mirror of https://github.com/docker/cli.git
382 lines
14 KiB
Go
382 lines
14 KiB
Go
package system
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"sort"
|
|
"strings"
|
|
|
|
"github.com/docker/cli/cli"
|
|
"github.com/docker/cli/cli/command"
|
|
"github.com/docker/cli/cli/debug"
|
|
"github.com/docker/docker/api/types"
|
|
"github.com/docker/docker/api/types/swarm"
|
|
"github.com/docker/docker/pkg/templates"
|
|
"github.com/docker/go-units"
|
|
"github.com/spf13/cobra"
|
|
"golang.org/x/net/context"
|
|
)
|
|
|
|
type infoOptions struct {
|
|
format string
|
|
}
|
|
|
|
// NewInfoCommand creates a new cobra.Command for `docker info`
|
|
func NewInfoCommand(dockerCli *command.DockerCli) *cobra.Command {
|
|
var opts infoOptions
|
|
|
|
cmd := &cobra.Command{
|
|
Use: "info [OPTIONS]",
|
|
Short: "Display system-wide information",
|
|
Args: cli.NoArgs,
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
return runInfo(dockerCli, &opts)
|
|
},
|
|
}
|
|
|
|
flags := cmd.Flags()
|
|
|
|
flags.StringVarP(&opts.format, "format", "f", "", "Format the output using the given Go template")
|
|
|
|
return cmd
|
|
}
|
|
|
|
func runInfo(dockerCli *command.DockerCli, opts *infoOptions) error {
|
|
ctx := context.Background()
|
|
info, err := dockerCli.Client().Info(ctx)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if opts.format == "" {
|
|
return prettyPrintInfo(dockerCli, info)
|
|
}
|
|
return formatInfo(dockerCli, info, opts.format)
|
|
}
|
|
|
|
// nolint: gocyclo
|
|
func prettyPrintInfo(dockerCli *command.DockerCli, 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)
|
|
fmt.Fprintf(dockerCli.Out(), " Stopped: %d\n", info.ContainersStopped)
|
|
fmt.Fprintf(dockerCli.Out(), "Images: %d\n", info.Images)
|
|
fprintfIfNotEmpty(dockerCli.Out(), "Server Version: %s\n", info.ServerVersion)
|
|
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])
|
|
}
|
|
|
|
}
|
|
if info.SystemStatus != nil {
|
|
for _, pair := range info.SystemStatus {
|
|
fmt.Fprintf(dockerCli.Out(), "%s: %s\n", pair[0], pair[1])
|
|
}
|
|
}
|
|
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(), " 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(), " Log:")
|
|
fmt.Fprintf(dockerCli.Out(), " %s", strings.Join(info.Plugins.Log, " "))
|
|
fmt.Fprintf(dockerCli.Out(), "\n")
|
|
|
|
fmt.Fprintf(dockerCli.Out(), "Swarm: %v\n", info.Swarm.LocalNodeState)
|
|
if info.Swarm.LocalNodeState != swarm.LocalNodeStateInactive && info.Swarm.LocalNodeState != swarm.LocalNodeStateLocked {
|
|
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.Cluster != nil && info.Swarm.ControlAvailable && info.Swarm.Error == "" && info.Swarm.LocalNodeState != swarm.LocalNodeStateError {
|
|
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")
|
|
taskHistoryRetentionLimit := int64(0)
|
|
if info.Swarm.Cluster.Spec.Orchestration.TaskHistoryRetentionLimit != nil {
|
|
taskHistoryRetentionLimit = *info.Swarm.Cluster.Spec.Orchestration.TaskHistoryRetentionLimit
|
|
}
|
|
fmt.Fprintf(dockerCli.Out(), " Task History Retention Limit: %d\n", taskHistoryRetentionLimit)
|
|
fmt.Fprintf(dockerCli.Out(), " Raft:\n")
|
|
fmt.Fprintf(dockerCli.Out(), " Snapshot Interval: %d\n", info.Swarm.Cluster.Spec.Raft.SnapshotInterval)
|
|
if info.Swarm.Cluster.Spec.Raft.KeepOldSnapshots != nil {
|
|
fmt.Fprintf(dockerCli.Out(), " Number of Old Snapshots to Retain: %d\n", *info.Swarm.Cluster.Spec.Raft.KeepOldSnapshots)
|
|
}
|
|
