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Merge pull request #213 from crawford/digitalocean

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digitalocean: Add support for DigitalOcean
This commit is contained in:
Alex Crawford 2014-09-01 16:55:12 -07:00
commit 9d15f2cfaf
12 changed files with 763 additions and 16 deletions
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39
coreos-cloudinit.go
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@ -11,6 +11,7 @@ import (
"github.com/coreos/coreos-cloudinit/datasource/configdrive"
"github.com/coreos/coreos-cloudinit/datasource/file"
"github.com/coreos/coreos-cloudinit/datasource/metadata/cloudsigma"
"github.com/coreos/coreos-cloudinit/datasource/metadata/digitalocean"
"github.com/coreos/coreos-cloudinit/datasource/metadata/ec2"
"github.com/coreos/coreos-cloudinit/datasource/proc_cmdline"
"github.com/coreos/coreos-cloudinit/datasource/url"
@ -30,13 +31,14 @@ var (
printVersion bool
ignoreFailure bool
sources struct {
file string
configDrive string
metadataService bool
ec2MetadataService string
cloudSigmaMetadataService bool
url string
procCmdLine bool
file string
configDrive string
metadataService bool
ec2MetadataService string
cloudSigmaMetadataService bool
digitalOceanMetadataService string
url string
procCmdLine bool
}
convertNetconf string
workspace string
@ -49,11 +51,12 @@ func init() {
flag.StringVar(&sources.file, "from-file", "", "Read user-data from provided file")
flag.StringVar(&sources.configDrive, "from-configdrive", "", "Read data from provided cloud-drive directory")
flag.BoolVar(&sources.metadataService, "from-metadata-service", false, "[DEPRECATED - Use -from-ec2-metadata] Download data from metadata service")
flag.StringVar(&sources.ec2MetadataService, "from-ec2-metadata", "", "Download data from the provided metadata service")
flag.StringVar(&sources.ec2MetadataService, "from-ec2-metadata", "", "Download EC2 data from the provided url")
flag.BoolVar(&sources.cloudSigmaMetadataService, "from-cloudsigma-metadata", false, "Download data from CloudSigma server context")
flag.StringVar(&sources.digitalOceanMetadataService, "from-digitalocean-metadata", "", "Download DigitalOcean data from the provided url")
flag.StringVar(&sources.url, "from-url", "", "Download user-data from provided url")
flag.BoolVar(&sources.procCmdLine, "from-proc-cmdline", false, fmt.Sprintf("Parse %s for '%s=<url>', using the cloud-config served by an HTTP GET to <url>", proc_cmdline.ProcCmdlineLocation, proc_cmdline.ProcCmdlineCloudConfigFlag))
flag.StringVar(&convertNetconf, "convert-netconf", "", "Read the network config provided in cloud-drive and translate it from the specified format into networkd unit files (requires the -from-configdrive flag)")
flag.StringVar(&convertNetconf, "convert-netconf", "", "Read the network config provided in cloud-drive and translate it from the specified format into networkd unit files")
flag.StringVar(&workspace, "workspace", "/var/lib/coreos-cloudinit", "Base directory coreos-cloudinit should use to store data")
flag.StringVar(&sshKeyName, "ssh-key-name", initialize.DefaultSSHKeyName, "Add SSH keys to the system with the given name")
}
@ -73,16 +76,12 @@ func main() {
os.Exit(0)
}
if convertNetconf != "" && sources.configDrive == "" {
fmt.Println("-convert-netconf flag requires -from-configdrive")
os.Exit(1)
}
switch convertNetconf {
case "":
case "debian":
case "digitalocean":
default:
fmt.Printf("Invalid option to -convert-netconf: '%s'. Supported options: 'debian'\n", convertNetconf)
fmt.Printf("Invalid option to -convert-netconf: '%s'. Supported options: 'debian, digitalocean'\n", convertNetconf)
os.Exit(1)
}
@ -209,6 +208,13 @@ func mergeCloudConfig(mdcc, udcc initialize.CloudConfig) (cc initialize.CloudCon
udcc.NetworkConfigPath = mdcc.NetworkConfigPath
}
}
if mdcc.NetworkConfig != "" {
if udcc.NetworkConfig != "" {
fmt.Printf("Warning: user-data NetworkConfig %s overrides metadata NetworkConfig %s\n", udcc.NetworkConfig, mdcc.NetworkConfig)
} else {
udcc.NetworkConfig = mdcc.NetworkConfig
}
}
return udcc
}
@ -234,6 +240,9 @@ func getDatasources() []datasource.Datasource {
if sources.cloudSigmaMetadataService {
dss = append(dss, cloudsigma.NewServerContextService())
}
if sources.digitalOceanMetadataService != "" {
dss = append(dss, digitalocean.NewDatasource(sources.digitalOceanMetadataService))
}
if sources.procCmdLine {
dss = append(dss, proc_cmdline.NewDatasource())
}

