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Merge pull request #212 from crawford/metadata

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refactor: Refactor metadata and datasources to be more testable
This commit is contained in:
Alex Crawford 2014-08-26 18:45:10 -07:00
commit e8d0021140
19 changed files with 460 additions and 487 deletions
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11
coreos-cloudinit.go
View File

@ -132,6 +132,17 @@ func main() {
fmt.Printf("Failed to parse meta-data: %v\n", err)
die()
}
if ccm != nil {
fmt.Printf("Fetching network config from datasource of type %q\n", ds.Type())
netconfBytes, err := ds.FetchNetworkConfig(ccm.NetworkConfigPath)
if err != nil {
fmt.Printf("Failed fetching network config from datasource: %v\n", err)
die()
}
ccm.NetworkConfig = string(netconfBytes)
}
if ud, err := initialize.ParseUserData(userdata); err != nil {
fmt.Printf("Failed to parse user-data: %v\n", err)
die()

4
datasource/configdrive/configdrive.go
View File

@ -41,6 +41,10 @@ func (cd *configDrive) FetchUserdata() ([]byte, error) {
return cd.tryReadFile(path.Join(cd.openstackVersionRoot(), "user_data"))
}
func (cd *configDrive) FetchNetworkConfig(filename string) ([]byte, error) {
return cd.tryReadFile(path.Join(cd.openstackRoot(), filename))
}
func (cd *configDrive) Type() string {
return "cloud-drive"
}

6
datasource/datasource.go
View File

@ -1,15 +1,11 @@
package datasource
const (
Ec2ApiVersion = "2009-04-04"
OpenstackApiVersion = "2012-08-10"
)
type Datasource interface {
IsAvailable() bool
AvailabilityChanges() bool
ConfigRoot() string
FetchMetadata() ([]byte, error)
FetchUserdata() ([]byte, error)
FetchNetworkConfig(string) ([]byte, error)
Type() string
}

4
datasource/file/file.go
View File

@ -34,6 +34,10 @@ func (f *localFile) FetchUserdata() ([]byte, error) {
return ioutil.ReadFile(f.path)
}
func (f *localFile) FetchNetworkConfig(filename string) ([]byte, error) {
return nil, nil
}
func (f *localFile) Type() string {
return "local-file"
}

4
datasource/metadata/cloudsigma/server_context.go
View File

@ -126,6 +126,10 @@ func (scs *serverContextService) FetchUserdata() ([]byte, error) {
return []byte(userData), nil
}
func (scs *serverContextService) FetchNetworkConfig(a string) ([]byte, error) {
return nil, nil
}
func isBase64Encoded(field string, userdata map[string]string) bool {
base64Fields, ok := userdata["base64_fields"]
if !ok {

