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initial import from go-micro

Browse Source 
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
Василий Толстов 2020-08-28 12:20:52 +03:00
commit b7c0506538
14 changed files with 1861 additions and 0 deletions
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.github/ISSUE_TEMPLATE/bug_report.md vendored Normal file
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---
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
```

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.github/ISSUE_TEMPLATE/feature-request---enhancement.md vendored Normal file
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---
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.

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---
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

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.github/PULL_REQUEST_TEMPLATE.md vendored Normal file
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## 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**

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.github/stale.sh vendored Executable file
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#!/bin/bash -ex
export PATH=$PATH:$(pwd)/bin
export GO111MODULE=on
export GOBIN=$(pwd)/bin
#go get github.com/rvflash/goup@v0.4.1
#goup -v ./...
#go get github.com/psampaz/go-mod-outdated@v0.6.0
go list -u -m -mod=mod -json all | go-mod-outdated -update -direct -ci || true
#go list -u -m -json all | go-mod-outdated -update

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.github/workflows/build.yml vendored Normal file
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name: build
on:
push:
branches:
- master
jobs:
test:
name: test
runs-on: ubuntu-latest
steps:
- name: setup
uses: actions/setup-go@v1
with:
go-version: 1.15
- name: checkout
uses: actions/checkout@v2
- 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@v2
- name: lint
uses: golangci/golangci-lint-action@v1
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

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.github/workflows/pr.yml vendored Normal file
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name: prbuild
on:
pull_request:
branches:
- master
jobs:
test:
name: test
runs-on: ubuntu-latest
steps:
- name: setup
uses: actions/setup-go@v1
with:
go-version: 1.15
- name: checkout
uses: actions/checkout@v2
- 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@v2
- name: lint
uses: golangci/golangci-lint-action@v1
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

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go.mod Normal file
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module github.com/unistack-org/micro-router-registry
go 1.15
require (
github.com/google/uuid v1.1.1
github.com/unistack-org/micro/v3 v3.0.0-20200828085518-2c136b005edd
)

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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=
cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
contrib.go.opencensus.io/exporter/ocagent v0.4.12/go.mod h1:450APlNTSR6FrvC3CTRqYosuDstRB9un7SOx2k/9ckA=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/Azure/azure-sdk-for-go v32.4.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
github.com/Azure/go-autorest/autorest v0.1.0/go.mod h1:AKyIcETwSUFxIcs/Wnq/C+kwCtlEYGUVd7FPNb2slmg=
github.com/Azure/go-autorest/autorest v0.5.0/go.mod h1:9HLKlQjVBH6U3oDfsXOeVc56THsLPw1L03yban4xThw=
github.com/Azure/go-autorest/autorest/adal v0.1.0/go.mod h1:MeS4XhScH55IST095THyTxElntu7WqB7pNbZo8Q5G3E=
github.com/Azure/go-autorest/autorest/adal v0.2.0/go.mod h1:MeS4XhScH55IST095THyTxElntu7WqB7pNbZo8Q5G3E=
github.com/Azure/go-autorest/autorest/azure/auth v0.1.0/go.mod h1:Gf7/i2FUpyb/sGBLIFxTBzrNzBo7aPXXE3ZVeDRwdpM=
github.com/Azure/go-autorest/autorest/azure/cli v0.1.0/go.mod h1:Dk8CUAt/b/PzkfeRsWzVG9Yj3ps8mS8ECztu43rdU8U=
github.com/Azure/go-autorest/autorest/date v0.1.0/go.mod h1:plvfp3oPSKwf2DNjlBjWF/7vwR+cUD/ELuzDCXwHUVA=
github.com/Azure/go-autorest/autorest/mocks v0.1.0/go.mod h1:OTyCOPRA2IgIlWxVYxBee2F5Gr4kF2zd2J5cFRaIDN0=
github.com/Azure/go-autorest/autorest/to v0.2.0/go.mod h1:GunWKJp1AEqgMaGLV+iocmRAJWqST1wQYhyyjXJ3SJc=
github.com/Azure/go-autorest/autorest/validation v0.1.0/go.mod h1:Ha3z/SqBeaalWQvokg3NZAlQTalVMtOIAs1aGK7G6u8=
github.com/Azure/go-autorest/logger v0.1.0/go.mod h1:oExouG+K6PryycPJfVSxi/koC6LSNgds39diKLz7Vrc=
github.com/Azure/go-autorest/tracing v0.1.0/go.mod h1:ROEEAFwXycQw7Sn3DXNtEedEvdeRAgDr0izn4z5Ij88=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
github.com/OpenDNS/vegadns2client v0.0.0-20180418235048-a3fa4a771d87/go.mod h1:iGLljf5n9GjT6kc0HBvyI1nOKnGQbNB66VzSNbK5iks=
github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
github.com/akamai/AkamaiOPEN-edgegrid-golang v0.9.0/go.mod h1:zpDJeKyp9ScW4NNrbdr+Eyxvry3ilGPewKoXw3XGN1k=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/aliyun/alibaba-cloud-sdk-go v0.0.0-20190808125512-07798873deee/go.mod h1:myCDvQSzCW+wB1WAlocEru4wMGJxy+vlxHdhegi1CDQ=
