mirror of https://github.com/docker/cli.git
123 lines
4.2 KiB
Go
123 lines
4.2 KiB
Go
package stack
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import (
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"fmt"
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"github.com/docker/cli/cli"
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"github.com/docker/cli/cli/command"
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"github.com/docker/cli/cli/compose/convert"
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"github.com/docker/docker/api/types/swarm"
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"github.com/docker/docker/api/types/versions"
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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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resolveImageAlways = "always"
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resolveImageChanged = "changed"
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resolveImageNever = "never"
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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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resolveImage 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.Cli) *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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flags.StringVar(&opts.resolveImage, "resolve-image", resolveImageAlways,
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`Query the registry to resolve image digest and supported platforms ("`+resolveImageAlways+`"|"`+resolveImageChanged+`"|"`+resolveImageNever+`")`)
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flags.SetAnnotation("resolve-image", "version", []string{"1.30"})
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return cmd
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}
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func runDeploy(dockerCli command.Cli, opts deployOptions) error {
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ctx := context.Background()
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if err := validateResolveImageFlag(dockerCli, &opts); err != nil {
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return err
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}
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switch {
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case opts.bundlefile == "" && opts.composefile == "":
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return errors.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 errors.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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// validateResolveImageFlag validates the opts.resolveImage command line option
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// and also turns image resolution off if the version is older than 1.30
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func validateResolveImageFlag(dockerCli command.Cli, opts *deployOptions) error {
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if opts.resolveImage != resolveImageAlways && opts.resolveImage != resolveImageChanged && opts.resolveImage != resolveImageNever {
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return errors.Errorf("Invalid option %s for flag --resolve-image", opts.resolveImage)
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}
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// client side image resolution should not be done when the supported
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// server version is older than 1.30
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if versions.LessThan(dockerCli.Client().ClientVersion(), "1.30") {
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opts.resolveImage = resolveImageNever
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}
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return nil
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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.Cli) 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{}) {
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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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}
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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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removeServices(ctx, dockerCli, pruneServices)
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}
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