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(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(), " Force Rotate: %d\n", info.Swarm.Cluster.Spec.CAConfig.ForceRotate)
|
|
fprintfIfNotEmpty(dockerCli.Out(), " Signing CA Certificate: \n%s\n\n", strings.TrimSpace(info.Swarm.Cluster.Spec.CAConfig.SigningCACert))
|
|
if len(info.Swarm.Cluster.Spec.CAConfig.ExternalCAs) > 0 {
|
|
fmt.Fprintf(dockerCli.Out(), " External CAs:\n")
|
|
for _, entry := range info.Swarm.Cluster.Spec.CAConfig.ExternalCAs {
|
|
fmt.Fprintf(dockerCli.Out(), " %s: %s\n", entry.Protocol, entry.URL)
|
|
}
|
|
}
|
|
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)
|
|
managers := []string{}
|
|
for _, entry := range info.Swarm.RemoteManagers {
|
|
managers = append(managers, entry.Addr)
|
|
}
|
|
if len(managers) > 0 {
|
|
sort.Strings(managers)
|
|
fmt.Fprintf(dockerCli.Out(), " Manager Addresses:\n")
|
|
for _, entry := range managers {
|
|
fmt.Fprintf(dockerCli.Out(), " %s\n", entry)
|
|
}
|
|
}
|
|
}
|
|
|
|
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)
|
|
}
|
|
|
|
if info.OSType == "linux" {
|
|
fmt.Fprintf(dockerCli.Out(), "Init Binary: %v\n", info.InitBinary)
|
|
|
|
for _, ci := range []struct {
|
|
Name string
|
|
Commit types.Commit
|
|
}{
|
|
{"containerd", info.ContainerdCommit},
|
|
{"runc", info.RuncCommit},
|
|
{"init", info.InitCommit},
|
|
} {
|
|
fmt.Fprintf(dockerCli.Out(), "%s version: %s", ci.Name, ci.Commit.ID)
|
|
if ci.Commit.ID != ci.Commit.Expected {
|
|
fmt.Fprintf(dockerCli.Out(), " (expected: %s)", ci.Commit.Expected)
|
|
}
|
|
fmt.Fprintf(dockerCli.Out(), "\n")
|
|
}
|
|
if len(info.SecurityOptions) != 0 {
|
|
kvs, err := types.DecodeSecurityOptions(info.SecurityOptions)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
fmt.Fprintf(dockerCli.Out(), "Security Options:\n")
|
|
for _, so := range kvs {
|
|
fmt.Fprintf(dockerCli.Out(), " %s\n", so.Name)
|
|
for _, o := range so.Options {
|
|
switch o.Key {
|
|
case "profile":
|
|
if o.Value != "default" {
|
|
fmt.Fprintf(dockerCli.Err(), " WARNING: You're not using the default seccomp profile\n")
|
|
}
|
|
fmt.Fprintf(dockerCli.Out(), " Profile: %s\n", o.Value)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Isolation only has meaning on a Windows daemon.
|
|
if info.OSType == "windows" {
|
|
fmt.Fprintf(dockerCli.Out(), "Default Isolation: %v\n", info.Isolation)
|
|
}
|
|
|
|
fprintfIfNotEmpty(dockerCli.Out(), "Kernel Version: %s\n", info.KernelVersion)
|
|
fprintfIfNotEmpty(dockerCli.Out(), "Operating System: %s\n", info.OperatingSystem)
|
|
fprintfIfNotEmpty(dockerCli.Out(), "OSType: %s\n", info.OSType)
|
|
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)))
|
|
fprintfIfNotEmpty(dockerCli.Out(), "Name: %s\n", info.Name)
|
|
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", debug.IsEnabled())
|
|
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)
|
|
}
|
|
|
|
fprintfIfNotEmpty(dockerCli.Out(), "Http Proxy: %s\n", info.HTTPProxy)
|
|
fprintfIfNotEmpty(dockerCli.Out(), "Https Proxy: %s\n", info.HTTPSProxy)
|
|
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)
|
|
}
|
|
|
|
if info.Labels != nil {
|
|
fmt.Fprintln(dockerCli.Out(), "Labels:")
|
|
for _, attribute := range info.Labels {
|
|
fmt.Fprintf(dockerCli.Out(), " %s\n", attribute)
|
|
}
|
|
// TODO: Engine labels with duplicate keys has been deprecated in 1.13 and will be error out
|
|
// after 3 release cycles (17.12). For now, a WARNING will be generated. The following will
|
|
// be removed eventually.