10
coreos-cloudinit_test.go
View File

@ -12,6 +12,7 @@ func TestMergeCloudConfig(t *testing.T) {
SSHAuthorizedKeys: []string{"abc", "def"},
Hostname: "foobar",
NetworkConfigPath: "/path/somewhere",
NetworkConfig: `{}`,
}
for i, tt := range []struct {
udcc initialize.CloudConfig
@ -36,6 +37,7 @@ func TestMergeCloudConfig(t *testing.T) {
initialize.CloudConfig{
Hostname: "meta-hostname",
NetworkConfigPath: "/path/meta",
NetworkConfig: `{"hostname":"test"}`,
},
simplecc,
},
@ -45,6 +47,7 @@ func TestMergeCloudConfig(t *testing.T) {
SSHAuthorizedKeys: []string{"abc", "def"},
Hostname: "user-hostname",
NetworkConfigPath: "/path/somewhere",
NetworkConfig: `{"hostname":"test"}`,
},
initialize.CloudConfig{
SSHAuthorizedKeys: []string{"woof", "qux"},
@ -54,6 +57,7 @@ func TestMergeCloudConfig(t *testing.T) {
SSHAuthorizedKeys: []string{"abc", "def", "woof", "qux"},
Hostname: "user-hostname",
NetworkConfigPath: "/path/somewhere",
NetworkConfig: `{"hostname":"test"}`,
},
},
{
@ -64,11 +68,13 @@ func TestMergeCloudConfig(t *testing.T) {
initialize.CloudConfig{
SSHAuthorizedKeys: []string{"zaphod", "beeblebrox"},
NetworkConfigPath: "/dev/fun",
NetworkConfig: `{"hostname":"test"}`,
},
initialize.CloudConfig{
Hostname: "supercool",
SSHAuthorizedKeys: []string{"zaphod", "beeblebrox"},
NetworkConfigPath: "/dev/fun",
NetworkConfig: `{"hostname":"test"}`,
},
},
{
@ -80,11 +86,13 @@ func TestMergeCloudConfig(t *testing.T) {
initialize.CloudConfig{
Hostname: "youyouyou",
NetworkConfigPath: "meta-meta-yo",
NetworkConfig: `{"hostname":"test"}`,
},
initialize.CloudConfig{
Hostname: "mememe",
ManageEtcHosts: initialize.EtcHosts("lolz"),
NetworkConfigPath: "meta-meta-yo",
NetworkConfig: `{"hostname":"test"}`,
},
},
{
@ -95,10 +103,12 @@ func TestMergeCloudConfig(t *testing.T) {
initialize.CloudConfig{
ManageEtcHosts: initialize.EtcHosts("lolz"),
NetworkConfigPath: "meta-meta-yo",
NetworkConfig: `{"hostname":"test"}`,
},
initialize.CloudConfig{
Hostname: "mememe",
NetworkConfigPath: "meta-meta-yo",
NetworkConfig: `{"hostname":"test"}`,
},
},
} {

