chore: validate test images don't exist on remote before building

.github/workflows/test-containers-build.yml

@@ -60,6 +60,8 @@ jobs:
       - should-build-test-containers
     if: needs.should-build-test-containers.outputs.build-image == 'true' ||
         contains(github.event.pull_request.labels.*.name, 'rebuild-test-container')
+    env:
+      FACT_QA_TAG: ${{ needs.determine-qa-tag.outputs.qa-tag }}
 
     steps:
       - uses: actions/checkout@v7
@@ -77,9 +79,48 @@ jobs:
           username: ${{ secrets.QUAY_RHACS_ENG_RW_USERNAME }}
           password: ${{ secrets.QUAY_RHACS_ENG_RW_PASSWORD }}
 
+      - name: Check images already exist
+        id: images-exist
+        run: |
+          manifest_exists() {
+            local image=$1 output
+            if output=$(docker manifest inspect "${image}" 2>&1); then
+              return 0
+            elif echo "${output}" | grep -Eiq 'no such manifest:|manifest unknown'; then
+              return 1
+            else
+              printf '%s: %s\n' "${image}" "${output}" >&2
+              return 2
+            fi
+          }
+
+          image_names=$(make --no-print-directory -s \
+            -C "${GITHUB_WORKSPACE}/tests/containers" image-names) || exit $?
+
+          EXIST=true
+          while IFS= read -r image_name; do
+            [[ -z "${image_name}" ]] && continue
+            if manifest_exists "${image_name}"; then
+              continue
+            else
+              status=$?
+            fi
+
+            if [[ "${status}" -eq 1 ]]; then
+              EXIST=false
+            else
+              exit "${status}"
+            fi
+          done <<< "${image_names}"
+
+          if [[ "${EXIST}" == false ]]; then
+            echo "::notice::At least one test container manifest is absent"
+          fi
+          echo "exist=${EXIST}" >> "${GITHUB_OUTPUT}"
+
       - name: Build and Push containers
+        if: steps.images-exist.outputs.exist == 'false' || contains(github.event.pull_request.labels.*.name, 'rebuild-test-container')
         env:
-          FACT_QA_TAG: ${{ needs.determine-qa-tag.outputs.qa-tag }}
           PLATFORM: linux/amd64,linux/arm64
         run: |
           make -C "${GITHUB_WORKSPACE}/tests/containers" build-and-push

tests/containers/Makefile

@@ -1,6 +1,6 @@
 include constants.mk
 
-TARGETS := build build-and-push
+TARGETS := build build-and-push image-names
 DIRS := $(wildcard ./*/)
 
 $(TARGETS): $(DIRS)

tests/containers/base/Makefile

@@ -16,4 +16,7 @@ build: run
 build-and-push: BUILD_ARGS = --push
 build-and-push: run
 
-.PHONY: build build-and-push all run
+image-names:
+	@echo quay.io/rhacs-eng/qa-multi-arch:$(FACT_QA_BASE_TAG)
+
+.PHONY: build build-and-push all run image-names

tests/containers/editors/Makefile

@@ -16,4 +16,7 @@ build: run
 build-and-push: BUILD_ARGS = --push
 build-and-push: run
 
-.PHONY: build build-and-push all run
+image-names:
+	@echo quay.io/rhacs-eng/qa-multi-arch:$(FACT_QA_EDITORS_TAG)
+
+.PHONY: build build-and-push all run image-names

tests/containers/self-deleter/Makefile

@@ -16,4 +16,7 @@ build: run
 build-and-push: BUILD_ARGS = --push
 build-and-push: run
 
-.PHONY: build build-and-push all run
+image-names:
+	@echo quay.io/rhacs-eng/qa-multi-arch:$(FACT_QA_SELF_DELETER_TAG)
+
+.PHONY: build build-and-push all run image-names