feat: implement scheduler-k3s:show-config

plugins/scheduler-k3s/Makefile

@@ -1,4 +1,4 @@
-SUBCOMMANDS = subcommands/initialize subcommands/report subcommands/set
+SUBCOMMANDS = subcommands/initialize subcommands/report subcommands/set subcommands/show-kubeconfig
 TRIGGERS = triggers/install triggers/post-app-clone-setup triggers/post-app-rename-setup triggers/post-delete triggers/post-registry-login triggers/report triggers/scheduler-deploy triggers/scheduler-enter triggers/scheduler-logs triggers/scheduler-stop
 BUILD = commands subcommands triggers
 PLUGIN_NAME = scheduler-k3s

plugins/scheduler-k3s/src/subcommands/subcommands.go

@@ -44,6 +44,10 @@ func main() {
 			value = args.Arg(1)
 		}
 		err = scheduler_k3s.CommandSet(appName, property, value)
+	case "show-kubeconfig":
+		args := flag.NewFlagSet("scheduler-k3s:show-kubeconfig", flag.ExitOnError)
+		args.Parse(os.Args[2:])
+		err = scheduler_k3s.CommandShowKubeconfig()
 	default:
 		err = fmt.Errorf("Invalid plugin subcommand call: %s", subcommand)
 	}

plugins/scheduler-k3s/subcommands.go

@@ -116,3 +116,19 @@ func CommandSet(appName string, property string, value string) error {
 	common.CommandPropertySet("scheduler-k3s", appName, property, value, DefaultProperties, GlobalProperties)
 	return nil
 }
+
+// CommandShowKubeconfig displays the kubeconfig file contents
+func CommandShowKubeconfig() error {
+	if !common.FileExists(KubeConfigPath) {
+		return fmt.Errorf("Kubeconfig file does not exist: %s", KubeConfigPath)
+	}
+
+	b, err := os.ReadFile(KubeConfigPath)
+	if err != nil {
+		return fmt.Errorf("Unable to read kubeconfig file: %w", err)
+	}
+
+	fmt.Println(string(b))
+
+	return nil
+}