Ian Wienand 0a64d51c3d
promote-container-image: add promote_container_image_method
After recent conversations, we've come to the conclusion it will be
good to have two models of promotion

 - using tags, where gate directly uploads to the final repository and
   promote retags the image.

 - from an intermediate-registry, where upload stores the built image
   in an i-r and the promote step uploads to the final registry.

To facilitate this, we add a "promote_container_image_method" flag to
the promote roles.

The documentation is expanded to explain how all this is intended to
work together.

These roles haven't been publicised yet, but this should be a no-op as
it defaults to tags, which is the current operation.

c.f. Ia24bbd101e01ab371ceacfed006b5ff806418a97

Change-Id: I1c25f60f835b1cab983bcdd169eeffc0e250a56c
2023-04-04 09:50:17 +10:00

458 B

Promote one or more previously uploaded container images.