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- package client
- import (
- "encoding/json"
- "fmt"
- "github.com/docker/docker/api/types"
- "github.com/docker/docker/pkg/ioutils"
- flag "github.com/docker/docker/pkg/mflag"
- "github.com/docker/docker/pkg/units"
- )
- // CmdInfo displays system-wide information.
- //
- // Usage: docker info
- func (cli *DockerCli) CmdInfo(args ...string) error {
- cmd := cli.Subcmd("info", nil, "Display system-wide information", true)
- cmd.Require(flag.Exact, 0)
- cmd.ParseFlags(args, true)
- rdr, _, _, err := cli.call("GET", "/info", nil, nil)
- if err != nil {
- return err
- }
- defer rdr.Close()
- info := &types.Info{}
- if err := json.NewDecoder(rdr).Decode(info); err != nil {
- return fmt.Errorf("Error reading remote info: %v", err)
- }
- fmt.Fprintf(cli.out, "Containers: %d\n", info.Containers)
- fmt.Fprintf(cli.out, "Images: %d\n", info.Images)
- ioutils.FprintfIfNotEmpty(cli.out, "Storage Driver: %s\n", info.Driver)
- if info.DriverStatus != nil {
- for _, pair := range info.DriverStatus {
- fmt.Fprintf(cli.out, " %s: %s\n", pair[0], pair[1])
- }
- }
- ioutils.FprintfIfNotEmpty(cli.out, "Execution Driver: %s\n", info.ExecutionDriver)
- ioutils.FprintfIfNotEmpty(cli.out, "Logging Driver: %s\n", info.LoggingDriver)
- ioutils.FprintfIfNotEmpty(cli.out, "Kernel Version: %s\n", info.KernelVersion)
- ioutils.FprintfIfNotEmpty(cli.out, "Operating System: %s\n", info.OperatingSystem)
- fmt.Fprintf(cli.out, "CPUs: %d\n", info.NCPU)
- fmt.Fprintf(cli.out, "Total Memory: %s\n", units.BytesSize(float64(info.MemTotal)))
- ioutils.FprintfIfNotEmpty(cli.out, "Name: %s\n", info.Name)
- ioutils.FprintfIfNotEmpty(cli.out, "ID: %s\n", info.ID)
- if info.Debug {
- fmt.Fprintf(cli.out, "Debug mode (server): %v\n", info.Debug)
- fmt.Fprintf(cli.out, "File Descriptors: %d\n", info.NFd)
- fmt.Fprintf(cli.out, "Goroutines: %d\n", info.NGoroutines)
- fmt.Fprintf(cli.out, "System Time: %s\n", info.SystemTime)
- fmt.Fprintf(cli.out, "EventsListeners: %d\n", info.NEventsListener)
- fmt.Fprintf(cli.out, "Init SHA1: %s\n", info.InitSha1)
- fmt.Fprintf(cli.out, "Init Path: %s\n", info.InitPath)
- fmt.Fprintf(cli.out, "Docker Root Dir: %s\n", info.DockerRootDir)
- }
- ioutils.FprintfIfNotEmpty(cli.out, "Http Proxy: %s\n", info.HttpProxy)
- ioutils.FprintfIfNotEmpty(cli.out, "Https Proxy: %s\n", info.HttpsProxy)
- ioutils.FprintfIfNotEmpty(cli.out, "No Proxy: %s\n", info.NoProxy)
- if info.IndexServerAddress != "" {
- u := cli.configFile.AuthConfigs[info.IndexServerAddress].Username
- if len(u) > 0 {
- fmt.Fprintf(cli.out, "Username: %v\n", u)
- fmt.Fprintf(cli.out, "Registry: %v\n", info.IndexServerAddress)
- }
- }
- if !info.MemoryLimit {
- fmt.Fprintf(cli.err, "WARNING: No memory limit support\n")
- }
- if !info.SwapLimit {
- fmt.Fprintf(cli.err, "WARNING: No swap limit support\n")
- }
- if !info.IPv4Forwarding {
- fmt.Fprintf(cli.err, "WARNING: IPv4 forwarding is disabled.\n")
- }
- if !info.BridgeNfIptables {
- fmt.Fprintf(cli.err, "WARNING: bridge-nf-call-iptables is disabled\n")
- }
- if !info.BridgeNfIp6tables {
- fmt.Fprintf(cli.err, "WARNING: bridge-nf-call-ip6tables is disabled\n")
- }
- if info.Labels != nil {
- fmt.Fprintln(cli.out, "Labels:")
- for _, attribute := range info.Labels {
- fmt.Fprintf(cli.out, " %s\n", attribute)
- }
- }
- if info.ExperimentalBuild {
- fmt.Fprintf(cli.out, "Experimental: true\n")
- }
- return nil
- }
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