107
datasource/metadata/digitalocean/metadata.go Normal file
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@ -0,0 +1,107 @@
package digitalocean
import (
"encoding/json"
"strconv"
"github.com/coreos/coreos-cloudinit/datasource/metadata"
)
const (
DefaultAddress = "http://169.254.169.254/"
apiVersion = "metadata/v1"
userdataUrl = apiVersion + "/user-data"
metadataPath = apiVersion + ".json"
)
type Address struct {
IPAddress string `json:"ip_address"`
Netmask string `json:"netmask"`
Cidr int `json:"cidr"`
Gateway string `json:"gateway"`
}
type Interface struct {
IPv4 *Address `json:"ipv4"`
IPv6 *Address `json:"ipv6"`
MAC string `json:"mac"`
Type string `json:"type"`
}
type Interfaces struct {
Public []Interface `json:"public"`
Private []Interface `json:"private"`
}
type DNS struct {
Nameservers []string `json:"nameservers"`
}
type Metadata struct {
Hostname string `json:"hostname"`
Interfaces Interfaces `json:"interfaces"`
PublicKeys []string `json:"public_keys"`
DNS DNS `json:"dns"`
}
type metadataService struct {
interfaces Interfaces
dns DNS
metadata.MetadataService
}
func NewDatasource(root string) *metadataService {
return &metadataService{MetadataService: metadata.NewDatasource(root, apiVersion, userdataUrl, metadataPath)}
}
func (ms *metadataService) FetchMetadata() ([]byte, error) {
data, err := ms.FetchData(ms.MetadataUrl())
if err != nil || len(data) == 0 {
return []byte{}, err
}
var metadata Metadata
if err := json.Unmarshal(data, &metadata); err != nil {
return []byte{}, err
}
ms.interfaces = metadata.Interfaces
ms.dns = metadata.DNS
attrs := make(map[string]interface{})
if len(metadata.Interfaces.Public) > 0 {
if metadata.Interfaces.Public[0].IPv4 != nil {
attrs["public-ipv4"] = metadata.Interfaces.Public[0].IPv4.IPAddress
}
if metadata.Interfaces.Public[0].IPv6 != nil {
attrs["public-ipv6"] = metadata.Interfaces.Public[0].IPv6.IPAddress
}
}
if len(metadata.Interfaces.Private) > 0 {
if metadata.Interfaces.Private[0].IPv4 != nil {
attrs["local-ipv4"] = metadata.Interfaces.Private[0].IPv4.IPAddress
}
if metadata.Interfaces.Private[0].IPv6 != nil {
attrs["local-ipv6"] = metadata.Interfaces.Private[0].IPv6.IPAddress
}
}
attrs["hostname"] = metadata.Hostname
keys := make(map[string]string)
for i, key := range metadata.PublicKeys {
keys[strconv.Itoa(i)] = key
}
attrs["public_keys"] = keys
return json.Marshal(attrs)
}
func (ms metadataService) FetchNetworkConfig(filename string) ([]byte, error) {
return json.Marshal(Metadata{
Interfaces: ms.interfaces,
DNS: ms.dns,
})
}
func (ms metadataService) Type() string {
return "digitalocean-metadata-service"
}

99
datasource/metadata/digitalocean/metadata_test.go Normal file
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@ -0,0 +1,99 @@
package digitalocean
import (
"bytes"
"fmt"
"testing"
"github.com/coreos/coreos-cloudinit/datasource/metadata"
"github.com/coreos/coreos-cloudinit/datasource/metadata/test"
"github.com/coreos/coreos-cloudinit/pkg"
)
func TestType(t *testing.T) {
want := "digitalocean-metadata-service"
if kind := (metadataService{}).Type(); kind != want {
t.Fatalf("bad type: want %q, got %q", want, kind)
}
}
func TestFetchMetadata(t *testing.T) {
for _, tt := range []struct {
root string
metadataPath string
resources map[string]string
expect []byte
clientErr error
expectErr error
}{
{
root: "/",
metadataPath: "v1.json",
resources: map[string]string{
"/v1.json": "bad",
},
expectErr: fmt.Errorf("invalid character 'b' looking for beginning of value"),
},
{
root: "/",
metadataPath: "v1.json",
resources: map[string]string{
"/v1.json": `{
"droplet_id": 1,
"user_data": "hello",
"vendor_data": "hello",
"public_keys": [
"publickey1",
"publickey2"
],
"region": "nyc2",
"interfaces": {
"public": [
{
"ipv4": {
"ip_address": "192.168.1.2",
"netmask": "255.255.255.0",
"gateway": "192.168.1.1"
},
"ipv6": {
"ip_address": "fe00::",
"cidr": 126,
"gateway": "fe00::"
},
"mac": "ab:cd:ef:gh:ij",
"type": "public"
}
]
}
}`,
},
expect: []byte(`{"hostname":"","public-ipv4":"192.168.1.2","public-ipv6":"fe00::","public_keys":{"0":"publickey1","1":"publickey2"}}`),
},
{
clientErr: pkg.ErrTimeout{fmt.Errorf("test error")},
expectErr: pkg.ErrTimeout{fmt.Errorf("test error")},
},
} {
service := &metadataService{
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)
}
if !bytes.Equal(metadata, tt.expect) {
t.Fatalf("bad fetch (%q): want %q, got %q", tt.resources, tt.expect, metadata)
}
}
}
func Error(err error) string {
if err != nil {
return err.Error()
}
return ""
}

