnsRegistry) createMDNSEntries(domain, serviceName string) ([]*mdnsEntry, error) {
+func (m *mdnsRegister) createMDNSEntries(domain, serviceName string) ([]*mdnsEntry, error) {
 	// if it already exists don't reegister it again
 	entries, ok := m.domains[domain][serviceName]
 	if ok {
@@ -218,13 +228,13 @@ func (m *mdnsRegistry) createMDNSEntries(domain, serviceName string) ([]*mdnsEnt
 	return []*mdnsEntry{entry}, nil
 }

-func registerService(service *registry.Service, entries []*mdnsEntry, options registry.RegisterOptions) ([]*mdnsEntry, error) {
+func registerService(service *register.Service, entries []*mdnsEntry, options register.RegisterOptions) ([]*mdnsEntry, error) {
 	var lastError error
 	for _, node := range service.Nodes {
 		var seen bool

 		for _, entry := range entries {
-			if node.Id == entry.id {
+			if node.ID == entry.id {
 				seen = true
 				break
 			}
@@ -241,7 +251,6 @@ func registerService(service *registry.Service, entries []*mdnsEntry, options re
 			Endpoints: service.Endpoints,
 			Metadata:  node.Metadata,
 		})
-
 		if err != nil {
 			lastError = err
 			continue
@@ -254,12 +263,12 @@ func registerService(service *registry.Service, entries []*mdnsEntry, options re
 		}
 		port, _ := strconv.Atoi(pt)

-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-			logger.Debugf("[mdns] registry create new service with ip: %s for: %s", net.ParseIP(host).String(), host)
+		if logger.V(logger.DebugLevel) {
+			logger.Debugf(context.TODO(), "[mdns] registry create new service with ip: %s for: %s", net.ParseIP(host).String(), host)
 		}
 		// we got here, new node
-		s, err := mdns.NewMDNSService(
-			node.Id,
+		s, err := util.NewMDNSService(
+			node.ID,
 			service.Name,
 			options.Domain+".",
 			"",
@@ -272,19 +281,19 @@ func registerService(service *registry.Service, entries []*mdnsEntry, options re
 			continue
 		}

-		srv, err := mdns.NewServer(&mdns.Config{Zone: s, LocalhostChecking: true})
+		srv, err := util.NewServer(&util.Config{Zone: s /*, LocalhostChecking: true*/})
 		if err != nil {
 			lastError = err
 			continue
 		}

-		entries = append(entries, &mdnsEntry{id: node.Id, node: srv})
+		entries = append(entries, &mdnsEntry{id: node.ID, node: srv})
 	}

 	return entries, lastError
 }

-func createGlobalDomainService(service *registry.Service, options registry.RegisterOptions) *registry.Service {
+func createGlobalDomainService(service *register.Service, options register.RegisterOptions) *register.Service {
 	srv := *service
 	srv.Nodes = nil

@@ -304,11 +313,11 @@ func createGlobalDomainService(service *registry.Service, options registry.Regis
 	return &srv
 }

-func (m *mdnsRegistry) Register(service *registry.Service, opts ...registry.RegisterOption) error {
+func (m *mdnsRegister) Register(ctx context.Context, service *register.Service, opts ...register.RegisterOption) error {
 	m.Lock()

 	// parse the options
-	var options registry.RegisterOptions
+	var options register.RegisterOptions
 	for _, o := range opts {
 		o(&options)
 	}
@@ -336,7 +345,7 @@ func (m *mdnsRegistry) Register(service *registry.Service, opts ...registry.Regi
 	// register in the global Domain so it can be queried as one
 	if options.Domain != m.globalDomain {
 		srv := createGlobalDomainService(service, options)
-		if err := m.Register(srv, append(opts, registry.RegisterDomain(m.globalDomain))...); err != nil {
+		if err := m.Register(ctx, srv, append(opts, register.RegisterDomain(m.globalDomain))...); err != nil {
 			gerr = err
 		}
 	}
@@ -344,9 +353,9 @@ func (m *mdnsRegistry) Register(service *registry.Service, opts ...registry.Regi
 	return gerr
 }

-func (m *mdnsRegistry) Deregister(service *registry.Service, opts ...registry.DeregisterOption) error {
+func (m *mdnsRegister) Deregister(ctx context.Context, service *register.Service, opts ...register.DeregisterOption) error {
 	// parse the options
-	var options registry.DeregisterOptions
+	var options register.DeregisterOptions
 	for _, o := range opts {
 		o(&options)
 	}
@@ -358,7 +367,7 @@ func (m *mdnsRegistry) Deregister(service *registry.Service, opts ...registry.De
 	var err error
 	if options.Domain != m.globalDomain {
 		defer func() {
-			err = m.Deregister(service, append(opts, registry.DeregisterDomain(m.globalDomain))...)
+			err = m.Deregister(ctx, service, append(opts, register.DeregisterDomain(m.globalDomain))...)
 		}()
 	}

@@ -378,7 +387,7 @@ func (m *mdnsRegistry) Deregister(service *registry.Service, opts ...registry.De
 		var remove bool

 		for _, node := range service.Nodes {
-			if node.Id == entry.id {
+			if node.ID == entry.id {
 				entry.node.Shutdown()
 				remove = true
 				break
@@ -420,28 +429,28 @@ func (m *mdnsRegistry) Deregister(service *registry.Service, opts ...registry.De
 	return err
 }

-func (m *mdnsRegistry) GetService(service string, opts ...registry.GetOption) ([]*registry.Service, error) {
+func (m *mdnsRegister) LookupService(ctx context.Context, service string, opts ...register.LookupOption) ([]*register.Service, error) {
 	// parse the options
-	var options registry.GetOptions
+	var options register.LookupOptions
 	for _, o := range opts {
 		o(&options)
 	}
 	if len(options.Domain) == 0 {
 		options.Domain = m.defaultDomain
 	}
-	if options.Domain == registry.WildcardDomain {
+	if options.Domain == register.WildcardDomain {
 		options.Domain = m.globalDomain
 	}

-	serviceMap := make(map[string]*registry.Service)
-	entries := make(chan *mdns.ServiceEntry, 10)
+	serviceMap := make(map[string]*register.Service)
+	entries := make(chan *util.ServiceEntry, 10)
 	done := make(chan bool)

-	p := mdns.DefaultParams(service)
+	p := util.DefaultParams(service)
 	// set context with timeout
-	var cancel context.CancelFunc
-	p.Context, cancel = context.WithTimeout(context.Background(), m.opts.Timeout)
-	defer cancel()
+	// var cancel context.CancelFunc
+	// p.Context, cancel = context.WithTimeout(context.Background(), m.opts.Timeout)
+	// defer cancel()
 	// set entries channel
 	p.Entries = entries
 	// set the domain
@@ -470,7 +479,7 @@ func (m *mdnsRegistry) GetService(service string, opts ...registry.GetOption) ([

 				s, ok := serviceMap[txt.Version]
 				if !ok {
-					s = &registry.Service{
+					s = &register.Service{
 						Name:      txt.Service,
 						Version:   txt.Version,
 						Endpoints: txt.Endpoints,
@@ -484,27 +493,27 @@ func (m *mdnsRegistry) GetService(service string, opts ...registry.GetOption) ([
 				} else if len(e.AddrV6) > 0 {
 					addr = "[" + e.AddrV6.String() + "]"
 				} else {
-					if logger.V(logger.InfoLevel, logger.DefaultLogger) {
-						logger.Infof("[mdns]: invalid endpoint received: %v", e)
+					if logger.V(logger.InfoLevel) {
+						logger.Infof(context.TODO(), "[mdns]: invalid endpoint received: %v", e)
 					}
 					continue
 				}
-				s.Nodes = append(s.Nodes, &registry.Node{
-					Id:       strings.TrimSuffix(e.Name, "."+p.Service+"."+p.Domain+"."),
+				s.Nodes = append(s.Nodes, &register.Node{
+					ID:       strings.TrimSuffix(e.Name, "."+p.Service+"."+p.Domain+"."),
 					Address:  fmt.Sprintf("%s:%d", addr, e.Port),
 					Metadata: txt.Metadata,
 				})

 				serviceMap[txt.Version] = s
-			case <-p.Context.Done():
-				close(done)
-				return
+				// case <-p.Context.Done():
+				//	close(done)
+				//	return
 			}
 		}
 	}()

 	// execute the query
-	if err := mdns.Query(p); err != nil {
+	if err := util.Query(ctx, p); err != nil {
 		return nil, err
 	}

@@ -512,7 +521,7 @@ func (m *mdnsRegistry) GetService(service string, opts ...registry.GetOption) ([
 	<-done

 	// create list and return
-	services := make([]*registry.Service, 0, len(serviceMap))
+	services := make([]*register.Service, 0, len(serviceMap))

 	for _, service := range serviceMap {
 		services = append(services, service)
@@ -521,34 +530,34 @@ func (m *mdnsRegistry) GetService(service string, opts ...registry.GetOption) ([
 	return services, nil
 }

-func (m *mdnsRegistry) ListServices(opts ...registry.ListOption) ([]*registry.Service, error) {
+func (m *mdnsRegister) ListServices(ctx context.Context, opts ...register.ListOption) ([]*register.Service, error) {
 	// parse the options
-	var options registry.ListOptions
+	var options register.ListOptions
 	for _, o := range opts {
 		o(&options)
 	}
 	if len(options.Domain) == 0 {
 		options.Domain = m.defaultDomain
 	}
-	if options.Domain == registry.WildcardDomain {
+	if options.Domain == register.WildcardDomain {
 		options.Domain = m.globalDomain
 	}

 	serviceMap := make(map[string]bool)
-	entries := make(chan *mdns.ServiceEntry, 10)
+	entries := make(chan *util.ServiceEntry, 10)
 	done := make(chan bool)

-	p := mdns.DefaultParams("_services")
+	p := util.DefaultParams("_services")
 	// set context with timeout
-	var cancel context.CancelFunc
-	p.Context, cancel = context.WithTimeout(context.Background(), m.opts.Timeout)
-	defer cancel()
+	// var cancel context.CancelFunc
+	// p.Context, cancel = context.WithTimeout(context.Background(), m.opts.Timeout)
+	// defer cancel()
 	// set entries channel
 	p.Entries = entries
 	// set domain
 	p.Domain = options.Domain

-	var services []*registry.Service
+	var services []*register.Service

 	go func() {
 		for {
@@ -563,17 +572,17 @@ func (m *mdnsRegistry) ListServices(opts ...registry.ListOption) ([]*registry.Se
 				name := strings.TrimSuffix(e.Name, "."+p.Service+"."+p.Domain+".")
 				if !serviceMap[name] {
 					serviceMap[name] = true
-					services = append(services, &registry.Service{Name: name})
+					services = append(services, &register.Service{Name: name})
 				}
-			case <-p.Context.Done():
-				close(done)
-				return
+				// case <-p.Context.Done():
+				//	close(done)
+				// return
 			}
 		}
 	}()

 	// execute query
-	if err := mdns.Query(p); err != nil {
+	if err := util.Query(ctx, p); err != nil {
 		return nil, err
 	}

@@ -583,26 +592,30 @@ func (m *mdnsRegistry) ListServices(opts ...registry.ListOption) ([]*registry.Se
 	return services, nil
 }

-func (m *mdnsRegistry) Watch(opts ...registry.WatchOption) (registry.Watcher, error) {
-	var wo registry.WatchOptions
+func (m *mdnsRegister) Watch(ctx context.Context, opts ...register.WatchOption) (register.Watcher, error) {
+	var wo register.WatchOptions
 	for _, o := range opts {
 		o(&wo)
 	}
 	if len(wo.Domain) == 0 {
 		wo.Domain = m.defaultDomain
 	}
-	if wo.Domain == registry.WildcardDomain {
+	if wo.Domain == register.WildcardDomain {
 		wo.Domain = m.globalDomain
 	}

 	md := &mdnsWatcher{
-		id:       uuid.New().String(),
 		wo:       wo,
-		ch:       make(chan *mdns.ServiceEntry, 32),
+		ch:       make(chan *util.ServiceEntry, 32),
 		exit:     make(chan struct{}),
 		domain:   wo.Domain,
 		registry: m,
 	}
+	id, err := id.New()
+	if err != nil {
+		return nil, err
+	}
+	md.id = id

 	m.mtx.Lock()
 	defer m.mtx.Unlock()
@@ -636,14 +649,14 @@ func (m *mdnsRegistry) Watch(opts ...registry.WatchOption) (registry.Watcher, er