github.com/aliyun/aliyun-oss-go-sdk v0.0.0-20190307165228-86c17b95fcd5/go.mod h1:T/Aws4fEfogEE9v+HPhhw+CntffsBHJ8nXQCwKr0/g8=
github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
github.com/aws/aws-sdk-go v1.23.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
github.com/baiyubin/aliyun-sts-go-sdk v0.0.0-20180326062324-cfa1a18b161f/go.mod h1:AuiFmCCPBSrqvVMvuqFuk0qogytodnVFVSN5CeJB8Gc=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/bradfitz/gomemcache v0.0.0-20190913173617-a41fca850d0b/go.mod h1:H0wQNHz2YrLsuXOZozoeDmnHXkNCRmMW0gwFWDfEZDA=
github.com/caddyserver/certmagic v0.10.6/go.mod h1:Y8jcUBctgk/IhpAzlHKfimZNyXCkfGgRTC0orl8gROQ=
github.com/cenkalti/backoff/v4 v4.0.0/go.mod h1:eEew/i+1Q6OrCDZh3WiXYv3+nJwBASZ8Bog/87DQnVg=
github.com/census-instrumentation/opencensus-proto v0.2.0/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cloudflare/cloudflare-go v0.10.2/go.mod h1:qhVI5MKwBGhdNU89ZRz2plgYutcJ5PCekLxXn56w6SY=
github.com/cpu/goacmedns v0.0.1/go.mod h1:sesf/pNnCYwUevQEQfEwY0Y3DydlQWSGZbaMElOWxok=
github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
github.com/dimchansky/utfbom v1.1.0/go.mod h1:rO41eb7gLfo8SF1jd9F8HplJm1Fewwi4mQvIirEdv+8=
github.com/dnaeon/go-vcr v0.0.0-20180814043457-aafff18a5cc2/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
github.com/dnsimple/dnsimple-go v0.30.0/go.mod h1:O5TJ0/U6r7AfT8niYNlmohpLbCSG+c71tQlGr9SeGrg=
github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I=
github.com/ef-ds/deque v1.0.4-0.20190904040645-54cb57c252a1/go.mod h1:HvODWzv6Y6kBf3Ah2WzN1bHjDUezGLaAhwuWVwfpEJs=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/evanphx/json-patch/v5 v5.0.0/go.mod h1:G79N1coSVB93tBe7j6PhzjmR3/2VvlbKOFpnXhI9Bw4=
github.com/exoscale/egoscale v0.18.1/go.mod h1:Z7OOdzzTOz1Q1PjQXumlz9Wn/CddH0zSYdCF3rnBKXE=
github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-acme/lego/v3 v3.4.0/go.mod h1:xYbLDuxq3Hy4bMUT1t9JIuz6GWIWb3m5X+TeTHYaT7M=
github.com/go-cmd/cmd v1.0.5/go.mod h1:y8q8qlK5wQibcw63djSl/ntiHUHXHGdCkPk0j4QeW4s=
github.com/go-errors/errors v1.0.1/go.mod h1:f4zRHt4oKfwPJE5k8C9vpYG+aDHdBFUsgrm6/TyX73Q=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-ini/ini v1.44.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo=
github.com/gobwas/pool v0.2.1/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
github.com/gobwas/ws v1.0.3/go.mod h1:szmBTxLgaFppYjEmNtny/v3w89xOydFnnZMcgRRu/EM=
github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/goji/httpauth v0.0.0-20160601135302-2da839ab0f4d/go.mod h1:nnjvkQ9ptGaCkuDUx6wNykzzlUixGxvkme+H/lnzb+A=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
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github.com/uber-go/atomic v1.3.2/go.mod h1:/Ct5t2lcmbJ4OSe/waGBoaVvVqtO0bmtfVNex1PFV8g=
github.com/unistack-org/micro v1.18.0 h1:EbFiII0bKV0Xcua7o6J30MFmm4/g0Hv3ECOKzsUBihU=
github.com/unistack-org/micro-codec-bytes v0.0.0-20200827104921-3616a69473a6/go.mod h1:g5sOI8TWgGZiVHe8zoUPdtz7+0oLnqTnfBoai6Qb7jE=
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github.com/unistack-org/micro/v3 v3.0.0-20200828085518-2c136b005edd/go.mod h1:fMA60jjS3INPT4AwYm2+jTHVuWEkVYvaO/7wgEpylTk=
github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
github.com/vultr/govultr v0.1.4/go.mod h1:9H008Uxr/C4vFNGLqKx232C206GL0PBHzOP0809bGNA=
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golang.org/x/crypto v0.0.0-20190418165655-df01cb2cc480/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
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golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE=
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golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
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golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/time v0.0.0-20190921001708-c4c64cad1fd0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
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445
registry.go Normal file
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@ -0,0 +1,445 @@
package registry
import (
"fmt"
"strings"
"sync"
"time"
"github.com/unistack-org/micro/v3/logger"
"github.com/unistack-org/micro/v3/registry"
"github.com/unistack-org/micro/v3/router"
)
var (
// RefreshInterval is the time at which we completely refresh the table
RefreshInterval = time.Second * 120
// PruneInterval is how often we prune the routing table
PruneInterval = time.Second * 10
)
// rtr implements router interface
type rtr struct {
sync.RWMutex
running bool
table *table
options router.Options
exit chan bool
initChan chan bool
}
// NewRouter creates new router and returns it
func NewRouter(opts ...router.Option) (router.Router, error) {
// get default options
options := router.DefaultOptions()
// apply requested options
for _, o := range opts {
o(&options)
}
// construct the router
r := &rtr{
options: options,
initChan: make(chan bool),
}
if options.Registry == nil {
return nil, fmt.Errorf("registry not set")
}
// create the new table, passing the fetchRoute method in as a fallback if
// the table doesn't contain the result for a query.
