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Integrate CLI plugins into docker info

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Fairly straight forward. It became necessary to wrap `Plugin.Err` with a type
which implements `encoding.MarshalText` in order to have that field rendered
properly in the `docker info -f '{{json}}'` output.

Since I changed the type somewhat I also added a unit test for `formatInfo`.

Signed-off-by: Ian Campbell <ijc@docker.com>
This commit is contained in:
Ian Campbell
2018-12-19 14:49:20 +00:00
parent 0ab8ec0e4c
commit 1c576e9043
15 changed files with 210 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
cli/command/system/info.go
View File

@ -8,6 +8,7 @@ import (
"strings"
"github.com/docker/cli/cli"
pluginmanager "github.com/docker/cli/cli-plugins/manager"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/debug"
"github.com/docker/cli/templates"
@ -23,6 +24,7 @@ type infoOptions struct {
type clientInfo struct {
Debug bool
Plugins []pluginmanager.Plugin
Warnings []string
}
@ -47,7 +49,7 @@ func NewInfoCommand(dockerCli command.Cli) *cobra.Command {
Short: "Display system-wide information",
Args: cli.NoArgs,
RunE: func(cmd *cobra.Command, args []string) error {
return runInfo(dockerCli, &opts)
return runInfo(cmd, dockerCli, &opts)
},
}
@ -58,7 +60,7 @@ func NewInfoCommand(dockerCli command.Cli) *cobra.Command {
return cmd
}
func runInfo(dockerCli command.Cli, opts *infoOptions) error {
func runInfo(cmd *cobra.Command, dockerCli command.Cli, opts *infoOptions) error {
var info info
ctx := context.Background()
@ -71,6 +73,11 @@ func runInfo(dockerCli command.Cli, opts *infoOptions) error {
info.ClientInfo = &clientInfo{
Debug: debug.IsEnabled(),
}
if plugins, err := pluginmanager.ListPlugins(dockerCli, cmd.Root()); err == nil {
info.ClientInfo.Plugins = plugins
} else {
info.ClientErrors = append(info.ClientErrors, err.Error())
}
if opts.format == "" {
return prettyPrintInfo(dockerCli, info)
@ -109,6 +116,17 @@ func prettyPrintInfo(dockerCli command.Cli, info info) error {
func prettyPrintClientInfo(dockerCli command.Cli, info clientInfo) error {
fmt.Fprintln(dockerCli.Out(), " Debug Mode:", info.Debug)
if len(info.Plugins) > 0 {
fmt.Fprintln(dockerCli.Out(), " Plugins:")
for _, p := range info.Plugins {
if p.Err == nil {
fmt.Fprintf(dockerCli.Out(), " %s: (%s, %s) %s\n", p.Name, p.Version, p.Vendor, p.ShortDescription)
} else {
info.Warnings = append(info.Warnings, fmt.Sprintf("WARNING: Plugin %q is not valid: %s", p.Path, p.Err))
}
}
}
if len(info.Warnings) > 0 {
fmt.Fprintln(dockerCli.Err(), strings.Join(info.Warnings, "\n"))
}
@ -447,6 +465,11 @@ func getBackingFs(info types.Info) string {
}
func formatInfo(dockerCli command.Cli, info info, format string) error {
// Ensure slice/array fields render as `[]` not `null`
if info.ClientInfo != nil && info.ClientInfo.Plugins == nil {
info.ClientInfo.Plugins = make([]pluginmanager.Plugin, 0)
}
tmpl, err := templates.Parse(format)
if err != nil {
return cli.StatusError{StatusCode: 64,

