111 lines
3.8 KiB
Go
111 lines
3.8 KiB
Go
package client
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import (
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"encoding/json"
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"fmt"
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"github.com/docker/docker/api/types"
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Cli "github.com/docker/docker/cli"
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"github.com/docker/docker/pkg/httputils"
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"github.com/docker/docker/pkg/ioutils"
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flag "github.com/docker/docker/pkg/mflag"
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"github.com/docker/docker/pkg/units"
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)
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// CmdInfo displays system-wide information.
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//
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// Usage: docker info
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func (cli *DockerCli) CmdInfo(args ...string) error {
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cmd := Cli.Subcmd("info", nil, Cli.DockerCommands["info"].Description, true)
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cmd.Require(flag.Exact, 0)
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cmd.ParseFlags(args, true)
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serverResp, err := cli.call("GET", "/info", nil, nil)
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if err != nil {
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return err
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}
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defer serverResp.body.Close()
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info := &types.Info{}
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if err := json.NewDecoder(serverResp.body).Decode(info); err != nil {
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return fmt.Errorf("Error reading remote info: %v", err)
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}
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fmt.Fprintf(cli.out, "Containers: %d\n", info.Containers)
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fmt.Fprintf(cli.out, "Images: %d\n", info.Images)
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ioutils.FprintfIfNotEmpty(cli.out, "Engine Version: %s\n", info.ServerVersion)
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ioutils.FprintfIfNotEmpty(cli.out, "Storage Driver: %s\n", info.Driver)
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if info.DriverStatus != nil {
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for _, pair := range info.DriverStatus {
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fmt.Fprintf(cli.out, " %s: %s\n", pair[0], pair[1])
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}
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}
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ioutils.FprintfIfNotEmpty(cli.out, "Execution Driver: %s\n", info.ExecutionDriver)
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ioutils.FprintfIfNotEmpty(cli.out, "Logging Driver: %s\n", info.LoggingDriver)
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ioutils.FprintfIfNotEmpty(cli.out, "Kernel Version: %s\n", info.KernelVersion)
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ioutils.FprintfIfNotEmpty(cli.out, "Operating System: %s\n", info.OperatingSystem)
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fmt.Fprintf(cli.out, "CPUs: %d\n", info.NCPU)
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fmt.Fprintf(cli.out, "Total Memory: %s\n", units.BytesSize(float64(info.MemTotal)))
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ioutils.FprintfIfNotEmpty(cli.out, "Name: %s\n", info.Name)
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ioutils.FprintfIfNotEmpty(cli.out, "ID: %s\n", info.ID)
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if info.Debug {
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fmt.Fprintf(cli.out, "Debug mode (server): %v\n", info.Debug)
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fmt.Fprintf(cli.out, " File Descriptors: %d\n", info.NFd)
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fmt.Fprintf(cli.out, " Goroutines: %d\n", info.NGoroutines)
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fmt.Fprintf(cli.out, " System Time: %s\n", info.SystemTime)
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fmt.Fprintf(cli.out, " EventsListeners: %d\n", info.NEventsListener)
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fmt.Fprintf(cli.out, " Init SHA1: %s\n", info.InitSha1)
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fmt.Fprintf(cli.out, " Init Path: %s\n", info.InitPath)
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fmt.Fprintf(cli.out, " Docker Root Dir: %s\n", info.DockerRootDir)
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}
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ioutils.FprintfIfNotEmpty(cli.out, "Http Proxy: %s\n", info.HTTPProxy)
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ioutils.FprintfIfNotEmpty(cli.out, "Https Proxy: %s\n", info.HTTPSProxy)
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ioutils.FprintfIfNotEmpty(cli.out, "No Proxy: %s\n", info.NoProxy)
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if info.IndexServerAddress != "" {
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u := cli.configFile.AuthConfigs[info.IndexServerAddress].Username
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if len(u) > 0 {
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fmt.Fprintf(cli.out, "Username: %v\n", u)
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fmt.Fprintf(cli.out, "Registry: %v\n", info.IndexServerAddress)
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}
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}
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// Only output these warnings if the server does not support these features
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if h, err := httputils.ParseServerHeader(serverResp.header.Get("Server")); err == nil {
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if h.OS != "windows" {
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if !info.MemoryLimit {
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fmt.Fprintf(cli.err, "WARNING: No memory limit support\n")
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}
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if !info.SwapLimit {
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fmt.Fprintf(cli.err, "WARNING: No swap limit support\n")
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}
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if !info.IPv4Forwarding {
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fmt.Fprintf(cli.err, "WARNING: IPv4 forwarding is disabled\n")
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}
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if !info.BridgeNfIptables {
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fmt.Fprintf(cli.err, "WARNING: bridge-nf-call-iptables is disabled\n")
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}
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if !info.BridgeNfIP6tables {
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fmt.Fprintf(cli.err, "WARNING: bridge-nf-call-ip6tables is disabled\n")
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}
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}
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}
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if info.Labels != nil {
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fmt.Fprintln(cli.out, "Labels:")
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for _, attribute := range info.Labels {
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fmt.Fprintf(cli.out, " %s\n", attribute)
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}
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}
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ioutils.FprintfIfTrue(cli.out, "Experimental: %v\n", info.ExperimentalBuild)
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if info.ClusterStore != "" {
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fmt.Fprintf(cli.out, "Cluster store: %s\n", info.ClusterStore)
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}
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return nil
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}
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