 			// reset the listener
 			exit := make(chan struct{})
-			ch := make(chan *mdns.ServiceEntry, 32)
+			ch := make(chan *util.ServiceEntry, 32)
 			m.listener = ch

 			m.mtx.Unlock()

 			// send messages to the watchers
 			go func() {
-				send := func(w *mdnsWatcher, e *mdns.ServiceEntry) {
+				send := func(w *mdnsWatcher, e *util.ServiceEntry) {
 					select {
 					case w.ch <- e:
 					default:
@@ -666,13 +679,12 @@ func (m *mdnsRegistry) Watch(opts ...registry.WatchOption) (registry.Watcher, er
 						m.mtx.RUnlock()
 					}
 				}
-
 			}()

 			// start listening, blocking call
-			mdns.Listen(ch, exit)
+			util.Listen(ch, exit)

-			// mdns.Listen has unblocked
+			// util.Listen has unblocked
 			// kill the saved listener
 			m.mtx.Lock()
 			m.listener = nil
@@ -684,11 +696,11 @@ func (m *mdnsRegistry) Watch(opts ...registry.WatchOption) (registry.Watcher, er
 	return md, nil
 }

-func (m *mdnsRegistry) String() string {
+func (m *mdnsRegister) String() string {
 	return "mdns"
 }

-func (m *mdnsWatcher) Next() (*registry.Result, error) {
+func (m *mdnsWatcher) Next() (*register.Result, error) {
 	for {
 		select {
 		case e := <-m.ch:
@@ -713,7 +725,7 @@ func (m *mdnsWatcher) Next() (*registry.Result, error) {
 				action = "create"
 			}

-			service := &registry.Service{
+			service := &register.Service{
 				Name:      txt.Service,
 				Version:   txt.Version,
 				Endpoints: txt.Endpoints,
@@ -731,22 +743,22 @@ func (m *mdnsWatcher) Next() (*registry.Result, error) {
 				addr = e.AddrV4.String()
 			} else if len(e.AddrV6) > 0 {
 				addr = "[" + e.AddrV6.String() + "]"
-			} else {
-				addr = e.Addr.String()
+				//			} else {
+				//			addr = e.Addr.String()
 			}

-			service.Nodes = append(service.Nodes, &registry.Node{
-				Id:       strings.TrimSuffix(e.Name, suffix),
+			service.Nodes = append(service.Nodes, &register.Node{
+				ID:       strings.TrimSuffix(e.Name, suffix),
 				Address:  fmt.Sprintf("%s:%d", addr, e.Port),
 				Metadata: txt.Metadata,
 			})

-			return &registry.Result{
+			return &register.Result{
 				Action:  action,
 				Service: service,
 			}, nil
 		case <-m.exit:
-			return nil, registry.ErrWatcherStopped
+			return nil, register.ErrWatcherStopped
 		}
 	}
 }
@@ -764,7 +776,11 @@ func (m *mdnsWatcher) Stop() {
 	}
 }

-// NewRegistry returns a new default registry which is mdns
-func NewRegistry(opts ...registry.Option) registry.Registry {
-	return newRegistry(opts...)
+func (m *mdnsRegister) Name() string {
+	return m.opts.Name
+}
+
+// NewRegistry returns a new default registry which is mdns
+func NewRegister(opts ...register.Option) register.Register {
+	return newRegister(opts...)
 }
--- a/mdns_test.go
+++ b/mdns_test.go
@@ -1,26 +1,28 @@
 package mdns

 import (
+	"context"
 	"os"
 	"testing"
 	"time"

-	"github.com/micro/go-micro/v3/registry"
+	"go.unistack.org/micro/v3/register"
 )

 func TestMDNS(t *testing.T) {
-	// skip test in travis because of sendto: operation not permitted error
-	if travis := os.Getenv("TRAVIS"); travis == "true" {
+	ctx := context.Background()
+
+	if len(os.Getenv("INTEGRATION_TESTS")) > 0 {
 		t.Skip()
 	}

-	testData := []*registry.Service{
+	testData := []*register.Service{
 		{
 			Name:    "test1",
 			Version: "1.0.1",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
-					Id:      "test1-1",
+					ID:      "test1-1",
 					Address: "10.0.0.1:10001",
 					Metadata: map[string]string{
 						"foo": "bar",
@@ -31,9 +33,9 @@ func TestMDNS(t *testing.T) {
 		{
 			Name:    "test2",
 			Version: "1.0.2",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
-					Id:      "test2-1",
+					ID:      "test2-1",
 					Address: "10.0.0.2:10002",
 					Metadata: map[string]string{
 						"foo2": "bar2",
@@ -44,9 +46,9 @@ func TestMDNS(t *testing.T) {
 		{
 			Name:    "test3",
 			Version: "1.0.3",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
-					Id:      "test3-1",
+					ID:      "test3-1",
 					Address: "10.0.0.3:10003",
 					Metadata: map[string]string{
 						"foo3": "bar3",
@@ -56,25 +58,19 @@ func TestMDNS(t *testing.T) {
 		},
 	}

-	travis := os.Getenv("TRAVIS")
-
-	var opts []registry.Option
-
-	if travis == "true" {
-		opts = append(opts, registry.Timeout(time.Millisecond*100))
-	}
+	var opts []register.Option

 	// new registry
-	r := NewRegistry(opts...)
+	r := NewRegister(opts...)

 	for _, service := range testData {
 		// register service
-		if err := r.Register(service); err != nil {
+		if err := r.Register(ctx, service); err != nil {
 			t.Fatal(err)
 		}

 		// get registered service
-		s, err := r.GetService(service.Name)
+		s, err := r.LookupService(ctx, service.Name)
 		if err != nil {
 			t.Fatal(err)
 		}
@@ -97,8 +93,8 @@ func TestMDNS(t *testing.T) {

 		node := s[0].Nodes[0]

-		if node.Id != service.Nodes[0].Id {
-			t.Fatalf("Expected node id %s got %s", service.Nodes[0].Id, node.Id)
+		if node.ID != service.Nodes[0].ID {
+			t.Fatalf("Expected node id %s got %s", service.Nodes[0].ID, node.ID)
 		}

 		if node.Address != service.Nodes[0].Address {
@@ -106,7 +102,7 @@ func TestMDNS(t *testing.T) {
 		}
 	}

-	services, err := r.ListServices()
+	services, err := r.ListServices(ctx)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -124,19 +120,18 @@ func TestMDNS(t *testing.T) {
 		}

 		// deregister
-		if err := r.Deregister(service); err != nil {
+		if err := r.Deregister(ctx, service); err != nil {
 			t.Fatal(err)
 		}

 		time.Sleep(time.Millisecond * 5)

 		// check its gone
-		s, _ := r.GetService(service.Name)
+		s, _ := r.LookupService(ctx, service.Name)
 		if len(s) > 0 {
 			t.Fatalf("Expected nothing got %+v", s[0])
 		}
 	}
-
 }

 func TestEncoding(t *testing.T) {
@@ -146,22 +141,6 @@ func TestEncoding(t *testing.T) {
 			Metadata: map[string]string{
 				"foo": "bar",
 			},
-			Endpoints: []*registry.Endpoint{
-				{
-					Name: "endpoint1",
-					Request: &registry.Value{
-						Name: "request",
-						Type: "request",
-					},
-					Response: &registry.Value{
-						Name: "response",
-						Type: "response",
-					},
-					Metadata: map[string]string{
-						"foo1": "bar1",
-					},
-				},
-			},
 		},
 	}

@@ -186,31 +165,28 @@ func TestEncoding(t *testing.T) {
 			t.Fatalf("Expected version %s got %s", d.Version, decoded.Version)
 		}

-		if len(decoded.Endpoints) != len(d.Endpoints) {
-			t.Fatalf("Expected %d endpoints, got %d", len(d.Endpoints), len(decoded.Endpoints))
-		}
-
 		for k, v := range d.Metadata {
 			if val := decoded.Metadata[k]; val != v {
 				t.Fatalf("Expected %s=%s got %s=%s", k, v, k, val)
 			}
 		}
 	}
-
 }

 func TestWatcher(t *testing.T) {
-	if travis := os.Getenv("TRAVIS"); travis == "true" {
+	ctx := context.Background()
+
+	if len(os.Getenv("INTEGRATION_TESTS")) > 0 {
 		t.Skip()
 	}

-	testData := []*registry.Service{
+	testData := []*register.Service{
 		{
 			Name:    "test1",
 			Version: "1.0.1",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
-					Id:      "test1-1",
+					ID:      "test1-1",
 					Address: "10.0.0.1:10001",
 					Metadata: map[string]string{
 						"foo": "bar",
@@ -221,9 +197,9 @@ func TestWatcher(t *testing.T) {
 		{
 			Name:    "test2",
 			Version: "1.0.2",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
-					Id:      "test2-1",
+					ID:      "test2-1",
 					Address: "10.0.0.2:10002",
 					Metadata: map[string]string{
 						"foo2": "bar2",
@@ -234,9 +210,9 @@ func TestWatcher(t *testing.T) {
 		{
 			Name:    "test3",
 			Version: "1.0.3",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
-					Id:      "test3-1",
+					ID:      "test3-1",
 					Address: "10.0.0.3:10003",
 					Metadata: map[string]string{
 						"foo3": "bar3",
@@ -246,10 +222,9 @@ func TestWatcher(t *testing.T) {
 		},
 	}

-	testFn := func(service, s *registry.Service) {
+	testFn := func(service, s *register.Service) {
 		if s == nil {
 			t.Fatalf("Expected one result for %s got nil", service.Name)
-
 		}

 		if s.Name != service.Name {
@@ -266,8 +241,8 @@ func TestWatcher(t *testing.T) {

 		node := s.Nodes[0]

-		if node.Id != service.Nodes[0].Id {
-			t.Fatalf("Expected node id %s got %s", service.Nodes[0].Id, node.Id)
+		if node.ID != service.Nodes[0].ID {
+			t.Fatalf("Expected node id %s got %s", service.Nodes[0].ID, node.ID)
 		}

 		if node.Address != service.Nodes[0].Address {
@@ -275,18 +250,12 @@ func TestWatcher(t *testing.T) {
 		}
 	}

-	travis := os.Getenv("TRAVIS")
-
-	var opts []registry.Option
-
-	if travis == "true" {
-		opts = append(opts, registry.Timeout(time.Millisecond*100))
-	}
+	var opts []register.Option

 	// new registry
-	r := NewRegistry(opts...)
+	r := NewRegister(opts...)

