I've just noticed a couple of more things which could be considered as part of this issue too, or separate issues created:

• The prometheus image being used points to the v3.9 tag on the container catalog. We may need to think/talk about what version it should use, and how we keep it up-to-date.
• There's an oauth-proxy image that's used in this APB, but it points to the image from OpenShift on docker.io (rather than the container catalog, like the prometheus image): https://github.com/aerogearcatalog/metrics-apb/blob/20c2cd0a4bfd56a5ed1e22a3598f47327d80504c/roles/provision-metrics-apb/defaults/main.yml#L29
• The tag for the aerogear-app-metrics image is very specific (0.0.12), so if we release a new version, we'd need to update the APB. I think maybe we should release a new version (1.0.0?) soon, and let the APB point to either 1 or 1.0 (and keep those tags matching whatever is latest for matchers). This way, we won't need to update the APB every time we make any trivial fix.