fix/clusterCreate: use StringSlice for k3s-server|agent-arg flag

- required due to StringArray incompatibility in Viper
Fixes #482

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## v4.1.1
+
+### Fixes
+
+- fix: `--k3s-server-arg` and `--k3s-agent-arg` didn't work (Viper StringArray incompatibility) (#482)
+
 ## v4.1.0
 
 ### Highlights

cmd/cluster/clusterCreate.go

@@ -323,10 +323,10 @@ func NewCmdClusterCreate() *cobra.Command {
 	_ = cfgViper.BindPFlag("registries.config", cmd.Flags().Lookup("registry-config"))
 
 	/* k3s */
-	cmd.Flags().StringArray("k3s-server-arg", nil, "Additional args passed to the `k3s server` command on server nodes (new flag per arg)")
+	cmd.Flags().StringSlice("k3s-server-arg", nil, "Additional args passed to the `k3s server` command on server nodes (new flag per arg)")
 	_ = cfgViper.BindPFlag("options.k3s.extraserverargs", cmd.Flags().Lookup("k3s-server-arg"))
 
-	cmd.Flags().StringArray("k3s-agent-arg", nil, "Additional args passed to the `k3s agent` command on agent nodes (new flag per arg)")
+	cmd.Flags().StringSlice("k3s-agent-arg", nil, "Additional args passed to the `k3s agent` command on agent nodes (new flag per arg)")
 	_ = cfgViper.BindPFlag("options.k3s.extraagentargs", cmd.Flags().Lookup("k3s-agent-arg"))
 
 	/* Subcommands */