diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9616feca1..bd3964125 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,7 +3,6 @@ on: [push, pull_request]
 env:
   GCS_BUCKET: autobuilds.grr-response.com
   GCS_BUCKET_OPENAPI: autobuilds-grr-openapi
-  GCS_LATEST_PATH: _latest_server_deb
   DOCKER_REPOSITORY: ghcr.io/google/grr
 jobs:
   test-devenv:
@@ -28,6 +27,7 @@ jobs:
             sleep 5
           done
           [[ $OK = true ]]
+
   test-ubuntu:
     runs-on: ubuntu-22.04
     env:
@@ -54,6 +54,7 @@ jobs:
           pytest --verbose -n 3 grr/ --ignore grr/server/grr_response_server/gui/selenium_tests/ --ignore grr/client/grr_response_client/client_actions/windows/
           # jsTree tests seem to fail on Chrome 71 headless due to https://github.com/GoogleChrome/puppeteer/issues/3463
           if [ $(google-chrome --version | grep -Eo " [0-9]{1,3}") != "71" ]; then (cd grr/server/grr_response_server/gui/static/ && npm run gulp test); fi
+
   build-openapi:
     runs-on: ubuntu-22.04
     steps:
@@ -183,10 +184,11 @@ jobs:
           path: gcs_upload_dir/
           retention-days: 1
 
-  build-server-deb:
+  build-docker-image:
     runs-on: ubuntu-22.04
-    env:
-      GCS_TAG: server_deb
+    permissions:
+      contents: 'read'
+      id-token: 'write'
     needs:
       - build-centos
       - build-ubuntu
@@ -198,107 +200,132 @@ jobs:
         id: download
         uses: actions/download-artifact@v4
         with:
-          path: ~/_artifacts
-      - name: Set up
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y fakeroot debhelper libffi-dev libssl-dev python3-dev python3-pip python3-venv python3-mysqldb wget openjdk-8-jdk zip git devscripts libmysqlclient-dev dh-virtualenv dh-make libc6-i386 lib32z1
-          python3 -m venv --system-site-packages "${HOME}/INSTALL"
-          "${HOME}/INSTALL/bin/python3" -m pip install --upgrade pip 'setuptools<58.3.1' wheel
-      - name: Build
-        run: |
-          travis/install.sh
-          mkdir -p grr/config/grr_response_templates/templates
-          mv -v ~/_artifacts/windows-installers/GRR_*_amd64.msi.zip grr/config/grr_response_templates/templates
-          mv -v ~/_artifacts/ubuntu-installers/grr_*_amd64.deb.zip grr/config/grr_response_templates/templates
-          mv -v ~/_artifacts/centos-installers/grr_*_amd64.rpm.zip grr/config/grr_response_templates/templates
-          mv -v ~/_artifacts/osx-installers/grr_*_amd64.xar.zip grr/config/grr_response_templates/templates
-          travis/build_local_pyindex.sh
-          travis/build_server_deb.sh
-          ls -la gcs_upload_dir
-      - name: Upload installers to GitHub artifacts
+          pattern: '*installer*'
+          path: _installers
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.DOCKER_REPOSITORY }}
+      - name: Build and export
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: Dockerfile
+          # Temporarily add a `testing`-tag to identify this image
+          # for testing, tag is removed again before uploading to
+          # github container registry.
+          tags: |
+            ${{ env.DOCKER_REPOSITORY }}:testing
+            ${{ steps.meta.outputs.tags }}
+          outputs: type=docker,dest=/tmp/grr_base_image.tar
+      - name: Upload docker image
         uses: actions/upload-artifact@v4
         with:
-          name: server-deb
-          path: gcs_upload_dir/
-          retention-days: 1
-
-  test-ubuntu-e2e:
-    continue-on-error: true  # Debug follow up step.