64
datasource/metadata/ec2/metadata.go
View File

@ -7,44 +7,28 @@ import (
"fmt"
"strings"
"github.com/coreos/coreos-cloudinit/datasource/metadata"
"github.com/coreos/coreos-cloudinit/pkg"
)
const (
DefaultAddress = "http://169.254.169.254/"
apiVersion = "2009-04-04"
userdataUrl = apiVersion + "/user-data"
metadataUrl = apiVersion + "/meta-data"
userdataPath = apiVersion + "/user-data"
metadataPath = apiVersion + "/meta-data"
)
type metadataService struct {
root string
client pkg.Getter
metadata.MetadataService
}
func NewDatasource(root string) *metadataService {
if !strings.HasSuffix(root, "/") {
root += "/"
}
return &metadataService{root, pkg.NewHttpClient()}
}
func (ms metadataService) IsAvailable() bool {
_, err := ms.client.Get(ms.root + apiVersion)
return (err == nil)
}
func (ms metadataService) AvailabilityChanges() bool {
return true
}
func (ms metadataService) ConfigRoot() string {
return ms.root
return &metadataService{metadata.NewDatasource(root, apiVersion, userdataPath, metadataPath)}
}
func (ms metadataService) FetchMetadata() ([]byte, error) {
attrs := make(map[string]interface{})
if keynames, err := fetchAttributes(ms.client, fmt.Sprintf("%s/public-keys", ms.metadataUrl())); err == nil {
if keynames, err := ms.fetchAttributes(fmt.Sprintf("%s/public-keys", ms.MetadataUrl())); err == nil {
keyIDs := make(map[string]string)
for _, keyname := range keynames {
tokens := strings.SplitN(keyname, "=", 2)
@ -56,7 +40,7 @@ func (ms metadataService) FetchMetadata() ([]byte, error) {
keys := make(map[string]string)
for name, id := range keyIDs {
sshkey, err := fetchAttribute(ms.client, fmt.Sprintf("%s/public-keys/%s/openssh-key", ms.metadataUrl(), id))
sshkey, err := ms.fetchAttribute(fmt.Sprintf("%s/public-keys/%s/openssh-key", ms.MetadataUrl(), id))
if err != nil {
return nil, err
}
@ -68,25 +52,25 @@ func (ms metadataService) FetchMetadata() ([]byte, error) {
return nil, err
}
if hostname, err := fetchAttribute(ms.client, fmt.Sprintf("%s/hostname", ms.metadataUrl())); err == nil {
if hostname, err := ms.fetchAttribute(fmt.Sprintf("%s/hostname", ms.MetadataUrl())); err == nil {
attrs["hostname"] = hostname
} else if _, ok := err.(pkg.ErrNotFound); !ok {
return nil, err
}
if localAddr, err := fetchAttribute(ms.client, fmt.Sprintf("%s/local-ipv4", ms.metadataUrl())); err == nil {
if localAddr, err := ms.fetchAttribute(fmt.Sprintf("%s/local-ipv4", ms.MetadataUrl())); err == nil {
attrs["local-ipv4"] = localAddr
} else if _, ok := err.(pkg.ErrNotFound); !ok {
return nil, err
}
if publicAddr, err := fetchAttribute(ms.client, fmt.Sprintf("%s/public-ipv4", ms.metadataUrl())); err == nil {
if publicAddr, err := ms.fetchAttribute(fmt.Sprintf("%s/public-ipv4", ms.MetadataUrl())); err == nil {
attrs["public-ipv4"] = publicAddr
} else if _, ok := err.(pkg.ErrNotFound); !ok {
return nil, err
}
if content_path, err := fetchAttribute(ms.client, fmt.Sprintf("%s/network_config/content_path", ms.metadataUrl())); err == nil {
if content_path, err := ms.fetchAttribute(fmt.Sprintf("%s/network_config/content_path", ms.MetadataUrl())); err == nil {
attrs["network_config"] = map[string]string{
"content_path": content_path,
}
@ -97,30 +81,12 @@ func (ms metadataService) FetchMetadata() ([]byte, error) {
return json.Marshal(attrs)
}
func (ms metadataService) FetchUserdata() ([]byte, error) {
if data, err := ms.client.GetRetry(ms.userdataUrl()); err == nil {
return data, err
} else if _, ok := err.(pkg.ErrNotFound); ok {
return []byte{}, nil
} else {
return data, err
}
}
func (ms metadataService) Type() string {
return "ec2-metadata-service"
}
func (ms metadataService) metadataUrl() string {
return (ms.root + metadataUrl)
}
func (ms metadataService) userdataUrl() string {
return (ms.root + userdataUrl)
}
func fetchAttributes(client pkg.Getter, url string) ([]string, error) {
resp, err := client.GetRetry(url)
func (ms metadataService) fetchAttributes(url string) ([]string, error) {
resp, err := ms.FetchData(url)
if err != nil {
return nil, err
}
@ -132,8 +98,8 @@ func fetchAttributes(client pkg.Getter, url string) ([]string, error) {
return data, scanner.Err()
}
func fetchAttribute(client pkg.Getter, url string) (string, error) {
if attrs, err := fetchAttributes(client, url); err == nil && len(attrs) > 0 {
func (ms metadataService) fetchAttribute(url string) (string, error) {
if attrs, err := ms.fetchAttributes(url); err == nil && len(attrs) > 0 {
return attrs[0], nil
} else {
return "", err