2
initialize/config.go
View File

@ -263,6 +263,8 @@ func Apply(cfg CloudConfig, env *Environment) error {
switch env.NetconfType() {
case "debian":
interfaces, err = network.ProcessDebianNetconf(cfg.NetworkConfig)
case "digitalocean":
interfaces, err = network.ProcessDigitalOceanNetconf(cfg.NetworkConfig)
default:
return fmt.Errorf("Unsupported network config format %q", env.NetconfType())
}

4
network/network.go → network/debian.go
View File

@ -1,10 +1,12 @@
package network
import (
"log"
"strings"
)
func ProcessDebianNetconf(config string) ([]InterfaceGenerator, error) {
log.Println("Processing Debian network config")
lines := formatConfig(config)
stanzas, err := parseStanzas(lines)
if err != nil {
@ -18,7 +20,9 @@ func ProcessDebianNetconf(config string) ([]InterfaceGenerator, error) {
interfaces = append(interfaces, s)
}
}
log.Printf("Parsed %d network interfaces\n", len(interfaces))
log.Println("Processed Debian network config")
return buildInterfaces(interfaces), nil
}

0
network/network_test.go → network/debian_test.go
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142
network/digitalocean.go Normal file
View File

@ -0,0 +1,142 @@
package network
import (
"encoding/json"
"fmt"
"log"
"net"
"github.com/coreos/coreos-cloudinit/datasource/metadata/digitalocean"
)
func ProcessDigitalOceanNetconf(config string) ([]InterfaceGenerator, error) {
log.Println("Processing DigitalOcean network config")
if config == "" {
return nil, nil
}
var cfg digitalocean.Metadata
if err := json.Unmarshal([]byte(config), &cfg); err != nil {
return nil, err
}
log.Println("Parsing nameservers")
nameservers, err := parseNameservers(cfg.DNS)
if err != nil {
return nil, err
}
log.Printf("Parsed %d nameservers\n", len(nameservers))
log.Println("Parsing interfaces")
generators, err := parseInterfaces(cfg.Interfaces, nameservers)
if err != nil {
return nil, err
}
log.Printf("Parsed %d network interfaces\n", len(generators))
log.Println("Processed DigitalOcean network config")
return generators, nil
}
func parseNameservers(cfg digitalocean.DNS) ([]net.IP, error) {
nameservers := make([]net.IP, 0, len(cfg.Nameservers))
for _, ns := range cfg.Nameservers {
if ip := net.ParseIP(ns); ip == nil {
return nil, fmt.Errorf("could not parse %q as nameserver IP address", ns)
} else {
nameservers = append(nameservers, ip)
}
}
return nameservers, nil
}
func parseInterfaces(cfg digitalocean.Interfaces, nameservers []net.IP) ([]InterfaceGenerator, error) {
generators := make([]InterfaceGenerator, 0, len(cfg.Public)+len(cfg.Private))
for _, iface := range cfg.Public {
if generator, err := parseInterface(iface, nameservers, true); err == nil {
generators = append(generators, &physicalInterface{*generator})
} else {
return nil, err
}
}
for _, iface := range cfg.Private {
if generator, err := parseInterface(iface, []net.IP{}, false); err == nil {
generators = append(generators, &physicalInterface{*generator})
} else {
return nil, err
}
}
return generators, nil
}
func parseInterface(iface digitalocean.Interface, nameservers []net.IP, useRoute bool) (*logicalInterface, error) {
routes := make([]route, 0)
addresses := make([]net.IPNet, 0)
if iface.IPv4 != nil {
var ip, mask, gateway net.IP
if ip = net.ParseIP(iface.IPv4.IPAddress); ip == nil {
return nil, fmt.Errorf("could not parse %q as IPv4 address", iface.IPv4.IPAddress)
}
if mask = net.ParseIP(iface.IPv4.Netmask); mask == nil {
return nil, fmt.Errorf("could not parse %q as IPv4 mask", iface.IPv4.Netmask)
}
addresses = append(addresses, net.IPNet{
IP: ip,
Mask: net.IPMask(mask),
})
if useRoute {
if gateway = net.ParseIP(iface.IPv4.Gateway); gateway == nil {
return nil, fmt.Errorf("could not parse %q as IPv4 gateway", iface.IPv4.Gateway)
}
routes = append(routes, route{
destination: net.IPNet{
IP: net.IPv4zero,
Mask: net.IPMask(net.IPv4zero),
},
gateway: gateway,
})
}
}
if iface.IPv6 != nil {
var ip, gateway net.IP
if ip = net.ParseIP(iface.IPv6.IPAddress); ip == nil {
return nil, fmt.Errorf("could not parse %q as IPv6 address", iface.IPv6.IPAddress)
}
addresses = append(addresses, net.IPNet{
IP: ip,
Mask: net.CIDRMask(iface.IPv6.Cidr, net.IPv6len*8),
})
if useRoute {
if gateway = net.ParseIP(iface.IPv6.Gateway); gateway == nil {
return nil, fmt.Errorf("could not parse %q as IPv6 gateway", iface.IPv6.Gateway)
}
routes = append(routes, route{
destination: net.IPNet{
IP: net.IPv6zero,
Mask: net.IPMask(net.IPv6zero),
},
gateway: gateway,
})
}
}
hwaddr, err := net.ParseMAC(iface.MAC)
if err != nil {
return nil, err
}
if nameservers == nil {
nameservers = []net.IP{}
}
return &logicalInterface{
hwaddr: hwaddr,
config: configMethodStatic{
addresses: addresses,
nameservers: nameservers,
routes: routes,
},
}, nil
}