r.table = newTable(r.lookup)
// start the router
r.start()
return r, nil
}
// Init initializes router with given options
func (r *rtr) Init(opts ...router.Option) error {
r.Lock()
for _, o := range opts {
o(&r.options)
}
r.Unlock()
// push a message to the init chan so the watchers
// can reset in the case the registry was changed
go func() {
r.initChan <- true
}()
return nil
}
// Options returns router options
func (r *rtr) Options() router.Options {
r.RLock()
defer r.RUnlock()
options := r.options
return options
}
// Table returns routing table
func (r *rtr) Table() router.Table {
r.Lock()
defer r.Unlock()
return r.table
}
func getDomain(srv *registry.Service) string {
// check the service metadata for domain
// TODO: domain as Domain field in registry?
if srv.Metadata != nil && len(srv.Metadata["domain"]) > 0 {
return srv.Metadata["domain"]
} else if len(srv.Nodes) > 0 && srv.Nodes[0].Metadata != nil {
return srv.Nodes[0].Metadata["domain"]
}
// otherwise return wildcard
// TODO: return GlobalDomain or PublicDomain
return registry.DefaultDomain
}
// manageRoute applies action on a given route
func (r *rtr) manageRoute(route router.Route, action string) error {
switch action {
case "create":
if err := r.table.Create(route); err != nil && err != router.ErrDuplicateRoute {
return fmt.Errorf("failed adding route for service %s: %s", route.Service, err)
}
case "delete":
if err := r.table.Delete(route); err != nil && err != router.ErrRouteNotFound {
return fmt.Errorf("failed deleting route for service %s: %s", route.Service, err)
}
case "update":
if err := r.table.Update(route); err != nil {
return fmt.Errorf("failed updating route for service %s: %s", route.Service, err)
}
default:
return fmt.Errorf("failed to manage route for service %s: unknown action %s", route.Service, action)
}
return nil
}
// createRoutes turns a service into a list routes basically converting nodes to routes
func (r *rtr) createRoutes(service *registry.Service, network string) []router.Route {
routes := make([]router.Route, 0, len(service.Nodes))
for _, node := range service.Nodes {
routes = append(routes, router.Route{
Service: service.Name,
Address: node.Address,
Gateway: "",
Network: network,
Router: r.options.Id,
Link: router.DefaultLink,
Metric: router.DefaultLocalMetric,
Metadata: node.Metadata,
})
}
return routes
}
// manageServiceRoutes applies action to all routes of the service.
// It returns error of the action fails with error.
func (r *rtr) manageRoutes(service *registry.Service, action, network string) error {
// action is the routing table action
action = strings.ToLower(action)
// create a set of routes from the service
routes := r.createRoutes(service, network)
// if its a delete action and there's no nodes
// it means we need to wipe out all the routes
// for that service
if action == "delete" && len(routes) == 0 {
// delete the service entirely
r.table.deleteService(service.Name, network)
return nil
}
// create the routes in the table
for _, route := range routes {
logger.Tracef("Creating route %v domain: %v", route, network)
if err := r.manageRoute(route, action); err != nil {
return err
}
}
return nil
}
// manageRegistryRoutes applies action to all routes of each service found in the registry.
