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Separate client and daemon info in docker system info

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Right now the only client side info we have is whether debug is enabled, but we
expect more in the future.

We also preemptively prepare for the possibility of multiple errors when
gathering both daemon and client info.

Signed-off-by: Ian Campbell <ijc@docker.com>
This commit is contained in:
Ian Campbell
2019-01-23 13:34:43 +00:00
parent 7913fb6a5e
commit 62ed1c0c5b
12 changed files with 177 additions and 41 deletions
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88
cli/command/system/info.go
View File

@ -21,6 +21,23 @@ type infoOptions struct {
format string
}
type clientInfo struct {
Debug bool
Warnings []string
}
type info struct {
// This field should/could be ServerInfo but is anonymous to
// preserve backwards compatibility in the JSON rendering
// which has ServerInfo immediately within the top-level
// object.
*types.Info `json:",omitempty"`
ServerErrors []string `json:",omitempty"`
ClientInfo *clientInfo `json:",omitempty"`
ClientErrors []string `json:",omitempty"`
}
// NewInfoCommand creates a new cobra.Command for `docker info`
func NewInfoCommand(dockerCli command.Cli) *cobra.Command {
var opts infoOptions
@ -42,19 +59,67 @@ func NewInfoCommand(dockerCli command.Cli) *cobra.Command {
}
func runInfo(dockerCli command.Cli, opts *infoOptions) error {
var info info
ctx := context.Background()
info, err := dockerCli.Client().Info(ctx)
if err != nil {
return err
if dinfo, err := dockerCli.Client().Info(ctx); err == nil {
info.Info = &dinfo
} else {
info.ServerErrors = append(info.ServerErrors, err.Error())
}
info.ClientInfo = &clientInfo{
Debug: debug.IsEnabled(),
}
if opts.format == "" {
return prettyPrintInfo(dockerCli, info)
}
return formatInfo(dockerCli, info, opts.format)
}
func prettyPrintInfo(dockerCli command.Cli, info info) error {
fmt.Fprintln(dockerCli.Out(), "Client")
fmt.Fprintln(dockerCli.Out(), "------")
if info.ClientInfo != nil {
if err := prettyPrintClientInfo(dockerCli, *info.ClientInfo); err != nil {
info.ClientErrors = append(info.ClientErrors, err.Error())
}
}
for _, err := range info.ClientErrors {
fmt.Fprintln(dockerCli.Out(), "ERROR:", err)
}
fmt.Fprintln(dockerCli.Out())
fmt.Fprintln(dockerCli.Out(), "Server")
fmt.Fprintln(dockerCli.Out(), "------")
if info.Info != nil {
if err := prettyPrintServerInfo(dockerCli, *info.Info); err != nil {
info.ServerErrors = append(info.ServerErrors, err.Error())
}
}
for _, err := range info.ServerErrors {
fmt.Fprintln(dockerCli.Out(), "ERROR:", err)
}
if len(info.ServerErrors) > 0 || len(info.ClientErrors) > 0 {
return fmt.Errorf("errors pretty printing info")
}
return nil
}
func prettyPrintClientInfo(dockerCli command.Cli, info clientInfo) error {
fmt.Fprintln(dockerCli.Out(), "Debug Mode:", info.Debug)
if len(info.Warnings) > 0 {
fmt.Fprintln(dockerCli.Err(), strings.Join(info.Warnings, "\n"))
}
return nil
}
// nolint: gocyclo
func prettyPrintInfo(dockerCli command.Cli, info types.Info) error {
func prettyPrintServerInfo(dockerCli command.Cli, info types.Info) error {
fmt.Fprintln(dockerCli.Out(), "Containers:", info.Containers)
fmt.Fprintln(dockerCli.Out(), " Running:", info.ContainersRunning)
fmt.Fprintln(dockerCli.Out(), " Paused:", info.ContainersPaused)
@ -149,8 +214,7 @@ func prettyPrintInfo(dockerCli command.Cli, info types.Info) error {
fprintlnNonEmpty(dockerCli.Out(), "Name:", info.Name)
fprintlnNonEmpty(dockerCli.Out(), "ID:", info.ID)
fmt.Fprintln(dockerCli.Out(), "Docker Root Dir:", info.DockerRootDir)
fmt.Fprintln(dockerCli.Out(), "Debug Mode (client):", debug.IsEnabled())
fmt.Fprintln(dockerCli.Out(), "Debug Mode (server):", info.Debug)
fmt.Fprintln(dockerCli.Out(), "Debug Mode:", info.Debug)
if info.Debug {
fmt.Fprintln(dockerCli.Out(), " File Descriptors:", info.NFd)
@ -209,7 +273,7 @@ func prettyPrintInfo(dockerCli command.Cli, info types.Info) error {
}
fmt.Fprint(dockerCli.Out(), "\n")
printWarnings(dockerCli, info)
printServerWarnings(dockerCli, info)
return nil
}
@ -283,22 +347,22 @@ func printSwarmInfo(dockerCli command.Cli, info types.Info) {
}
}
func printWarnings(dockerCli command.Cli, info types.Info) {
func printServerWarnings(dockerCli command.Cli, info types.Info) {
if len(info.Warnings) > 0 {
fmt.Fprintln(dockerCli.Err(), strings.Join(info.Warnings, "\n"))
return
}
// daemon didn't return warnings. Fallback to old behavior
printStorageDriverWarnings(dockerCli, info)
printWarningsLegacy(dockerCli, info)
printServerWarningsLegacy(dockerCli, info)
}
// printWarningsLegacy generates warnings based on information returned by the daemon.
// printServerWarningsLegacy generates warnings based on information returned by the daemon.
// DEPRECATED: warnings are now generated by the daemon, and returned in
// info.Warnings. This function is used to provide backward compatibility with
// daemons that do not provide these warnings. No new warnings should be added
// here.
func printWarningsLegacy(dockerCli command.Cli, info types.Info) {
func printServerWarningsLegacy(dockerCli command.Cli, info types.Info) {
if info.OSType == "windows" {
return
}
@ -382,7 +446,7 @@ func getBackingFs(info types.Info) string {
return ""
}
func formatInfo(dockerCli command.Cli, info types.Info, format string) error {
func formatInfo(dockerCli command.Cli, info info, format string) error {
tmpl, err := templates.Parse(format)
if err != nil {
return cli.StatusError{StatusCode: 64,