-	w, err := r.Watch()
+	w, err := r.Watch(ctx)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -294,7 +263,7 @@ func TestWatcher(t *testing.T) {

 	for _, service := range testData {
 		// register service
-		if err := r.Register(service); err != nil {
+		if err := r.Register(ctx, service); err != nil {
 			t.Fatal(err)
 		}

@@ -317,7 +286,7 @@ func TestWatcher(t *testing.T) {
 		}

 		// deregister
-		if err := r.Deregister(service); err != nil {
+		if err := r.Deregister(ctx, service); err != nil {
 			t.Fatal(err)
 		}

--- a/options.go
+++ b/options.go
@@ -4,12 +4,12 @@ package mdns
 import (
 	"context"

-	"github.com/micro/go-micro/v3/registry"
+	"go.unistack.org/micro/v3/register"
 )

 // Domain sets the mdnsDomain
-func Domain(d string) registry.Option {
-	return func(o *registry.Options) {
+func Domain(d string) register.Option {
+	return func(o *register.Options) {
 		if o.Context == nil {
 			o.Context = context.Background()
 		}
--- a/util/client.go
+++ b/util/client.go
@@ -0,0 +1,503 @@
+package mdns
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"sync"
+
+	"go.unistack.org/micro/v3/logger"
+	"golang.org/x/net/dns/dnsmessage"
+	"golang.org/x/net/ipv4"
+	"golang.org/x/net/ipv6"
+)
+
+// ServiceEntry is returned after we query for a service
+type ServiceEntry struct {
+	Name       string
+	Host       string
+	AddrV4     net.IP
+	AddrV6     net.IP
+	Port       int
+	Info       string
+	InfoFields []string
+	TTL        int
+	Type       uint16
+
+	hasTXT bool
+	sent   bool
+}
+
+// complete is used to check if we have all the info we need
+func (s *ServiceEntry) complete() bool {
+	return (s.AddrV4 != nil || s.AddrV6 != nil) && s.Port != 0 && s.hasTXT
+}
+
+// QueryParam is used to customize how a Lookup is performed
+type QueryParam struct {
+	Service             string               // Service to lookup
+	Domain              string               // Lookup domain, default "local"
+	Type                dnsmessage.Type      // Lookup type, defaults to dns.TypePTR
+	Interface           *net.Interface       // Multicast interface to use
+	Entries             chan<- *ServiceEntry // Entries Channel
+	WantUnicastResponse bool                 // Unicast response desired, as per 5.4 in RFC
+}
+
+// DefaultParams is used to return a default set of QueryParam's
+func DefaultParams(service string) *QueryParam {
+	qp := &QueryParam{
+		Service:             service,
+		Domain:              "local",
+		Entries:             make(chan *ServiceEntry),
+		WantUnicastResponse: false,
+	}
+	return qp
+}
+
+// Query looks up a given service, in a domain, waiting at most
+// for a timeout before finishing the query. The results are streamed
+// to a channel. Sends will not block, so clients should make sure to
+// either read or buffer.
+func Query(ctx context.Context, params *QueryParam) error {
+	// Create a new client
+	client, err := newClient()
+	if err != nil {
+		return err
+	}
+	defer client.Close()
+
+	// Set the multicast interface
+	if params.Interface != nil {
+		if err := client.setInterface(params.Interface, false); err != nil {
+			return err
+		}
+	}
+
+	// Ensure defaults are set
+	if params.Domain == "" {
+		params.Domain = "local"
+	}
+
+	// Run the query
+	return client.query(ctx, params)
+}
+
+// Listen listens indefinitely for multicast updates
+func Listen(entries chan<- *ServiceEntry, exit chan struct{}) error {
+	// Create a new client
+	client, err := newClient()
+	if err != nil {
+		return err
+	}
+	defer client.Close()
+
+	client.setInterface(nil, true)
+
+	// Start listening for response packets
+	msgCh := make(chan []byte, 32)
+
+	go client.recv(client.ipv4UnicastConn, msgCh)
+	go client.recv(client.ipv6UnicastConn, msgCh)
+	go client.recv(client.ipv4MulticastConn, msgCh)
+	go client.recv(client.ipv6MulticastConn, msgCh)
+
+	sentry := make(map[string]*ServiceEntry)
+
+	for {
+		select {
+		case <-exit:
+			return nil
+		case <-client.closedCh:
+			return nil
+		case msg := <-msgCh:
+			fmt.Printf("%#+v\n", msg)
+			entry := messageToEntry(msg, sentry)
+			if entry == nil {
+				continue
+			}
+
+			// Check if this entry is complete
+			if entry.complete() {
+				if entry.sent {
+					continue
+				}
+				entry.sent = true
+				entries <- entry
+				sentry = make(map[string]*ServiceEntry)
+			} else {
+				// Fire off a node specific query
+				/*
+					h:
+						-&dnsmessage.Header{RecursionDesired: false}
+						m := dnsmessage.NewBuilder()
+						m.SetQuestion(e.Name, dns.TypePTR)
+						if err := client.sendQuery(m); err != nil {
+							logger.Errorf("[ERR] mdns: Failed to query instance %s: %v", e.Name, err)
+						}
+				*/
+			}
+		}
+	}
+
+	return nil
+}
+
+/*
+// Lookup is the same as Query, however it uses all the default parameters
+func Lookup(service string, entries chan<- *ServiceEntry) error {
+	params := DefaultParams(service)
+	params.Entries = entries
+	return Query(params)
+}
+*/
+// Client provides a query interface that can be used to
+// search for service providers using mDNS
+type client struct {
+	ipv4UnicastConn *net.UDPConn
+	ipv6UnicastConn *net.UDPConn
+
+	ipv4MulticastConn *net.UDPConn
+	ipv6MulticastConn *net.UDPConn
+
+	closed    bool
+	closedCh  chan struct{} // TODO(reddaly): This doesn't appear to be used.
+	closeLock sync.RWMutex
+}
+
+// NewClient creates a new mdns Client that can be used to query
+// for records
+func newClient() (*client, error) {
+	// TODO(reddaly): At least attempt to bind to the port required in the spec.
+	// Create a IPv4 listener
+	uconn4, err4 := net.ListenUDP("udp4", &net.UDPAddr{IP: net.IPv4zero, Port: 0})
+	uconn6, err6 := net.ListenUDP("udp6", &net.UDPAddr{IP: net.IPv6zero, Port: 0})
+	if err4 != nil && err6 != nil {
+		logger.Errorf(context.TODO(), "[ERR] mdns: Failed to bind to udp port: %v %v", err4, err6)
+	}
+
+	if uconn4 == nil && uconn6 == nil {
+		return nil, fmt.Errorf("failed to bind to any unicast udp port")
+	}
+
+	if uconn4 == nil {
+		uconn4 = &net.UDPConn{}
+	}
+
+	if uconn6 == nil {
+		uconn6 = &net.UDPConn{}
+	}
+
+	mconn4, err4 := net.ListenUDP("udp4", mdnsWildcardAddrIPv4)
+	mconn6, err6 := net.ListenUDP("udp6", mdnsWildcardAddrIPv6)
+	if err4 != nil && err6 != nil {
+		logger.Errorf(context.TODO(), "[ERR] mdns: Failed to bind to udp port: %v %v", err4, err6)
+	}
+
+	if mconn4 == nil && mconn6 == nil {
+		return nil, fmt.Errorf("failed to bind to any multicast udp port")
+	}
+
+	if mconn4 == nil {
+		mconn4 = &net.UDPConn{}
+	}
+
+	if mconn6 == nil {
+		mconn6 = &net.UDPConn{}
+	}
+
+	p1 := ipv4.NewPacketConn(mconn4)
+	p2 := ipv6.NewPacketConn(mconn6)
+	p1.SetMulticastLoopback(true)
+	p2.SetMulticastLoopback(true)
+
+	ifaces, err := net.Interfaces()
+	if err != nil {
+		return nil, err
+	}
+
+	var errCount1, errCount2 int
+
+	for _, iface := range ifaces {
+		if err := p1.JoinGroup(&iface, &net.UDPAddr{IP: mdnsGroupIPv4}); err != nil {
+			errCount1++
+		}
+		if err := p2.JoinGroup(&iface, &net.UDPAddr{IP: mdnsGroupIPv6}); err != nil {
+			errCount2++
+		}
+	}
+
+	if len(ifaces) == errCount1 && len(ifaces) == errCount2 {
+		return nil, fmt.Errorf("Failed to join multicast group on all interfaces!")
+	}
+
+	c := &client{
+		ipv4MulticastConn: mconn4,
+		ipv6MulticastConn: mconn6,
+		ipv4UnicastConn:   uconn4,
+		ipv6UnicastConn:   uconn6,
+		closedCh:          make(chan struct{}),
+	}
+	return c, nil
+}
+
+// Close is used to cleanup the client
+func (c *client) Close() error {
+	c.closeLock.Lock()
+	defer c.closeLock.Unlock()
+
+	if c.closed {
+		return nil
+	}
+	c.closed = true
+
+	close(c.closedCh)
+
+	if c.ipv4UnicastConn != nil {
+		c.ipv4UnicastConn.Close()
+	}
+	if c.ipv6UnicastConn != nil {
+		c.ipv6UnicastConn.Close()
+	}
+	if c.ipv4MulticastConn != nil {
+		c.ipv4MulticastConn.Close()
+	}
+	if c.ipv6MulticastConn != nil {
+		c.ipv6MulticastConn.Close()
+	}
+
+	return nil
+}
+
+// setInterface is used to set the query interface, uses sytem
+// default if not provided
+func (c *client) setInterface(iface *net.Interface, loopback bool) error {
+	p := ipv4.NewPacketConn(c.ipv4UnicastConn)
+	if err := p.JoinGroup(iface, &net.UDPAddr{IP: mdnsGroupIPv4}); err != nil {
+		return err
+	}
+	p2 := ipv6.NewPacketConn(c.ipv6UnicastConn)
+	if err := p2.JoinGroup(iface, &net.UDPAddr{IP: mdnsGroupIPv6}); err != nil {
+		return err
+	}
+	p = ipv4.NewPacketConn(c.ipv4MulticastConn)
+	if err := p.JoinGroup(iface, &net.UDPAddr{IP: mdnsGroupIPv4}); err != nil {
+		return err
+	}
+	p2 = ipv6.NewPacketConn(c.ipv6MulticastConn)
+	if err := p2.JoinGroup(iface, &net.UDPAddr{IP: mdnsGroupIPv6}); err != nil {
+		return err
+	}
+
+	if loopback {
+		p.SetMulticastLoopback(true)
+		p2.SetMulticastLoopback(true)
+	}
+
+	return nil
+}
+
+// query is used to perform a lookup and stream results
+func (c *client) query(ctx context.Context, params *QueryParam) error {
+	// Create the service name
+	serviceAddr := fmt.Sprintf("%s.%s.", trimDot(params.Service), trimDot(params.Domain))
+
+	// Start listening for response packets
+	msgCh := make(chan []byte, 32)
+	go c.recv(c.ipv4UnicastConn, msgCh)
+	go c.recv(c.ipv6UnicastConn, msgCh)
+	go c.recv(c.ipv4MulticastConn, msgCh)
+	go c.recv(c.ipv6MulticastConn, msgCh)
+
+	//	buf := make([]byte, 2, 514)
+	hdr := dnsmessage.Header{RecursionDesired: false}
+	b := dnsmessage.NewBuilder(nil, hdr)
+	// b.EnableCompression()
+	name, err := dnsmessage.NewName(serviceAddr)
+	if err != nil {
+		return err
+	}
+	q := dnsmessage.Question{Name: name, Class: dnsmessage.ClassINET}
+	if params.Type == 0 {
+		q.Type = dnsmessage.TypePTR
+	} else {
+		q.Type = params.Type
+	}
+	// q.Class |= 1 << 15
+	if err = b.StartQuestions(); err != nil {
+		return err
+	}
+	if err = b.Question(q); err != nil {
+		return err
+	}
+	bbuf, err := b.Finish()
+	if err != nil {
+		return err
+	}
+
+	// Send the query
+	// RFC 6762, section 18.12.  Repurposing of Top Bit of qclass in Question
+	// Section
+	//
+	// In the Question Section of a Multicast DNS query, the top bit of the qclass
+	// field is used to indicate that unicast responses are preferred for this
