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https://github.com/moby/moby.git
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97 lines
3 KiB
Go
97 lines
3 KiB
Go
package stack
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import (
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"fmt"
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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/docker/docker/cli/compose/convert"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"golang.org/x/net/context"
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)
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const (
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defaultNetworkDriver = "overlay"
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)
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type deployOptions struct {
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bundlefile string
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composefile string
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namespace string
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sendRegistryAuth bool
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prune bool
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}
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func newDeployCommand(dockerCli *command.DockerCli) *cobra.Command {
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var opts deployOptions
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cmd := &cobra.Command{
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Use: "deploy [OPTIONS] STACK",
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Aliases: []string{"up"},
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Short: "Deploy a new stack or update an existing stack",
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Args: cli.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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opts.namespace = args[0]
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return runDeploy(dockerCli, opts)
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},
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}
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flags := cmd.Flags()
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addBundlefileFlag(&opts.bundlefile, flags)
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addComposefileFlag(&opts.composefile, flags)
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addRegistryAuthFlag(&opts.sendRegistryAuth, flags)
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flags.BoolVar(&opts.prune, "prune", false, "Prune services that are no longer referenced")
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flags.SetAnnotation("prune", "version", []string{"1.27"})
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return cmd
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}
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func runDeploy(dockerCli *command.DockerCli, opts deployOptions) error {
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ctx := context.Background()
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switch {
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case opts.bundlefile == "" && opts.composefile == "":
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return fmt.Errorf("Please specify either a bundle file (with --bundle-file) or a Compose file (with --compose-file).")
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case opts.bundlefile != "" && opts.composefile != "":
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return fmt.Errorf("You cannot specify both a bundle file and a Compose file.")
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case opts.bundlefile != "":
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return deployBundle(ctx, dockerCli, opts)
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default:
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return deployCompose(ctx, dockerCli, opts)
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}
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}
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// checkDaemonIsSwarmManager does an Info API call to verify that the daemon is
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// a swarm manager. This is necessary because we must create networks before we
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// create services, but the API call for creating a network does not return a
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// proper status code when it can't create a network in the "global" scope.
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func checkDaemonIsSwarmManager(ctx context.Context, dockerCli *command.DockerCli) error {
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info, err := dockerCli.Client().Info(ctx)
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if err != nil {
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return err
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}
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if !info.Swarm.ControlAvailable {
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return errors.New("This node is not a swarm manager. Use \"docker swarm init\" or \"docker swarm join\" to connect this node to swarm and try again.")
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}
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return nil
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}
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// pruneServices removes services that are no longer referenced in the source
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func pruneServices(ctx context.Context, dockerCli command.Cli, namespace convert.Namespace, services map[string]struct{}) bool {
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client := dockerCli.Client()
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oldServices, err := getServices(ctx, client, namespace.Name())
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if err != nil {
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fmt.Fprintf(dockerCli.Err(), "Failed to list services: %s", err)
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return true
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}
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pruneServices := []swarm.Service{}
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for _, service := range oldServices {
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if _, exists := services[namespace.Descope(service.Spec.Name)]; !exists {
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pruneServices = append(pruneServices, service)
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}
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}
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return removeServices(ctx, dockerCli, pruneServices)
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}
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