drop support for docker hub (kubernetes#2170)

Author: zetaab

.github/workflows/release-cpo.yaml

@@ -13,30 +13,6 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v3
 
-    -
-      # Add support for more platforms with QEMU (optional)
-      # https://github.com/docker/setup-qemu-action
-      name: Set up QEMU
-      uses: docker/setup-qemu-action@v2
-
-    - name: Set up Docker Buildx
-      uses: docker/setup-buildx-action@v2
-
-    - name: Login to docker hub
-      uses: docker/login-action@v2
-      with:
-        registry: docker.io
-        username: ${{ secrets.DOCKER_USERNAME }}
-        password: ${{ secrets.DOCKER_PASSWORD }}
-
-    - name: Get the version from ref
-      id: get_version
-      run: echo VERSION=${GITHUB_REF/refs\/tags\//} >> $GITHUB_OUTPUT
-
-    - name: build & publish images
-      run: |
-        make push-multiarch-images REGISTRY=docker.io/k8scloudprovider VERSION=${{ steps.get_version.outputs.VERSION }}
-
     - name: Create Release
       id: create_release
       uses: actions/create-release@v1

Makefile

@@ -38,7 +38,7 @@ GOFLAGS		:=
 TAGS		:=
 LDFLAGS		:= "-w -s -X 'k8s.io/component-base/version.gitVersion=$(VERSION)'"
 GOX_LDFLAGS	:= $(shell echo "$(LDFLAGS) -extldflags \"-static\"")
-REGISTRY	?= k8scloudprovider
+REGISTRY	?= registry.k8s.io/provider-os
 IMAGE_OS	?= linux
 IMAGE_NAMES	?= openstack-cloud-controller-manager \
 				cinder-csi-plugin \

release-procedure.md

@@ -20,10 +20,13 @@ $ git checkout -b release-X.Y upstream/release-X.Y
 3. Make tag and push to upstream repo.
 
 ```
-$ git tag -m "Release for cloud-provider-openstack to support Kubernetes release x" vX.Y.Z
+$ git tag vX.Y.Z
 $ git push upstream vX.Y.Z
 ```
 
-4. [Github Actions](https://github.com/kubernetes/cloud-provider-openstack/actions/workflows/release-cpo.yaml) will make the new docker images and make [new draft release](https://github.com/kubernetes/cloud-provider-openstack/releases) to repository.
+4. [Github Actions](https://github.com/kubernetes/cloud-provider-openstack/actions/workflows/release-cpo.yaml) will make [new draft release](https://github.com/kubernetes/cloud-provider-openstack/releases) to repository.
+Cloudbuild should build new images to gcr.io/k8s-staging-provider-os. 
 
-5. Make release notes and publish the release.
+5. Make PR https://github.com/kubernetes/k8s.io/blob/main/k8s.gcr.io/images/k8s-staging-provider-os/images.yaml to promote gcr.io images to registry.k8s.io.
+
+6. Make release notes and publish the release after the new images are published.