| package system |
| |
| import ( |
| "fmt" |
| "strings" |
| "time" |
| |
| "golang.org/x/net/context" |
| |
| "github.com/docker/docker/api/client" |
| "github.com/docker/docker/cli" |
| "github.com/docker/docker/pkg/ioutils" |
| "github.com/docker/docker/utils" |
| "github.com/docker/engine-api/types/swarm" |
| "github.com/docker/go-units" |
| "github.com/spf13/cobra" |
| ) |
| |
| // NewInfoCommand creates a new cobra.Command for `docker info` |
| func NewInfoCommand(dockerCli *client.DockerCli) *cobra.Command { |
| cmd := &cobra.Command{ |
| Use: "info", |
| Short: "Display system-wide information", |
| Args: cli.ExactArgs(0), |
| RunE: func(cmd *cobra.Command, args []string) error { |
| return runInfo(dockerCli) |
| }, |
| } |
| return cmd |
| |
| } |
| |
| func runInfo(dockerCli *client.DockerCli) error { |
| ctx := context.Background() |
| info, err := dockerCli.Client().Info(ctx) |
| if err != nil { |
| return err |
| } |
| |
| 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) |
| fmt.Fprintf(dockerCli.Out(), " Stopped: %d\n", info.ContainersStopped) |
| fmt.Fprintf(dockerCli.Out(), "Images: %d\n", info.Images) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Server Version: %s\n", info.ServerVersion) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Storage Driver: %s\n", info.Driver) |
| if info.DriverStatus != nil { |
| for _, pair := range info.DriverStatus { |
| fmt.Fprintf(dockerCli.Out(), " %s: %s\n", pair[0], pair[1]) |
| |
| // print a warning if devicemapper is using a loopback file |
| if pair[0] == "Data loop file" { |
| fmt.Fprintln(dockerCli.Err(), " WARNING: Usage of loopback devices is strongly discouraged for production use. Use `--storage-opt dm.thinpooldev` to specify a custom block storage device.") |
| } |
| } |
| |
| } |
| if info.SystemStatus != nil { |
| for _, pair := range info.SystemStatus { |
| fmt.Fprintf(dockerCli.Out(), "%s: %s\n", pair[0], pair[1]) |
| } |
| } |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Logging Driver: %s\n", info.LoggingDriver) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Cgroup Driver: %s\n", info.CgroupDriver) |
| |
| 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") |
| fmt.Fprintf(dockerCli.Out(), " Network:") |
| fmt.Fprintf(dockerCli.Out(), " %s", strings.Join(info.Plugins.Network, " ")) |
| fmt.Fprintf(dockerCli.Out(), "\n") |
| |
| if len(info.Plugins.Authorization) != 0 { |
| fmt.Fprintf(dockerCli.Out(), " Authorization:") |
| fmt.Fprintf(dockerCli.Out(), " %s", strings.Join(info.Plugins.Authorization, " ")) |
| fmt.Fprintf(dockerCli.Out(), "\n") |
| } |
| |
| fmt.Fprintf(dockerCli.Out(), "Swarm: %v\n", info.Swarm.LocalNodeState) |
| if info.Swarm.LocalNodeState != swarm.LocalNodeStateInactive { |
| fmt.Fprintf(dockerCli.Out(), " NodeID: %s\n", info.Swarm.NodeID) |
| if info.Swarm.Error != "" { |
| fmt.Fprintf(dockerCli.Out(), " Error: %v\n", info.Swarm.Error) |
| } |
| fmt.Fprintf(dockerCli.Out(), " Is Manager: %v\n", info.Swarm.ControlAvailable) |
| if info.Swarm.ControlAvailable { |
| fmt.Fprintf(dockerCli.Out(), " ClusterID: %s\n", info.Swarm.Cluster.ID) |
| fmt.Fprintf(dockerCli.Out(), " Managers: %d\n", info.Swarm.Managers) |
| fmt.Fprintf(dockerCli.Out(), " Nodes: %d\n", info.Swarm.Nodes) |
| fmt.Fprintf(dockerCli.Out(), " Orchestration:\n") |
| fmt.Fprintf(dockerCli.Out(), " Task History Retention Limit: %d\n", info.Swarm.Cluster.Spec.Orchestration.TaskHistoryRetentionLimit) |
| fmt.Fprintf(dockerCli.Out(), " Raft:\n") |
| fmt.Fprintf(dockerCli.Out(), " Snapshot interval: %d\n", info.Swarm.Cluster.Spec.Raft.SnapshotInterval) |
| fmt.Fprintf(dockerCli.Out(), " Heartbeat tick: %d\n", info.Swarm.Cluster.Spec.Raft.HeartbeatTick) |
| fmt.Fprintf(dockerCli.Out(), " Election tick: %d\n", info.Swarm.Cluster.Spec.Raft.ElectionTick) |
| fmt.Fprintf(dockerCli.Out(), " Dispatcher:\n") |
| fmt.Fprintf(dockerCli.Out(), " Heartbeat period: %s\n", units.HumanDuration(time.Duration(info.Swarm.Cluster.Spec.Dispatcher.HeartbeatPeriod))) |
| fmt.Fprintf(dockerCli.Out(), " CA configuration:\n") |
| fmt.Fprintf(dockerCli.Out(), " Expiry duration: %s\n", units.HumanDuration(info.Swarm.Cluster.Spec.CAConfig.NodeCertExpiry)) |
| } |
| fmt.Fprintf(dockerCli.Out(), " Node Address: %s\n", info.Swarm.NodeAddr) |
| } |
| |
| if len(info.Runtimes) > 0 { |
| fmt.Fprintf(dockerCli.Out(), "Runtimes:") |
| for name := range info.Runtimes { |
| fmt.Fprintf(dockerCli.Out(), " %s", name) |
| } |
| fmt.Fprint(dockerCli.Out(), "\n") |
| fmt.Fprintf(dockerCli.Out(), "Default Runtime: %s\n", info.DefaultRuntime) |