54
cli/command/system/info_test.go
View File

@ -226,41 +226,69 @@ func TestPrettyPrintInfo(t *testing.T) {
for _, tc := range []struct {
doc string
dockerInfo types.Info
dockerInfo info
prettyGolden string
warningsGolden string
jsonGolden string
expectedError string
}{
{
doc: "info without swarm",
dockerInfo: sampleInfoNoSwarm,
doc: "info without swarm",
dockerInfo: info{
Info: &sampleInfoNoSwarm,
ClientInfo: &clientInfo{Debug: true},
},
prettyGolden: "docker-info-no-swarm",
jsonGolden: "docker-info-no-swarm",
},
{
doc: "info with swarm",
dockerInfo: infoWithSwarm,
doc: "info with swarm",
dockerInfo: info{
Info: &infoWithSwarm,
ClientInfo: &clientInfo{Debug: false},
},
prettyGolden: "docker-info-with-swarm",
jsonGolden: "docker-info-with-swarm",
},
{
doc: "info with legacy warnings",
dockerInfo: infoWithWarningsLinux,
doc: "info with legacy warnings",
dockerInfo: info{
Info: &infoWithWarningsLinux,
ClientInfo: &clientInfo{Debug: true},
},
prettyGolden: "docker-info-no-swarm",
warningsGolden: "docker-info-warnings",
jsonGolden: "docker-info-legacy-warnings",
},
{
doc: "info with daemon warnings",
dockerInfo: sampleInfoDaemonWarnings,
doc: "info with daemon warnings",
dockerInfo: info{
Info: &sampleInfoDaemonWarnings,
ClientInfo: &clientInfo{Debug: true},
},
prettyGolden: "docker-info-no-swarm",
warningsGolden: "docker-info-warnings",
jsonGolden: "docker-info-daemon-warnings",
},
{
doc: "errors for both",
dockerInfo: info{
ServerErrors: []string{"a server error occurred"},
ClientErrors: []string{"a client error occurred"},
},
prettyGolden: "docker-info-errors",
jsonGolden: "docker-info-errors",
expectedError: "errors pretty printing info",
},
} {
t.Run(tc.doc, func(t *testing.T) {
cli := test.NewFakeCli(&fakeClient{})
assert.NilError(t, prettyPrintInfo(cli, tc.dockerInfo))
err := prettyPrintInfo(cli, tc.dockerInfo)
if tc.expectedError == "" {
assert.NilError(t, err)
} else {
assert.Error(t, err, tc.expectedError)
}
golden.Assert(t, cli.OutBuffer().String(), tc.prettyGolden+".golden")
if tc.warningsGolden != "" {
golden.Assert(t, cli.ErrBuffer().String(), tc.warningsGolden+".golden")
@ -296,7 +324,11 @@ func TestFormatInfo(t *testing.T) {
} {
t.Run(tc.doc, func(t *testing.T) {
cli := test.NewFakeCli(&fakeClient{})
err := formatInfo(cli, sampleInfoNoSwarm, tc.template)
info := info{
Info: &sampleInfoNoSwarm,
ClientInfo: &clientInfo{Debug: true},
}
err := formatInfo(cli, info, tc.template)
if tc.expectedOut != "" {
assert.NilError(t, err)
assert.Equal(t, cli.OutBuffer().String(), tc.expectedOut)

