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|
package node
import (
"errors"
"fmt"
"os"
"sort"
"text/tabwriter"
"github.com/docker/swarmkit/api"
"github.com/docker/swarmkit/api/genericresource"
"github.com/docker/swarmkit/cmd/swarmctl/common"
"github.com/docker/swarmkit/cmd/swarmctl/task"
"github.com/dustin/go-humanize"
"github.com/spf13/cobra"
)
func printNodeSummary(node *api.Node) {
w := tabwriter.NewWriter(os.Stdout, 8, 8, 8, ' ', 0)
defer func() {
// Ignore flushing errors - there's nothing we can do.
_ = w.Flush()
}()
spec := &node.Spec
desc := node.Description
if desc == nil {
desc = &api.NodeDescription{}
}
common.FprintfIfNotEmpty(w, "ID\t: %s\n", node.ID)
if node.Description != nil {
common.FprintfIfNotEmpty(w, "Hostname\t: %s\n", node.Description.Hostname)
}
if len(spec.Annotations.Labels) != 0 {
fmt.Fprint(w, "Node Labels\t:")
// sort label output for readability
var keys []string
for k := range spec.Annotations.Labels {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
fmt.Fprintf(w, " %s=%s", k, spec.Annotations.Labels[k])
}
fmt.Fprintln(w)
}
fmt.Fprintln(w, "Status:\t")
common.FprintfIfNotEmpty(w, " State\t: %s\n", node.Status.State.String())
common.FprintfIfNotEmpty(w, " Message\t: %s\n", node.Status.Message)
common.FprintfIfNotEmpty(w, " Availability\t: %s\n", spec.Availability.String())
common.FprintfIfNotEmpty(w, " Address\t: %s\n", node.Status.Addr)
if node.ManagerStatus != nil {
fmt.Fprintln(w, "Manager status:\t")
common.FprintfIfNotEmpty(w, " Address\t: %s\n", node.ManagerStatus.Addr)
common.FprintfIfNotEmpty(w, " Raft status\t: %s\n", node.ManagerStatus.Reachability.String())
leader := "no"
if node.ManagerStatus.Leader {
leader = "yes"
}
common.FprintfIfNotEmpty(w, " Leader\t: %s\n", leader)
}
if desc.Platform != nil {
fmt.Fprintln(w, "Platform:\t")
common.FprintfIfNotEmpty(w, " Operating System\t: %s\n", desc.Platform.OS)
common.FprintfIfNotEmpty(w, " Architecture\t: %s\n", desc.Platform.Architecture)
}
if desc.Resources != nil {
fmt.Fprintln(w, "Resources:\t")
fmt.Fprintf(w, " CPUs\t: %d\n", desc.Resources.NanoCPUs/1e9)
fmt.Fprintf(w, " Memory\t: %s\n", humanize.IBytes(uint64(desc.Resources.MemoryBytes)))
fmt.Fprintln(w, " Generic Resources:\t")
for _, r := range desc.Resources.Generic {
k := genericresource.Kind(r)
v := genericresource.Value(r)
fmt.Fprintf(w, " %s\t: %s\n", k, v)
}
}
if desc.Engine != nil {
fmt.Fprintln(w, "Plugins:\t")
var pluginTypes []string
pluginNamesByType := map[string][]string{}
for _, p := range desc.Engine.Plugins {
// append to pluginTypes only if not done previously
if _, ok := pluginNamesByType[p.Type]; !ok {
pluginTypes = append(pluginTypes, p.Type)
}
pluginNamesByType[p.Type] = append(pluginNamesByType[p.Type], p.Name)
}
sort.Strings(pluginTypes) // ensure stable output
for _, pluginType := range pluginTypes {
fmt.Fprintf(w, " %s\t: %v\n", pluginType, pluginNamesByType[pluginType])
}
}
if desc.Engine != nil {
common.FprintfIfNotEmpty(w, "Engine Version\t: %s\n", desc.Engine.EngineVersion)
if len(desc.Engine.Labels) != 0 {
fmt.Fprint(w, "Engine Labels\t:")
var keys []string
for k := range desc.Engine.Labels {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
fmt.Fprintf(w, " %s=%s", k, desc.Engine.Labels[k])
}
fmt.Fprintln(w)
}
}
}
var (
inspectCmd = &cobra.Command{
Use: "inspect <node ID>",
Short: "Inspect a node",
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) == 0 {
return errors.New("node ID missing")
}
if len(args) > 1 {
return errors.New("inspect command takes exactly 1 argument")
}
flags := cmd.Flags()
all, err := flags.GetBool("all")
if err != nil {
return err
}
c, err := common.Dial(cmd)
if err != nil {
return err
}
node, err := getNode(common.Context(cmd), c, args[0])
if err != nil {
return err
}
r, err := c.ListTasks(common.Context(cmd),
&api.ListTasksRequest{
Filters: &api.ListTasksRequest_Filters{
NodeIDs: []string{node.ID},
},
})
if err != nil {
return err
}
printNodeSummary(node)
if len(r.Tasks) > 0 {
fmt.Println()
task.Print(r.Tasks, all, common.NewResolver(cmd, c))
}
return nil
},
}
)
func init() {
inspectCmd.Flags().BoolP("all", "a", false, "Show all tasks (default shows just running)")
}
|