367
network/digitalocean_test.go Normal file
View File

@ -0,0 +1,367 @@
package network
import (
"errors"
"net"
"reflect"
"testing"
"github.com/coreos/coreos-cloudinit/datasource/metadata/digitalocean"
)
func TestParseNameservers(t *testing.T) {
for _, tt := range []struct {
dns digitalocean.DNS
nss []net.IP
err error
}{
{
dns: digitalocean.DNS{},
nss: []net.IP{},
},
{
dns: digitalocean.DNS{[]string{"1.2.3.4"}},
nss: []net.IP{net.ParseIP("1.2.3.4")},
},
{
dns: digitalocean.DNS{[]string{"bad"}},
err: errors.New("could not parse \"bad\" as nameserver IP address"),
},
} {
nss, err := parseNameservers(tt.dns)
if !errorsEqual(tt.err, err) {
t.Fatalf("bad error (%+v): want %q, got %q", tt.dns, tt.err, err)
}
if !reflect.DeepEqual(tt.nss, nss) {
t.Fatalf("bad nameservers (%+v): want %#v, got %#v", tt.dns, tt.nss, nss)
}
}
}
func TestParseInterface(t *testing.T) {
for _, tt := range []struct {
cfg digitalocean.Interface
nss []net.IP
useRoute bool
iface *logicalInterface
err error
}{
{
cfg: digitalocean.Interface{
MAC: "bad",
},
err: errors.New("invalid MAC address: bad"),
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
},
nss: []net.IP{},
iface: &logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{},
nameservers: []net.IP{},
routes: []route{},
},
},
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
},
useRoute: true,
nss: []net.IP{net.ParseIP("1.2.3.4")},
iface: &logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{},
nameservers: []net.IP{net.ParseIP("1.2.3.4")},
routes: []route{},
},
},
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
IPv4: &digitalocean.Address{
IPAddress: "bad",
Netmask: "255.255.0.0",
},
},
nss: []net.IP{},
err: errors.New("could not parse \"bad\" as IPv4 address"),
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
IPv4: &digitalocean.Address{
IPAddress: "1.2.3.4",
Netmask: "bad",
},
},
nss: []net.IP{},
err: errors.New("could not parse \"bad\" as IPv4 mask"),
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
IPv4: &digitalocean.Address{
IPAddress: "1.2.3.4",
Netmask: "255.255.0.0",
Gateway: "ignoreme",
},
},
nss: []net.IP{},
iface: &logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{net.IPNet{net.ParseIP("1.2.3.4"), net.IPMask(net.ParseIP("255.255.0.0"))}},
nameservers: []net.IP{},
routes: []route{},
},
},
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
IPv4: &digitalocean.Address{
IPAddress: "1.2.3.4",
Netmask: "255.255.0.0",
Gateway: "bad",
},
},
useRoute: true,
nss: []net.IP{},
err: errors.New("could not parse \"bad\" as IPv4 gateway"),
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
IPv4: &digitalocean.Address{
IPAddress: "1.2.3.4",
Netmask: "255.255.0.0",
Gateway: "5.6.7.8",
},
},
useRoute: true,
nss: []net.IP{},
iface: &logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{net.IPNet{net.ParseIP("1.2.3.4"), net.IPMask(net.ParseIP("255.255.0.0"))}},
nameservers: []net.IP{},
routes: []route{route{net.IPNet{net.IPv4zero, net.IPMask(net.IPv4zero)}, net.ParseIP("5.6.7.8")}},
},
},
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
IPv6: &digitalocean.Address{
IPAddress: "bad",
Cidr: 16,
},
},
nss: []net.IP{},
err: errors.New("could not parse \"bad\" as IPv6 address"),
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
IPv6: &digitalocean.Address{
IPAddress: "fe00::",
Cidr: 16,
Gateway: "ignoreme",
},
},
nss: []net.IP{},
iface: &logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{net.IPNet{net.ParseIP("fe00::"), net.IPMask(net.ParseIP("ffff::"))}},
nameservers: []net.IP{},
routes: []route{},
},
},
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
IPv6: &digitalocean.Address{
IPAddress: "fe00::",
Cidr: 16,
Gateway: "bad",
},
},
