ci: test --version after build

Author: sdn4z

.github/actions/docker-build/action.yml

@@ -1,16 +1,21 @@
 # Action that wraps together all the necessary actions to build an image and publish it.
 # It does not include login actions.
 # This is a convenience, so that we know that everything related to the build lies in this file,
-# and if it gets updated we can automatically run our `test-docker-build` from `build-test.yml.`
+# and if it gets updated we can automatically run our `test-docker-build` from `build-test.yml.`,
+# so there is no confusion about which is the job that was updated, if there are many in the same workflow file.
 
 name: "Docker Build"
 description: "Builds Docker images with optional caching and multi-platform support"
 
 inputs:
-  push-image:
+  push:
     description: "Whether to push the built image"
     required: false
     default: "false"
+  load:
+    description: "Whether to load the built image"
+    required: false
+    default: "false"
   platforms:
     description: "Target platforms for the build"
     required: false
@@ -55,9 +60,10 @@ runs:
       with:
         context: ${{ inputs.context }}
         file: ${{ inputs.dockerfile }}
-        push: ${{ inputs['push-image'] }}
+        push: ${{ inputs.push }}
         platforms: ${{ inputs.platforms }}
         tags: ${{ steps.meta.outputs.tags }}
         labels: ${{ steps.meta.outputs.labels }}
         cache-from: ${{ inputs['cache-from'] }}
         cache-to: ${{ inputs['cache-to'] }}
+        load: ${{ inputs.load }}

.github/workflows/build-test.yml

@@ -96,6 +96,11 @@ jobs:
           context: .
           file: ./Dockerfile
           push: false
+          load: true
           platforms: linux/amd64,linux/arm64
           cache-from: type=registry,ref=ghcr.io/elementsinteractive/twyn:buildcache
-       
+          tags: test-build
+      
+      - name: Test
+        run: |
+          docker run --rm test-build --version

.github/workflows/publish.yml

@@ -53,7 +53,7 @@ jobs:
       - name: Build and push Docker image
         uses: ./.github/actions/docker-build
         with:
-          push-image: "true"
+          push: "true"
           platforms: linux/amd64,linux/arm64
           dockerfile: ./Dockerfile
           context: .