37
cli/command/system/info_test.go
View File

@ -6,6 +6,7 @@ import (
"testing"
"time"
pluginmanager "github.com/docker/cli/cli-plugins/manager"
"github.com/docker/cli/internal/test"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/registry"
@ -192,6 +193,24 @@ PQQDAgNIADBFAiEAo9fTQNM5DP9bHVcTJYfl2Cay1bFu1E+lnpmN+EYJfeACIGKH
},
}
var samplePluginsInfo = []pluginmanager.Plugin{
{
Name: "goodplugin",
Path: "/path/to/docker-goodplugin",
Metadata: pluginmanager.Metadata{
SchemaVersion: "0.1.0",
ShortDescription: "unit test is good",
Vendor: "ACME Corp",
Version: "0.1.0",
},
},
{
Name: "badplugin",
Path: "/path/to/docker-badplugin",
Err: pluginmanager.NewPluginError("something wrong"),
},
}
func TestPrettyPrintInfo(t *testing.T) {
infoWithSwarm := sampleInfoNoSwarm
infoWithSwarm.Swarm = sampleSwarmInfo
@ -228,8 +247,9 @@ func TestPrettyPrintInfo(t *testing.T) {
sampleInfoBadSecurity.SecurityOptions = []string{"foo="}
for _, tc := range []struct {
doc string
dockerInfo info
doc string
dockerInfo info
prettyGolden string
warningsGolden string
jsonGolden string
@ -245,6 +265,19 @@ func TestPrettyPrintInfo(t *testing.T) {
jsonGolden: "docker-info-no-swarm",
},
{
doc: "info with plugins",
dockerInfo: info{
Info: &sampleInfoNoSwarm,
ClientInfo: &clientInfo{
Plugins: samplePluginsInfo,
},
},
prettyGolden: "docker-info-plugins",
jsonGolden: "docker-info-plugins",
warningsGolden: "docker-info-plugins-warnings",
},
{
doc: "info with swarm",
dockerInfo: info{
Info: &infoWithSwarm,