useRoute: true,
nss: []net.IP{},
err: errors.New("could not parse \"bad\" as IPv6 gateway"),
},
{
cfg: digitalocean.Interface{
MAC: "01:23:45:67:89:AB",
IPv6: &digitalocean.Address{
IPAddress: "fe00::",
Cidr: 16,
Gateway: "fe00:1234::",
},
},
useRoute: true,
nss: []net.IP{},
iface: &logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{net.IPNet{net.ParseIP("fe00::"), net.IPMask(net.ParseIP("ffff::"))}},
nameservers: []net.IP{},
routes: []route{route{net.IPNet{net.IPv6zero, net.IPMask(net.IPv6zero)}, net.ParseIP("fe00:1234::")}},
},
},
},
} {
iface, err := parseInterface(tt.cfg, tt.nss, tt.useRoute)
if !errorsEqual(tt.err, err) {
t.Fatalf("bad error (%+v): want %q, got %q", tt.cfg, tt.err, err)
}
if !reflect.DeepEqual(tt.iface, iface) {
t.Fatalf("bad interface (%+v): want %#v, got %#v", tt.cfg, tt.iface, iface)
}
}
}
func TestParseInterfaces(t *testing.T) {
for _, tt := range []struct {
cfg digitalocean.Interfaces
nss []net.IP
ifaces []InterfaceGenerator
err error
}{
{
ifaces: []InterfaceGenerator{},
},
{
cfg: digitalocean.Interfaces{
Public: []digitalocean.Interface{{MAC: "01:23:45:67:89:AB"}},
},
ifaces: []InterfaceGenerator{
&physicalInterface{logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{},
nameservers: []net.IP{},
routes: []route{},
},
}},
},
},
{
cfg: digitalocean.Interfaces{
Private: []digitalocean.Interface{{MAC: "01:23:45:67:89:AB"}},
},
ifaces: []InterfaceGenerator{
&physicalInterface{logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{},
nameservers: []net.IP{},
routes: []route{},
},
}},
},
},
{
cfg: digitalocean.Interfaces{
Public: []digitalocean.Interface{{MAC: "01:23:45:67:89:AB"}},
},
nss: []net.IP{net.ParseIP("1.2.3.4")},
ifaces: []InterfaceGenerator{
&physicalInterface{logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{},
nameservers: []net.IP{net.ParseIP("1.2.3.4")},
routes: []route{},
},
}},
},
},
{
cfg: digitalocean.Interfaces{
Private: []digitalocean.Interface{{MAC: "01:23:45:67:89:AB"}},
},
nss: []net.IP{net.ParseIP("1.2.3.4")},
ifaces: []InterfaceGenerator{
&physicalInterface{logicalInterface{
hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}),
config: configMethodStatic{
addresses: []net.IPNet{},
nameservers: []net.IP{},
routes: []route{},
},
}},
},
},
{
cfg: digitalocean.Interfaces{
Public: []digitalocean.Interface{{MAC: "bad"}},
},
err: errors.New("invalid MAC address: bad"),
},
{
cfg: digitalocean.Interfaces{
Private: []digitalocean.Interface{{MAC: "bad"}},
},
err: errors.New("invalid MAC address: bad"),
},
} {
ifaces, err := parseInterfaces(tt.cfg, tt.nss)
if !errorsEqual(tt.err, err) {
t.Fatalf("bad error (%+v): want %q, got %q", tt.cfg, tt.err, err)
}
if !reflect.DeepEqual(tt.ifaces, ifaces) {
t.Fatalf("bad interfaces (%+v): want %#v, got %#v", tt.cfg, tt.ifaces, ifaces)
}
}
}
func TestProcessDigitalOceanNetconf(t *testing.T) {
for _, tt := range []struct {
cfg string
ifaces []InterfaceGenerator
err error
}{
{
cfg: ``,
},
{
cfg: `{"dns":{"nameservers":["bad"]}}`,
err: errors.New("could not parse \"bad\" as nameserver IP address"),
},
{
cfg: `{"interfaces":{"public":[{"ipv4":{"ip_address":"bad"}}]}}`,
err: errors.New("could not parse \"bad\" as IPv4 address"),
},
{
cfg: `{}`,
ifaces: []InterfaceGenerator{},
},
} {
ifaces, err := ProcessDigitalOceanNetconf(tt.cfg)
if !errorsEqual(tt.err, err) {
t.Fatalf("bad error (%q): want %q, got %q", tt.cfg, tt.err, err)
}
if !reflect.DeepEqual(tt.ifaces, ifaces) {
t.Fatalf("bad interfaces (%q): want %#v, got %#v", tt.cfg, tt.ifaces, ifaces)
}
}
}
func errorsEqual(a, b error) bool {
if a == nil && b == nil {
return true
}
if (a != nil && b == nil) || (a == nil && b != nil) {
return false
}
return (a.Error() == b.Error())
}

