Fix: Cannot locally test azul-docker-elasticsearch changes (DataBiosp…

…here/azul#5986, PR #4)

.github/workflows/docker-publish.yml

@@ -3,8 +3,8 @@ name: Docker
 on:
   pull_request:
   push:
-    branches-ignore:
-      - "*-PR"
+    branches:
+      - main
 
 env:
   # The fully qualified image name of the image to build. The first component is
@@ -78,7 +78,9 @@ jobs:
             env.azul_docker_registry,
             env.azul_docker_elasticsearch_image
           ) }}"
-          cache-to: "${{ format(
+          # The value after '&&' in a ternary operator must be truthy, and since
+          # an empty string is falsy, we use ' ' instead.
+          cache-to: "${{ github.event_name == 'pull_request' && ' ' || format(
             'type=registry,ref={0}{1}_buildcache,mode=max',
             env.azul_docker_registry,
             env.azul_docker_elasticsearch_image

README.md

@@ -15,7 +15,26 @@ docker pull localhost:5000/docker.io/ucscgi/azul-elasticsearch:7.17.15-6
 # To examine the image for vulnerabilities, browse the image in Docker Desktop.
 # If an unnecessary package is found to have critical or high vulnerabilities,
 # add a `RUN` instruction to the Dockerfile to remove the package.
-# To test the image in Azul, run:
-(cd ../azul && azul_docker_elasticsearch_version=7.17.15-6 azul_docker_registry=localhost:5000/ make test)
+# To test the image in Azul, you will need to temporarily modify Azul's
+# `environment.py` to set the appropriate `azul_docker_images` value using the
+# full image name noted above (starting with "localhost").
+cd ../azul
+git diff
+>   diff --git a/environment.py b/environment.py
+>   index f888a1b8e..5970816ac 100644
+>   --- a/environment.py
+>   +++ b/environment.py
+>   @@ -276,7 +276,7 @@ def env() -> Mapping[str, Optional[str]]:
+>                    'ref': 'docker.io/ucscgi/azul-pycharm:2023.3.4-15'
+>                },
+>                'elasticsearch': {
+>   -                'ref': 'docker.io/ucscgi/azul-elasticsearch:7.17.18-13'
+>   +                'ref': 'localhost:5000/docker.io/ucscgi/azul-elasticsearch:7.17.18-13'
+>                },
+>                'bigquery_emulator': {
+>                    'ref': 'ghcr.io/hannes-ucsc/bigquery-emulator:azul'
+make image_manifests.json
+azul_docker_registry="" make test
+cd -
 make stop_registry
 ```