[Release-1.21] Add `--server flag` to `k3s secrets-encrypt` (#5054)

.gitignore

@@ -3,7 +3,7 @@
 /.tags
 /.idea
 /.trash-cache
-/.vagrant
+.vagrant/
 /.kube
 /.cache
 /.docker

pkg/cli/cmds/secrets_encrypt.go

 package cmds
 
 import (
+	"github.com/rancher/k3s/pkg/version"
 	"github.com/urfave/cli"
 )
 
@@ -9,6 +10,13 @@ const SecretsEncryptCommand = "secrets-encrypt"
 var EncryptFlags = []cli.Flag{
 	DataDirFlag,
 	ServerToken,
+	cli.StringFlag{
+		Name:        "server, s",
+		Usage:       "(cluster) Server to connect to",
+		EnvVar:      version.ProgramUpper + "_URL",
+		Value:       "https://127.0.0.1:6443",
+		Destination: &ServerConfig.ServerURL,
+	},
 }
 
 func NewSecretsEncryptCommand(action func(*cli.Context) error, subcommands []cli.Command) cli.Command {

pkg/cli/secretsencrypt/secrets_encrypt.go

@@ -31,9 +31,6 @@ func commandPrep(app *cli.Context, cfg *cmds.Server) (config.Control, *clientacc
 	if err != nil {
 		return controlConfig, nil, err
 	}
-	if cfg.ServerURL == "" {
-		cfg.ServerURL = "https://127.0.0.1:6443"
-	}
 
 	if cfg.Token == "" {
 		fp := filepath.Join(controlConfig.DataDir, "token")