// It returns error if either the services failed to be listed or the routing table action fails.
func (r *rtr) loadRoutes(reg registry.Registry) error {
services, err := reg.ListServices(registry.ListDomain(registry.WildcardDomain))
if err != nil {
return fmt.Errorf("failed listing services: %v", err)
}
// add each service node as a separate route
for _, service := range services {
// get the services domain from metadata. Fallback to wildcard.
domain := getDomain(service)
// create the routes
routes := r.createRoutes(service, domain)
// if the routes exist save them
if len(routes) > 0 {
logger.Tracef("Creating routes for service %v domain: %v", service, domain)
for _, rt := range routes {
err := r.table.Create(rt)
// update the route to prevent it from expiring
if err == router.ErrDuplicateRoute {
err = r.table.Update(rt)
}
if err != nil {
logger.Errorf("Error creating route for service %v in domain %v: %v", service, domain, err)
}
}
continue
}
// otherwise get all the service info
// get the service to retrieve all its info
srvs, err := reg.GetService(service.Name, registry.GetDomain(domain))
if err != nil {
logger.Tracef("Failed to get service %s domain: %s", service.Name, domain)
continue
}
// manage the routes for all returned services
for _, srv := range srvs {
routes := r.createRoutes(srv, domain)
if len(routes) > 0 {
logger.Tracef("Creating routes for service %v domain: %v", srv, domain)
for _, rt := range routes {
err := r.table.Create(rt)
// update the route to prevent it from expiring
if err == router.ErrDuplicateRoute {
err = r.table.Update(rt)
}
if err != nil {
logger.Errorf("Error creating route for service %v in domain %v: %v", service, domain, err)
}
}
}
}
}
return nil
}
// lookup retrieves all the routes for a given service and creates them in the routing table
func (r *rtr) lookup(service string) ([]router.Route, error) {
logger.Tracef("Fetching route for %s domain: %v", service, registry.WildcardDomain)
services, err := r.options.Registry.GetService(service, registry.GetDomain(registry.WildcardDomain))
if err == registry.ErrNotFound {
logger.Tracef("Failed to find route for %s", service)
return nil, router.ErrRouteNotFound
} else if err != nil {
logger.Tracef("Failed to find route for %s: %v", service, err)
return nil, fmt.Errorf("failed getting services: %v", err)
}
var routes []router.Route
for _, srv := range services {
domain := getDomain(srv)
// TODO: should we continue to send the event indicating we created a route?
// lookup is only called in the query path so probably not
routes = append(routes, r.createRoutes(srv, domain)...)
}
return routes, nil
}
// watchRegistry watches registry and updates routing table based on the received events.
// It returns error if either the registry watcher fails with error or if the routing table update fails.
func (r *rtr) watchRegistry(w registry.Watcher) error {
exit := make(chan bool)
defer func() {
close(exit)
}()
go func() {
defer w.Stop()
select {
case <-exit:
return
case <-r.initChan:
return
case <-r.exit:
return
}
}()
for {
// get the next service
res, err := w.Next()
if err != nil {
if err != registry.ErrWatcherStopped {
return err
}
break
}
// don't process nil entries
if res.Service == nil {
logger.Trace("Received a nil service")
continue
}
logger.Tracef("Router dealing with next route %s %+v\n", res.Action, res.Service)
// get the services domain from metadata. Fallback to wildcard.
domain := getDomain(res.Service)
// create/update or delete the route
if err := r.manageRoutes(res.Service, res.Action, domain); err != nil {
return err
}
}
return nil
}
// start the router. Should be called under lock.
func (r *rtr) start() error {
if r.running {
return nil
}
if r.options.Precache {
// add all local service routes into the routing table
if err := r.loadRoutes(r.options.Registry); err != nil {
return fmt.Errorf("failed loading registry routes: %s", err)
}
}
// add default gateway into routing table
if r.options.Gateway != "" {
// note, the only non-default value is the gateway
route := router.Route{
Service: "*",
Address: "*",
Gateway: r.options.Gateway,
Network: "*",
Router: r.options.Id,
Link: router.DefaultLink,
Metric: router.DefaultLocalMetric,
}
if err := r.table.Create(route); err != nil {
return fmt.Errorf("failed adding default gateway route: %s", err)
}
}
// create error and exit channels
r.exit = make(chan bool)
// periodically refresh all the routes
go func() {
t1 := time.NewTicker(RefreshInterval)
defer t1.Stop()
t2 := time.NewTicker(PruneInterval)
defer t2.Stop()
for {
select {
case <-r.exit:
return
case <-t2.C:
r.table.pruneRoutes(RefreshInterval)
case <-t1.C:
if err := r.loadRoutes(r.options.Registry); err != nil {
logger.Debugf("failed refreshing registry routes: %s", err)
}
}
}
}()
go func() {
for {
select {
case <-r.exit:
return
default:
logger.Tracef("Router starting registry watch")
w, err := r.options.Registry.Watch(registry.WatchDomain(registry.WildcardDomain))
if err != nil {
if logger.V(logger.DebugLevel, logger.DefaultLogger) {
logger.Debugf("failed creating registry watcher: %v", err)
}
time.Sleep(time.Second)
continue
}
// watchRegistry calls stop when it's done
if err := r.watchRegistry(w); err != nil {
if logger.V(logger.DebugLevel, logger.DefaultLogger) {
logger.Debugf("Error watching the registry: %v", err)
}
time.Sleep(time.Second)
}
}
}
}()
r.running = true
return nil
}
// Lookup routes in the routing table
func (r *rtr) Lookup(q ...router.QueryOption) ([]router.Route, error) {
return r.Table().Query(q...)
