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package cluster
import (
"errors"
"fmt"
"os"
"sort"
"text/tabwriter"
"github.com/docker/swarmkit/api"
"github.com/docker/swarmkit/cmd/swarmctl/common"
gogotypes "github.com/gogo/protobuf/types"
"github.com/spf13/cobra"
)
func printClusterSummary(cluster *api.Cluster) {
w := tabwriter.NewWriter(os.Stdout, 8, 8, 8, ' ', 0)
defer w.Flush()
common.FprintfIfNotEmpty(w, "ID\t: %s\n", cluster.ID)
common.FprintfIfNotEmpty(w, "Name\t: %s\n", cluster.Spec.Annotations.Name)
fmt.Fprintln(w, "Orchestration settings:")
fmt.Fprintf(w, " Task history entries: %d\n", cluster.Spec.Orchestration.TaskHistoryRetentionLimit)
heartbeatPeriod, err := gogotypes.DurationFromProto(cluster.Spec.Dispatcher.HeartbeatPeriod)
if err == nil {
fmt.Fprintln(w, "Dispatcher settings:")
fmt.Fprintf(w, " Dispatcher heartbeat period: %s\n", heartbeatPeriod.String())
}
fmt.Fprintln(w, "Certificate Authority settings:")
if cluster.Spec.CAConfig.NodeCertExpiry != nil {
clusterDuration, err := gogotypes.DurationFromProto(cluster.Spec.CAConfig.NodeCertExpiry)
if err != nil {
fmt.Fprintln(w, " Certificate Validity Duration: [ERROR PARSING DURATION]")
} else {
fmt.Fprintf(w, " Certificate Validity Duration: %s\n", clusterDuration.String())
}
}
if len(cluster.Spec.CAConfig.ExternalCAs) > 0 {
fmt.Fprintln(w, " External CAs:")
for _, ca := range cluster.Spec.CAConfig.ExternalCAs {
fmt.Fprintf(w, " %s: %s\n", ca.Protocol, ca.URL)
}
}
fmt.Fprintln(w, " Join Tokens:")
fmt.Fprintln(w, " Worker:", cluster.RootCA.JoinTokens.Worker)
fmt.Fprintln(w, " Manager:", cluster.RootCA.JoinTokens.Manager)
if cluster.Spec.TaskDefaults.LogDriver != nil {
fmt.Fprintf(w, "Default Log Driver\t: %s\n", cluster.Spec.TaskDefaults.LogDriver.Name)
var keys []string
if len(cluster.Spec.TaskDefaults.LogDriver.Options) != 0 {
for k := range cluster.Spec.TaskDefaults.LogDriver.Options {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
v := cluster.Spec.TaskDefaults.LogDriver.Options[k]
if v != "" {
fmt.Fprintf(w, " %s\t: %s\n", k, v)
} else {
fmt.Fprintf(w, " %s\t\n", k)
}
}
}
}
}
var (
inspectCmd = &cobra.Command{
Use: "inspect <cluster name>",
Short: "Inspect a cluster",
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) == 0 {
return errors.New("cluster name missing")
}
if len(args) > 1 {
return errors.New("inspect command takes exactly 1 argument")
}
c, err := common.Dial(cmd)
if err != nil {
return err
}
cluster, err := getCluster(common.Context(cmd), c, args[0])
if err != nil {
return err
}
printClusterSummary(cluster)
return nil
},
}
)
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