Hide image verify/sign subcommands and hide -s, -k, -a push flags

docs/docs/100-reference/01-command-line/acorn_image.md

@@ -43,6 +43,4 @@ acorn images
 * [acorn image copy](acorn_image_copy.md)	 - Copy Acorn images between registries
 * [acorn image details](acorn_image_details.md)	 - Show details of an Image
 * [acorn image rm](acorn_image_rm.md)	 - Delete an Image
-* [acorn image sign](acorn_image_sign.md)	 - Sign an Image
-* [acorn image verify](acorn_image_verify.md)	 - Verify Image Signatures
 

docs/docs/100-reference/01-command-line/acorn_push.md

@@ -12,10 +12,7 @@ acorn push [flags] IMAGE
 ### Options
 
 ```
-  -h, --help                           help for push
-  -k, --key string                     Key to use for signing (default "./cosign.key")
-  -s, --sign                           Sign the image before pushing
-  -a, --signature-annotation strings   Annotations to add to the signature
+  -h, --help   help for push
 ```
 
 ### Options inherited from parent commands

pkg/cli/images_sign.go

@@ -28,6 +28,7 @@ func NewImageSign(c CommandContext) *cobra.Command {
 		Short:             "Sign an Image",
 		ValidArgsFunction: newCompletion(c.ClientFactory, imagesCompletion(true)).complete,
 		Args:              cobra.ExactArgs(1),
+		Hidden:            true,
 	})
 	_ = cmd.MarkFlagFilename("key")
 	return cmd

pkg/cli/images_verify.go

@@ -28,6 +28,7 @@ acorn image verify my-image --key acorn://ibuildthecloud
 		Short:             "Verify Image Signatures",
 		ValidArgsFunction: newCompletion(c.ClientFactory, imagesCompletion(true)).complete,
 		Args:              cobra.ExactArgs(1),
+		Hidden:            true,
 	})
 	_ = cmd.MarkFlagFilename("key")
 	return cmd

pkg/cli/push.go

@@ -20,9 +20,9 @@ func NewPush(c CommandContext) *cobra.Command {
 
 type Push struct {
 	client               ClientFactory
-	Sign                 bool              `usage:"Sign the image before pushing" short:"s" local:"true" default:"false"`
-	Key                  string            `usage:"Key to use for signing" short:"k" local:"true" default:"./cosign.key"`
-	SignatureAnnotations map[string]string `usage:"Annotations to add to the signature" short:"a" local:"true" name:"signature-annotation"`
+	Sign                 bool              `hidden:"true" usage:"Sign the image before pushing" short:"s" local:"true" default:"false" `
+	Key                  string            `hidden:"true" usage:"Key to use for signing" short:"k" local:"true" default:"./cosign.key"`
+	SignatureAnnotations map[string]string `hidden:"true" usage:"Annotations to add to the signature" short:"a" local:"true" name:"signature-annotation"`
 }
 
 func (s *Push) Run(cmd *cobra.Command, args []string) error {