1
0
Fork 0
mirror of https://github.com/moby/moby.git synced 2022-11-09 12:21:53 -05:00
moby--moby/cli/command/service/create.go
Aaron Lehmann d4392659f7 Return warnings from service create and service update when digest pinning fails
Modify the service update and create APIs to return optional warning
messages as part of the response. Populate these messages with an
informative reason when digest resolution fails.

This is a small API change, but significantly improves the UX. The user
can now get immediate feedback when they've specified a nonexistent
image or unreachable registry.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
(cherry picked from commit 948e60691e)
Signed-off-by: Victor Vieux <victorvieux@gmail.com>
2016-11-18 13:57:11 -08:00

99 lines
3.1 KiB
Go

package service
import (
"fmt"
"github.com/docker/docker/api/types"
"github.com/docker/docker/cli"
"github.com/docker/docker/cli/command"
"github.com/spf13/cobra"
"golang.org/x/net/context"
)
func newCreateCommand(dockerCli *command.DockerCli) *cobra.Command {
opts := newServiceOptions()
cmd := &cobra.Command{
Use: "create [OPTIONS] IMAGE [COMMAND] [ARG...]",
Short: "Create a new service",
Args: cli.RequiresMinArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.image = args[0]
if len(args) > 1 {
opts.args = args[1:]
}
return runCreate(dockerCli, opts)
},
}
flags := cmd.Flags()
flags.StringVar(&opts.mode, flagMode, "replicated", "Service mode (replicated or global)")
flags.StringVar(&opts.name, flagName, "", "Service name")
addServiceFlags(cmd, opts)
flags.VarP(&opts.labels, flagLabel, "l", "Service labels")
flags.Var(&opts.containerLabels, flagContainerLabel, "Container labels")
flags.StringVar(&opts.hostname, flagHostname, "", "Container hostname")
flags.VarP(&opts.env, flagEnv, "e", "Set environment variables")
flags.Var(&opts.envFile, flagEnvFile, "Read in a file of environment variables")
flags.Var(&opts.mounts, flagMount, "Attach a filesystem mount to the service")
flags.Var(&opts.constraints, flagConstraint, "Placement constraints")
flags.Var(&opts.networks, flagNetwork, "Network attachments")
flags.Var(&opts.secrets, flagSecret, "Specify secrets to expose to the service")
flags.VarP(&opts.endpoint.publishPorts, flagPublish, "p", "Publish a port as a node port")
flags.MarkHidden(flagPublish)
flags.Var(&opts.groups, flagGroup, "Set one or more supplementary user groups for the container")
flags.Var(&opts.dns, flagDNS, "Set custom DNS servers")
flags.Var(&opts.dnsOption, flagDNSOption, "Set DNS options")
flags.Var(&opts.dnsSearch, flagDNSSearch, "Set custom DNS search domains")
flags.Var(&opts.hosts, flagHost, "Set one or more custom host-to-IP mappings (host:ip)")
flags.Var(&opts.endpoint.expandedPorts, flagPort, "Publish a port")
flags.SetInterspersed(false)
return cmd
}
func runCreate(dockerCli *command.DockerCli, opts *serviceOptions) error {
apiClient := dockerCli.Client()
createOpts := types.ServiceCreateOptions{}
service, err := opts.ToService()
if err != nil {
return err
}
specifiedSecrets := opts.secrets.Value()
if len(specifiedSecrets) > 0 {
// parse and validate secrets
secrets, err := parseSecrets(apiClient, specifiedSecrets)
if err != nil {
return err
}
service.TaskTemplate.ContainerSpec.Secrets = secrets
}
ctx := context.Background()
// only send auth if flag was set
if opts.registryAuth {
// Retrieve encoded auth token from the image reference
encodedAuth, err := command.RetrieveAuthTokenFromImage(ctx, dockerCli, opts.image)
if err != nil {
return err
}
createOpts.EncodedRegistryAuth = encodedAuth
}
response, err := apiClient.ServiceCreate(ctx, service, createOpts)
if err != nil {
return err
}
for _, warning := range response.Warnings {
fmt.Fprintln(dockerCli.Err(), warning)
}
fmt.Fprintf(dockerCli.Out(), "%s\n", response.ID)
return nil
}