Include whether the managers in the swarm are autolocked as part of `docker info`.

Signed-off-by: Ying Li <ying.li@docker.com>

cli/command/system/info.go

@@ -54,7 +54,7 @@ func runInfo(dockerCli *command.DockerCli, opts *infoOptions) error {
 }
 
 // nolint: gocyclo
-func prettyPrintInfo(dockerCli *command.DockerCli, info types.Info) error {
+func prettyPrintInfo(dockerCli command.Cli, info types.Info) error {
 	fmt.Fprintf(dockerCli.Out(), "Containers: %d\n", info.Containers)
 	fmt.Fprintf(dockerCli.Out(), " Running: %d\n", info.ContainersRunning)
 	fmt.Fprintf(dockerCli.Out(), " Paused: %d\n", info.ContainersPaused)
@@ -76,7 +76,7 @@ func prettyPrintInfo(dockerCli *command.DockerCli, info types.Info) error {
 	fprintfIfNotEmpty(dockerCli.Out(), "Logging Driver: %s\n", info.LoggingDriver)
 	fprintfIfNotEmpty(dockerCli.Out(), "Cgroup Driver: %s\n", info.CgroupDriver)
 
-	fmt.Fprintf(dockerCli.Out(), "Plugins: \n")
+	fmt.Fprintf(dockerCli.Out(), "Plugins:\n")
 	fmt.Fprintf(dockerCli.Out(), " Volume:")
 	fmt.Fprintf(dockerCli.Out(), " %s", strings.Join(info.Plugins.Volume, " "))
 	fmt.Fprintf(dockerCli.Out(), "\n")
@@ -130,6 +130,7 @@ func prettyPrintInfo(dockerCli *command.DockerCli, info types.Info) error {
 					fmt.Fprintf(dockerCli.Out(), "    %s: %s\n", entry.Protocol, entry.URL)
 				}
 			}
+			fmt.Fprintf(dockerCli.Out(), " Autolock Managers: %v\n", info.Swarm.Cluster.Spec.EncryptionConfig.AutoLockManagers)
 			fmt.Fprintf(dockerCli.Out(), " Root Rotation In Progress: %v\n", info.Swarm.Cluster.RootRotationInProgress)
 		}
 		fmt.Fprintf(dockerCli.Out(), " Node Address: %s\n", info.Swarm.NodeAddr)
@@ -325,7 +326,7 @@ func prettyPrintInfo(dockerCli *command.DockerCli, info types.Info) error {
 	return nil
 }
 
-func printStorageDriverWarnings(dockerCli *command.DockerCli, info types.Info) {
+func printStorageDriverWarnings(dockerCli command.Cli, info types.Info) {
 	if info.DriverStatus == nil {
 		return
 	}