179
datasource/metadata/ec2/metadata_test.go
View File

@ -6,36 +6,11 @@ import (
"reflect"
"testing"
"github.com/coreos/coreos-cloudinit/datasource/metadata"
"github.com/coreos/coreos-cloudinit/datasource/metadata/test"
"github.com/coreos/coreos-cloudinit/pkg"
)
type testHttpClient struct {
resources map[string]string
err error
}
func (t *testHttpClient) GetRetry(url string) ([]byte, error) {
if t.err != nil {
return nil, t.err
}
if val, ok := t.resources[url]; ok {
return []byte(val), nil
} else {
return nil, pkg.ErrNotFound{fmt.Errorf("not found: %q", url)}
}
}
func (t *testHttpClient) Get(url string) ([]byte, error) {
return t.GetRetry(url)
}
func TestAvailabilityChanges(t *testing.T) {
want := true
if ac := (metadataService{}).AvailabilityChanges(); ac != want {
t.Fatalf("bad AvailabilityChanges: want %q, got %q", want, ac)
}
}
func TestType(t *testing.T) {
want := "ec2-metadata-service"
if kind := (metadataService{}).Type(); kind != want {
@ -43,102 +18,6 @@ func TestType(t *testing.T) {
}
}
func TestIsAvailable(t *testing.T) {
for _, tt := range []struct {
root string
resources map[string]string
expect bool
}{
{
root: "/",
resources: map[string]string{
"/2009-04-04": "",
},
expect: true,
},
{
root: "/",
resources: map[string]string{},
expect: false,
},
} {
service := &metadataService{tt.root, &testHttpClient{tt.resources, nil}}
if a := service.IsAvailable(); a != tt.expect {
t.Fatalf("bad isAvailable (%q): want %q, got %q", tt.resources, tt.expect, a)
}
}
}
func TestFetchUserdata(t *testing.T) {
for _, tt := range []struct {
root string
resources map[string]string
userdata []byte
clientErr error
expectErr error
}{
{
root: "/",
resources: map[string]string{
"/2009-04-04/user-data": "hello",
},
userdata: []byte("hello"),
},
{
root: "/",
clientErr: pkg.ErrNotFound{fmt.Errorf("test not found error")},
userdata: []byte{},
},
{
root: "/",
clientErr: pkg.ErrTimeout{fmt.Errorf("test timeout error")},
expectErr: pkg.ErrTimeout{fmt.Errorf("test timeout error")},
},
} {
service := &metadataService{tt.root, &testHttpClient{tt.resources, tt.clientErr}}
data, err := service.FetchUserdata()
if Error(err) != Error(tt.expectErr) {
t.Fatalf("bad error (%q): want %q, got %q", tt.resources, tt.expectErr, err)
}
if !bytes.Equal(data, tt.userdata) {
t.Fatalf("bad userdata (%q): want %q, got %q", tt.resources, tt.userdata, data)
}
}
}
func TestUrls(t *testing.T) {
for _, tt := range []struct {
root string
expectRoot string
userdata string
metadata string
}{
{
root: "/",
expectRoot: "/",
userdata: "/2009-04-04/user-data",
metadata: "/2009-04-04/meta-data",
},
{
root: "http://169.254.169.254/",
expectRoot: "http://169.254.169.254/",
userdata: "http://169.254.169.254/2009-04-04/user-data",
metadata: "http://169.254.169.254/2009-04-04/meta-data",
},
} {
service := &metadataService{tt.root, nil}
if url := service.userdataUrl(); url != tt.userdata {
t.Fatalf("bad url (%q): want %q, got %q", tt.root, tt.userdata, url)
}
if url := service.metadataUrl(); url != tt.metadata {
t.Fatalf("bad url (%q): want %q, got %q", tt.root, tt.metadata, url)
}
if url := service.ConfigRoot(); url != tt.expectRoot {
t.Fatalf("bad url (%q): want %q, got %q", tt.root, tt.expectRoot, url)
}
}
}
func TestFetchAttributes(t *testing.T) {
for _, s := range []struct {
resources map[string]string
@ -169,7 +48,7 @@ func TestFetchAttributes(t *testing.T) {
},
},
{
err: pkg.ErrNotFound{fmt.Errorf("test error")},
err: fmt.Errorf("test error"),
tests: []struct {
path string
val []string
@ -178,9 +57,11 @@ func TestFetchAttributes(t *testing.T) {
},
},
} {
client := &testHttpClient{s.resources, s.err}
service := metadataService{metadata.MetadataService{
Client: &test.HttpClient{s.resources, s.err},
}}
for _, tt := range s.tests {
attrs, err := fetchAttributes(client, tt.path)
attrs, err := service.fetchAttributes(tt.path)
if err != s.err {
t.Fatalf("bad error for %q (%q): want %q, got %q", tt.path, s.resources, s.err, err)
}
@ -221,7 +102,7 @@ func TestFetchAttribute(t *testing.T) {
},
},
{
err: pkg.ErrNotFound{fmt.Errorf("test error")},
err: fmt.Errorf("test error"),
tests: []struct {
path string
val string
@ -230,9 +111,11 @@ func TestFetchAttribute(t *testing.T) {
},
},
} {
client := &testHttpClient{s.resources, s.err}
service := metadataService{metadata.MetadataService{
Client: &test.HttpClient{s.resources, s.err},
}}
for _, tt := range s.tests {
attr, err := fetchAttribute(client, tt.path)
attr, err := service.fetchAttribute(tt.path)
if err != s.err {
t.Fatalf("bad error for %q (%q): want %q, got %q", tt.path, s.resources, s.err, err)
}
@ -246,6 +129,7 @@ func TestFetchAttribute(t *testing.T) {
func TestFetchMetadata(t *testing.T) {
for _, tt := range []struct {
root string
metadataPath string
resources map[string]string
expect []byte
clientErr error
@ -253,6 +137,7 @@ func TestFetchMetadata(t *testing.T) {
}{
{
root: "/",
metadataPath: "2009-04-04/meta-data",
resources: map[string]string{
"/2009-04-04/meta-data/public-keys": "bad\n",
},
@ -260,6 +145,7 @@ func TestFetchMetadata(t *testing.T) {
},
{
root: "/",
metadataPath: "2009-04-04/meta-data",
resources: map[string]string{
"/2009-04-04/meta-data/hostname": "host",
"/2009-04-04/meta-data/local-ipv4": "1.2.3.4",
@ -276,7 +162,11 @@ func TestFetchMetadata(t *testing.T) {
expectErr: pkg.ErrTimeout{fmt.Errorf("test error")},
},
} {
service := &metadataService{tt.root, &testHttpClient{tt.resources, tt.clientErr}}
service := &metadataService{metadata.MetadataService{
Root: tt.root,
Client: &test.HttpClient{tt.resources, tt.clientErr},
MetadataPath: tt.metadataPath,
}}
metadata, err := service.FetchMetadata()
if Error(err) != Error(tt.expectErr) {
t.Fatalf("bad error (%q): want %q, got %q", tt.resources, tt.expectErr, err)
@ -287,35 +177,6 @@ func TestFetchMetadata(t *testing.T) {
}
}
func TestNewDatasource(t *testing.T) {
for _, tt := range []struct {
root string
expectRoot string
}{
{
root: "",
expectRoot: "/",
},
{
root: "/",
expectRoot: "/",
},
{
root: "http://169.254.169.254",
expectRoot: "http://169.254.169.254/",
},
{
root: "http://169.254.169.254/",
expectRoot: "http://169.254.169.254/",
},
} {
service := NewDatasource(tt.root)
if service.root != tt.expectRoot {
t.Fatalf("bad root (%q): want %q, got %q", tt.root, tt.expectRoot, service.root)
}
}
}
func Error(err error) string {
if err != nil {
return err.Error()

