Add comments so dockerfiles can be updated by update-base-images (#46)

* Add comments so dockerfiles can be updated by update-base-images

Signed-off-by: sdawley <[email protected]>

* publish a :latest tag too

Signed-off-by: Nick Boldt <[email protected]>

* cannot use updateBaseImages.sh on SHA-based tags as they're not date-based or semver-sequential, and therefore cannot be ordered

Signed-off-by: Nick Boldt <[email protected]>

Signed-off-by: sdawley <[email protected]>
Signed-off-by: Nick Boldt <[email protected]>
Co-authored-by: Nick Boldt <[email protected]>

Author: SDawley

.github/workflows/ubi8-build.yaml

@@ -40,6 +40,7 @@ jobs:
           push: ${{ github.event_name != 'pull_request' }}
           context: base/ubi8
           tags: |
+            quay.io/devfile/base-developer-image:latest
             ${{ steps.meta.outputs.tags }}
 
   build_universal_ubi8_image:

base/ubi8/Dockerfile

@@ -1,6 +1,7 @@
 # syntax=docker/dockerfile:1.3-labs
 
-FROM registry.access.redhat.com/ubi8/ubi
+# https://registry.access.redhat.com/ubi8
+FROM registry.access.redhat.com/ubi8/ubi:8.7-1026
 LABEL maintainer="Red Hat, Inc."
 
 LABEL com.redhat.component="devfile-base-container"

universal/ubi8/Dockerfile

@@ -1,5 +1,6 @@
 # syntax=docker/dockerfile:1.3-labs
 
+# updateBaseImages.sh can't operate on SHA-based tags as they're not date-based or semver-sequential, and therefore cannot be ordered
 FROM quay.io/devfile/base-developer-image:ubi8-latest
 LABEL maintainer="Red Hat, Inc."