+	// particular question.  (See Section 5.4.)
+	if err := c.sendQuery(bbuf); err != nil {
+		return err
+	}
+
+	// Map the in-progress responses
+	inprogress := make(map[string]*ServiceEntry)
+
+	for {
+		select {
+		case rsp := <-msgCh:
+			inp := messageToEntry(rsp, inprogress)
+			if inp == nil {
+				continue
+			}
+
+			// Check if this entry is complete
+			if inp.complete() {
+				if inp.sent {
+					continue
+				}
+				inp.sent = true
+				select {
+				case params.Entries <- inp:
+				case <-ctx.Done():
+					return nil
+				}
+			} else {
+				// Fire off a node specific query
+				//				m := new(dns.Msg)
+				//			m.SetQuestion(inp.Name, inp.Type)
+				//			m.RecursionDesired = false
+				var buf []byte
+				if err := c.sendQuery(buf); err != nil {
+					logger.Errorf(context.TODO(), "[ERR] mdns: Failed to query instance %s: %v", inp.Name, err)
+				}
+			}
+		case <-ctx.Done():
+			return nil
+		}
+	}
+}
+
+// sendQuery is used to multicast a query out
+func (c *client) sendQuery(buf []byte) error {
+	if c.ipv4UnicastConn != nil {
+		c.ipv4UnicastConn.WriteToUDP(buf, ipv4Addr)
+	}
+	if c.ipv6UnicastConn != nil {
+		c.ipv6UnicastConn.WriteToUDP(buf, ipv6Addr)
+	}
+	return nil
+}
+
+// recv is used to receive until we get a shutdown
+func (c *client) recv(l *net.UDPConn, msgCh chan []byte) {
+	if l == nil {
+		return
+	}
+	buf := make([]byte, 65536)
+	for {
+		select {
+		case <-c.closedCh:
+			return
+		default:
+			c.closeLock.Lock()
+			if c.closed {
+				c.closeLock.Unlock()
+				return
+			}
+			c.closeLock.Unlock()
+			n, err := l.Read(buf)
+			if err != nil {
+				if logger.V(logger.DebugLevel) {
+					logger.Debug(context.TODO(), err)
+				}
+				continue
+			}
+			msgCh <- buf[:n]
+		}
+	}
+}
+
+/*
+// ensureName is used to ensure the named node is in progress
+func ensureName(inprogress map[string]*ServiceEntry, name string, typ uint16) *ServiceEntry {
+	if inp, ok := inprogress[name]; ok {
+		return inp
+	}
+	inp := &ServiceEntry{
+		Name: name,
+		Type: typ,
+	}
+	inprogress[name] = inp
+	return inp
+}
+
+// alias is used to setup an alias between two entries
+func alias(inprogress map[string]*ServiceEntry, src, dst string, typ uint16) {
+	srcEntry := ensureName(inprogress, src, typ)
+	inprogress[dst] = srcEntry
+}
+*/
+func messageToEntry(m []byte, inprogress map[string]*ServiceEntry) *ServiceEntry {
+	var inp *ServiceEntry
+	/*
+		for _, answer := range append(m.Answers, m.Additionals...) {
+			// TODO(reddaly): Check that response corresponds to serviceAddr?
+			switch answer.Header.Type {
+			case dnsmessage.TypePTR:
+				rr := answer.Body.(*dnsmessage.PTRResource)
+				// Create new entry for this
+				inp = ensureName(inprogress, rr.Ptr, rr.Hdr.Rrtype)
+				if inp.complete() {
+					continue
+				}
+			case dnsmessage.TypeSRV:
+				// Check for a target mismatch
+				if rr.Target != rr.Hdr.Name {
+					alias(inprogress, rr.Hdr.Name, rr.Target, rr.Hdr.Rrtype)
+				}
+
+				// Get the port
+				inp = ensureName(inprogress, rr.Hdr.Name, rr.Hdr.Rrtype)
+				if inp.complete() {
+					continue
+				}
+				inp.Host = rr.Target
+				inp.Port = int(rr.Port)
+			case dnsmessage.TypeTXT:
+				// Pull out the txt
+				inp = ensureName(inprogress, rr.Hdr.Name, rr.Hdr.Rrtype)
+				if inp.complete() {
+					continue
+				}
+				inp.Info = strings.Join(rr.Txt, "|")
+				inp.InfoFields = rr.Txt
+				inp.hasTXT = true
+			case dnsmessage.TypeA:
+				// Pull out the IP
+				inp = ensureName(inprogress, rr.Hdr.Name, rr.Hdr.Rrtype)
+				if inp.complete() {
+					continue
+				}
+				inp.AddrV4 = rr.A
+			case dnsmessage.TypeAAAA:
+				// Pull out the IP
+				inp = ensureName(inprogress, rr.Hdr.Name, rr.Hdr.Rrtype)
+				if inp.complete() {
+					continue
+				}
+				inp.AddrV6 = rr.AAAA
+			}
+
+			if inp != nil {
+				inp.TTL = int(answer.Header().Ttl)
+			}
+		}
+	*/
+	return inp
+}
--- a/util/dns_sd.go
+++ b/util/dns_sd.go
@@ -0,0 +1,84 @@
+package mdns
+
+import "github.com/miekg/dns"
+
+// DNSSDService is a service that complies with the DNS-SD (RFC 6762) and MDNS
+// (RFC 6762) specs for local, multicast-DNS-based discovery.
+//
+// DNSSDService implements the Zone interface and wraps an MDNSService instance.
+// To deploy an mDNS service that is compliant with DNS-SD, it's recommended to
+// register only the wrapped instance with the server.
+//
+// Example usage:
+//     service := &mdns.DNSSDService{
+//       MDNSService: &mdns.MDNSService{
+// 	       Instance: "My Foobar Service",
+// 	       Service: "_foobar._tcp",
+// 	       Port:    8000,
+//        }
+//      }
+//      server, err := mdns.NewServer(&mdns.Config{Zone: service})
+//      if err != nil {
+//        log.Fatalf("Error creating server: %v", err)
+//      }
+//      defer server.Shutdown()
+type DNSSDService struct {
+	MDNSService *MDNSService
+}
+
+// Records returns DNS records in response to a DNS question.
+//
+// This function returns the DNS response of the underlying MDNSService
+// instance.  It also returns a PTR record for a request for "
+// _services._dns-sd._udp.<Domain>", as described in section 9 of RFC 6763
+// ("Service Type Enumeration"), to allow browsing of the underlying MDNSService
+// instance.
+func (s *DNSSDService) Records(q dns.Question) []dns.RR {
+	var recs []dns.RR
+	if q.Name == "_services._dns-sd._udp."+s.MDNSService.Domain+"." {
+		recs = s.dnssdMetaQueryRecords(q)
+	}
+	return append(recs, s.MDNSService.Records(q)...)
+}
+
+// dnssdMetaQueryRecords returns the DNS records in response to a "meta-query"
+// issued to browse for DNS-SD services, as per section 9. of RFC6763.
+//
+// A meta-query has a name of the form "_services._dns-sd._udp.<Domain>" where
+// Domain is a fully-qualified domain, such as "local."
+func (s *DNSSDService) dnssdMetaQueryRecords(q dns.Question) []dns.RR {
+	// Intended behavior, as described in the RFC:
+	//     ...it may be useful for network administrators to find the list of
+	//     advertised service types on the network, even if those Service Names
+	//     are just opaque identifiers and not particularly informative in
+	//     isolation.
+	//
+	//     For this purpose, a special meta-query is defined.  A DNS query for PTR
+	//     records with the name "_services._dns-sd._udp.<Domain>" yields a set of
+	//     PTR records, where the rdata of each PTR record is the two-abel
+	//     <Service> name, plus the same domain, e.g., "_http._tcp.<Domain>".
+	//     Including the domain in the PTR rdata allows for slightly better name
+	//     compression in Unicast DNS responses, but only the first two labels are
+	//     relevant for the purposes of service type enumeration.  These two-label
+	//     service types can then be used to construct subsequent Service Instance
+	//     Enumeration PTR queries, in this <Domain> or others, to discover
+	//     instances of that service type.
+	return []dns.RR{
+		&dns.PTR{
+			Hdr: dns.RR_Header{
+				Name:   q.Name,
+				Rrtype: dns.TypePTR,
+				Class:  dns.ClassINET,
+				Ttl:    defaultTTL,
+			},
+			Ptr: s.MDNSService.serviceAddr,
+		},
+	}
+}
+
+// Announcement returns DNS records that should be broadcast during the initial
+// availability of the service, as described in section 8.3 of RFC 6762.
+// TODO(reddaly): Add this when Announcement is added to the mdns.Zone interface.
+//func (s *DNSSDService) Announcement() []dns.RR {
+//	return s.MDNSService.Announcement()
+//}
--- a/util/dns_sd_test.go
+++ b/util/dns_sd_test.go
@@ -0,0 +1,71 @@
+// +build ignore
+
+package mdns
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/miekg/dns"
+)
+
+type mockMDNSService struct{}
+
+func (s *mockMDNSService) Records(q dns.Question) []dns.RR {
+	return []dns.RR{
+		&dns.PTR{
+			Hdr: dns.RR_Header{
+				Name:   "fakerecord",
+				Rrtype: dns.TypePTR,
+				Class:  dns.ClassINET,
+				Ttl:    42,
+			},
+			Ptr: "fake.local.",
+		},
+	}
+}
+
+func (s *mockMDNSService) Announcement() []dns.RR {
+	return []dns.RR{
+		&dns.PTR{
+			Hdr: dns.RR_Header{
+				Name:   "fakeannounce",
+				Rrtype: dns.TypePTR,
+				Class:  dns.ClassINET,
+				Ttl:    42,
+			},
+			Ptr: "fake.local.",
+		},
+	}
+}
+
+func TestDNSSDServiceRecords(t *testing.T) {
+	s := &DNSSDService{
+		MDNSService: &MDNSService{
+			serviceAddr: "_foobar._tcp.local.",
+			Domain:      "local",
+		},
+	}
+	q := dns.Question{
+		Name:   "_services._dns-sd._udp.local.",
+		Qtype:  dns.TypePTR,
+		Qclass: dns.ClassINET,
+	}
+	recs := s.Records(q)
+	if got, want := len(recs), 1; got != want {
+		t.Fatalf("s.Records(%v) returned %v records, want %v", q, got, want)
+	}
+
+	want := dns.RR(&dns.PTR{
+		Hdr: dns.RR_Header{
+			Name:   "_services._dns-sd._udp.local.",
+			Rrtype: dns.TypePTR,
+			Class:  dns.ClassINET,
+			Ttl:    defaultTTL,
+		},
+		Ptr: "_foobar._tcp.local.",
+	})
+	if got := recs[0]; !reflect.DeepEqual(got, want) {
+		t.Errorf("s.Records()[0] = %v, want %v", got, want)
+	}
+}
--- a/util/server.go
+++ b/util/server.go
@@ -0,0 +1,545 @@
+package mdns
+
+import (
+	"fmt"
+	"log"
+	"net"
+	"sync"
+	"sync/atomic"
+
+	"github.com/miekg/dns"
+	registry "go.unistack.org/micro/v3/register"
+	regutil "go.unistack.org/micro/v3/util/register"
+	"golang.org/x/net/dns/dnsmessage"
+	"golang.org/x/net/ipv4"
+	"golang.org/x/net/ipv6"
+)
+
+var (
+	mdnsGroupIPv4 = net.ParseIP("224.0.0.251")
+	mdnsGroupIPv6 = net.ParseIP("ff02::fb")
+
+	// mDNS wildcard addresses
+	mdnsWildcardAddrIPv4 = &net.UDPAddr{
+		IP:   net.ParseIP("224.0.0.0"),
+		Port: 5353,
+	}
+	mdnsWildcardAddrIPv6 = &net.UDPAddr{
+		IP:   net.ParseIP("ff02::"),
+		Port: 5353,
+	}
+
+	// mDNS endpoint addresses
+	ipv4Addr = &net.UDPAddr{
+		IP:   mdnsGroupIPv4,
+		Port: 5353,
+	}
+	ipv6Addr = &net.UDPAddr{
+		IP:   mdnsGroupIPv6,
+		Port: 5353,
+	}
+)
+
+// Config is used to configure the mDNS server
+type Config struct {
+	// Zone must be provided to support responding to queries
+	Zone Zone
+
+	// Iface if provided binds the multicast listener to the given
+	// interface. If not provided, the system default multicase interface