2
cli/command/system/testdata/docker-info-badsec.json.golden vendored
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@ -1 +1 @@
{"ID":"EKHL:QDUU:QZ7U:MKGD:VDXK:S27Q:GIPU:24B7:R7VT:DGN6:QCSF:2UBX","Containers":0,"ContainersRunning":0,"ContainersPaused":0,"ContainersStopped":0,"Images":0,"Driver":"aufs","DriverStatus":[["Root Dir","/var/lib/docker/aufs"],["Backing Filesystem","extfs"],["Dirs","0"],["Dirperm1 Supported","true"]],"SystemStatus":null,"Plugins":{"Volume":["local"],"Network":["bridge","host","macvlan","null","overlay"],"Authorization":null,"Log":["awslogs","fluentd","gcplogs","gelf","journald","json-file","logentries","splunk","syslog"]},"MemoryLimit":true,"SwapLimit":true,"KernelMemory":true,"KernelMemoryTCP":false,"CpuCfsPeriod":true,"CpuCfsQuota":true,"CPUShares":true,"CPUSet":true,"IPv4Forwarding":true,"BridgeNfIptables":true,"BridgeNfIp6tables":true,"Debug":true,"NFd":33,"OomKillDisable":true,"NGoroutines":135,"SystemTime":"2017-08-24T17:44:34.077811894Z","LoggingDriver":"json-file","CgroupDriver":"cgroupfs","NEventsListener":0,"KernelVersion":"4.4.0-87-generic","OperatingSystem":"Ubuntu 16.04.3 LTS","OSType":"linux","Architecture":"x86_64","IndexServerAddress":"https://index.docker.io/v1/","RegistryConfig":{"AllowNondistributableArtifactsCIDRs":null,"AllowNondistributableArtifactsHostnames":null,"InsecureRegistryCIDRs":["127.0.0.0/8"],"IndexConfigs":{"docker.io":{"Name":"docker.io","Mirrors":null,"Secure":true,"Official":true}},"Mirrors":null},"NCPU":2,"MemTotal":2097356800,"GenericResources":null,"DockerRootDir":"/var/lib/docker","HttpProxy":"","HttpsProxy":"","NoProxy":"","Name":"system-sample","Labels":["provider=digitalocean"],"ExperimentalBuild":false,"ServerVersion":"17.06.1-ce","ClusterStore":"","ClusterAdvertise":"","Runtimes":{"runc":{"path":"docker-runc"}},"DefaultRuntime":"runc","Swarm":{"NodeID":"","NodeAddr":"","LocalNodeState":"inactive","ControlAvailable":false,"Error":"","RemoteManagers":null},"LiveRestoreEnabled":false,"Isolation":"","InitBinary":"docker-init","ContainerdCommit":{"ID":"6e23458c129b551d5c9871e5174f6b1b7f6d1170","Expected":"6e23458c129b551d5c9871e5174f6b1b7f6d1170"},"RuncCommit":{"ID":"810190ceaa507aa2727d7ae6f4790c76ec150bd2","Expected":"810190ceaa507aa2727d7ae6f4790c76ec150bd2"},"InitCommit":{"ID":"949e6fa","Expected":"949e6fa"},"SecurityOptions":["foo="],"Warnings":null,"ServerErrors":["an error happened"],"ClientInfo":{"Debug":false,"Warnings":null}}
{"ID":"EKHL:QDUU:QZ7U:MKGD:VDXK:S27Q:GIPU:24B7:R7VT:DGN6:QCSF:2UBX","Containers":0,"ContainersRunning":0,"ContainersPaused":0,"ContainersStopped":0,"Images":0,"Driver":"aufs","DriverStatus":[["Root Dir","/var/lib/docker/aufs"],["Backing Filesystem","extfs"],["Dirs","0"],["Dirperm1 Supported","true"]],"SystemStatus":null,"Plugins":{"Volume":["local"],"Network":["bridge","host","macvlan","null","overlay"],"Authorization":null,"Log":["awslogs","fluentd","gcplogs","gelf","journald","json-file","logentries","splunk","syslog"]},"MemoryLimit":true,"SwapLimit":true,"KernelMemory":true,"KernelMemoryTCP":false,"CpuCfsPeriod":true,"CpuCfsQuota":true,"CPUShares":true,"CPUSet":true,"IPv4Forwarding":true,"BridgeNfIptables":true,"BridgeNfIp6tables":true,"Debug":true,"NFd":33,"OomKillDisable":true,"NGoroutines":135,"SystemTime":"2017-08-24T17:44:34.077811894Z","LoggingDriver":"json-file","CgroupDriver":"cgroupfs","NEventsListener":0,"KernelVersion":"4.4.0-87-generic","OperatingSystem":"Ubuntu 16.04.3 LTS","OSType":"linux","Architecture":"x86_64","IndexServerAddress":"https://index.docker.io/v1/","RegistryConfig":{"AllowNondistributableArtifactsCIDRs":null,"AllowNondistributableArtifactsHostnames":null,"InsecureRegistryCIDRs":["127.0.0.0/8"],"IndexConfigs":{"docker.io":{"Name":"docker.io","Mirrors":null,"Secure":true,"Official":true}},"Mirrors":null},"NCPU":2,"MemTotal":2097356800,"GenericResources":null,"DockerRootDir":"/var/lib/docker","HttpProxy":"","HttpsProxy":"","NoProxy":"","Name":"system-sample","Labels":["provider=digitalocean"],"ExperimentalBuild":false,"ServerVersion":"17.06.1-ce","ClusterStore":"","ClusterAdvertise":"","Runtimes":{"runc":{"path":"docker-runc"}},"DefaultRuntime":"runc","Swarm":{"NodeID":"","NodeAddr":"","LocalNodeState":"inactive","ControlAvailable":false,"Error":"","RemoteManagers":null},"LiveRestoreEnabled":false,"Isolation":"","InitBinary":"docker-init","ContainerdCommit":{"ID":"6e23458c129b551d5c9871e5174f6b1b7f6d1170","Expected":"6e23458c129b551d5c9871e5174f6b1b7f6d1170"},"RuncCommit":{"ID":"810190ceaa507aa2727d7ae6f4790c76ec150bd2","Expected":"810190ceaa507aa2727d7ae6f4790c76ec150bd2"},"InitCommit":{"ID":"949e6fa","Expected":"949e6fa"},"SecurityOptions":["foo="],"Warnings":null,"ServerErrors":["an error happened"],"ClientInfo":{"Debug":false,"Plugins":[],"Warnings":null}}

