system/info: Show discovered devices

Signed-off-by: Paweł Gronowski <pawel.gronowski@docker.com>

cli/command/system/info.go

@@ -281,6 +281,13 @@ func prettyPrintServerInfo(streams command.Streams, info *dockerInfo) []error {
 		}
 	}
 
+	if len(info.DiscoveredDevices) > 0 {
+		fprintln(output, " Discovered Devices:")
+		for _, device := range info.DiscoveredDevices {
+			fprintf(output, "  %s: %s\n", device.Source, device.ID)
+		}
+	}
+
 	fprintln(output, " Swarm:", info.Swarm.LocalNodeState)
 	printSwarmInfo(output, *info.Info)
 

cli/command/system/info_test.go

@@ -260,6 +260,12 @@ func TestPrettyPrintInfo(t *testing.T) {
 	sampleInfoLabelsEmpty := sampleInfoNoSwarm
 	sampleInfoLabelsEmpty.Labels = []string{}
 
+	sampleInfoWithDevices := sampleInfoNoSwarm
+	sampleInfoWithDevices.DiscoveredDevices = []system.DeviceInfo{
+		{Source: "cdi", ID: "com.example.device1"},
+		{Source: "cdi", ID: "nvidia.com/gpu=gpu0"},
+	}
+
 	for _, tc := range []struct {
 		doc        string
 		dockerInfo dockerInfo
@@ -366,6 +372,14 @@ func TestPrettyPrintInfo(t *testing.T) {
 			warningsGolden: "docker-info-badsec-stderr",
 			expectedError:  "errors pretty printing info",
 		},
+		{
+			doc: "info with devices",
+			dockerInfo: dockerInfo{
+				Info: &sampleInfoWithDevices,
+			},
+			prettyGolden: "docker-info-with-devices",
+			jsonGolden:   "docker-info-with-devices",
+		},
 	} {
 		t.Run(tc.doc, func(t *testing.T) {
 			cli := test.NewFakeCli(&fakeClient{})

cli/command/system/testdata/docker-info-with-devices.golden

@@ -0,0 +1,60 @@
+Client:
+
+Server:
+ Containers: 0
+  Running: 0
+  Paused: 0
+  Stopped: 0
+ Images: 0
+ Server Version: 17.06.1-ce
+ Storage Driver: overlay2
+  Backing Filesystem: extfs
+  Supports d_type: true
+  Using metacopy: false
+  Native Overlay Diff: true
+ Logging Driver: json-file
+ Cgroup Driver: cgroupfs
+ Plugins:
+  Volume: local
+  Network: bridge host macvlan null overlay
+  Log: awslogs fluentd gcplogs gelf journald json-file splunk syslog
+ CDI spec directories:
+  /etc/cdi
+  /var/run/cdi
+ Discovered Devices:
+  cdi: com.example.device1
+  cdi: nvidia.com/gpu=gpu0
+ Swarm: inactive
+ Runtimes: runc
+ Default Runtime: runc
+ Init Binary: docker-init
+ containerd version: 6e23458c129b551d5c9871e5174f6b1b7f6d1170
+ runc version: 810190ceaa507aa2727d7ae6f4790c76ec150bd2
+ init version: 949e6fa
+ Security Options:
+  apparmor
+  seccomp
+   Profile: default
+ Kernel Version: 4.4.0-87-generic
+ Operating System: Ubuntu 16.04.3 LTS
+ OSType: linux
+ Architecture: x86_64
+ CPUs: 2
+ 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: true
+  File Descriptors: 33
+  Goroutines: 135
+  System Time: 2017-08-24T17:44:34.077811894Z
+  EventsListeners: 0
+ Labels:
+  provider=digitalocean
+ Experimental: false
+ Insecure Registries:
+  127.0.0.0/8
+ Live Restore Enabled: false
+ Default Address Pools:
+   Base: 10.123.0.0/16, Size: 24
+

cli/command/system/testdata/docker-info-with-devices.json.golden

@@ -0,0 +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":"overlay2","DriverStatus":[["Backing Filesystem","extfs"],["Supports d_type","true"],["Using metacopy","false"],["Native Overlay Diff","true"]],"Plugins":{"Volume":["local"],"Network":["bridge","host","macvlan","null","overlay"],"Authorization":null,"Log":["awslogs","fluentd","gcplogs","gelf","journald","json-file","splunk","syslog"]},"MemoryLimit":true,"SwapLimit":true,"KernelMemory":true,"CpuCfsPeriod":true,"CpuCfsQuota":true,"CPUShares":true,"CPUSet":true,"PidsLimit":false,"IPv4Forwarding":true,"BridgeNfIptables":false,"BridgeNfIp6tables":false,"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","OSVersion":"","OSType":"linux","Architecture":"x86_64","IndexServerAddress":"https://index.docker.io/v1/","RegistryConfig":{"IndexConfigs":{"docker.io":{"Mirrors":null,"Name":"docker.io","Official":true,"Secure":true}},"InsecureRegistryCIDRs":["127.0.0.0/8"],"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","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"],"DefaultAddressPools":[{"Base":"10.123.0.0/16","Size":24}],"CDISpecDirs":["/etc/cdi","/var/run/cdi"],"DiscoveredDevices":[{"Source":"cdi","ID":"com.example.device1"},{"Source":"cdi","ID":"nvidia.com/gpu=gpu0"}],"Warnings":null}