Remove delete-temp-images job

.github/workflows/build-and-publish-images.yaml

@@ -64,19 +64,3 @@ jobs:
           BUILD_TYPE: ${{ inputs.build_type }}
           IMAGE_NAME: ${{ matrix.IMAGE_NAME }}
         run: ci/create-multiarch-manifest.sh
-  delete-temp-images:
-    needs: [compute-matrix, build-multiarch-manifest]
-    runs-on: ubuntu-latest
-    strategy:
-      matrix: ${{ fromJSON(needs.compute-matrix.outputs.MATRIX) }}
-      fail-fast: false
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Remove temporary images
-        run: ci/remove-temp-images.sh
-        env:
-          GPUCIBOT_DOCKERHUB_USER: ${{ secrets.GPUCIBOT_DOCKERHUB_USER }}
-          GPUCIBOT_DOCKERHUB_TOKEN: ${{ secrets.GPUCIBOT_DOCKERHUB_TOKEN }}
-          IMAGE_NAME: ${{ matrix.IMAGE_NAME }}
-          ARCHES: ${{ toJSON(matrix.ARCHES) }}

README.md

@@ -23,3 +23,14 @@ docker build $(ci/compute-build-args.sh) -f ci-conda.Dockerfile context/
 docker build $(ci/compute-build-args.sh) -f ci-wheel.Dockerfile context/
 docker build $(ci/compute-build-args.sh) -f citestwheel.Dockerfile context/
 ```
+
+## Cleaning Up
+
+Every build first writes images to the https://hub.docker.com/r/rapidsai/staging repo on DockerHub,
+then pushes them on to the individual repos like `rapidsai/base`, `rapidsai/notebooks`, etc.
+
+A scheduled job regularly deletes old images from that `rapidsai/staging` repo.
+See https://github.com/rapidsai/workflows/blob/main/.github/workflows/cleanup_staging.yaml for details.
+
+If you come back to a pull requests here after more than a few days and find that jobs are failing with errors
+that suggest that some necessary images don't exist, re-run all of CI on that pull request to produce new images.