| } |
| |
| fmt.Fprintf(dockerCli.Out(), "Security Options:") |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), " %s", strings.Join(info.SecurityOptions, " ")) |
| fmt.Fprintf(dockerCli.Out(), "\n") |
| |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Kernel Version: %s\n", info.KernelVersion) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Operating System: %s\n", info.OperatingSystem) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "OSType: %s\n", info.OSType) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Architecture: %s\n", info.Architecture) |
| fmt.Fprintf(dockerCli.Out(), "CPUs: %d\n", info.NCPU) |
| fmt.Fprintf(dockerCli.Out(), "Total Memory: %s\n", units.BytesSize(float64(info.MemTotal))) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Name: %s\n", info.Name) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "ID: %s\n", info.ID) |
| fmt.Fprintf(dockerCli.Out(), "Docker Root Dir: %s\n", info.DockerRootDir) |
| fmt.Fprintf(dockerCli.Out(), "Debug Mode (client): %v\n", utils.IsDebugEnabled()) |
| fmt.Fprintf(dockerCli.Out(), "Debug Mode (server): %v\n", info.Debug) |
| |
| if info.Debug { |
| fmt.Fprintf(dockerCli.Out(), " File Descriptors: %d\n", info.NFd) |
| fmt.Fprintf(dockerCli.Out(), " Goroutines: %d\n", info.NGoroutines) |
| fmt.Fprintf(dockerCli.Out(), " System Time: %s\n", info.SystemTime) |
| fmt.Fprintf(dockerCli.Out(), " EventsListeners: %d\n", info.NEventsListener) |
| } |
| |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Http Proxy: %s\n", info.HTTPProxy) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "Https Proxy: %s\n", info.HTTPSProxy) |
| ioutils.FprintfIfNotEmpty(dockerCli.Out(), "No Proxy: %s\n", info.NoProxy) |
| |
| if info.IndexServerAddress != "" { |
| u := dockerCli.ConfigFile().AuthConfigs[info.IndexServerAddress].Username |
| if len(u) > 0 { |
| fmt.Fprintf(dockerCli.Out(), "Username: %v\n", u) |
| } |
| fmt.Fprintf(dockerCli.Out(), "Registry: %v\n", info.IndexServerAddress) |
| } |
| |
| // Only output these warnings if the server does not support these features |
| if info.OSType != "windows" { |
| if !info.MemoryLimit { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: No memory limit support") |
| } |
| if !info.SwapLimit { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: No swap limit support") |
| } |
| if !info.KernelMemory { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: No kernel memory limit support") |
| } |
| if !info.OomKillDisable { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: No oom kill disable support") |
| } |
| if !info.CPUCfsQuota { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: No cpu cfs quota support") |
| } |
| if !info.CPUCfsPeriod { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: No cpu cfs period support") |
| } |
| if !info.CPUShares { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: No cpu shares support") |
| } |
| if !info.CPUSet { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: No cpuset support") |
| } |
| if !info.IPv4Forwarding { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: IPv4 forwarding is disabled") |
| } |
| if !info.BridgeNfIptables { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: bridge-nf-call-iptables is disabled") |
| } |
| if !info.BridgeNfIP6tables { |
| fmt.Fprintln(dockerCli.Err(), "WARNING: bridge-nf-call-ip6tables is disabled") |
| } |
| } |
| |
| if info.Labels != nil { |
| fmt.Fprintln(dockerCli.Out(), "Labels:") |
| for _, attribute := range info.Labels { |
| fmt.Fprintf(dockerCli.Out(), " %s\n", attribute) |
| } |
| } |
| |
| ioutils.FprintfIfTrue(dockerCli.Out(), "Experimental: %v\n", info.ExperimentalBuild) |
| if info.ClusterStore != "" { |
| fmt.Fprintf(dockerCli.Out(), "Cluster Store: %s\n", info.ClusterStore) |
| } |
| |
| if info.ClusterAdvertise != "" { |
| fmt.Fprintf(dockerCli.Out(), "Cluster Advertise: %s\n", info.ClusterAdvertise) |
| } |
| |
| if info.RegistryConfig != nil && (len(info.RegistryConfig.InsecureRegistryCIDRs) > 0 || len(info.RegistryConfig.IndexConfigs) > 0) { |
| fmt.Fprintln(dockerCli.Out(), "Insecure Registries:") |
| for _, registry := range info.RegistryConfig.IndexConfigs { |
| if registry.Secure == false { |
| fmt.Fprintf(dockerCli.Out(), " %s\n", registry.Name) |
| } |
| } |
| |
| for _, registry := range info.RegistryConfig.InsecureRegistryCIDRs { |
| mask, _ := registry.Mask.Size() |
| fmt.Fprintf(dockerCli.Out(), " %s/%d\n", registry.IP.String(), mask) |
| } |
| } |
| return nil |
| } |
