CLI Check (#2341)

* added checks for kubernetes-version, fission-services and fission-version

* refactor kuberntes and fission version check

cmd/fission-cli/app/app.go

@@ -1,3 +1,16 @@
+/*
+Copyright 2022 The Fission Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 package app
 
 import (
@@ -10,6 +23,7 @@ import (
 	"github.com/fission/fission/pkg/fission-cli/cliwrapper/driver/cobra/helptemplate"
 	"github.com/fission/fission/pkg/fission-cli/cmd"
 	"github.com/fission/fission/pkg/fission-cli/cmd/canaryconfig"
+	"github.com/fission/fission/pkg/fission-cli/cmd/check"
 	"github.com/fission/fission/pkg/fission-cli/cmd/environment"
 	"github.com/fission/fission/pkg/fission-cli/cmd/function"
 	"github.com/fission/fission/pkg/fission-cli/cmd/httptrigger"
@@ -83,7 +97,7 @@ func App() *cobra.Command {
 	groups = append(groups, helptemplate.CreateCmdGroup("Trigger Commands", httptrigger.Commands(), mqtrigger.Commands(), timetrigger.Commands(), kubewatch.Commands()))
 	groups = append(groups, helptemplate.CreateCmdGroup("Deploy Strategies Commands", canaryconfig.Commands()))
 	groups = append(groups, helptemplate.CreateCmdGroup("Declarative Application Commands", spec.Commands()))
-	groups = append(groups, helptemplate.CreateCmdGroup("Other Commands", support.Commands(), version.Commands()))
+	groups = append(groups, helptemplate.CreateCmdGroup("Other Commands", support.Commands(), version.Commands(), check.Commands()))
 	groups.Add(rootCmd)
 
 	flagExposer := helptemplate.ActsAsRootCommand(rootCmd, nil, groups...)