feat(cli): provide imagepullsecret option for container as function (#2680)

Signed-off-by: Shubham Nazare <shubham4443@gmail.com>

pkg/fission-cli/flag/flag.go

@@ -96,6 +96,7 @@ var (
 	RunTimeTargetCPU     = Flag{Type: Int, Name: flagkey.RuntimeTargetcpu, Usage: "Target average CPU usage percentage across pods for scaling", DefaultValue: 80}
 	RunTimeMinMemory     = Flag{Type: Int, Name: flagkey.RuntimeMinmemory, Usage: "Minimum memory to be assigned to pod (In megabyte)"}
 	RunTimeMaxMemory     = Flag{Type: Int, Name: flagkey.RuntimeMaxmemory, Usage: "Maximum memory to be assigned to pod (In megabyte)"}
+	RunImagePullSecret   = Flag{Type: String, Name: flagkey.RunImagePullSecret, Usage: "Secret for Kubernetes to pull an image from a private registry"}
 
 	ReplicasMin = Flag{Type: Int, Name: flagkey.ReplicasMinscale, Usage: "Minimum number of pods (Uses resource inputs to configure HPA)", DefaultValue: 1}
 	ReplicasMax = Flag{Type: Int, Name: flagkey.ReplicasMaxscale, Usage: "Maximum number of pods (Uses resource inputs to configure HPA)", DefaultValue: 1}

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

@@ -44,11 +44,12 @@ const (
 	NamespacePod         = "pod-namespace"
 	ForceDelete          = "force"
 
-	RuntimeMincpu    = "mincpu"
-	RuntimeMaxcpu    = "maxcpu"
-	RuntimeMinmemory = "minmemory"
-	RuntimeMaxmemory = "maxmemory"
-	RuntimeTargetcpu = "targetcpu"
+	RuntimeMincpu      = "mincpu"
+	RuntimeMaxcpu      = "maxcpu"
+	RuntimeMinmemory   = "minmemory"
+	RuntimeMaxmemory   = "maxmemory"
+	RuntimeTargetcpu   = "targetcpu"
+	RunImagePullSecret = "imagepullsecret"
 
 	ReplicasMinscale = "minscale"
 	ReplicasMaxscale = "maxscale"