DockerCLI/cli/command/registry/logout.go

70 lines
1.9 KiB
Go

package registry
import (
"context"
"fmt"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/docker/registry"
"github.com/spf13/cobra"
)
// NewLogoutCommand creates a new `docker logout` command
func NewLogoutCommand(dockerCli command.Cli) *cobra.Command {
cmd := &cobra.Command{
Use: "logout [SERVER]",
Short: "Log out from a Docker registry",
Long: "Log out from a Docker registry.\nIf no server is specified, the default is defined by the daemon.",
Args: cli.RequiresMaxArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
var serverAddress string
if len(args) > 0 {
serverAddress = args[0]
}
return runLogout(dockerCli, serverAddress)
},
}
return cmd
}
func runLogout(dockerCli command.Cli, serverAddress string) error {
ctx := context.Background()
var isDefaultRegistry bool
if serverAddress == "" {
serverAddress = command.ElectAuthServer(ctx, dockerCli)
isDefaultRegistry = true
}
var (
regsToLogout = []string{serverAddress}
hostnameAddress = serverAddress
)
if !isDefaultRegistry {
hostnameAddress = registry.ConvertToHostname(serverAddress)
// the tries below are kept for backward compatibility where a user could have
// saved the registry in one of the following format.
regsToLogout = append(regsToLogout, hostnameAddress, "http://"+hostnameAddress, "https://"+hostnameAddress)
}
fmt.Fprintf(dockerCli.Out(), "Removing login credentials for %s\n", hostnameAddress)
errs := make(map[string]error)
for _, r := range regsToLogout {
if err := dockerCli.ConfigFile().GetCredentialsStore(r).Erase(r); err != nil {
errs[r] = err
}
}
// if at least one removal succeeded, report success. Otherwise report errors
if len(errs) == len(regsToLogout) {
fmt.Fprintln(dockerCli.Err(), "WARNING: could not erase credentials:")
for k, v := range errs {
fmt.Fprintf(dockerCli.Err(), "%s: %s\n", k, v)
}
}
return nil
}