+	// is used.
+	Iface *net.Interface
+
+	// Port If it is not 0, replace the port 5353 with this port number.
+	Port int
+}
+
+// mDNS server is used to listen for mDNS queries and respond if we
+// have a matching local record
+type Server struct {
+	config *Config
+
+	ipv4conn *net.UDPConn
+	ipv6conn *net.UDPConn
+
+	shutdown     bool
+	shutdownCh   chan struct{}
+	shutdownLock sync.Mutex
+	wg           sync.WaitGroup
+
+	updates  chan *registry.Service
+	services map[string][]*registry.Service
+	records  map[string][]dnsmessage.Resource
+
+	sync.RWMutex
+}
+
+// NewServer is used to create a new mDNS server from a config
+func NewServer(config *Config) (*Server, error) {
+	setCustomPort(config.Port)
+
+	// Create the listeners
+	// Create wildcard connections (because :5353 can be already taken by other apps)
+	ipv4conn, _ := net.ListenUDP("udp4", mdnsWildcardAddrIPv4)
+	ipv6conn, _ := net.ListenUDP("udp6", mdnsWildcardAddrIPv6)
+	if ipv4conn == nil && ipv6conn == nil {
+		return nil, fmt.Errorf("[ERR] mdns: Failed to bind to any udp port!")
+	}
+
+	if ipv4conn == nil {
+		ipv4conn = &net.UDPConn{}
+	}
+	if ipv6conn == nil {
+		ipv6conn = &net.UDPConn{}
+	}
+
+	// Join multicast groups to receive announcements
+	p4 := ipv4.NewPacketConn(ipv4conn)
+	p6 := ipv6.NewPacketConn(ipv6conn)
+	p4.SetMulticastLoopback(true)
+	p6.SetMulticastLoopback(true)
+
+	if config.Iface != nil {
+		if err := p4.JoinGroup(config.Iface, &net.UDPAddr{IP: mdnsGroupIPv4}); err != nil {
+			return nil, err
+		}
+		if err := p6.JoinGroup(config.Iface, &net.UDPAddr{IP: mdnsGroupIPv6}); err != nil {
+			return nil, err
+		}
+	} else {
+		ifaces, err := net.Interfaces()
+		if err != nil {
+			return nil, err
+		}
+		errCount1, errCount2 := 0, 0
+		for _, iface := range ifaces {
+			if err := p4.JoinGroup(&iface, &net.UDPAddr{IP: mdnsGroupIPv4}); err != nil {
+				errCount1++
+			}
+			if err := p6.JoinGroup(&iface, &net.UDPAddr{IP: mdnsGroupIPv6}); err != nil {
+				errCount2++
+			}
+		}
+		if len(ifaces) == errCount1 && len(ifaces) == errCount2 {
+			return nil, fmt.Errorf("Failed to join multicast group on all interfaces!")
+		}
+	}
+
+	s := &Server{
+		config:     config,
+		ipv4conn:   ipv4conn,
+		ipv6conn:   ipv6conn,
+		shutdownCh: make(chan struct{}),
+		records:    make(map[string][]dnsmessage.Resource),
+		services:   make(map[string][]*registry.Service),
+		updates:    make(chan *registry.Service),
+	}
+
+	go s.recv(s.ipv4conn)
+	go s.recv(s.ipv6conn)
+
+	go s.update()
+	// s.wg.Add(1)
+	// go s.probe()
+
+	return s, nil
+}
+
+func (s *Server) update() {
+	var err error
+	var buf []byte
+	for svc := range s.updates {
+		fmt.Printf("update %#+v\n", svc)
+		if err = s.serviceToPacket(svc, buf); err != nil {
+			fmt.Printf("%v\n", err)
+		} else {
+			if s.sendResponse(buf, mdnsWildcardAddrIPv4); err != nil {
+				fmt.Printf("%v\n", err)
+			}
+		}
+	}
+}
+
+// Shutdown is used to shutdown the listener
+func (s *Server) Shutdown() error {
+	s.shutdownLock.Lock()
+	defer s.shutdownLock.Unlock()
+
+	if s.shutdown {
+		return nil
+	}
+
+	s.shutdown = true
+	close(s.shutdownCh)
+	s.unregister()
+
+	if s.ipv4conn != nil {
+		s.ipv4conn.Close()
+	}
+	if s.ipv6conn != nil {
+		s.ipv6conn.Close()
+	}
+
+	//	s.wg.Wait()
+	return nil
+}
+
+// recv is a long running routine to receive packets from an interface
+func (s *Server) recv(c *net.UDPConn) {
+	if c == nil {
+		return
+	}
+	buf := make([]byte, 65536)
+	for {
+		s.shutdownLock.Lock()
+		if s.shutdown {
+			s.shutdownLock.Unlock()
+			return
+		}
+		s.shutdownLock.Unlock()
+		n, from, err := c.ReadFrom(buf)
+		if err != nil {
+			continue
+		}
+		if err := s.parsePacket(buf[:n], from); err != nil {
+			log.Printf("[ERR] mdns: Failed to handle query: %v", err)
+		}
+	}
+}
+
+// parsePacket is used to parse an incoming packet
+func (s *Server) parsePacket(buf []byte, from net.Addr) error {
+	var p dnsmessage.Parser
+	hdr, err := p.Start(buf)
+	if err != nil {
+		return err
+	}
+	return s.handleQuery(hdr, p, from)
+}
+
+func (s *Server) LookupService(name string, opts ...registry.LookupOption) ([]*registry.Service, error) {
+	return nil, nil
+}
+
+func (s *Server) Register(service *registry.Service, opts ...registry.RegisterOption) error {
+	name := service.Name + ".micro."
+	s.Lock()
+	svcs, ok := s.services[name]
+	if !ok {
+		s.services[name] = []*registry.Service{service}
+	} else {
+		s.services[name] = regutil.Merge([]*registry.Service{service}, svcs)
+	}
+	s.Unlock()
+	s.updates <- service
+	return nil
+}
+
+func (s *Server) serviceToPacket(svc *registry.Service, buf []byte) error {
+	var err error
+	var name dnsmessage.Name
+
+	b := dnsmessage.NewBuilder(buf, dnsmessage.Header{})
+	b.EnableCompression()
+	if err = b.StartAnswers(); err != nil {
+		return err
+	}
+
+	if name, err = dnsmessage.NewName(svc.Name + ".micro."); err != nil {
+		return err
+	}
+
+	if err = b.AResource(dnsmessage.ResourceHeader{Name: name, Class: dnsmessage.ClassINET, TTL: 60},
+		dnsmessage.AResource{}); err != nil {
+		return err
+	}
+
+	buf, err = b.Finish()
+
+	return err
+}
+
+// handleQuery is used to handle an incoming query
+func (s *Server) handleQuery(hdr dnsmessage.Header, p dnsmessage.Parser, from net.Addr) error {
+	if hdr.OpCode != 0 {
+		// "In both multicast query and multicast response messages, the OPCODE MUST
+		// be zero on transmission (only standard queries are currently supported
+		// over multicast).  Multicast DNS messages received with an OPCODE other
+		// than zero MUST be silently ignored."  Note: OpcodeQuery == 0
+		return fmt.Errorf("mdns: received query with non-zero Opcode %v: %v", hdr.OpCode, hdr)
+	}
+	if hdr.RCode != dnsmessage.RCodeSuccess {
+		// "In both multicast query and multicast response messages, the Response
+		// Code MUST be zero on transmission.  Multicast DNS messages received with
+		// non-zero Response Codes MUST be silently ignored."
+		return fmt.Errorf("mdns: received query with non-zero Rcode %v: %v", hdr.RCode, hdr)
+	}
+
+	// TODO(reddaly): Handle "TC (Truncated) Bit":
+	//    In query messages, if the TC bit is set, it means that additional
+	//    Known-Answer records may be following shortly.  A responder SHOULD
+	//    record this fact, and wait for those additional Known-Answer records,
+	//    before deciding whether to respond.  If the TC bit is clear, it means
+	//    that the querying host has no additional Known Answers.
+	if hdr.Truncated {
+		return fmt.Errorf("[ERR] mdns: support for DNS requests with high truncated bit not implemented: %v", hdr)
+	}
+
+	questions, err := p.AllQuestions()
+	if err != nil {
+		return err
+	}
+
+	var unicastAnswer, multicastAnswer []dnsmessage.Resource
+
+	for _, question := range questions {
+		mrecs, urecs := s.handleQuestion(question)
+		fmt.Printf("%#+v %#+v\n", mrecs, urecs)
+		multicastAnswer = append(multicastAnswer, mrecs...)
+		unicastAnswer = append(unicastAnswer, urecs...)
+	}
+
+	rsp := func(unistact bool, buf []byte) error {
+		// See section 18 of RFC 6762 for rules about DNS headers.
+		// 18.1: ID (Query Identifier)
+		// 0 for multicast response, query.Id for unicast response
+		id := uint16(0)
+		if true /*unicast*/ {
+			id = hdr.ID
+		}
+
+		hdrnew := dnsmessage.Header{
+			ID: id,
+			// 18.2: QR (Query/Response) Bit - must be set to 1 in response.
+			Response: true,
+			// 18.3: OPCODE - must be zero in response (OpcodeQuery == 0)
+			OpCode: 0,
+			// 18.4: AA (Authoritative Answer) Bit - must be set to 1
+			Authoritative: true,
+			// The following fields must all be set to 0:
+			// 18.5: TC (TRUNCATED) Bit
+			// 18.6: RD (Recursion Desired) Bit
+			// 18.7: RA (Recursion Available) Bit
+			// 18.8: Z (Zero) Bit
+			// 18.9: AD (Authentic Data) Bit
+			// 18.10: CD (Checking Disabled) Bit
+			// 18.11: RCODE (Response Code)
+		}
+
+		b := dnsmessage.NewBuilder(buf, hdrnew)
+		b.EnableCompression()
+
+		buf, err = b.Finish()
+
+		return err
+	}
+
+	var buf1 []byte
+	if err = rsp(false, buf1); err != nil {
+		return err
+	}
+	if len(buf1) > 0 {
+		if err := s.sendResponse(buf1, from); err != nil {
+			return fmt.Errorf("mdns: error sending multicast response: %v", err)
+		}
+	}
+
+	var buf2 []byte
+	if err = rsp(true, buf2); err != nil {
+		return err
+	}
+	if len(buf2) > 0 {
+		if err := s.sendResponse(buf2, from); err != nil {
+			return fmt.Errorf("mdns: error sending unicast response: %v", err)
+		}
+	}
+
+	return nil
+}
+
+// handleQuestion is used to handle an incoming question
+//
+// The response to a question may be transmitted over multicast, unicast, or
+// both.  The return values are DNS records for each transmission type.
+func (s *Server) handleQuestion(q dnsmessage.Question) (multicastRecs, unicastRecs []dnsmessage.Resource) {
+	records, ok := s.records[q.Name.String()]
+
+	// Handle unicast and multicast responses.
+	// TODO(reddaly): The decision about sending over unicast vs. multicast is not
+	// yet fully compliant with RFC 6762.  For example, the unicast bit should be
+	// ignored if the records in question are close to TTL expiration.  For now,
+	// we just use the unicast bit to make the decision, as per the spec:
+	//     RFC 6762, section 18.12.  Repurposing of Top Bit of qclass in Question
+	//     Section
+	//
+	//     In the Question Section of a Multicast DNS query, the top bit of the
+	//     qclass field is used to indicate that unicast responses are preferred
+	//     for this particular question.  (See Section 5.4.)
+	if ok {
+		if q.Class&(1<<15) != 0 {
+			return nil, records
+		}
+
+		return records, nil
+	}
+
+	services, ok := s.services[q.Name.String()]
+	if !ok {
+		return nil, nil
+	}
+
+	fmt.Printf("%s\n", q.Name.String())
+	fmt.Printf("%#+v\n", services)
+	return nil, nil
+}
+
+/*
+func (s *Server) probe() {
+	defer s.wg.Done()
+
+	sd, ok := s.config.Zone.(*MDNSService)
+	if !ok {
+		return
+	}
+
+	name := fmt.Sprintf("%s.%s.%s.", sd.Instance, trimDot(sd.Service), trimDot(sd.Domain))
+
+	q := new(dns.Msg)
+	q.SetQuestion(name, dns.TypePTR)