61
datasource/metadata/metadata.go Normal file
View File

@ -0,0 +1,61 @@
package metadata
import (
"strings"
"github.com/coreos/coreos-cloudinit/pkg"
)
type MetadataService struct {
Root string
Client pkg.Getter
ApiVersion string
UserdataPath string
MetadataPath string
}
func NewDatasource(root, apiVersion, userdataPath, metadataPath string) MetadataService {
if !strings.HasSuffix(root, "/") {
root += "/"
}
return MetadataService{root, pkg.NewHttpClient(), apiVersion, userdataPath, metadataPath}
}
func (ms MetadataService) IsAvailable() bool {
_, err := ms.Client.Get(ms.Root + ms.ApiVersion)
return (err == nil)
}
func (ms MetadataService) AvailabilityChanges() bool {
return true
}
func (ms MetadataService) ConfigRoot() string {
return ms.Root
}
func (ms MetadataService) FetchUserdata() ([]byte, error) {
return ms.FetchData(ms.UserdataUrl())
}
func (ms MetadataService) FetchNetworkConfig(filename string) ([]byte, error) {
return nil, nil
}
func (ms MetadataService) FetchData(url string) ([]byte, error) {
if data, err := ms.Client.GetRetry(url); err == nil {
return data, err
} else if _, ok := err.(pkg.ErrNotFound); ok {
return []byte{}, nil
} else {
return data, err
}
}
func (ms MetadataService) MetadataUrl() string {
return (ms.Root + ms.MetadataPath)
}
func (ms MetadataService) UserdataUrl() string {
return (ms.Root + ms.UserdataPath)
}

171
datasource/metadata/metadata_test.go Normal file
View File

@ -0,0 +1,171 @@
package metadata
import (
"bytes"
"fmt"
"testing"
"github.com/coreos/coreos-cloudinit/datasource/metadata/test"
"github.com/coreos/coreos-cloudinit/pkg"
)
func TestAvailabilityChanges(t *testing.T) {
want := true
if ac := (MetadataService{}).AvailabilityChanges(); ac != want {
t.Fatalf("bad AvailabilityChanges: want %q, got %q", want, ac)
}
}
func TestIsAvailable(t *testing.T) {
for _, tt := range []struct {
root string
apiVersion string
resources map[string]string
expect bool
}{
{
root: "/",
apiVersion: "2009-04-04",
resources: map[string]string{
"/2009-04-04": "",
},
expect: true,
},
{
root: "/",
resources: map[string]string{},
expect: false,
},
} {
service := &MetadataService{
Root: tt.root,
Client: &test.HttpClient{tt.resources, nil},
ApiVersion: tt.apiVersion,
}
if a := service.IsAvailable(); a != tt.expect {
t.Fatalf("bad isAvailable (%q): want %q, got %q", tt.resources, tt.expect, a)
}
}
}
func TestFetchUserdata(t *testing.T) {
for _, tt := range []struct {
root string
userdataPath string
resources map[string]string
userdata []byte
clientErr error
expectErr error
}{
{
root: "/",
userdataPath: "2009-04-04/user-data",
resources: map[string]string{
"/2009-04-04/user-data": "hello",
},
userdata: []byte("hello"),
},
{
root: "/",
clientErr: pkg.ErrNotFound{fmt.Errorf("test not found error")},
userdata: []byte{},
},
{
root: "/",
clientErr: pkg.ErrTimeout{fmt.Errorf("test timeout error")},
expectErr: pkg.ErrTimeout{fmt.Errorf("test timeout error")},
},
} {
service := &MetadataService{
Root: tt.root,
Client: &test.HttpClient{tt.resources, tt.clientErr},
UserdataPath: tt.userdataPath,
}
data, err := service.FetchUserdata()
if Error(err) != Error(tt.expectErr) {
t.Fatalf("bad error (%q): want %q, got %q", tt.resources, tt.expectErr, err)
}
if !bytes.Equal(data, tt.userdata) {
t.Fatalf("bad userdata (%q): want %q, got %q", tt.resources, tt.userdata, data)
}
}
}
func TestUrls(t *testing.T) {
for _, tt := range []struct {
root string
userdataPath string
metadataPath string
expectRoot string
userdata string
metadata string
}{
{
root: "/",
userdataPath: "2009-04-04/user-data",
metadataPath: "2009-04-04/meta-data",
expectRoot: "/",
userdata: "/2009-04-04/user-data",
metadata: "/2009-04-04/meta-data",
},
{
root: "http://169.254.169.254/",
userdataPath: "2009-04-04/user-data",
metadataPath: "2009-04-04/meta-data",
expectRoot: "http://169.254.169.254/",
userdata: "http://169.254.169.254/2009-04-04/user-data",
metadata: "http://169.254.169.254/2009-04-04/meta-data",
},
} {
service := &MetadataService{
Root: tt.root,
UserdataPath: tt.userdataPath,
MetadataPath: tt.metadataPath,
}
if url := service.UserdataUrl(); url != tt.userdata {
t.Fatalf("bad url (%q): want %q, got %q", tt.root, tt.userdata, url)
}
if url := service.MetadataUrl(); url != tt.metadata {
t.Fatalf("bad url (%q): want %q, got %q", tt.root, tt.metadata, url)
}
if url := service.ConfigRoot(); url != tt.expectRoot {
t.Fatalf("bad url (%q): want %q, got %q", tt.root, tt.expectRoot, url)
}
}
}
func TestNewDatasource(t *testing.T) {
for _, tt := range []struct {
root string
expectRoot string
}{
{
root: "",
expectRoot: "/",
},
{
root: "/",
expectRoot: "/",
},
{
root: "http://169.254.169.254",
expectRoot: "http://169.254.169.254/",
},
{
root: "http://169.254.169.254/",
expectRoot: "http://169.254.169.254/",
},
} {
service := NewDatasource(tt.root, "", "", "")
if service.Root != tt.expectRoot {
t.Fatalf("bad root (%q): want %q, got %q", tt.root, tt.expectRoot, service.Root)
}
}
}
func Error(err error) string {
if err != nil {
return err.Error()
}
return ""
}

