Run conformance tests for Arm images in this repo

This is a follow-up to #6486, which added support for building Antrea
Arm images in the antrea-io/antrea repo, using Github-hosted Arm
runners.

With this change, we will also be testing Arm images in this repo,
hence finishing to remove our dependency on a private reposiotry, with
self-hosted runners (vmware-tanzu/antrea-build-infra).

This change is very small, as we re-use the existing conformance.yml
workflow, and add a dispatch step to the build.yml and build_tag.yml
workflows (same repo dispatch, instead of dispatching to
vmware-tanzu/antrea-build-infra, as was the case previously). Using
Sonobuoy, we run the conformance test suite every time the main branch
is updated, as well as for every release. Unfortunately, we have to
re-build the image before running the tests, but thanks to caching it
only represents a small amount of time.

We also remove some deprecated maintainer documentation.

Fixes #6453

Signed-off-by: Antonin Bas <[email protected]>

.github/workflows/build.yml

@@ -83,6 +83,13 @@ jobs:
         docker tag antrea/antrea-agent-ubuntu:"${DOCKER_TAG}" antrea/antrea-agent-ubuntu-${{ matrix.suffix }}:"${DOCKER_TAG}"
         docker push antrea/antrea-controller-ubuntu-${{ matrix.suffix }}:"${DOCKER_TAG}"
         docker push antrea/antrea-agent-ubuntu-${{ matrix.suffix }}:"${DOCKER_TAG}"
+    # Same repository workflow dispatch to run conformance tests
+    - name: Run conformance tests
+      if: ${{ needs.check-env.outputs.push_needed == 'true' }}
+      uses: benc-uk/workflow-dispatch@v1
+      with:
+        workflow: .github/workflows/conformance.yml
+        inputs: ${{ format('{{ "antrea-version":"{0}", "antrea-image-distro":"ubuntu", "test-suite":"conformance", "runner":"{1}", "antrea-image-platform":"{2}" }}', github.sha, matrix.runner, matrix.platform) }}
 
   push-manifest:
     needs: [check-env, build]

.github/workflows/build_tag.yml

@@ -85,14 +85,12 @@ jobs:
           antrea/antrea-agent-ubuntu-arm:"${DOCKER_TAG}" \
           antrea/antrea-agent-ubuntu-amd64:"${DOCKER_TAG}"
         docker manifest push --purge antrea/antrea-agent-ubuntu:"${DOCKER_TAG}"
-    - name: Trigger Antrea arm tests
+    # Same repository workflow dispatch to run conformance tests
+    - name: Run conformance tests
       uses: benc-uk/workflow-dispatch@v1
       with:
-        repo: vmware-tanzu/antrea-build-infra
-        ref: refs/heads/main
-        workflow: Test Antrea ARM images
-        token: ${{ secrets.ANTREA_BUILD_INFRA_WORKFLOW_DISPATCH_PAT }}
-        inputs: ${{ format('{{ "antrea-repository":"antrea-io/antrea", "antrea-ref":"{0}", "docker-tag":"{1}" }}', github.ref, env.DOCKER_TAG) }}
+        workflow: .github/workflows/conformance.yml
+        inputs: ${{ format('{{ "antrea-version":"{0}", "antrea-image-distro":"ubuntu", "test-suite":"conformance", "runner":"{1}", "antrea-image-platform":"{2}", "always-upload-logs":true }}', github.ref, matrix.runner, matrix.platform) }}
 
   build-ubi:
     runs-on: [ubuntu-latest]

.github/workflows/conformance.yml

@@ -35,12 +35,18 @@ on:
         description: Always upload logs regardless of the test result.
         type: boolean
         default: false
+      runner:
+        description: The Github runner to use for the workflow
+        default: ubuntu-latest
+      antrea-image-platform:
+        description: Platform argument to provide when building the Antrea images
+        default: "linux/amd64"
 
 
 jobs:
   test:
     name: Run tests
-    runs-on: [ubuntu-latest]
+    runs-on: ${{ inputs.runner }}
     steps:
       - name: Free disk space
         # https://github.com/actions/virtual-environments/issues/709
@@ -70,13 +76,17 @@ jobs:
       - name: Build Antrea image if required
         if: ${{ steps.check-release.outputs.released == 'false' }}
         run: |
-          ./hack/build-antrea-linux-all.sh --pull --distro ${{ inputs.antrea-image-distro }}
-      - name: Install Kind
+          ./hack/build-antrea-linux-all.sh --pull --distro ${{ inputs.antrea-image-distro }} --platform ${{ inputs.antrea-image-platform }}
+      - name: Get Kind version
+        id: get_kind_version
         run: |
           KIND_VERSION=$(head -n1 ./ci/kind/version || echo v0.23.0)
-          curl -Lo ./kind https://github.com/kubernetes-sigs/kind/releases/download/${KIND_VERSION}/kind-$(uname)-amd64
-          chmod +x ./kind
-          sudo mv kind /usr/local/bin
+          echo "kind_version=${KIND_VERSION}" >> $GITHUB_OUTPUT
+      - name: Install Kind
+        uses: helm/kind-action@v1
+        with:
+          version: ${{ steps.get_kind_version.outputs.kind_version }}
+          install_only: true
       - name: Build local image for conformance test
         if: ${{ inputs.k8s-version != '' }}
         run: |