Deploy #12
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| name: Deploy | |
| # Define when the workflow should run | |
| on: | |
| # Allow manual triggering of the workflow from the Actions tab | |
| workflow_dispatch: | |
| # Allow inputs to be passed when manually triggering the workflow from the Actions tab | |
| inputs: | |
| DOCKERFILE_PATH: | |
| type: string | |
| description: 'Path to the Dockerfile' | |
| required: true | |
| default: 'dockerfiles/debian_mini' | |
| IMAGE_SIZE: | |
| type: string | |
| description: 'Image size, 950M max' | |
| required: true | |
| default: '600M' | |
| DEPLOY_TO_GITHUB_PAGES: | |
| type: boolean | |
| description: 'Deploy to Github pages' | |
| required: true | |
| default: true | |
| GITHUB_RELEASE: | |
| type: boolean | |
| description: 'Upload GitHub release' | |
| required: true | |
| default: false | |
| jobs: | |
| guard_clause: | |
| runs-on: ubuntu-latest | |
| env: | |
| GH_TOKEN: ${{ github.token }} # As required by the GitHub-CLI | |
| permissions: | |
| actions: 'write' # Required in order to terminate the workflow run. | |
| steps: | |
| - uses: actions/checkout@v3 | |
| # Guard clause that cancels the workflow in case of an invalid DOCKERFILE_PATH and/or incorrectly configured Github Pages. | |
| # The main reason for choosing this workaround for aborting the workflow is the fact that it does not display the workflow as successful, which can set false expectations. | |
| - name: DOCKERFILE_PATH. | |
| shell: bash | |
| run: | | |
| # We check whether the Dockerfile_path is valid. | |
| if [ ! -f ${{ github.event.inputs.DOCKERFILE_PATH }} ]; then | |
| echo "::error title=Invalid Dockerfile path::No file found at ${{ github.event.inputs.DOCKERFILE_PATH }}" | |
| echo "terminate=true" >> $GITHUB_ENV | |
| fi | |
| - name: Github Pages config guard clause | |
| if: ${{ github.event.inputs.DEPLOY_TO_GITHUB_PAGES == 'true' }} | |
| run: | | |
| # We use the Github Rest api to get information regarding pages for the Github Repository and store it into a temporary file named "pages_response". | |
| set +e | |
| gh api \ | |
| -H "Accept: application/vnd.github+json" \ | |
| -H "X-GitHub-Api-Version: 2022-11-28" \ | |
| /repos/${{ github.repository_owner }}/$(basename ${{ github.repository }})/pages > pages_response | |
| # We make sure Github Pages has been enabled for this repository. | |
| if [ "$?" -ne 0 ]; then | |
| echo "::error title=Potential pages configuration error.::Please make sure you have enabled Github pages for the ${{ github.repository }} repository. If already enabled then Github pages might be down" | |
| echo "terminate=true" >> $GITHUB_ENV | |
| fi | |
| set -e | |
| # We make sure the Github pages build & deployment source is set to "workflow" (Github Actions). Instead of a "legacy" (branch). | |
| if [[ "$(jq --compact-output --raw-output .build_type pages_response)" != "workflow" ]]; then | |
| echo "Undefined behaviour, Make sure the Github Pages source is correctly configured in the Github Pages settings." | |
| echo "::error title=Pages configuration error.::Please make sure you have correctly picked \"Github Actions\" as the build and deployment source for the Github Pages." | |
| echo "terminate=true" >> $GITHUB_ENV | |
| fi | |
| rm pages_response | |
| - name: Terminate run if error occurred. | |
| run: | | |
| if [[ $terminate == "true" ]]; then | |
| gh run cancel ${{ github.run_id }} | |
| gh run watch ${{ github.run_id }} | |
| fi | |
| build: | |
| needs: guard_clause # Dependency | |
| runs-on: ubuntu-latest # Image to run the worker on. | |
| env: | |
| TAG: "ext2-webvm-base-image" # Tag of docker image. | |