27
datasource/metadata/test/test.go Normal file
View File

@ -0,0 +1,27 @@
package test
import (
"fmt"
"github.com/coreos/coreos-cloudinit/pkg"
)
type HttpClient struct {
Resources map[string]string
Err error
}
func (t *HttpClient) GetRetry(url string) ([]byte, error) {
if t.Err != nil {
return nil, t.Err
}
if val, ok := t.Resources[url]; ok {
return []byte(val), nil
} else {
return nil, pkg.ErrNotFound{fmt.Errorf("not found: %q", url)}
}
}
func (t *HttpClient) Get(url string) ([]byte, error) {
return t.GetRetry(url)
}

4
datasource/proc_cmdline/proc_cmdline.go
View File

@ -66,6 +66,10 @@ func (c *procCmdline) FetchUserdata() ([]byte, error) {
return cfg, nil
}
func (c *procCmdline) FetchNetworkConfig(filename string) ([]byte, error) {
return nil, nil
}
func (c *procCmdline) Type() string {
return "proc-cmdline"
}

8
datasource/url/url.go
View File

@ -1,6 +1,8 @@
package url
import "github.com/coreos/coreos-cloudinit/pkg"
import (
"github.com/coreos/coreos-cloudinit/pkg"
)
type remoteFile struct {
url string
@ -33,6 +35,10 @@ func (f *remoteFile) FetchUserdata() ([]byte, error) {
return client.GetRetry(f.url)
}
func (f *remoteFile) FetchNetworkConfig(filename string) ([]byte, error) {
return nil, nil
}
func (f *remoteFile) Type() string {
return "url"
}

12
initialize/config.go
View File

@ -3,7 +3,6 @@ package initialize
import (
"errors"
"fmt"
"io/ioutil"
"log"
"path"
@ -42,6 +41,7 @@ type CloudConfig struct {
Users []system.User
ManageEtcHosts EtcHosts `yaml:"manage_etc_hosts"`
NetworkConfigPath string
NetworkConfig string
}
type warner func(format string, v ...interface{})
@ -258,17 +258,11 @@ func Apply(cfg CloudConfig, env *Environment) error {
}
if env.NetconfType() != "" {
filename := path.Join(env.ConfigRoot(), cfg.NetworkConfigPath)
log.Printf("Attempting to read config from %q\n", filename)
netconfBytes, err := ioutil.ReadFile(filename)
if err != nil {
return err
}
var interfaces []network.InterfaceGenerator
var err error
switch env.NetconfType() {
case "debian":
interfaces, err = network.ProcessDebianNetconf(string(netconfBytes))
interfaces, err = network.ProcessDebianNetconf(cfg.NetworkConfig)
default:
return fmt.Errorf("Unsupported network config format %q", env.NetconfType())
}