}
// Watch routes
func (r *rtr) Watch(opts ...router.WatchOption) (router.Watcher, error) {
return r.table.Watch(opts...)
}
// Close the router
func (r *rtr) Close() error {
r.Lock()
defer r.Unlock()
select {
case <-r.exit:
return nil
default:
if !r.running {
return nil
}
close(r.exit)
}
r.running = false
return nil
}
// String prints debugging information about router
func (r *rtr) String() string {
return "registry"
}

27
registry_test.go Normal file
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// +build ignore
package registry
import (
"os"
"testing"
"github.com/unistack-org/micro/v3/registry/memory"
"github.com/unistack-org/micro/v3/router"
)
func routerTestSetup() router.Router {
r := memory.NewRegistry()
return NewRouter(router.Registry(r))
}
func TestRouterClose(t *testing.T) {
r := routerTestSetup()
if err := r.Close(); err != nil {
t.Errorf("failed to stop router: %v", err)
}
if len(os.Getenv("INTEGRATION_TESTS")) == 0 {
t.Logf("TestRouterStartStop STOPPED")
}
}

385
table.go Normal file
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package registry
import (
"sync"
"time"
"github.com/google/uuid"
"github.com/unistack-org/micro/v3/logger"
"github.com/unistack-org/micro/v3/router"
)
// table is an in-memory routing table
type table struct {
sync.RWMutex
// lookup for a service
lookup func(string) ([]router.Route, error)
// routes stores service routes
routes map[string]map[uint64]*route
// watchers stores table watchers
watchers map[string]*tableWatcher
}
type route struct {
route router.Route
updated time.Time
}
// newtable creates a new routing table and returns it
func newTable(lookup func(string) ([]router.Route, error), opts ...router.Option) *table {
return &table{
lookup: lookup,
routes: make(map[string]map[uint64]*route),
watchers: make(map[string]*tableWatcher),
}
}
// pruneRoutes will prune routes older than the time specified
func (t *table) pruneRoutes(olderThan time.Duration) {
var routes []router.Route
t.Lock()
// search for all the routes
for _, routeList := range t.routes {
for _, r := range routeList {
// if any route is older than
if time.Since(r.updated).Seconds() > olderThan.Seconds() {
routes = append(routes, r.route)
}
}
}
t.Unlock()
// delete the routes we've found
for _, route := range routes {
t.Delete(route)
}
}
// deleteService removes the entire service
func (t *table) deleteService(service, network string) {
t.Lock()
defer t.Unlock()
routes, ok := t.routes[service]
if !ok {
return
}
// delete the routes for the service
for hash, rt := range routes {
// TODO: check if this causes a problem
// with * in the network if that is a thing
// or blank strings
if rt.route.Network != network {
continue
}
delete(routes, hash)
}
// delete the map for the service if its empty
if len(routes) == 0 {
delete(t.routes, service)
return
}
// save the routes
t.routes[service] = routes
}
// sendEvent sends events to all subscribed watchers
func (t *table) sendEvent(e *router.Event) {
t.RLock()
defer t.RUnlock()
if len(e.Id) == 0 {
e.Id = uuid.New().String()
}
for _, w := range t.watchers {
select {
case w.resChan <- e:
case <-w.done:
// don't block forever
case <-time.After(time.Second):
}
}
}
// Create creates new route in the routing table
func (t *table) Create(r router.Route) error {
service := r.Service
sum := r.Hash()
t.Lock()
defer t.Unlock()
// check if there are any routes in the table for the route destination
if _, ok := t.routes[service]; !ok {
t.routes[service] = make(map[uint64]*route)
}
// add new route to the table for the route destination
if _, ok := t.routes[service][sum]; ok {
return router.ErrDuplicateRoute
}
// create the route
t.routes[service][sum] = &route{r, time.Now()}
if logger.V(logger.DebugLevel, logger.DefaultLogger) {
logger.Debugf("Router emitting %s for route: %s", router.Create, r.Address)
}
// send a route created event
go t.sendEvent(&router.Event{Type: router.Create, Timestamp: time.Now(), Route: r})
return nil
}
// Delete deletes the route from the routing table
func (t *table) Delete(r router.Route) error {
service := r.Service
sum := r.Hash()
t.Lock()
defer t.Unlock()
if _, ok := t.routes[service]; !ok {
return router.ErrRouteNotFound
}
if _, ok := t.routes[service][sum]; !ok {
return router.ErrRouteNotFound