| IMAGE_SIZE: '${{ github.event.inputs.IMAGE_SIZE }}' | |
| DEPLOY_DIR: /webvm_deploy/ # Path to directory where we host the final image from. | |
| permissions: # Permissions to grant the GITHUB_TOKEN. | |
| contents: write # Required permission to make a github release. | |
| steps: | |
| # Checks-out our repository under $GITHUB_WORKSPACE, so our job can access it | |
| - uses: actions/checkout@v3 | |
| # Setting the IMAGE_NAME variable in GITHUB_ENV to <Dockerfile name>_<date>_<run_id>.ext2. | |
| - name: Generate the image_name. | |
| id: image_name_gen | |
| run: | | |
| echo "IMAGE_NAME=$(basename ${{ github.event.inputs.DOCKERFILE_PATH }})_$(date +%Y%m%d)_${{ github.run_id }}.ext2" >> $GITHUB_ENV | |
| # Create directory to host the image from. | |
| - run: sudo mkdir -p $DEPLOY_DIR | |
| # Build the i386 Dockerfile image. | |
| - run: docker build . --tag $TAG --file ${{ github.event.inputs.DOCKERFILE_PATH }} --platform=i386 | |
| # Run the docker image so that we can export the container. | |
| # Run the Docker container with the Google Public DNS nameservers: 8.8.8.8, 8.8.4.4 | |
| - run: | | |
| docker run --dns 8.8.8.8 --dns 8.8.4.4 -d $TAG | |
| echo "CONTAINER_ID=$(sudo docker ps -aq)" >> $GITHUB_ENV | |
| # We extract the CMD, we first need to figure whether the Dockerfile uses CMD or an Entrypoint. | |
| - name: Extracting CMD / Entrypoint and args | |
| shell: bash | |
| run: | | |
| cmd=$(sudo docker inspect --format='{{json .Config.Cmd}}' $CONTAINER_ID) | |
| entrypoint=$(sudo docker inspect --format='{{json .Config.Entrypoint}}' $CONTAINER_ID) | |
| if [[ $entrypoint != "null" && $cmd != "null" ]]; then | |
| echo "CMD=$( sudo docker inspect $CONTAINER_ID | jq --compact-output '.[0].Config.Entrypoint' )" >> $GITHUB_ENV | |
| echo "ARGS=$( sudo docker inspect $CONTAINER_ID | jq --compact-output '.[0].Config.Cmd' )" >> $GITHUB_ENV | |
| elif [[ $cmd != "null" ]]; then | |
| echo "CMD=$( sudo docker inspect $CONTAINER_ID | jq --compact-output '.[0].Config.Cmd[:1]' )" >> $GITHUB_ENV | |
| echo "ARGS=$( sudo docker inspect $CONTAINER_ID | jq --compact-output '.[0].Config.Cmd[1:]' )" >> $GITHUB_ENV | |
| else | |
| echo "CMD=$( sudo docker inspect $CONTAINER_ID | jq --compact-output '.[0].Config.Entrypoint[:1]' )" >> $GITHUB_ENV | |
| echo "ARGS=$( sudo docker inspect $CONTAINER_ID | jq --compact-output '.[0].Config.Entrypoint[1:]' )" >> $GITHUB_ENV | |
| fi | |
| # We extract the ENV, CMD/Entrypoint and cwd from the Docker container with docker inspect. | |
| - name: Extracting env, args and cwd. | |
| shell: bash | |
| run: | | |
| echo "ENV=$( sudo docker inspect $CONTAINER_ID | jq --compact-output '.[0].Config.Env' )" >> $GITHUB_ENV | |
| echo "CWD=$( sudo docker inspect $CONTAINER_ID | jq --compact-output '.[0].Config.WorkingDir' )" >> $GITHUB_ENV | |
| # We create and mount the base ext2 image to extract the Docker container's filesystem its contents into. | |
| - name: Create ext2 image. | |
| run: | | |
| # Preallocate space for the ext2 image | |
| sudo fallocate -l $IMAGE_SIZE ${IMAGE_NAME} | |
| # Format to ext2 linux kernel revision 0 | |
| sudo mkfs.ext2 -r 0 ${IMAGE_NAME} | |
| # Mount the ext2 image to modify it | |
| sudo mount -o loop -t ext2 ${IMAGE_NAME} /mnt/ | |
| # We opt for 'docker cp --archive' over 'docker save' since our focus is solely on the end product rather than individual layers and metadata. | |
| # However, it's important to note that despite being specified in the documentation, the '--archive' flag does not currently preserve uid/gid information when copying files from the container to the host machine. | |