39
network/interface.go
View File

@ -2,6 +2,7 @@ package network
import (
"fmt"
"net"
"sort"
"strconv"
"strings"
@ -25,13 +26,25 @@ type networkInterface interface {
type logicalInterface struct {
name string
hwaddr net.HardwareAddr
config configMethod
children []networkInterface
configDepth int
}
func (i *logicalInterface) Name() string {
return i.name
}
func (i *logicalInterface) Network() string {
config := fmt.Sprintf("[Match]\nName=%s\n\n[Network]\n", i.name)
config := fmt.Sprintln("[Match]")
if i.name != "" {
config += fmt.Sprintf("Name=%s\n", i.name)
}
if i.hwaddr != nil {
config += fmt.Sprintf("MACAddress=%s\n", i.hwaddr)
}
config += "\n[Network]\n"
for _, child := range i.children {
switch iface := child.(type) {
@ -47,8 +60,8 @@ func (i *logicalInterface) Network() string {
for _, nameserver := range conf.nameservers {
config += fmt.Sprintf("DNS=%s\n", nameserver)
}
if conf.address.IP != nil {
config += fmt.Sprintf("\n[Address]\nAddress=%s\n", conf.address.String())
for _, addr := range conf.addresses {
config += fmt.Sprintf("\n[Address]\nAddress=%s\n", addr.String())
}
for _, route := range conf.routes {
config += fmt.Sprintf("\n[Route]\nDestination=%s\nGateway=%s\n", route.destination.String(), route.gateway)
@ -64,6 +77,10 @@ func (i *logicalInterface) Link() string {
return ""
}
func (i *logicalInterface) Netdev() string {
return ""
}
func (i *logicalInterface) Filename() string {
return fmt.Sprintf("%02x-%s", i.configDepth, i.name)
}
@ -84,14 +101,6 @@ type physicalInterface struct {
logicalInterface
}
func (p *physicalInterface) Name() string {
return p.name
}
func (p *physicalInterface) Netdev() string {
return ""
}
func (p *physicalInterface) Type() string {
return "physical"
}
@ -102,10 +111,6 @@ type bondInterface struct {
options map[string]string
}
func (b *bondInterface) Name() string {
return b.name
}
func (b *bondInterface) Netdev() string {
return fmt.Sprintf("[NetDev]\nKind=bond\nName=%s\n", b.name)
}
@ -129,10 +134,6 @@ type vlanInterface struct {
rawDevice string
}
func (v *vlanInterface) Name() string {
return v.name
}
func (v *vlanInterface) Netdev() string {
config := fmt.Sprintf("[NetDev]\nKind=vlan\nName=%s\n", v.name)
switch c := v.config.(type) {