}
// delete the route from the service
delete(t.routes[service], sum)
// delete the whole map if there are no routes left
if len(t.routes[service]) == 0 {
delete(t.routes, service)
}
if logger.V(logger.DebugLevel, logger.DefaultLogger) {
logger.Debugf("Router emitting %s for route: %s", router.Delete, r.Address)
}
go t.sendEvent(&router.Event{Type: router.Delete, Timestamp: time.Now(), Route: r})
return nil
}
// Update updates routing table with the new route
func (t *table) Update(r router.Route) error {
service := r.Service
sum := r.Hash()
t.Lock()
defer t.Unlock()
// check if the route destination has any routes in the table
if _, ok := t.routes[service]; !ok {
t.routes[service] = make(map[uint64]*route)
}
if _, ok := t.routes[service][sum]; !ok {
// update the route
t.routes[service][sum] = &route{r, time.Now()}
if logger.V(logger.DebugLevel, logger.DefaultLogger) {
logger.Debugf("Router emitting %s for route: %s", router.Update, r.Address)
}
go t.sendEvent(&router.Event{Type: router.Update, Timestamp: time.Now(), Route: r})
return nil
}
// just update the route, but dont emit Update event
t.routes[service][sum] = &route{r, time.Now()}
return nil
}
// List returns a list of all routes in the table
func (t *table) List() ([]router.Route, error) {
t.RLock()
defer t.RUnlock()
var routes []router.Route
for _, rmap := range t.routes {
for _, route := range rmap {
routes = append(routes, route.route)
}
}
return routes, nil
}
// isMatch checks if the route matches given query options
func isMatch(route router.Route, address, gateway, network, rtr, link string) bool {
// matches the values provided
match := func(a, b string) bool {
if a == "*" || b == "*" || a == b {
return true
}
return false
}
// a simple struct to hold our values
type compare struct {
a string
b string
}
// compare the following values
values := []compare{
{gateway, route.Gateway},
{network, route.Network},
{rtr, route.Router},
{address, route.Address},
{link, route.Link},
}
for _, v := range values {
// attempt to match each value
if !match(v.a, v.b) {
return false
}
}
return true
}
// filterRoutes finds all the routes for given network and router and returns them
func filterRoutes(routes map[uint64]*route, opts router.QueryOptions) []router.Route {
address := opts.Address
gateway := opts.Gateway
network := opts.Network
rtr := opts.Router
link := opts.Link
// routeMap stores the routes we're going to advertise
routeMap := make(map[string][]router.Route)
var routeCnt int
for _, rt := range routes {
// get the actual route
route := rt.route
if isMatch(route, address, gateway, network, rtr, link) {
// add matchihg route to the routeMap
routeKey := route.Service + "@" + route.Network
routeMap[routeKey] = append(routeMap[routeKey], route)
routeCnt++
}
}
results := make([]router.Route, 0, routeCnt)
for _, route := range routeMap {
results = append(results, route...)
}
return results
}
// Lookup queries routing table and returns all routes that match the lookup query
func (t *table) Query(q ...router.QueryOption) ([]router.Route, error) {
// create new query options
opts := router.NewQuery(q...)
// create a cwslicelist of query results
results := make([]router.Route, 0, len(t.routes))
// readAndFilter routes for this service under read lock.
readAndFilter := func(q router.QueryOptions) ([]router.Route, bool) {
t.RLock()
defer t.RUnlock()
routes, ok := t.routes[q.Service]
if !ok || len(routes) == 0 {
return nil, false
}
return filterRoutes(routes, q), true
}
if opts.Service != "*" {
// try and load services from the cache
if routes, ok := readAndFilter(opts); ok {
return routes, nil
}
// lookup the route and try again
// TODO: move this logic out of the hot path
// being hammered on queries will require multiple lookups
routes, err := t.lookup(opts.Service)
if err != nil {
return nil, err
}
// cache the routes
for _, rt := range routes {
t.Create(rt)
}
// try again
if routes, ok := readAndFilter(opts); ok {
return routes, nil
}
return nil, router.ErrRouteNotFound
}
// search through all destinations
t.RLock()
for _, routes := range t.routes {
// filter the routes
found := filterRoutes(routes, opts)
// ensure we don't append zero length routes
if len(found) == 0 {
continue
}
results = append(results, found...)
