Added support for kube-context flag, to specify kubernetes context (#1595)

pkg/fission-cli/flag/flag.go

@@ -72,6 +72,8 @@ var (
 
 	ClientOnly = Flag{Type: Bool, Name: flagkey.ClientOnly, Usage: "If set, the CLI won't connect to remote server"}
 
+	KubeContext = Flag{Type: String, Name: flagkey.KubeContext, Usage: "Kubernetes context to be used for the execution of Fission commands", DefaultValue: ""}
+
 	NamespaceFunction    = Flag{Type: String, Name: flagkey.NamespaceFunction, Aliases: []string{"fns"}, Usage: "Namespace for function object", DefaultValue: metav1.NamespaceDefault}
 	NamespaceEnvironment = Flag{Type: String, Name: flagkey.NamespaceEnvironment, Aliases: []string{"envns"}, Usage: "Namespace for environment object", DefaultValue: metav1.NamespaceDefault}
 	NamespacePackage     = Flag{Type: String, Name: flagkey.NamespacePackage, Aliases: []string{"pkgns"}, Usage: "Namespace for package object", DefaultValue: metav1.NamespaceDefault}

pkg/fission-cli/flag/key/key.go

@@ -17,9 +17,10 @@ limitations under the License.
 package flagkey
 
 const (
-	Verbosity  = "verbosity"
-	Server     = "server"
-	ClientOnly = "client-only"
+	Verbosity   = "verbosity"
+	Server      = "server"
+	ClientOnly  = "client-only"
+	KubeContext = "kube-context"
 
 	resourceName = "name"
 	force        = "force"