77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
package registry
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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/cli"
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"github.com/docker/docker/cli/command"
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"github.com/docker/docker/registry"
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"github.com/spf13/cobra"
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)
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// NewLogoutCommand creates a new `docker login` command
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func NewLogoutCommand(dockerCli *command.DockerCli) *cobra.Command {
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cmd := &cobra.Command{
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Use: "logout [SERVER]",
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Short: "Log out from a Docker registry",
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Long: "Log out from a Docker registry.\nIf no server is specified, the default is defined by the daemon.",
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Args: cli.RequiresMaxArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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var serverAddress string
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if len(args) > 0 {
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serverAddress = args[0]
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}
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return runLogout(dockerCli, serverAddress)
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},
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}
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return cmd
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}
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func runLogout(dockerCli *command.DockerCli, serverAddress string) error {
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ctx := context.Background()
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var isDefaultRegistry bool
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if serverAddress == "" {
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serverAddress = command.ElectAuthServer(ctx, dockerCli)
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isDefaultRegistry = true
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}
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var (
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loggedIn bool
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regsToLogout []string
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hostnameAddress = serverAddress
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regsToTry = []string{serverAddress}
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)
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if !isDefaultRegistry {
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hostnameAddress = registry.ConvertToHostname(serverAddress)
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// the tries below are kept for backward compatibility where a user could have
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// saved the registry in one of the following format.
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regsToTry = append(regsToTry, hostnameAddress, "http://"+hostnameAddress, "https://"+hostnameAddress)
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}
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// check if we're logged in based on the records in the config file
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// which means it couldn't have user/pass cause they may be in the creds store
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for _, s := range regsToTry {
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if _, ok := dockerCli.ConfigFile().AuthConfigs[s]; ok {
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loggedIn = true
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regsToLogout = append(regsToLogout, s)
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}
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}
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if !loggedIn {
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fmt.Fprintf(dockerCli.Out(), "Not logged in to %s\n", hostnameAddress)
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return nil
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}
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fmt.Fprintf(dockerCli.Out(), "Removing login credentials for %s\n", hostnameAddress)
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for _, r := range regsToLogout {
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if err := dockerCli.CredentialsStore().Erase(r); err != nil {
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fmt.Fprintf(dockerCli.Err(), "WARNING: could not erase credentials: %v\n", err)
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}
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}
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return nil
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}
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