2
cli/command/system/testdata/docker-info-daemon-warnings.json.golden vendored
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@ -1 +1 @@
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2
cli/command/system/testdata/docker-info-legacy-warnings.json.golden vendored
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@ -1 +1 @@
{"ID":"EKHL:QDUU:QZ7U:MKGD:VDXK:S27Q:GIPU:24B7:R7VT:DGN6:QCSF:2UBX","Containers":0,"ContainersRunning":0,"ContainersPaused":0,"ContainersStopped":0,"Images":0,"Driver":"aufs","DriverStatus":[["Root Dir","/var/lib/docker/aufs"],["Backing Filesystem","extfs"],["Dirs","0"],["Dirperm1 Supported","true"]],"SystemStatus":null,"Plugins":{"Volume":["local"],"Network":["bridge","host","macvlan","null","overlay"],"Authorization":null,"Log":["awslogs","fluentd","gcplogs","gelf","journald","json-file","logentries","splunk","syslog"]},"MemoryLimit":false,"SwapLimit":false,"KernelMemory":false,"KernelMemoryTCP":false,"CpuCfsPeriod":false,"CpuCfsQuota":false,"CPUShares":false,"CPUSet":false,"IPv4Forwarding":false,"BridgeNfIptables":false,"BridgeNfIp6tables":false,"Debug":true,"NFd":33,"OomKillDisable":false,"NGoroutines":135,"SystemTime":"2017-08-24T17:44:34.077811894Z","LoggingDriver":"json-file","CgroupDriver":"cgroupfs","NEventsListener":0,"KernelVersion":"4.4.0-87-generic","OperatingSystem":"Ubuntu 16.04.3 LTS","OSType":"linux","Architecture":"x86_64","IndexServerAddress":"https://index.docker.io/v1/","RegistryConfig":{"AllowNondistributableArtifactsCIDRs":null,"AllowNondistributableArtifactsHostnames":null,"InsecureRegistryCIDRs":["127.0.0.0/8"],"IndexConfigs":{"docker.io":{"Name":"docker.io","Mirrors":null,"Secure":true,"Official":true}},"Mirrors":null},"NCPU":2,"MemTotal":2097356800,"GenericResources":null,"DockerRootDir":"/var/lib/docker","HttpProxy":"","HttpsProxy":"","NoProxy":"","Name":"system-sample","Labels":["provider=digitalocean"],"ExperimentalBuild":false,"ServerVersion":"17.06.1-ce","ClusterStore":"","ClusterAdvertise":"","Runtimes":{"runc":{"path":"docker-runc"}},"DefaultRuntime":"runc","Swarm":{"NodeID":"","NodeAddr":"","LocalNodeState":"inactive","ControlAvailable":false,"Error":"","RemoteManagers":null},"LiveRestoreEnabled":false,"Isolation":"","InitBinary":"docker-init","ContainerdCommit":{"ID":"6e23458c129b551d5c9871e5174f6b1b7f6d1170","Expected":"6e23458c129b551d5c9871e5174f6b1b7f6d1170"},"RuncCommit":{"ID":"810190ceaa507aa2727d7ae6f4790c76ec150bd2","Expected":"810190ceaa507aa2727d7ae6f4790c76ec150bd2"},"InitCommit":{"ID":"949e6fa","Expected":"949e6fa"},"SecurityOptions":["name=apparmor","name=seccomp,profile=default"],"Warnings":null,"ClientInfo":{"Debug":true,"Warnings":null}}
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2
cli/command/system/testdata/docker-info-no-swarm.json.golden vendored
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@ -1 +1 @@
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1
cli/command/system/testdata/docker-info-plugins-warnings.golden vendored Normal file
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WARNING: Plugin "/path/to/docker-badplugin" is not valid: something wrong

56
cli/command/system/testdata/docker-info-plugins.golden vendored Normal file
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Client:
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Labels:
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1
cli/command/system/testdata/docker-info-plugins.json.golden vendored Normal file
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2
cli/command/system/testdata/docker-info-with-swarm.json.golden vendored
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