}
t.RUnlock()
return results, nil
}
// Watch returns routing table entry watcher
func (t *table) Watch(opts ...router.WatchOption) (router.Watcher, error) {
// by default watch everything
wopts := router.WatchOptions{
Service: "*",
}
for _, o := range opts {
o(&wopts)
}
w := &tableWatcher{
id: uuid.New().String(),
opts: wopts,
resChan: make(chan *router.Event, 10),
done: make(chan struct{}),
}
// when the watcher is stopped delete it
go func() {
<-w.done
t.Lock()
delete(t.watchers, w.id)
t.Unlock()
}()
// save the watcher
t.Lock()
t.watchers[w.id] = w
t.Unlock()
return w, nil
}

355
table_test.go Normal file
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// +build ignore
package registry
import (
"fmt"
"testing"
"github.com/unistack-org/micro/v3/router"
)
func testSetup(t *testing.T) (*table, router.Route) {
r, err := NewRouter()
if err != nil {
t.Fatal(err)
}
routr := r.(*rtr)
table := newTable(routr.lookup)
route := router.Route{
Service: "dest.svc",
Address: "dest.addr",
Gateway: "dest.gw",
Network: "dest.network",
Router: "src.router",
Link: "det.link",
Metric: 10,
}
return table, route
}
func TestCreate(t *testing.T) {
table, route := testSetup(t)
if err := table.Create(route); err != nil {
t.Fatalf("error adding route: %s", err)
}
// adds new route for the original destination
route.Gateway = "dest.gw2"
if err := table.Create(route); err != nil {
t.Fatalf("error adding route: %s", err)
}
// adding the same route under Insert policy must error
if err := table.Create(route); err != router.ErrDuplicateRoute {
t.Fatalf("error adding route. Expected error: %s, found: %s", router.ErrDuplicateRoute, err)
}
}
func TestDelete(t *testing.T) {
table, route := testSetup(t)
if err := table.Create(route); err != nil {
t.Fatalf("error adding route: %s", err)
}
// should fail to delete non-existent route
prevSvc := route.Service
route.Service = "randDest"
if err := table.Delete(route); err != router.ErrRouteNotFound {
t.Fatalf("error deleting route. Expected: %s, found: %s", router.ErrRouteNotFound, err)
}
// we should be able to delete the existing route
route.Service = prevSvc
if err := table.Delete(route); err != nil {
t.Fatalf("error deleting route: %s", err)
}
}
func TestUpdate(t *testing.T) {
table, route := testSetup(t)
if err := table.Create(route); err != nil {
t.Fatalf("error adding route: %s", err)
}
// change the metric of the original route
route.Metric = 200
if err := table.Update(route); err != nil {
t.Fatalf("error updating route: %s", err)
}
// this should add a new route
route.Service = "rand.dest"
if err := table.Update(route); err != nil {
t.Fatalf("error updating route: %s", err)
}
}
func TestList(t *testing.T) {
table, route := testSetup(t)
svc := []string{"one.svc", "two.svc", "three.svc"}
for i := 0; i < len(svc); i++ {
route.Service = svc[i]
if err := table.Create(route); err != nil {
t.Fatalf("error adding route: %s", err)
}
}
routes, err := table.List()
if err != nil {
t.Fatalf("error listing routes: %s", err)
}
if len(routes) != len(svc) {
t.Fatalf("incorrect number of routes listed. Expected: %d, found: %d", len(svc), len(routes))
}
}
func TestQuery(t *testing.T) {
table, route := testSetup(t)
svc := []string{"svc1", "svc2", "svc3", "svc1"}
net := []string{"net1", "net2", "net1", "net3"}
gw := []string{"gw1", "gw2", "gw3", "gw3"}
rtr := []string{"rtr1", "rt2", "rt3", "rtr3"}
for i := 0; i < len(svc); i++ {
route.Service = svc[i]
route.Network = net[i]
route.Gateway = gw[i]
route.Router = rtr[i]
route.Link = router.DefaultLink
if err := table.Create(route); err != nil {
t.Fatalf("error adding route: %s", err)
}
}
// return all routes
routes, err := table.Query()
if err != nil {
t.Fatalf("error looking up routes: %s", err)
} else if len(routes) == 0 {
t.Fatalf("error looking up routes: not found")
}
// query routes particular network
network := "net1"
routes, err = table.Query(router.QueryNetwork(network))
if err != nil {
t.Fatalf("error looking up routes: %s", err)
}
if len(routes) != 2 {
t.Fatalf("incorrect number of routes returned. Expected: %d, found: %d", 2, len(routes))
}
for _, route := range routes {
if route.Network != network {
t.Fatalf("incorrect route returned. Expected network: %s, found: %s", network, route.Network)
}
}
// query routes for particular gateway
gateway := "gw1"
routes, err = table.Query(router.QueryGateway(gateway))
if err != nil {
t.Fatalf("error looking up routes: %s", err)
}
if len(routes) != 1 {
t.Fatalf("incorrect number of routes returned. Expected: %d, found: %d", 1, len(routes))
}
if routes[0].Gateway != gateway {
t.Fatalf("incorrect route returned. Expected gateway: %s, found: %s", gateway, routes[0].Gateway)
}
// query routes for particular router
rt := "rtr1"
routes, err = table.Query(router.QueryRouter(rt))
if err != nil {
t.Fatalf("error looking up routes: %s", err)
}
if len(routes) != 1 {
t.Fatalf("incorrect number of routes returned. Expected: %d, found: %d", 1, len(routes))
}
if routes[0].Router != rt {
t.Fatalf("incorrect route returned. Expected router: %s, found: %s", rt, routes[0].Router)
}
// query particular gateway and network
query := []router.QueryOption{
router.QueryGateway(gateway),
router.QueryNetwork(network),
router.QueryRouter(rt),
}
routes, err = table.Query(query...)
