gcloud container images add-tag

NAME
gcloud container images add-tag - adds tags to existing image
SYNOPSIS
gcloud container images add-tag SRC_IMAGE DEST_IMAGE [DEST_IMAGE …] [GCLOUD_WIDE_FLAG …]
DESCRIPTION
The container images add-tag command adds the tag(s) specified in the second (and following) tag parameter(s) to the image referenced in the first tag parameter. Repositories must be hosted by the Google Container Registry.
EXAMPLES
Add a tag to another tag: 
gcloud container images add-tag gcr.io/myproject/myimage:mytag1 gcr.io/myproject/myimage:mytag2

Add a tag to a digest 

gcloud container images add-tag gcr.io/myproject/myimage@sha256:digest gcr.io/myproject/myimage:mytag2

Add a tag to latest 

gcloud container images add-tag gcr.io/myproject/myimage gcr.io/myproject/myimage:mytag2

Promote a tag to latest 

gcloud container images add-tag gcr.io/myproject/myimage:mytag1 gcr.io/myproject/myimage:latest
POSITIONAL ARGUMENTS
SRC_IMAGE
The fully qualified name(s) of image(s) to add tags for. The name(s) should be formatted as *.gcr.io/PROJECT_ID/IMAGE_PATH@sha256:DIGEST or *.gcr.io/PROJECT_ID/IMAGE_PATH:TAG.
DEST_IMAGE [DEST_IMAGE …]
The fully qualified name(s) of image(s) to be the new tags. The name(s) should be formatted as *.gcr.io/PROJECT_ID/IMAGE_PATH:TAG.
GCLOUD WIDE FLAGS
These flags are available to all commands: --access-token-file, --account, --billing-project, --configuration, --flags-file, --flatten, --format, --help, --impersonate-service-account, --log-http, --project, --quiet, --trace-token, --user-output-enabled, --verbosity.

Run $ gcloud help for details.

NOTES
These variants are also available: 
gcloud alpha container images add-tag
 
gcloud beta container images add-tag