294
network/interface_test.go
View File

@ -6,241 +6,101 @@ import (
"testing"
)
func TestPhysicalInterfaceName(t *testing.T) {
p := physicalInterface{logicalInterface{name: "testname"}}
if p.Name() != "testname" {
t.FailNow()
}
}
func TestPhysicalInterfaceNetdev(t *testing.T) {
p := physicalInterface{}
if p.Netdev() != "" {
t.FailNow()
}
}
func TestPhysicalInterfaceLink(t *testing.T) {
p := physicalInterface{}
if p.Link() != "" {
t.FailNow()
}
}
func TestPhysicalInterfaceNetwork(t *testing.T) {
p := physicalInterface{logicalInterface{
func TestInterfaceGenerators(t *testing.T) {
for _, tt := range []struct {
name string
netdev string
link string
network string
kind string
iface InterfaceGenerator
}{
{
name: "",
network: "[Match]\nMACAddress=00:01:02:03:04:05\n\n[Network]\n",
kind: "physical",
iface: &physicalInterface{logicalInterface{
hwaddr: net.HardwareAddr([]byte{0, 1, 2, 3, 4, 5}),
}},
},
{
name: "testname",
network: "[Match]\nName=testname\n\n[Network]\nBond=testbond1\nVLAN=testvlan1\nVLAN=testvlan2\n",
kind: "physical",
iface: &physicalInterface{logicalInterface{
name: "testname",
children: []networkInterface{
&bondInterface{
logicalInterface{
name: "testbond1",
&bondInterface{logicalInterface: logicalInterface{name: "testbond1"}},
&vlanInterface{logicalInterface: logicalInterface{name: "testvlan1"}, id: 1},
&vlanInterface{logicalInterface: logicalInterface{name: "testvlan2"}, id: 1},
},
nil,
nil,
}},
},
&vlanInterface{
logicalInterface{
name: "testvlan1",
},
1,
"",
},
&vlanInterface{
logicalInterface{
name: "testvlan2",
},
1,
"",
},
},
}}
network := `[Match]
Name=testname
[Network]
Bond=testbond1
VLAN=testvlan1
VLAN=testvlan2
`
if p.Network() != network {
t.FailNow()
}
}
func TestBondInterfaceName(t *testing.T) {
b := bondInterface{logicalInterface{name: "testname"}, nil, nil}
if b.Name() != "testname" {
t.FailNow()
}
}
func TestBondInterfaceNetdev(t *testing.T) {
b := bondInterface{logicalInterface{name: "testname"}, nil, nil}
netdev := `[NetDev]
Kind=bond
Name=testname
`
if b.Netdev() != netdev {
t.FailNow()
}
}
func TestBondInterfaceLink(t *testing.T) {
b := bondInterface{}
if b.Link() != "" {
t.FailNow()
}
}
func TestBondInterfaceNetwork(t *testing.T) {
b := bondInterface{
logicalInterface{
{
name: "testname",
netdev: "[NetDev]\nKind=bond\nName=testname\n",
network: "[Match]\nName=testname\n\n[Network]\nBond=testbond1\nVLAN=testvlan1\nVLAN=testvlan2\nDHCP=true\n",
kind: "bond",
iface: &bondInterface{logicalInterface: logicalInterface{
name: "testname",
config: configMethodDHCP{},
children: []networkInterface{
&bondInterface{
logicalInterface{
name: "testbond1",
&bondInterface{logicalInterface: logicalInterface{name: "testbond1"}},
&vlanInterface{logicalInterface: logicalInterface{name: "testvlan1"}, id: 1},
&vlanInterface{logicalInterface: logicalInterface{name: "testvlan2"}, id: 1},
},
nil,
nil,
},
&vlanInterface{
logicalInterface{
name: "testvlan1",
},
1,
"",
},
&vlanInterface{
logicalInterface{
name: "testvlan2",
},
1,
"",
},
},
},
nil,
nil,
}
network := `[Match]
Name=testname
[Network]
Bond=testbond1
VLAN=testvlan1
VLAN=testvlan2
DHCP=true
`
if b.Network() != network {
t.FailNow()
}
}
func TestVLANInterfaceName(t *testing.T) {
v := vlanInterface{logicalInterface{name: "testname"}, 1, ""}
if v.Name() != "testname" {
t.FailNow()
}
}
func TestVLANInterfaceNetdev(t *testing.T) {
for _, tt := range []struct {
i vlanInterface
l string
}{
{
vlanInterface{logicalInterface{name: "testname"}, 1, ""},
"[NetDev]\nKind=vlan\nName=testname\n\n[VLAN]\nId=1\n",
}},
},
{
vlanInterface{logicalInterface{name: "testname", config: configMethodStatic{hwaddress: net.HardwareAddr([]byte{0, 1, 2, 3, 4, 5})}}, 1, ""},
"[NetDev]\nKind=vlan\nName=testname\nMACAddress=00:01:02:03:04:05\n\n[VLAN]\nId=1\n",
name: "testname",
netdev: "[NetDev]\nKind=vlan\nName=testname\n\n[VLAN]\nId=1\n",
network: "[Match]\nName=testname\n\n[Network]\n",
kind: "vlan",
iface: &vlanInterface{logicalInterface{name: "testname"}, 1, ""},
},
{
vlanInterface{logicalInterface{name: "testname", config: configMethodDHCP{hwaddress: net.HardwareAddr([]byte{0, 1, 2, 3, 4, 5})}}, 1, ""},
"[NetDev]\nKind=vlan\nName=testname\nMACAddress=00:01:02:03:04:05\n\n[VLAN]\nId=1\n",
name: "testname",
netdev: "[NetDev]\nKind=vlan\nName=testname\nMACAddress=00:01:02:03:04:05\n\n[VLAN]\nId=1\n",
network: "[Match]\nName=testname\n\n[Network]\n",
kind: "vlan",
iface: &vlanInterface{logicalInterface{name: "testname", config: configMethodStatic{hwaddress: net.HardwareAddr([]byte{0, 1, 2, 3, 4, 5})}}, 1, ""},
},
} {
if tt.i.Netdev() != tt.l {
t.Fatalf("bad netdev config (%q): got %q, want %q", tt.i, tt.i.Netdev(), tt.l)
}
}
}
func TestVLANInterfaceLink(t *testing.T) {
v := vlanInterface{}
if v.Link() != "" {
t.FailNow()
}
}
func TestVLANInterfaceNetwork(t *testing.T) {
v := vlanInterface{
logicalInterface{
{
name: "testname",
netdev: "[NetDev]\nKind=vlan\nName=testname\nMACAddress=00:01:02:03:04:05\n\n[VLAN]\nId=1\n",
network: "[Match]\nName=testname\n\n[Network]\nDHCP=true\n",
kind: "vlan",
iface: &vlanInterface{logicalInterface{name: "testname", config: configMethodDHCP{hwaddress: net.HardwareAddr([]byte{0, 1, 2, 3, 4, 5})}}, 1, ""},
},
{
name: "testname",
netdev: "[NetDev]\nKind=vlan\nName=testname\n\n[VLAN]\nId=0\n",
network: "[Match]\nName=testname\n\n[Network]\nDNS=8.8.8.8\n\n[Address]\nAddress=192.168.1.100/24\n\n[Route]\nDestination=0.0.0.0/0\nGateway=1.2.3.4\n",
kind: "vlan",
iface: &vlanInterface{logicalInterface: logicalInterface{
name: "testname",
config: configMethodStatic{
address: net.IPNet{
IP: []byte{192, 168, 1, 100},
Mask: []byte{255, 255, 255, 0},
addresses: []net.IPNet{{IP: []byte{192, 168, 1, 100}, Mask: []byte{255, 255, 255, 0}}},
nameservers: []net.IP{[]byte{8, 8, 8, 8}},
routes: []route{route{destination: net.IPNet{IP: []byte{0, 0, 0, 0}, Mask: []byte{0, 0, 0, 0}}, gateway: []byte{1, 2, 3, 4}}},
},
nameservers: []net.IP{
[]byte{8, 8, 8, 8},
},
routes: []route{
route{
destination: net.IPNet{
IP: []byte{0, 0, 0, 0},
Mask: []byte{0, 0, 0, 0},
},
gateway: []byte{1, 2, 3, 4},
},
},
},
},
0,
"",
}
network := `[Match]
Name=testname
[Network]
DNS=8.8.8.8
[Address]
Address=192.168.1.100/24
[Route]
Destination=0.0.0.0/0
Gateway=1.2.3.4
`
if v.Network() != network {
t.Log(v.Network())
t.FailNow()
}
}
func TestType(t *testing.T) {
for _, tt := range []struct {
i InterfaceGenerator
t string
}{
{
i: &physicalInterface{},
t: "physical",
},
{
i: &vlanInterface{},
t: "vlan",
},
{
i: &bondInterface{},
t: "bond",
}},
},
} {
if tp := tt.i.Type(); tp != tt.t {
t.Fatalf("bad type (%q): got %s, want %s", tt.i, tp, tt.t)
if name := tt.iface.Name(); name != tt.name {
t.Fatalf("bad name (%q): want %q, got %q", tt.iface, tt.name, name)
}
if netdev := tt.iface.Netdev(); netdev != tt.netdev {
t.Fatalf("bad netdev (%q): want %q, got %q", tt.iface, tt.netdev, netdev)
}
if link := tt.iface.Link(); link != tt.link {
t.Fatalf("bad link (%q): want %q, got %q", tt.iface, tt.link, link)
}
if network := tt.iface.Network(); network != tt.network {
t.Fatalf("bad network (%q): want %q, got %q", tt.iface, tt.network, network)
}
if kind := tt.iface.Type(); kind != tt.kind {
t.Fatalf("bad type (%q): want %q, got %q", tt.iface, tt.kind, kind)
}
}
}