+	q.RecursionDesired = false
+
+	srv := &dns.SRV{
+		Hdr: dns.RR_Header{
+			Name:   name,
+			Rrtype: dns.TypeSRV,
+			Class:  dns.ClassINET,
+			Ttl:    defaultTTL,
+		},
+		Priority: 0,
+		Weight:   0,
+		Port:     uint16(sd.Port),
+		Target:   sd.HostName,
+	}
+	txt := &dns.TXT{
+		Hdr: dns.RR_Header{
+			Name:   name,
+			Rrtype: dns.TypeTXT,
+			Class:  dns.ClassINET,
+			Ttl:    defaultTTL,
+		},
+		Txt: sd.TXT,
+	}
+	q.Ns = []dns.RR{srv, txt}
+
+	randomizer := rand.New(rand.NewSource(time.Now().UnixNano()))
+
+	for i := 0; i < 3; i++ {
+		if err := s.SendMulticast(q); err != nil {
+			log.Println("[ERR] mdns: failed to send probe:", err.Error())
+		}
+		time.Sleep(time.Duration(randomizer.Intn(250)) * time.Millisecond)
+	}
+
+	resp := new(dns.Msg)
+	resp.MsgHdr.Response = true
+
+	// set for query
+	q.SetQuestion(name, dns.TypeANY)
+
+	resp.Answer = append(resp.Answer, s.config.Zone.Records(q.Question[0])...)
+
+	// reset
+	q.SetQuestion(name, dns.TypePTR)
+
+	// From RFC6762
+	//    The Multicast DNS responder MUST send at least two unsolicited
+	//    responses, one second apart. To provide increased robustness against
+	//    packet loss, a responder MAY send up to eight unsolicited responses,
+	//    provided that the interval between unsolicited responses increases by
+	//    at least a factor of two with every response sent.
+	timeout := 1 * time.Second
+	timer := time.NewTimer(timeout)
+	for i := 0; i < 3; i++ {
+		if err := s.SendMulticast(resp); err != nil {
+			log.Println("[ERR] mdns: failed to send announcement:", err.Error())
+		}
+		select {
+		case <-timer.C:
+			timeout *= 2
+			timer.Reset(timeout)
+		case <-s.shutdownCh:
+			timer.Stop()
+			return
+		}
+	}
+}
+*/
+
+// multicastResponse us used to send a multicast response packet
+func (s *Server) SendMulticast(msg *dns.Msg) error {
+	buf, err := msg.Pack()
+	if err != nil {
+		return err
+	}
+	if s.ipv4conn != nil {
+		s.ipv4conn.WriteToUDP(buf, ipv4Addr)
+	}
+	if s.ipv6conn != nil {
+		s.ipv6conn.WriteToUDP(buf, ipv6Addr)
+	}
+	return nil
+}
+
+// sendResponse is used to send a response packet
+func (s *Server) sendResponse(buf []byte, from net.Addr) error {
+	var err error
+
+	// TODO(reddaly): Respect the unicast argument, and allow sending responses
+	// over multicast.
+
+	// Determine the socket to send from
+	addr := from.(*net.UDPAddr)
+	if addr.IP.To4() != nil {
+		_, err = s.ipv4conn.WriteToUDP(buf, addr)
+	} else {
+		_, err = s.ipv6conn.WriteToUDP(buf, addr)
+	}
+
+	return err
+}
+
+func (s *Server) unregister() error {
+	sd, ok := s.config.Zone.(*MDNSService)
+	if !ok {
+		return nil
+	}
+
+	atomic.StoreUint32(&sd.TTL, 0)
+	name := fmt.Sprintf("%s.%s.%s.", sd.Instance, trimDot(sd.Service), trimDot(sd.Domain))
+
+	q := new(dns.Msg)
+	q.SetQuestion(name, dns.TypeANY)
+
+	resp := new(dns.Msg)
+	resp.MsgHdr.Response = true
+	resp.Answer = append(resp.Answer, s.config.Zone.Records(q.Question[0])...)
+
+	return s.SendMulticast(resp)
+}
+
+func setCustomPort(port int) {
+	if port != 0 {
+		if mdnsWildcardAddrIPv4.Port != port {
+			mdnsWildcardAddrIPv4.Port = port
+		}
+		if mdnsWildcardAddrIPv6.Port != port {
+			mdnsWildcardAddrIPv6.Port = port
+		}
+		if ipv4Addr.Port != port {
+			ipv4Addr.Port = port
+		}
+		if ipv6Addr.Port != port {
+			ipv6Addr.Port = port
+		}
+	}
+}
--- a/util/server_test.go
+++ b/util/server_test.go
@@ -0,0 +1,65 @@
+// +build ignore
+
+package mdns
+
+import (
+	"testing"
+
+	registry "go.unistack.org/micro/v3/register"
+)
+
+var (
+	svc1 = &registry.Service{
+		Name:    "foo",
+		Version: "latest",
+		Nodes: []*registry.Node{
+			&registry.Node{
+				Id:      "1",
+				Address: "127.0.0.1",
+			},
+		},
+	}
+)
+
+func TestServer_StartStop(t *testing.T) {
+	//s := makeService(t)
+	srv, err := NewServer(&Config{})
+	if err != nil {
+		t.Fatalf("err: %v", err)
+	}
+	if err = srv.Shutdown(); err != nil {
+		t.Fatalf("err: %v", err)
+	}
+}
+
+func TestServer_Lookup(t *testing.T) {
+	srv1, err := NewServer(&Config{})
+	if err != nil {
+		t.Fatalf("err: %v", err)
+	}
+	defer srv1.Shutdown()
+	/*
+		srv2, err := NewServer(&Config{})
+		if err != nil {
+			t.Fatalf("err: %v", err)
+		}
+		defer srv2.Shutdown()
+	*/
+	if err = srv1.Register(svc1); err != nil {
+		t.Fatalf("err: %v", err)
+	}
+	/*
+		select {}
+		services, err := srv2.GetService("foo")
+		if err != nil {
+			t.Fatalf("err: %v", err)
+		} else if len(services) == 0 {
+			t.Fatalf("empty service")
+		}
+
+		for _, svc := range services {
+			fmt.Printf("%#+v\n", svc)
+		}
+	*/
+	select {}
+}
--- a/util/zone.go
+++ b/util/zone.go
@@ -0,0 +1,309 @@
+package mdns
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"strings"
+	"sync/atomic"
+
+	"github.com/miekg/dns"
+)
+
+const (
+	// defaultTTL is the default TTL value in returned DNS records in seconds.
+	defaultTTL = 120
+)
+
+// Zone is the interface used to integrate with the server and
+// to serve records dynamically
+type Zone interface {
+	// Records returns DNS records in response to a DNS question.
+	Records(q dns.Question) []dns.RR
+}
+
+// MDNSService is used to export a named service by implementing a Zone
+type MDNSService struct {
+	Instance     string   // Instance name (e.g. "hostService name")
+	Service      string   // Service name (e.g. "_http._tcp.")
+	Domain       string   // If blank, assumes "local"
+	HostName     string   // Host machine DNS name (e.g. "mymachine.net.")
+	Port         int      // Service Port
+	IPs          []net.IP // IP addresses for the service's host
+	TXT          []string // Service TXT records
+	TTL          uint32
+	serviceAddr  string // Fully qualified service address
+	instanceAddr string // Fully qualified instance address
+	enumAddr     string // _services._dns-sd._udp.<domain>
+}
+
+// validateFQDN returns an error if the passed string is not a fully qualified
+// hdomain name (more specifically, a hostname).
+func validateFQDN(s string) error {
+	if len(s) == 0 {
+		return fmt.Errorf("FQDN must not be blank")
+	}
+	if s[len(s)-1] != '.' {
+		return fmt.Errorf("FQDN must end in period: %s", s)
+	}
+	// TODO(reddaly): Perform full validation.
+
+	return nil
+}
+
+// NewMDNSService returns a new instance of MDNSService.
+//
+// If domain, hostName, or ips is set to the zero value, then a default value
+// will be inferred from the operating system.
+//
+// TODO(reddaly): This interface may need to change to account for "unique
+// record" conflict rules of the mDNS protocol.  Upon startup, the server should
+// check to ensure that the instance name does not conflict with other instance
+// names, and, if required, select a new name.  There may also be conflicting
+// hostName A/AAAA records.
+func NewMDNSService(instance, service, domain, hostName string, port int, ips []net.IP, txt []string) (*MDNSService, error) {
+	// Sanity check inputs
+	if instance == "" {
+		return nil, fmt.Errorf("missing service instance name")
+	}
+	if service == "" {
+		return nil, fmt.Errorf("missing service name")
+	}
+	if port == 0 {
+		return nil, fmt.Errorf("missing service port")
+	}
+
+	// Set default domain
+	if domain == "" {
+		domain = "local."
+	}
+	if err := validateFQDN(domain); err != nil {
+		return nil, fmt.Errorf("domain %q is not a fully-qualified domain name: %v", domain, err)
+	}
+
+	// Get host information if no host is specified.
+	if hostName == "" {
+		var err error
+		hostName, err = os.Hostname()
+		if err != nil {
+			return nil, fmt.Errorf("could not determine host: %v", err)
+		}
+		hostName = fmt.Sprintf("%s.", hostName)
+	}
+	if err := validateFQDN(hostName); err != nil {
+		return nil, fmt.Errorf("hostName %q is not a fully-qualified domain name: %v", hostName, err)
+	}
+
+	if len(ips) == 0 {
+		var err error
+		ips, err = net.LookupIP(trimDot(hostName))
+		if err != nil {
+			// Try appending the host domain suffix and lookup again
+			// (required for Linux-based hosts)
+			tmpHostName := fmt.Sprintf("%s%s", hostName, domain)
+
+			ips, err = net.LookupIP(trimDot(tmpHostName))
+
+			if err != nil {
+				return nil, fmt.Errorf("could not determine host IP addresses for %s", hostName)
+			}
+		}
+	}
+	for _, ip := range ips {
+		if ip.To4() == nil && ip.To16() == nil {
+			return nil, fmt.Errorf("invalid IP address in IPs list: %v", ip)
+		}
+	}
+
+	return &MDNSService{
+		Instance:     instance,
+		Service:      service,
+		Domain:       domain,
+		HostName:     hostName,
+		Port:         port,
+		IPs:          ips,
+		TXT:          txt,
+		TTL:          defaultTTL,
+		serviceAddr:  fmt.Sprintf("%s.%s.", trimDot(service), trimDot(domain)),
+		instanceAddr: fmt.Sprintf("%s.%s.%s.", instance, trimDot(service), trimDot(domain)),
+		enumAddr:     fmt.Sprintf("_services._dns-sd._udp.%s.", trimDot(domain)),
+	}, nil
+}
+
+// trimDot is used to trim the dots from the start or end of a string
+func trimDot(s string) string {
+	return strings.Trim(s, ".")
+}
+
+// Records returns DNS records in response to a DNS question.
+func (m *MDNSService) Records(q dns.Question) []dns.RR {
+	switch q.Name {
+	case m.enumAddr:
+		return m.serviceEnum(q)
+	case m.serviceAddr:
+		return m.serviceRecords(q)
+	case m.instanceAddr:
+		return m.instanceRecords(q)
+	case m.HostName:
+		if q.Qtype == dns.TypeA || q.Qtype == dns.TypeAAAA {
+			return m.instanceRecords(q)
+		}
+		fallthrough
+	default:
+		return nil
+	}
+}
+
+func (m *MDNSService) serviceEnum(q dns.Question) []dns.RR {
+	switch q.Qtype {
+	case dns.TypeANY:
+		fallthrough
+	case dns.TypePTR:
+		rr := &dns.PTR{
+			Hdr: dns.RR_Header{
+				Name:   q.Name,
+				Rrtype: dns.TypePTR,
+				Class:  dns.ClassINET,
+				Ttl:    atomic.LoadUint32(&m.TTL),
+			},
+			Ptr: m.serviceAddr,
+		}
+		return []dns.RR{rr}
+	default:
+		return nil
+	}
+}
+
+// serviceRecords is called when the query matches the service name
+func (m *MDNSService) serviceRecords(q dns.Question) []dns.RR {
+	switch q.Qtype {
+	case dns.TypeANY:
+		fallthrough
+	case dns.TypePTR:
+		// Build a PTR response for the service
+		rr := &dns.PTR{
+			Hdr: dns.RR_Header{
