Labels and annotation support for functions and environments (#2113)

1. Support for adding labels and annotations to functions & environment via fission CLI through create & update command.
2. Change ensures labels and annotations assigned to the environment would reflect on pods created via executor type pool manager and new deploy.

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

pkg/fission-cli/cmd/environment/command.go

@@ -31,10 +31,13 @@ func Commands() *cobra.Command {
 	}
 	wrapper.SetFlags(createCmd, flag.FlagSet{
 		Required: []flag.Flag{flag.EnvName, flag.EnvImage},
-		Optional: []flag.Flag{flag.EnvPoolsize, flag.EnvBuilderImage, flag.EnvBuildCmd,
+		Optional: []flag.Flag{
+			flag.EnvPoolsize, flag.EnvBuilderImage, flag.EnvBuildCmd,
 			flag.RunTimeMinCPU, flag.RunTimeMaxCPU, flag.RunTimeMinMemory, flag.RunTimeMaxMemory,
-			flag.EnvTerminationGracePeriod, flag.EnvVersion, flag.EnvImagePullSecret,
-			flag.EnvExternalNetwork, flag.EnvKeepArchive, flag.NamespaceEnvironment, flag.SpecSave, flag.SpecDry},
+			flag.EnvTerminationGracePeriod, flag.EnvVersion, flag.EnvImagePullSecret, flag.EnvKeepArchive,
+			flag.NamespaceEnvironment, flag.EnvExternalNetwork,
+			flag.Labels, flag.Annotation,
+			flag.SpecSave, flag.SpecDry},
 	})
 
 	getCmd := &cobra.Command{
@@ -57,7 +60,9 @@ func Commands() *cobra.Command {
 		Optional: []flag.Flag{flag.EnvImage, flag.EnvPoolsize,
 			flag.EnvBuilderImage, flag.EnvBuildCmd, flag.EnvImagePullSecret,
 			flag.RunTimeMinCPU, flag.RunTimeMaxCPU, flag.RunTimeMinMemory, flag.RunTimeMaxMemory,
-			flag.EnvTerminationGracePeriod, flag.EnvKeepArchive, flag.NamespaceEnvironment, flag.EnvExternalNetwork},
+			flag.EnvTerminationGracePeriod, flag.EnvKeepArchive,
+			flag.NamespaceEnvironment, flag.EnvExternalNetwork,
+			flag.Labels, flag.Annotation},
 	})
 
 	deleteCmd := &cobra.Command{

pkg/fission-cli/cmd/environment/create.go

@@ -179,6 +179,10 @@ func createEnvironmentFromCmd(input cli.Input) (*fv1.Environment, error) {
 		},
 	}
 
+	err = util.ApplyLabelsAndAnnotations(input, &env.ObjectMeta)
+	if err != nil {
+		return nil, err
+	}
 	err = env.Validate()
 	if err != nil {
 		return nil, fv1.AggregateValidationErrors("Environment", err)

pkg/fission-cli/cmd/environment/update.go

@@ -31,6 +31,7 @@ import (
 	"github.com/fission/fission/pkg/fission-cli/cmd"
 	"github.com/fission/fission/pkg/fission-cli/console"
 	flagkey "github.com/fission/fission/pkg/fission-cli/flag/key"
+	"github.com/fission/fission/pkg/fission-cli/util"
 	"github.com/fission/fission/pkg/utils"
 )
 
@@ -66,6 +67,11 @@ func (opts *UpdateSubCommand) complete(input cli.Input) error {
 	}
 
 	opts.env = env
+
+	err = util.ApplyLabelsAndAnnotations(input, &opts.env.ObjectMeta)
+	if err != nil {
+		return err
+	}
 	return nil
 }