cli/command/system/info_test.go

@@ -0,0 +1,237 @@
+package system
+
+import (
+	"encoding/base64"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/docker/cli/internal/test"
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/api/types/registry"
+	"github.com/docker/docker/api/types/swarm"
+	"github.com/gotestyourself/gotestyourself/golden"
+	"github.com/stretchr/testify/assert"
+)
+
+// helper function that base64 decodes a string and ignores the error
+func base64Decode(val string) []byte {
+	decoded, _ := base64.StdEncoding.DecodeString(val)
+	return decoded
+}
+
+var sampleInfoNoSwarm = types.Info{
+	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: [][2]string{
+		{"Root Dir", "/var/lib/docker/aufs"},
+		{"Backing Filesystem", "extfs"},
+		{"Dirs", "0"},
+		{"Dirperm1 Supported", "true"},
+	},
+	SystemStatus: nil,
+	Plugins: types.PluginsInfo{
+		Volume:        []string{"local"},
+		Network:       []string{"bridge", "host", "macvlan", "null", "overlay"},
+		Authorization: nil,
+		Log:           []string{"awslogs", "fluentd", "gcplogs", "gelf", "journald", "json-file", "logentries", "splunk", "syslog"},
+	},
+	MemoryLimit:        true,
+	SwapLimit:          true,
+	KernelMemory:       true,
+	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: &registry.ServiceConfig{
+		AllowNondistributableArtifactsCIDRs:     nil,
+		AllowNondistributableArtifactsHostnames: nil,
+		InsecureRegistryCIDRs: []*registry.NetIPNet{
+			{
+				IP:   net.ParseIP("127.0.0.0"),
+				Mask: net.IPv4Mask(255, 0, 0, 0),
+			},
+		},
+		IndexConfigs: map[string]*registry.IndexInfo{
+			"docker.io": {
+				Name:     "docker.io",
+				Mirrors:  nil,
+				Secure:   true,
+				Official: true,
+			},
+		},
+		Mirrors: nil,
+	},
+	NCPU:              2,
+	MemTotal:          2097356800,
+	DockerRootDir:     "/var/lib/docker",
+	HTTPProxy:         "",
+	HTTPSProxy:        "",
+	NoProxy:           "",
+	Name:              "system-sample",
+	Labels:            []string{"provider=digitalocean"},
+	ExperimentalBuild: false,
+	ServerVersion:     "17.06.1-ce",
+	ClusterStore:      "",
+	ClusterAdvertise:  "",
+	Runtimes: map[string]types.Runtime{
+		"runc": {
+			Path: "docker-runc",
+			Args: nil,
+		},
+	},
+	DefaultRuntime:     "runc",
+	Swarm:              swarm.Info{LocalNodeState: "inactive"},
+	LiveRestoreEnabled: false,
+	Isolation:          "",
+	InitBinary:         "docker-init",
+	ContainerdCommit: types.Commit{
+		ID:       "6e23458c129b551d5c9871e5174f6b1b7f6d1170",
+		Expected: "6e23458c129b551d5c9871e5174f6b1b7f6d1170",
+	},
+	RuncCommit: types.Commit{
+		ID:       "810190ceaa507aa2727d7ae6f4790c76ec150bd2",
+		Expected: "810190ceaa507aa2727d7ae6f4790c76ec150bd2",
+	},
+	InitCommit: types.Commit{
+		ID:       "949e6fa",
+		Expected: "949e6fa",
+	},
+	SecurityOptions: []string{"name=apparmor", "name=seccomp,profile=default"},
+}
+
+var sampleSwarmInfo = swarm.Info{
+	NodeID:           "qo2dfdig9mmxqkawulggepdih",
+	NodeAddr:         "165.227.107.89",
+	LocalNodeState:   "active",
+	ControlAvailable: true,
+	Error:            "",
+	RemoteManagers: []swarm.Peer{
+		{
+			NodeID: "qo2dfdig9mmxqkawulggepdih",
+			Addr:   "165.227.107.89:2377",
+		},
+	},
+	Nodes:    1,
+	Managers: 1,
+	Cluster: &swarm.ClusterInfo{
+		ID: "9vs5ygs0gguyyec4iqf2314c0",
+		Meta: swarm.Meta{
+			Version:   swarm.Version{Index: 11},
+			CreatedAt: time.Date(2017, 8, 24, 17, 34, 19, 278062352, time.UTC),
+			UpdatedAt: time.Date(2017, 8, 24, 17, 34, 42, 398815481, time.UTC),
+		},
+		Spec: swarm.Spec{
+			Annotations: swarm.Annotations{
+				Name:   "default",
+				Labels: nil,
+			},
+			Orchestration: swarm.OrchestrationConfig{
+				TaskHistoryRetentionLimit: &[]int64{5}[0],
+			},
+			Raft: swarm.RaftConfig{
+				SnapshotInterval:           10000,
+				KeepOldSnapshots:           &[]uint64{0}[0],
+				LogEntriesForSlowFollowers: 500,
+				ElectionTick:               3,
+				HeartbeatTick:              1,
+			},
+			Dispatcher: swarm.DispatcherConfig{
+				HeartbeatPeriod: 5000000000,
+			},
+			CAConfig: swarm.CAConfig{
+				NodeCertExpiry: 7776000000000000,
+			},
+			TaskDefaults: swarm.TaskDefaults{},
+			EncryptionConfig: swarm.EncryptionConfig{
+				AutoLockManagers: true,
+			},
+		},
+		TLSInfo: swarm.TLSInfo{
+			TrustRoot: `
+-----BEGIN CERTIFICATE-----
+MIIBajCCARCgAwIBAgIUaFCW5xsq8eyiJ+Pmcv3MCflMLnMwCgYIKoZIzj0EAwIw
+EzERMA8GA1UEAxMIc3dhcm0tY2EwHhcNMTcwODI0MTcyOTAwWhcNMzcwODE5MTcy
+OTAwWjATMREwDwYDVQQDEwhzd2FybS1jYTBZMBMGByqGSM49AgEGCCqGSM49AwEH
+A0IABDy7NebyUJyUjWJDBUdnZoV6GBxEGKO4TZPNDwnxDxJcUdLVaB7WGa4/DLrW
+UfsVgh1JGik2VTiLuTMA1tLlNPOjQjBAMA4GA1UdDwEB/wQEAwIBBjAPBgNVHRMB
+Af8EBTADAQH/MB0GA1UdDgQWBBQl16XFtaaXiUAwEuJptJlDjfKskDAKBggqhkjO
+PQQDAgNIADBFAiEAo9fTQNM5DP9bHVcTJYfl2Cay1bFu1E+lnpmN+EYJfeACIGKH
+1pCUkZ+D0IB6CiEZGWSHyLuXPM1rlP+I5KuS7sB8
+-----END CERTIFICATE-----
+`,
+			CertIssuerSubject: base64Decode("MBMxETAPBgNVBAMTCHN3YXJtLWNh"),
+			CertIssuerPublicKey: base64Decode(
+				"MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEPLs15vJQnJSNYkMFR2dmhXoYHEQYo7hNk80PCfEPElxR0tVoHtYZrj8MutZR+xWCHUkaKTZVOIu5MwDW0uU08w=="),
+		},
+		RootRotationInProgress: false,
+	},
+}
+
+func TestPrettyPrintInfo(t *testing.T) {
+	infoWithSwarm := sampleInfoNoSwarm
+	infoWithSwarm.Swarm = sampleSwarmInfo
+
+	infoWithWarningsLinux := sampleInfoNoSwarm
+	infoWithWarningsLinux.MemoryLimit = false
+	infoWithWarningsLinux.SwapLimit = false
+	infoWithWarningsLinux.KernelMemory = false
+	infoWithWarningsLinux.OomKillDisable = false
+	infoWithWarningsLinux.CPUCfsQuota = false
+	infoWithWarningsLinux.CPUCfsPeriod = false
+	infoWithWarningsLinux.CPUShares = false
+	infoWithWarningsLinux.CPUSet = false
+	infoWithWarningsLinux.IPv4Forwarding = false
+	infoWithWarningsLinux.BridgeNfIptables = false
+	infoWithWarningsLinux.BridgeNfIP6tables = false
+
+	for _, tc := range []struct {
+		dockerInfo     types.Info
+		expectedGolden string
+		warningsGolden string
+	}{
+		{
+			dockerInfo:     sampleInfoNoSwarm,
+			expectedGolden: "docker-info-no-swarm",
+		},
+		{
+			dockerInfo:     infoWithSwarm,
+			expectedGolden: "docker-info-with-swarm",
+		},
+		{
+			dockerInfo:     infoWithWarningsLinux,
+			expectedGolden: "docker-info-no-swarm",
+			warningsGolden: "docker-info-warnings",
+		},
+	} {
+		cli := test.NewFakeCli(&fakeClient{})
+		assert.NoError(t, prettyPrintInfo(cli, tc.dockerInfo))
+		golden.Assert(t, cli.OutBuffer().String(), tc.expectedGolden+".golden")
+		if tc.warningsGolden != "" {
+			golden.Assert(t, cli.ErrBuffer().String(), tc.warningsGolden+".golden")
+		} else {
+			assert.Equal(t, "", cli.ErrBuffer().String())
+		}
+	}
+}