+				Name:   q.Name,
+				Rrtype: dns.TypePTR,
+				Class:  dns.ClassINET,
+				Ttl:    atomic.LoadUint32(&m.TTL),
+			},
+			Ptr: m.instanceAddr,
+		}
+		servRec := []dns.RR{rr}
+
+		// Get the instance records
+		instRecs := m.instanceRecords(dns.Question{
+			Name:  m.instanceAddr,
+			Qtype: dns.TypeANY,
+		})
+
+		// Return the service record with the instance records
+		return append(servRec, instRecs...)
+	default:
+		return nil
+	}
+}
+
+// serviceRecords is called when the query matches the instance name
+func (m *MDNSService) instanceRecords(q dns.Question) []dns.RR {
+	switch q.Qtype {
+	case dns.TypeANY:
+		// Get the SRV, which includes A and AAAA
+		recs := m.instanceRecords(dns.Question{
+			Name:  m.instanceAddr,
+			Qtype: dns.TypeSRV,
+		})
+
+		// Add the TXT record
+		recs = append(recs, m.instanceRecords(dns.Question{
+			Name:  m.instanceAddr,
+			Qtype: dns.TypeTXT,
+		})...)
+		return recs
+
+	case dns.TypeA:
+		var rr []dns.RR
+		for _, ip := range m.IPs {
+			if ip4 := ip.To4(); ip4 != nil {
+				rr = append(rr, &dns.A{
+					Hdr: dns.RR_Header{
+						Name:   m.HostName,
+						Rrtype: dns.TypeA,
+						Class:  dns.ClassINET,
+						Ttl:    atomic.LoadUint32(&m.TTL),
+					},
+					A: ip4,
+				})
+			}
+		}
+		return rr
+
+	case dns.TypeAAAA:
+		var rr []dns.RR
+		for _, ip := range m.IPs {
+			if ip.To4() != nil {
+				// TODO(reddaly): IPv4 addresses could be encoded in IPv6 format and
+				// putinto AAAA records, but the current logic puts ipv4-encodable
+				// addresses into the A records exclusively.  Perhaps this should be
+				// configurable?
+				continue
+			}
+
+			if ip16 := ip.To16(); ip16 != nil {
+				rr = append(rr, &dns.AAAA{
+					Hdr: dns.RR_Header{
+						Name:   m.HostName,
+						Rrtype: dns.TypeAAAA,
+						Class:  dns.ClassINET,
+						Ttl:    atomic.LoadUint32(&m.TTL),
+					},
+					AAAA: ip16,
+				})
+			}
+		}
+		return rr
+
+	case dns.TypeSRV:
+		// Create the SRV Record
+		srv := &dns.SRV{
+			Hdr: dns.RR_Header{
+				Name:   q.Name,
+				Rrtype: dns.TypeSRV,
+				Class:  dns.ClassINET,
+				Ttl:    atomic.LoadUint32(&m.TTL),
+			},
+			Priority: 10,
+			Weight:   1,
+			Port:     uint16(m.Port),
+			Target:   m.HostName,
+		}
+		recs := []dns.RR{srv}
+
+		// Add the A record
+		recs = append(recs, m.instanceRecords(dns.Question{
+			Name:  m.instanceAddr,
+			Qtype: dns.TypeA,
+		})...)
+
+		// Add the AAAA record
+		recs = append(recs, m.instanceRecords(dns.Question{
+			Name:  m.instanceAddr,
+			Qtype: dns.TypeAAAA,
+		})...)
+		return recs
+
+	case dns.TypeTXT:
+		txt := &dns.TXT{
+			Hdr: dns.RR_Header{
+				Name:   q.Name,
+				Rrtype: dns.TypeTXT,
+				Class:  dns.ClassINET,
+				Ttl:    atomic.LoadUint32(&m.TTL),
+			},
+			Txt: m.TXT,
+		}
+		return []dns.RR{txt}
+	}
+	return nil
+}
--- a/util/zone_test.go
+++ b/util/zone_test.go
@@ -0,0 +1,277 @@
+// +build ignore
+
+package mdns
+
+import (
+	"bytes"
+	"net"
+	"reflect"
+	"testing"
+
+	"github.com/miekg/dns"
+)
+
+func makeService(t *testing.T) *MDNSService {
+	return makeServiceWithServiceName(t, "_http._tcp")
+}
+
+func makeServiceWithServiceName(t *testing.T, service string) *MDNSService {
+	m, err := NewMDNSService(
+		"hostname",
+		service,
+		"local.",
+		"testhost.",
+		80, // port
+		[]net.IP{net.IP([]byte{192, 168, 0, 42}), net.ParseIP("2620:0:1000:1900:b0c2:d0b2:c411:18bc")},
+		[]string{"Local web server"}) // TXT
+
+	if err != nil {
+		t.Fatalf("err: %v", err)
+	}
+
+	return m
+}
+
+func TestNewMDNSService_BadParams(t *testing.T) {
+	for _, test := range []struct {
+		testName string
+		hostName string
+		domain   string
+	}{
+		{
+			"NewMDNSService should fail when passed hostName that is not a legal fully-qualified domain name",
+			"hostname", // not legal FQDN - should be "hostname." or "hostname.local.", etc.
+			"local.",   // legal
+		},
+		{
+			"NewMDNSService should fail when passed domain that is not a legal fully-qualified domain name",
+			"hostname.", // legal
+			"local",     // should be "local."
+		},
+	} {
+		_, err := NewMDNSService(
+			"instance name",
+			"_http._tcp",
+			test.domain,
+			test.hostName,
+			80, // port
+			[]net.IP{net.IP([]byte{192, 168, 0, 42})},
+			[]string{"Local web server"}) // TXT
+		if err == nil {
+			t.Fatalf("%s: error expected, but got none", test.testName)
+		}
+	}
+}
+
+func TestMDNSService_BadAddr(t *testing.T) {
+	s := makeService(t)
+	q := dns.Question{
+		Name:  "random",
+		Qtype: dns.TypeANY,
+	}
+	recs := s.Records(q)
+	if len(recs) != 0 {
+		t.Fatalf("bad: %v", recs)
+	}
+}
+
+func TestMDNSService_ServiceAddr(t *testing.T) {
+	s := makeService(t)
+	q := dns.Question{
+		Name:  "_http._tcp.local.",
+		Qtype: dns.TypeANY,
+	}
+	recs := s.Records(q)
+	if got, want := len(recs), 5; got != want {
+		t.Fatalf("got %d records, want %d: %v", got, want, recs)
+	}
+
+	if ptr, ok := recs[0].(*dns.PTR); !ok {
+		t.Errorf("recs[0] should be PTR record, got: %v, all records: %v", recs[0], recs)
+	} else if got, want := ptr.Ptr, "hostname._http._tcp.local."; got != want {
+		t.Fatalf("bad PTR record %v: got %v, want %v", ptr, got, want)
+	}
+
+	if _, ok := recs[1].(*dns.SRV); !ok {
+		t.Errorf("recs[1] should be SRV record, got: %v, all reccords: %v", recs[1], recs)
+	}
+	if _, ok := recs[2].(*dns.A); !ok {
+		t.Errorf("recs[2] should be A record, got: %v, all records: %v", recs[2], recs)
+	}
+	if _, ok := recs[3].(*dns.AAAA); !ok {
+		t.Errorf("recs[3] should be AAAA record, got: %v, all records: %v", recs[3], recs)
+	}
+	if _, ok := recs[4].(*dns.TXT); !ok {
+		t.Errorf("recs[4] should be TXT record, got: %v, all records: %v", recs[4], recs)
+	}
+
+	q.Qtype = dns.TypePTR
+	if recs2 := s.Records(q); !reflect.DeepEqual(recs, recs2) {
+		t.Fatalf("PTR question should return same result as ANY question: ANY => %v, PTR => %v", recs, recs2)
+	}
+}
+
+func TestMDNSService_InstanceAddr_ANY(t *testing.T) {
+	s := makeService(t)
+	q := dns.Question{
+		Name:  "hostname._http._tcp.local.",
+		Qtype: dns.TypeANY,
+	}
+	recs := s.Records(q)
+	if len(recs) != 4 {
+		t.Fatalf("bad: %v", recs)
+	}
+	if _, ok := recs[0].(*dns.SRV); !ok {
+		t.Fatalf("bad: %v", recs[0])
+	}
+	if _, ok := recs[1].(*dns.A); !ok {
+		t.Fatalf("bad: %v", recs[1])
+	}
+	if _, ok := recs[2].(*dns.AAAA); !ok {
+		t.Fatalf("bad: %v", recs[2])
+	}
+	if _, ok := recs[3].(*dns.TXT); !ok {
+		t.Fatalf("bad: %v", recs[3])
+	}
+}
+
+func TestMDNSService_InstanceAddr_SRV(t *testing.T) {
+	s := makeService(t)
+	q := dns.Question{
+		Name:  "hostname._http._tcp.local.",
+		Qtype: dns.TypeSRV,
+	}
+	recs := s.Records(q)
+	if len(recs) != 3 {
+		t.Fatalf("bad: %v", recs)
+	}
+	srv, ok := recs[0].(*dns.SRV)
+	if !ok {
+		t.Fatalf("bad: %v", recs[0])
+	}
+	if _, ok := recs[1].(*dns.A); !ok {
+		t.Fatalf("bad: %v", recs[1])
+	}
+	if _, ok := recs[2].(*dns.AAAA); !ok {
+		t.Fatalf("bad: %v", recs[2])
+	}
+
+	if srv.Port != uint16(s.Port) {
+		t.Fatalf("bad: %v", recs[0])
+	}
+}
+
+func TestMDNSService_InstanceAddr_A(t *testing.T) {
+	s := makeService(t)
+	q := dns.Question{
+		Name:  "hostname._http._tcp.local.",
+		Qtype: dns.TypeA,
+	}
+	recs := s.Records(q)
+	if len(recs) != 1 {
+		t.Fatalf("bad: %v", recs)
+	}
+	a, ok := recs[0].(*dns.A)
+	if !ok {
+		t.Fatalf("bad: %v", recs[0])
+	}
+	if !bytes.Equal(a.A, []byte{192, 168, 0, 42}) {
+		t.Fatalf("bad: %v", recs[0])
+	}
+}
+
+func TestMDNSService_InstanceAddr_AAAA(t *testing.T) {
+	s := makeService(t)
+	q := dns.Question{
+		Name:  "hostname._http._tcp.local.",
+		Qtype: dns.TypeAAAA,
+	}
+	recs := s.Records(q)
+	if len(recs) != 1 {
+		t.Fatalf("bad: %v", recs)
+	}
+	a4, ok := recs[0].(*dns.AAAA)
+	if !ok {
+		t.Fatalf("bad: %v", recs[0])
+	}
+	ip6 := net.ParseIP("2620:0:1000:1900:b0c2:d0b2:c411:18bc")
+	if got := len(ip6); got != net.IPv6len {
+		t.Fatalf("test IP failed to parse (len = %d, want %d)", got, net.IPv6len)
+	}
+	if !bytes.Equal(a4.AAAA, ip6) {
+		t.Fatalf("bad: %v", recs[0])
+	}
+}
+
+func TestMDNSService_InstanceAddr_TXT(t *testing.T) {
+	s := makeService(t)
+	q := dns.Question{
+		Name:  "hostname._http._tcp.local.",
+		Qtype: dns.TypeTXT,
+	}
+	recs := s.Records(q)
+	if len(recs) != 1 {
+		t.Fatalf("bad: %v", recs)
+	}
+	txt, ok := recs[0].(*dns.TXT)
+	if !ok {
+		t.Fatalf("bad: %v", recs[0])
+	}
+	if got, want := txt.Txt, s.TXT; !reflect.DeepEqual(got, want) {
+		t.Fatalf("TXT record mismatch for %v: got %v, want %v", recs[0], got, want)
+	}
+}
+
+func TestMDNSService_HostNameQuery(t *testing.T) {
+	s := makeService(t)
+	for _, test := range []struct {
+		q    dns.Question
+		want []dns.RR
+	}{
+		{
+			dns.Question{Name: "testhost.", Qtype: dns.TypeA},
+			[]dns.RR{&dns.A{
+				Hdr: dns.RR_Header{
+					Name:   "testhost.",
+					Rrtype: dns.TypeA,
+					Class:  dns.ClassINET,
+					Ttl:    120,
+				},
+				A: net.IP([]byte{192, 168, 0, 42}),
+			}},
+		},
+		{
+			dns.Question{Name: "testhost.", Qtype: dns.TypeAAAA},
+			[]dns.RR{&dns.AAAA{
+				Hdr: dns.RR_Header{
+					Name:   "testhost.",
+					Rrtype: dns.TypeAAAA,
+					Class:  dns.ClassINET,
+					Ttl:    120,
+				},
+				AAAA: net.ParseIP("2620:0:1000:1900:b0c2:d0b2:c411:18bc"),
+			}},
+		},
+	} {
+		if got := s.Records(test.q); !reflect.DeepEqual(got, test.want) {
+			t.Errorf("hostname query failed: s.Records(%v) = %v, want %v", test.q, got, test.want)
+		}
+	}
+}
+
+func TestMDNSService_serviceEnum_PTR(t *testing.T) {
+	s := makeService(t)
+	q := dns.Question{
+		Name:  "_services._dns-sd._udp.local.",
+		Qtype: dns.TypePTR,
+	}
+	recs := s.Records(q)
+	if len(recs) != 1 {
+		t.Fatalf("bad: %v", recs)
+	}
+	if ptr, ok := recs[0].(*dns.PTR); !ok {
+		t.Errorf("recs[0] should be PTR record, got: %v, all records: %v", recs[0], recs)
+	} else if got, want := ptr.Ptr, "_http._tcp.local."; got != want {
+		t.Fatalf("bad PTR record %v: got %v, want %v", ptr, got, want)
+	}
+}
Author	SHA1	Message	Date
Vasiliy Tolstov	fd601c65fa	update workflows Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2022-03-05 19:09:49 +03:00