| # Another compelling reason to use 'docker cp' is that it preserves resolv.conf. | |
| - name: Export and unpack container filesystem contents into mounted ext2 image. | |
| run: | | |
| sudo docker cp -a ${CONTAINER_ID}:/ /mnt/ | |
| sudo umount /mnt/ | |
| # Result is an ext2 image for webvm. | |
| # Move required files for gh-pages deployment to the deployment directory $DEPLOY_DIR. | |
| - run: sudo mv assets examples xterm favicon.ico index.html login.html network.js scrollbar.css serviceWorker.js tower.ico $DEPLOY_DIR | |
| # The .txt suffix enabled HTTP compression for free | |
| - name: Generate image split chunks and .meta file | |
| run: | | |
| sudo split ${{ env.IMAGE_NAME }} ${{ env.DEPLOY_DIR }}/${{ env.IMAGE_NAME }}.c -a 6 -b 128k -x --additional-suffix=.txt | |
| sudo bash -c "stat -c%s ${{ env.IMAGE_NAME }} > ${{ env.DEPLOY_DIR }}/${{ env.IMAGE_NAME }}.meta" | |
| # This step updates the default index.html file by performing the following actions: | |
| # 1. Replaces all occurrences of IMAGE_URL with the URL to the image. | |
| # 2. Replaces all occurrences of DEVICE_TYPE to bytes. | |
| # 3. Replace CMD with the Dockerfile entry command. | |
| # 4. Replace args with the Dockerfile CMD / Entrypoint args. | |
| # 5. Replace ENV with the container's environment values. | |
| - name: Adjust index.html | |
| run: | | |
| sudo sed -i 's#IMAGE_URL#"${{ env.IMAGE_NAME }}"#g' ${{ env.DEPLOY_DIR }}index.html | |
| sudo sed -i 's#DEVICE_TYPE#"split"#g' ${{ env.DEPLOY_DIR }}index.html | |
| sudo sed -i 's#CMD#${{ env.CMD }}#g' ${{ env.DEPLOY_DIR }}index.html | |
| sudo sed -i 's#ARGS#${{ env.ARGS }}#g' ${{ env.DEPLOY_DIR }}index.html | |
| sudo sed -i 's#ENV#${{ env.ENV }}#g' ${{ env.DEPLOY_DIR }}index.html | |
| sudo sed -i 's#CWD#${{ env.CWD }}#g' ${{ env.DEPLOY_DIR }}index.html | |
| # We generate index.list files for our httpfs to function properly. | |
| - name: make index.list | |
| shell: bash | |
| run: | | |
| find $DEPLOY_DIR -type d | while read -r dir; | |
| do | |
| index_list="$dir/index.list"; | |
| sudo rm -f "$index_list"; | |
| sudo ls "$dir" | sudo tee "$index_list" > /dev/null; | |
| sudo chmod +rw "$index_list"; | |
| sudo echo "created $index_list"; | |
| done | |
| # Create a gh-pages artifact in order to deploy to gh-pages. | |
| - name: Upload GitHub Pages artifact | |
| uses: actions/upload-pages-artifact@v2 | |
| with: | |
| # Path of the directory containing the static assets for our gh pages deployment. | |
| path: ${{ env.DEPLOY_DIR }} # optional, default is _site/ | |
| - name: github release # To upload our final ext2 image as a github release. | |
| if: ${{ github.event.inputs.GITHUB_RELEASE == 'true' }} | |
| uses: softprops/action-gh-release@v0.1.15 | |
| with: | |
| target_commitish: ${{ github.sha }} # Last commit on the GITHUB_REF branch or tag | |
| tag_name: ext2_image | |
| fail_on_unmatched_files: 'true' # Fail in case of no matches with the file(s) glob(s). | |
| files: | # Assets to upload as release. | |
| ${{ env.IMAGE_NAME }} | |
| deploy_to_github_pages: # Job that deploys the github-pages artifact to github-pages. | |
| if: ${{ github.event.inputs.DEPLOY_TO_GITHUB_PAGES == 'true' }} | |
| needs: build | |
| environment: | |
| name: github-pages | |
| url: ${{ steps.deployment.outputs.page_url }} | |
| # Grant GITHUB_TOKEN the permissions required to make a Pages deployment | |
| permissions: | |
| pages: write # to deploy to Pages | |
| id-token: write # to verify the deployment originates from an appropriate source | |
| runs-on: ubuntu-latest | |
| steps: | |
| # Deployment to github pages | |
| - name: Deploy GitHub Pages site | |
| id: deployment | |
| uses: actions/deploy-pages@v3 |