|
|
labelMap := map[string]string{}
|
|
for _, label := range info.Labels {
|
|
stringSlice := strings.SplitN(label, "=", 2)
|
|
if len(stringSlice) > 1 {
|
|
// If there is a conflict we will throw out a warning
|
|
if v, ok := labelMap[stringSlice[0]]; ok && v != stringSlice[1] {
|
|
fmt.Fprintln(dockerCli.Err(), "WARNING: labels with duplicate keys and conflicting values have been deprecated")
|
|
break
|
|
}
|
|
labelMap[stringSlice[0]] = stringSlice[1]
|
|
}
|
|
}
|
|
}
|
|
|
|
fmt.Fprintf(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 {
|
|
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)
|
|
}
|
|
}
|
|
|
|
if info.RegistryConfig != nil && len(info.RegistryConfig.Mirrors) > 0 {
|
|
fmt.Fprintln(dockerCli.Out(), "Registry Mirrors:")
|
|
for _, mirror := range info.RegistryConfig.Mirrors {
|
|
fmt.Fprintf(dockerCli.Out(), " %s\n", mirror)
|
|
}
|
|
}
|
|
|
|
fmt.Fprintf(dockerCli.Out(), "Live Restore Enabled: %v\n\n", info.LiveRestoreEnabled)
|
|
|
|
// Only output these warnings if the server does not support these features
|
|
if info.OSType != "windows" {
|
|
printStorageDriverWarnings(dockerCli, info)
|
|
|
|
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")
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func printStorageDriverWarnings(dockerCli *command.DockerCli, info types.Info) {
|
|
if info.DriverStatus == nil {
|
|
return
|
|
}
|
|
|
|
for _, pair := range info.DriverStatus {
|
|
if pair[0] == "Data loop file" {
|
|
fmt.Fprintf(dockerCli.Err(), "WARNING: %s: usage of loopback devices is "+
|
|
"strongly discouraged for production use.\n "+
|
|
"Use `--storage-opt dm.thinpooldev` to specify a custom block storage device.\n", info.Driver)
|
|
}
|
|
if pair[0] == "Supports d_type" && pair[1] == "false" {
|
|
backingFs := getBackingFs(info)
|
|
|
|
msg := fmt.Sprintf("WARNING: %s: the backing %s filesystem is formatted without d_type support, which leads to incorrect behavior.\n", info.Driver, backingFs)
|
|
if backingFs == "xfs" {
|
|
msg += " Reformat the filesystem with ftype=1 to enable d_type support.\n"
|
|
}
|
|
msg += " Running without d_type support will not be supported in future releases."
|
|
fmt.Fprintln(dockerCli.Err(), msg)
|
|
}
|
|
}
|
|
}
|
|
|
|
func getBackingFs(info types.Info) string {
|
|
if info.DriverStatus == nil {
|
|
return ""
|
|
}
|
|
|
|
for _, pair := range info.DriverStatus {
|
|
if pair[0] == "Backing Filesystem" {
|
|
return pair[1]
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func formatInfo(dockerCli *command.DockerCli, info types.Info, format string) error {
|
|
tmpl, err := templates.Parse(format)
|
|
if err != nil {
|
|
return cli.StatusError{StatusCode: 64,
|
|
Status: "Template parsing error: " + err.Error()}
|
|
}
|
|
err = tmpl.Execute(dockerCli.Out(), info)
|
|
dockerCli.Out().Write([]byte{'\n'})
|
|
return err
|
|
}
|
|
|
|
func fprintfIfNotEmpty(w io.Writer, format, value string) (int, error) {
|
|
if value != "" {
|
|
return fmt.Fprintf(w, format, value)
|
|
}
|
|
return 0, nil
|
|
}
|