dependabot[bot]	c9e824098f	Bump golangci/golangci-lint-action from 2 to 3 (#32 ) Bumps [golangci/golangci-lint-action](https://github.com/golangci/golangci-lint-action) from 2 to 3. - [Release notes](https://github.com/golangci/golangci-lint-action/releases) - [Commits](https://github.com/golangci/golangci-lint-action/compare/v2...v3) --- updated-dependencies: - dependency-name: golangci/golangci-lint-action dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-02-25 13:09:59 +03:00
dependabot[bot]	6b830b2797	Bump github.com/miekg/dns from 1.1.45 to 1.1.46 (#29 ) Bumps [github.com/miekg/dns](https://github.com/miekg/dns) from 1.1.45 to 1.1.46. - [Release notes](https://github.com/miekg/dns/releases) - [Changelog](https://github.com/miekg/dns/blob/master/Makefile.release) - [Commits](https://github.com/miekg/dns/compare/v1.1.45...v1.1.46) --- updated-dependencies: - dependency-name: github.com/miekg/dns dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-02-25 09:57:33 +03:00
dependabot[bot]	b824152d61	Bump dependabot/fetch-metadata from 1.1.1 to 1.2.1 (#31 ) Bumps [dependabot/fetch-metadata](https://github.com/dependabot/fetch-metadata) from 1.1.1 to 1.2.1. - [Release notes](https://github.com/dependabot/fetch-metadata/releases) - [Commits](https://github.com/dependabot/fetch-metadata/compare/v1.1.1...v1.2.1) --- updated-dependencies: - dependency-name: dependabot/fetch-metadata dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-02-25 09:44:07 +03:00
Vasiliy Tolstov	566dbd8050	Merge pull request #28 from unistack-org/dependabot/go_modules/go.unistack.org/micro/v3-3.8.21 Bump go.unistack.org/micro/v3 from 3.8.20 to 3.8.21	2022-01-31 12:21:37 +03:00
dependabot[bot]	b493986298	Bump go.unistack.org/micro/v3 from 3.8.20 to 3.8.21 Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.20 to 3.8.21. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.8.20...v3.8.21) --- updated-dependencies: - dependency-name: go.unistack.org/micro/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-01-31 09:20:52 +00:00
Vasiliy Tolstov	879b9ebbff	Merge pull request #27 from unistack-org/dependabot/go_modules/go.unistack.org/micro/v3-3.8.20 Bump go.unistack.org/micro/v3 from 3.8.19 to 3.8.20	2022-01-26 12:16:49 +03:00
dependabot[bot]	ee351a8a26	Bump go.unistack.org/micro/v3 from 3.8.19 to 3.8.20 Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.19 to 3.8.20. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.8.19...v3.8.20) --- updated-dependencies: - dependency-name: go.unistack.org/micro/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-01-26 09:16:01 +00:00
Vasiliy Tolstov	8d9bb86f36	Merge pull request #26 from unistack-org/dependabot/go_modules/go.unistack.org/micro/v3-3.8.19 Bump go.unistack.org/micro/v3 from 3.8.18 to 3.8.19	2022-01-25 12:19:23 +03:00
dependabot[bot]	1e999e87ea	Bump go.unistack.org/micro/v3 from 3.8.18 to 3.8.19 Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.18 to 3.8.19. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.8.18...v3.8.19) --- updated-dependencies: - dependency-name: go.unistack.org/micro/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-01-25 09:18:38 +00:00
Vasiliy Tolstov	b90359727f	Merge pull request #25 from unistack-org/dependabot/go_modules/go.unistack.org/micro/v3-3.8.18 Bump go.unistack.org/micro/v3 from 3.8.16 to 3.8.18	2022-01-24 12:26:15 +03:00
dependabot[bot]	d0e5ed0582	Bump go.unistack.org/micro/v3 from 3.8.16 to 3.8.18 Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.16 to 3.8.18. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.8.16...v3.8.18) --- updated-dependencies: - dependency-name: go.unistack.org/micro/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-01-24 09:25:24 +00:00
Vasiliy Tolstov	384269dc01	Merge pull request #24 from unistack-org/dependabot/go_modules/go.unistack.org/micro/v3-3.8.16 Bump go.unistack.org/micro/v3 from 3.8.15 to 3.8.16	2022-01-21 12:20:29 +03:00
dependabot[bot]	e2877ea8eb	Bump go.unistack.org/micro/v3 from 3.8.15 to 3.8.16 Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.15 to 3.8.16. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.8.15...v3.8.16) --- updated-dependencies: - dependency-name: go.unistack.org/micro/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-01-21 09:19:50 +00:00
Vasiliy Tolstov	cf3db7a5ba	Merge pull request #23 from unistack-org/dependabot/go_modules/go.unistack.org/micro/v3-3.8.15 Bump go.unistack.org/micro/v3 from 3.8.14 to 3.8.15	2022-01-20 12:19:06 +03:00
dependabot[bot]	f24207a2dd	Bump go.unistack.org/micro/v3 from 3.8.14 to 3.8.15 Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.14 to 3.8.15. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.8.14...v3.8.15) --- updated-dependencies: - dependency-name: go.unistack.org/micro/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-01-20 09:18:16 +00:00
dependabot[bot]	d63e64bc60	Bump github.com/miekg/dns from 1.1.43 to 1.1.45 (#20 ) Bumps [github.com/miekg/dns](https://github.com/miekg/dns) from 1.1.43 to 1.1.45. - [Release notes](https://github.com/miekg/dns/releases) - [Changelog](https://github.com/miekg/dns/blob/master/Makefile.release) - [Commits](https://github.com/miekg/dns/compare/v1.1.43...v1.1.45) --- updated-dependencies: - dependency-name: github.com/miekg/dns dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2022-01-12 15:31:58 +03:00
Vasiliy Tolstov	62b0cd3a11	Merge pull request #22 from unistack-org/dependabot/go_modules/go.unistack.org/micro/v3-3.8.14 Bump go.unistack.org/micro/v3 from 3.8.11 to 3.8.14	2022-01-11 12:22:49 +03:00
dependabot[bot]	ef71f1b16c	Bump go.unistack.org/micro/v3 from 3.8.11 to 3.8.14 Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.11 to 3.8.14. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.8.11...v3.8.14) --- updated-dependencies: - dependency-name: go.unistack.org/micro/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-01-11 09:22:04 +00:00
Vasiliy Tolstov	4d839a6029	Merge pull request #17 from unistack-org/dependabot/go_modules/go.unistack.org/micro/v3-3.8.11 Bump go.unistack.org/micro/v3 from 3.8.10 to 3.8.11	2021-11-24 12:28:44 +03:00
dependabot[bot]	c5c27e8c86	Bump go.unistack.org/micro/v3 from 3.8.10 to 3.8.11 Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.10 to 3.8.11. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.8.10...v3.8.11) --- updated-dependencies: - dependency-name: go.unistack.org/micro/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2021-11-24 09:27:59 +00:00
Vasiliy Tolstov	323da3248f	Merge pull request #16 from unistack-org/dependabot/go_modules/go.unistack.org/micro/v3-3.8.10 Bump go.unistack.org/micro/v3 from 3.8.7 to 3.8.10	2021-11-19 12:21:06 +03:00
dependabot[bot]	60a6cbc817	Bump go.unistack.org/micro/v3 from 3.8.7 to 3.8.10 Bumps [go.unistack.org/micro/v3](https://github.com/unistack-org/micro) from 3.8.7 to 3.8.10. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.8.7...v3.8.10) --- updated-dependencies: - dependency-name: go.unistack.org/micro/v3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2021-11-19 09:20:14 +00:00
Vasiliy Tolstov	009e190776	fix tests Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-10-27 23:58:28 +03:00
Vasiliy Tolstov	ca7565c7c8	update import paths Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-10-27 23:49:50 +03:00
Vasiliy Tolstov	3ba598448b	update workflow Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-09-21 21:47:49 +03:00
dependabot[bot]	ebb262dfee	Bump github.com/google/uuid from 1.2.0 to 1.3.0 (#6 ) Bumps [github.com/google/uuid](https://github.com/google/uuid) from 1.2.0 to 1.3.0. - [Release notes](https://github.com/google/uuid/releases) - [Commits](https://github.com/google/uuid/compare/v1.2.0...v1.3.0) --- updated-dependencies: - dependency-name: github.com/google/uuid dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2021-09-17 08:43:46 +03:00
Vasiliy Tolstov	4143fc71e8	update workflows Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-09-17 07:49:16 +03:00
github-actions[bot]	082d91815a	Merge pull request #8 from unistack-org/dependabot/go_modules/github.com/miekg/dns-1.1.43 Bump github.com/miekg/dns from 1.1.42 to 1.1.43	2021-09-16 09:22:39 +00:00
dependabot[bot]	93d376614c	Bump github.com/miekg/dns from 1.1.42 to 1.1.43 Bumps [github.com/miekg/dns](https://github.com/miekg/dns) from 1.1.42 to 1.1.43. - [Release notes](https://github.com/miekg/dns/releases) - [Changelog](https://github.com/miekg/dns/blob/master/Makefile.release) - [Commits](https://github.com/miekg/dns/compare/v1.1.42...v1.1.43) --- updated-dependencies: - dependency-name: github.com/miekg/dns dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2021-09-16 09:20:22 +00:00
github-actions[bot]	e4c92e7b6b	Merge pull request #9 from unistack-org/dependabot/go_modules/github.com/unistack-org/micro/v3-3.7.1 Bump github.com/unistack-org/micro/v3 from 3.3.19 to 3.7.1	2021-09-16 09:19:17 +00:00
dependabot[bot]	56dbe10fb1	Bump github.com/unistack-org/micro/v3 from 3.3.19 to 3.7.1 Bumps [github.com/unistack-org/micro/v3](https://github.com/unistack-org/micro) from 3.3.19 to 3.7.1. - [Release notes](https://github.com/unistack-org/micro/releases) - [Commits](https://github.com/unistack-org/micro/compare/v3.3.19...v3.7.1) --- updated-dependencies: - dependency-name: github.com/unistack-org/micro/v3 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2021-09-16 09:17:10 +00:00
Vasiliy Tolstov	8122259fe8	enable automerge Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-09-16 11:07:51 +03:00
Vasiliy Tolstov	da11381fd1	add github stuff Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-09-06 15:16:26 +03:00
Vasiliy Tolstov	fe2d6931d7	add github stuff Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-09-06 15:04:22 +03:00
Vasiliy Tolstov	4155345f57	update for latest micro Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-06-05 17:16:58 +03:00
Vasiliy Tolstov	21928ee740	fix test Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-02-20 14:23:07 +03:00
Vasiliy Tolstov	9c94a3e6a8	use own fork Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2021-02-19 23:12:48 +03:00