2
cli/command/system/testdata/docker-info-daemon-warnings.json.golden vendored
View File

@ -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":["name=apparmor","name=seccomp,profile=default"],"Warnings":["WARNING: No memory limit support","WARNING: No swap limit support","WARNING: No kernel memory limit support","WARNING: No oom kill disable support","WARNING: No cpu cfs quota support","WARNING: No cpu cfs period support","WARNING: No cpu shares support","WARNING: No cpuset support","WARNING: IPv4 forwarding is disabled","WARNING: bridge-nf-call-iptables is disabled","WARNING: bridge-nf-call-ip6tables is disabled"]}
{"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":["name=apparmor","name=seccomp,profile=default"],"Warnings":["WARNING: No memory limit support","WARNING: No swap limit support","WARNING: No kernel memory limit support","WARNING: No oom kill disable support","WARNING: No cpu cfs quota support","WARNING: No cpu cfs period support","WARNING: No cpu shares support","WARNING: No cpuset support","WARNING: IPv4 forwarding is disabled","WARNING: bridge-nf-call-iptables is disabled","WARNING: bridge-nf-call-ip6tables is disabled"],"ClientInfo":{"Debug":true,"Warnings":null}}

7
cli/command/system/testdata/docker-info-errors.golden vendored Normal file
View File

@ -0,0 +1,7 @@
Client
------
ERROR: a client error occurred
Server
------
ERROR: a server error occurred

1
cli/command/system/testdata/docker-info-errors.json.golden vendored Normal file
View File

@ -0,0 +1 @@
{"ServerErrors":["a server error occurred"],"ClientErrors":["a client error occurred"]}

2
cli/command/system/testdata/docker-info-legacy-warnings.json.golden vendored
View File

@ -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}
{"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}}

9
cli/command/system/testdata/docker-info-no-swarm.golden vendored
View File

@ -1,3 +1,9 @@
Client
------
Debug Mode: true
Server
------
Containers: 0
Running: 0
Paused: 0
@ -35,8 +41,7 @@ Total Memory: 1.953GiB
Name: system-sample
ID: EKHL:QDUU:QZ7U:MKGD:VDXK:S27Q:GIPU:24B7:R7VT:DGN6:QCSF:2UBX
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): true
Debug Mode: true
File Descriptors: 33
Goroutines: 135
System Time: 2017-08-24T17:44:34.077811894Z

2
cli/command/system/testdata/docker-info-no-swarm.json.golden vendored
View File

@ -1 +1 @@
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9
cli/command/system/testdata/docker-info-with-swarm.golden vendored
View File

@ -1,3 +1,9 @@
Client
------
Debug Mode: false
Server
------
Containers: 0
Running: 0
Paused: 0
@ -57,8 +63,7 @@ Total Memory: 1.953GiB
Name: system-sample
ID: EKHL:QDUU:QZ7U:MKGD:VDXK:S27Q:GIPU:24B7:R7VT:DGN6:QCSF:2UBX
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): true
Debug Mode: true
File Descriptors: 33
Goroutines: 135
System Time: 2017-08-24T17:44:34.077811894Z

2
cli/command/system/testdata/docker-info-with-swarm.json.golden vendored
View File

@ -1 +1 @@
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