mirror of https://github.com/docker/cli.git
84 lines
1.8 KiB
Go
84 lines
1.8 KiB
Go
package swarm
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import (
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"fmt"
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"golang.org/x/net/context"
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"github.com/docker/docker/api/types/swarm"
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"github.com/docker/docker/cli"
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"github.com/docker/docker/cli/command"
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"github.com/spf13/cobra"
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"github.com/spf13/pflag"
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)
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func newUpdateCommand(dockerCli *command.DockerCli) *cobra.Command {
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opts := swarmOptions{}
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cmd := &cobra.Command{
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Use: "update [OPTIONS]",
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Short: "Update the swarm",
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Args: cli.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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return runUpdate(dockerCli, cmd.Flags(), opts)
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},
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}
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addSwarmFlags(cmd.Flags(), &opts)
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return cmd
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}
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func runUpdate(dockerCli *command.DockerCli, flags *pflag.FlagSet, opts swarmOptions) error {
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client := dockerCli.Client()
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ctx := context.Background()
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var updateFlags swarm.UpdateFlags
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swarm, err := client.SwarmInspect(ctx)
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if err != nil {
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return err
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}
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err = mergeSwarm(&swarm, flags)
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if err != nil {
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return err
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}
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err = client.SwarmUpdate(ctx, swarm.Version, swarm.Spec, updateFlags)
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if err != nil {
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return err
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}
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fmt.Fprintln(dockerCli.Out(), "Swarm updated.")
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return nil
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}
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func mergeSwarm(swarm *swarm.Swarm, flags *pflag.FlagSet) error {
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spec := &swarm.Spec
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if flags.Changed(flagTaskHistoryLimit) {
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taskHistoryRetentionLimit, _ := flags.GetInt64(flagTaskHistoryLimit)
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spec.Orchestration.TaskHistoryRetentionLimit = &taskHistoryRetentionLimit
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}
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if flags.Changed(flagDispatcherHeartbeat) {
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if v, err := flags.GetDuration(flagDispatcherHeartbeat); err == nil {
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spec.Dispatcher.HeartbeatPeriod = v
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}
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}
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if flags.Changed(flagCertExpiry) {
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if v, err := flags.GetDuration(flagCertExpiry); err == nil {
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spec.CAConfig.NodeCertExpiry = v
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}
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}
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if flags.Changed(flagExternalCA) {
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value := flags.Lookup(flagExternalCA).Value.(*ExternalCAOption)
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spec.CAConfig.ExternalCAs = value.Value()
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}
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return nil
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}
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