9
network/stanza.go
View File

@ -37,7 +37,7 @@ type route struct {
type configMethod interface{}
type configMethodStatic struct {
address net.IPNet
addresses []net.IPNet
nameservers []net.IP
routes []route
hwaddress net.HardwareAddr
@ -193,20 +193,21 @@ func parseInterfaceStanza(attributes []string, options []string) (*stanzaInterfa
switch confMethod {
case "static":
config := configMethodStatic{
addresses: make([]net.IPNet, 1),
routes: make([]route, 0),
nameservers: make([]net.IP, 0),
}
if addresses, ok := optionMap["address"]; ok {
if len(addresses) == 1 {
config.address.IP = net.ParseIP(addresses[0])
config.addresses[0].IP = net.ParseIP(addresses[0])
}
}
if netmasks, ok := optionMap["netmask"]; ok {
if len(netmasks) == 1 {
config.address.Mask = net.IPMask(net.ParseIP(netmasks[0]).To4())
config.addresses[0].Mask = net.IPMask(net.ParseIP(netmasks[0]).To4())
}
}
if config.address.IP == nil || config.address.Mask == nil {
if config.addresses[0].IP == nil || config.addresses[0].Mask == nil {
return nil, fmt.Errorf("malformed static network config for %q", iface)
}
if gateways, ok := optionMap["gateway"]; ok {

6
network/stanza_test.go
View File

@ -194,9 +194,11 @@ func TestParseVLANStanzas(t *testing.T) {
func TestParseInterfaceStanzaStaticAddress(t *testing.T) {
options := []string{"address 192.168.1.100", "netmask 255.255.255.0"}
expect := net.IPNet{
expect := []net.IPNet{
{
IP: net.IPv4(192, 168, 1, 100),
Mask: net.IPv4Mask(255, 255, 255, 0),
},
}
iface, err := parseInterfaceStanza([]string{"eth", "inet", "static"}, options)
@ -207,7 +209,7 @@ func TestParseInterfaceStanzaStaticAddress(t *testing.T) {
if !ok {
t.FailNow()
}
if !reflect.DeepEqual(static.address, expect) {
if !reflect.DeepEqual(static.addresses, expect) {
t.FailNow()
}
}

9
system/networkd.go
View File

@ -74,15 +74,14 @@ func maybeProbe8012q(interfaces []network.InterfaceGenerator) error {
}
func maybeProbeBonding(interfaces []network.InterfaceGenerator) error {
args := []string{"bonding"}
for _, iface := range interfaces {
if iface.Type() == "bond" {
args = append(args, strings.Split(iface.ModprobeParams(), " ")...)
break
}
}
args := append([]string{"bonding"}, strings.Split(iface.ModprobeParams(), " ")...)
log.Printf("Probing LKM %q (%q)\n", "bonding", args)
return exec.Command("modprobe", args...).Run()
}
}
return nil
}
func restartNetworkd() error {

1
test
View File

@ -18,6 +18,7 @@ declare -a TESTPKGS=(initialize
datasource
datasource/configdrive
datasource/file
datasource/metadata
datasource/metadata/cloudsigma
datasource/metadata/ec2
datasource/proc_cmdline