Arvados

• arv-keepdocker should set collection properties["docker-image-repo-tag"] when adding (already done in #16046, #17508)
• arv-keepdocker should set collection properties["docker-image-hash"]
• arv-keepdocker should search collections with properties["docker-image-repo-tag"] instead of "docker_image_repo+tag" links
• arvados-cwl-runner should search collections with properties["docker-image-repo-tag"] instead of "docker_image_repo+tag" links
• RailsAPI "resolve docker image spec to container" code should search collection properties for given repo:tag or hash, instead of searching links
• RailsAPI data migration should copy any pre-existing "docker-image-repo+tag" and "-hash" properties from links into collection properties

Related: Build docker images as part of a workflow