Support for building multiple tags
Description
We are now able to build images using a single command:
$ /usr/bin/gitlabktl app build
Sometimes, however, when you are building an app you want to tag and retag or push multiple tags at the same time.
Proposal
Add support for pushing multiple tags:
$ /usr/bin/gitlabktl app build --tag v0.4.0 --alias latest
Kaniko already supports this.
Edited by Grzegorz Bizon