cli/command/system/testdata/docker-info-no-swarm.golden

@@ -0,0 +1,51 @@
+Containers: 0
+ Running: 0
+ Paused: 0
+ Stopped: 0
+Images: 0
+Server Version: 17.06.1-ce
+Storage Driver: aufs
+ Root Dir: /var/lib/docker/aufs
+ Backing Filesystem: extfs
+ Dirs: 0
+ Dirperm1 Supported: 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 logentries splunk syslog
+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 (client): false
+Debug Mode (server): true
+ File Descriptors: 33
+ Goroutines: 135
+ System Time: 2017-08-24T17:44:34.077811894Z
+ EventsListeners: 0
+Registry: https://index.docker.io/v1/
+Labels:
+ provider=digitalocean
+Experimental: false
+Insecure Registries:
+ 127.0.0.0/8
+Live Restore Enabled: false
+

cli/command/system/testdata/docker-info-warnings.golden

@@ -0,0 +1,11 @@
+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

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

@@ -0,0 +1,73 @@
+Containers: 0
+ Running: 0
+ Paused: 0
+ Stopped: 0
+Images: 0
+Server Version: 17.06.1-ce
+Storage Driver: aufs
+ Root Dir: /var/lib/docker/aufs
+ Backing Filesystem: extfs
+ Dirs: 0
+ Dirperm1 Supported: 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 logentries splunk syslog
+Swarm: active
+ NodeID: qo2dfdig9mmxqkawulggepdih
+ Is Manager: true
+ ClusterID: 9vs5ygs0gguyyec4iqf2314c0
+ Managers: 1
+ Nodes: 1
+ Orchestration:
+  Task History Retention Limit: 5
+ Raft:
+  Snapshot Interval: 10000
+  Number of Old Snapshots to Retain: 0
+  Heartbeat Tick: 1
+  Election Tick: 3
+ Dispatcher:
+  Heartbeat Period: 5 seconds
+ CA Configuration:
+  Expiry Duration: 3 months
+  Force Rotate: 0
+ Autolock Managers: true
+ Root Rotation In Progress: false
+ Node Address: 165.227.107.89
+ Manager Addresses:
+  165.227.107.89:2377
+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 (client): false
+Debug Mode (server): true
+ File Descriptors: 33
+ Goroutines: 135
+ System Time: 2017-08-24T17:44:34.077811894Z
+ EventsListeners: 0
+Registry: https://index.docker.io/v1/
+Labels:
+ provider=digitalocean
+Experimental: false
+Insecure Registries:
+ 127.0.0.0/8
+Live Restore Enabled: false
+