if err != nil {
t.Fatalf("error looking up routes: %s", err)
}
if len(routes) != 1 {
t.Fatalf("incorrect number of routes returned. Expected: %d, found: %d", 1, len(routes))
}
if routes[0].Gateway != gateway {
t.Fatalf("incorrect route returned. Expected gateway: %s, found: %s", gateway, routes[0].Gateway)
}
if routes[0].Network != network {
t.Fatalf("incorrect network returned. Expected network: %s, found: %s", network, routes[0].Network)
}
if routes[0].Router != rt {
t.Fatalf("incorrect route returned. Expected router: %s, found: %s", rt, routes[0].Router)
}
// non-existen route query
routes, err = table.Query(router.QueryService("foobar"))
if err != router.ErrRouteNotFound {
t.Fatalf("error looking up routes. Expected: %s, found: %s", router.ErrRouteNotFound, err)
}
if len(routes) != 0 {
t.Fatalf("incorrect number of routes returned. Expected: %d, found: %d", 0, len(routes))
}
// query NO routes
query = []router.QueryOption{
router.QueryGateway(gateway),
router.QueryNetwork(network),
router.QueryLink("network"),
}
routes, err = table.Query(query...)
if err != nil {
t.Fatalf("error looking up routes: %s", err)
}
if len(routes) > 0 {
t.Fatalf("incorrect number of routes returned. Expected: %d, found: %d", 0, len(routes))
}
// insert local routes to query
for i := 0; i < 2; i++ {
route.Link = "foobar"
route.Address = fmt.Sprintf("local.route.address-%d", i)
if err := table.Create(route); err != nil {
t.Fatalf("error adding route: %s", err)
}
}
// query local routes
query = []router.QueryOption{
router.QueryGateway("*"),
router.QueryNetwork("*"),
router.QueryLink("foobar"),
}
routes, err = table.Query(query...)
if err != nil {
t.Fatalf("error looking up routes: %s", err)
}
if len(routes) != 2 {
t.Fatalf("incorrect number of routes returned. Expected: %d, found: %d", 2, len(routes))
}
// add two different routes for svcX with different metric
for i := 0; i < 2; i++ {
route.Service = "svcX"
route.Address = fmt.Sprintf("svcX.route.address-%d", i)
route.Metric = int64(100 + i)
route.Link = router.DefaultLink
if err := table.Create(route); err != nil {
t.Fatalf("error adding route: %s", err)
}
}
query = []router.QueryOption{
router.QueryService("svcX"),
}
routes, err = table.Query(query...)
if err != nil {
t.Fatalf("error looking up routes: %s", err)
}
if len(routes) != 2 {
t.Fatalf("incorrect number of routes returned. Expected: %d, found: %d", 1, len(routes))
}
}
func TestFallback(t *testing.T) {
r := &rtr{
options: router.DefaultOptions(),
}
route := router.Route{
Service: "go.micro.service.foo",
Router: r.options.Id,
Link: router.DefaultLink,
Metric: router.DefaultLocalMetric,
}
r.table = newTable(func(s string) ([]router.Route, error) {
return []router.Route{route}, nil
})
r.start()
rts, err := r.Lookup(router.QueryService("go.micro.service.foo"))
if err != nil {
t.Fatalf("error looking up service %s", err)
}
if len(rts) != 1 {
t.Fatalf("incorrect number of routes returned %d", len(rts))
}
// deleting from the table but the next query should invoke the fallback that we passed during new table creation
if err := r.table.Delete(route); err != nil {
t.Fatalf("error deleting route %s", err)
}
rts, err = r.Lookup(router.QueryService("go.micro.service.foo"))
if err != nil {
t.Fatalf("error looking up service %s", err)
}
if len(rts) != 1 {
t.Fatalf("incorrect number of routes returned %d", len(rts))
}
}
func TestFallbackError(t *testing.T) {
r := &rtr{
options: router.DefaultOptions(),
}
r.table = newTable(func(s string) ([]router.Route, error) {
return nil, fmt.Errorf("ERROR")
})
r.start()
_, err := r.Lookup(router.QueryService("go.micro.service.foo"))
if err == nil {
t.Fatalf("expected error looking up service but none returned")
}
}

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watcher.go Normal file
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package registry
import (
"sync"
"github.com/unistack-org/micro/v3/router"
)
// tableWatcher implements routing table Watcher
type tableWatcher struct {
sync.RWMutex
id string
opts router.WatchOptions
resChan chan *router.Event
done chan struct{}
}
// Next returns the next noticed action taken on table
// TODO: right now we only allow to watch particular service
func (w *tableWatcher) Next() (*router.Event, error) {
for {
select {
case res := <-w.resChan:
switch w.opts.Service {
case res.Route.Service, "*":
return res, nil
default:
continue
}
case <-w.done:
return nil, router.ErrWatcherStopped
}
}
}
// Chan returns watcher events channel
func (w *tableWatcher) Chan() (<-chan *router.Event, error) {
return w.resChan, nil
}
// Stop stops routing table watcher
func (w *tableWatcher) Stop() {
w.Lock()
defer w.Unlock()
select {
case <-w.done:
return
default:
close(w.done)
}
}