v2: implement log{in,out}

Implement podman login and logout.  Smoke tests were successful but the
system tests are currently failing as we seem unable to run a registry
at the moment.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/cmd/podman/logout.go b/cmd/podman/logout.go
new file mode 100644
index 000000000..77bdc92b4
--- /dev/null
+++ b/cmd/podman/logout.go
@@ -0,0 +1,57 @@
+package main
+
+import (
+	"os"
+
+	"github.com/containers/common/pkg/auth"
+	"github.com/containers/image/v5/types"
+	"github.com/containers/libpod/cmd/podman/registry"
+	"github.com/containers/libpod/pkg/domain/entities"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+var (
+	logoutOptions = auth.LogoutOptions{}
+	logoutCommand = &cobra.Command{
+		Use:   "logout [flags] REGISTRY",
+		Short: "Logout of a container registry",
+		Long:  "Remove the cached username and password for the registry.",
+		RunE:  logout,
+		Args:  cobra.MaximumNArgs(1),
+		Example: `podman logout quay.io
+  podman logout --authfile dir/auth.json quay.io
+  podman logout --all`,
+	}
+)
+
+func init() {
+	// Note that the local and the remote client behave the same: both
+	// store credentials locally while the remote client will pass them
+	// over the wire to the endpoint.
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Mode:    []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+		Command: logoutCommand,
+	})
+	flags := logoutCommand.Flags()
+
+	// Flags from the auth package.
+	flags.AddFlagSet(auth.GetLogoutFlags(&logoutOptions))
+	logoutOptions.Stdin = os.Stdin
+	logoutOptions.Stdout = os.Stdout
+}
+
+// Implementation of podman-logout.
+func logout(cmd *cobra.Command, args []string) error {
+	sysCtx := types.SystemContext{AuthFilePath: logoutOptions.AuthFile}
+
+	registry := ""
+	if len(args) > 0 {
+		if logoutOptions.All {
+			return errors.New("--all takes no arguments")
+		}
+		registry = args[0]
+	}
+
+	return auth.Logout(&sysCtx, &logoutOptions, registry)
+}