6
network/interface.go
View File

@ -82,7 +82,11 @@ func (i *logicalInterface) Netdev() string {
}
func (i *logicalInterface) Filename() string {
return fmt.Sprintf("%02x-%s", i.configDepth, i.name)
name := i.name
if name == "" {
name = i.hwaddr.String()
}
return fmt.Sprintf("%02x-%s", i.configDepth, name)
}
func (i *logicalInterface) Children() []networkInterface {

2
network/interface_test.go
View File

@ -344,6 +344,8 @@ func TestFilename(t *testing.T) {
{logicalInterface{name: "iface", configDepth: 9}, "09-iface"},
{logicalInterface{name: "iface", configDepth: 10}, "0a-iface"},
{logicalInterface{name: "iface", configDepth: 53}, "35-iface"},
{logicalInterface{hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}), configDepth: 1}, "01-01:23:45:67:89:ab"},
{logicalInterface{name: "iface", hwaddr: net.HardwareAddr([]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xab}), configDepth: 1}, "01-iface"},
} {
if tt.i.Filename() != tt.f {
t.Fatalf("bad filename (%q): got %q, want %q", tt.i, tt.i.Filename(), tt.f)

1
test
View File

@ -20,6 +20,7 @@ declare -a TESTPKGS=(initialize
datasource/file
datasource/metadata
datasource/metadata/cloudsigma
datasource/metadata/digitalocean
datasource/metadata/ec2
datasource/proc_cmdline
datasource/url