+          name: grr_base_image
+          path: /tmp/grr_base_image.tar
+          retention-days: 3
+    
+  docker-compose-e2e-test:
+    permissions:
+      contents: 'read'
+      id-token: 'write'
     runs-on: ubuntu-22.04
-    env:
-      GRR_ADMIN_PASS: 'e2e_tests'
-      APPVEYOR_MYSQL_PASS: 'root'
     needs:
-      - build-server-deb
+      - build-docker-image
     steps:
       - uses: actions/checkout@v4
-      - name: Set up MySQL
-        run: |
-          printf "\n[mysqld]\nmax_allowed_packet=42M\nlog_bin_trust_function_creators=1\n" | sudo tee -a /etc/mysql/my.cnf
-          sudo /etc/init.d/mysql start
-      - name: Download installers from GitHub artifacts
-        id: download
+      - name: Download artifact
         uses: actions/download-artifact@v4
         with:
-          name: server-deb
-          path: _artifacts
-      - name: Install
+          name: grr_base_image
+          path: /tmp
+      - name: Load image
         run: |
-          free -hmw
-          lscpu
-          sudo -EH ./appveyor/e2e_tests/install_mem_usage_cron.sh
-          sudo -EH ./appveyor/e2e_tests/install_latest_server_deb.sh
+          docker load --input /tmp/grr_base_image.tar
+      - name: Start docker compose stack
+        shell: bash
+        run: |
+          docker compose \
+            -f docker-compose.yaml \
+            -f docker-compose.testing.yaml \
+            up -d --wait
       - name: Test
+        shell: bash
         run: |
-          sudo -EH ./appveyor/e2e_tests/run_e2e_tests.sh
-          sudo -EH ./appveyor/e2e_tests/test_repack.sh
-      - name: Upload logs and configs to GitHub artifacts
-        uses: actions/upload-artifact@v4
+          docker compose exec grr-client bash /configs/create_fake_user.sh
+          docker run \
+            --add-host=host.docker.internal:host-gateway \
+            -v $(pwd):/github_workspace \
+            -w /github_workspace \
+            --entrypoint appveyor/e2e_tests/run_docker_compose_e2e_test.sh \
+            ${{ env.DOCKER_REPOSITORY }}:testing \
+            $(docker inspect -f '{{range.NetworkSettings.Networks}}{{.IPAddress}}{{end}}' grr-client)
+      - name: Dump docker compose log output
+        if: always()
+        shell: bash
+        run: |
+          docker compose logs > /tmp/docker_compose_test.log
+      - name: Upload docker compose logs
         if: always()
+        uses: actions/upload-artifact@v4
         with:
-          name: e2e-test
-          path: /var/log/grr
-          retention-days: 1
+          name: docker_commpose_test_logs
+          path: /tmp/docker_compose_test.log
+          retention-days: 3
+      - name: Stop the docker compose stack
+        if: always()
+        shell: bash
+        run: |
+          docker compose down --volumes
 
-  build-push-docker:
+  push-docker-image:
+    if: ${{ github.event_name == 'push' }}
+    env:
+      REGISTRY: ghcr.io
+    permissions: write-all
     runs-on: ubuntu-22.04
     needs:
-      - build-server-deb
-      # - test-ubuntu-e2e  # TODO: Comment back in after debugging is finished.
       - test-ubuntu
-      - build-openapi
+      - docker-compose-e2e-test
     steps:
       - uses: actions/checkout@v4
-      - name: Download installers from GitHub artifacts
-        id: download
+      - name: Download artifact
         uses: actions/download-artifact@v4
         with:
-          name: server-deb
-          path: _artifacts
-      - name: Build Docker image
+          name: grr_base_image
+          path: /tmp
+      - name: Load image
         run: |
-          export BRANCH=$(echo $GITHUB_REF | cut -d'/' -f 3)
-          ./appveyor/docker_build/build_docker_image.sh
-      - if: ${{ github.event_name == 'push' }}
-        name: Login to GitHub Container registry
-        uses: docker/login-action@v2
+          docker load --input /tmp/grr_base_image.tar
+      - name: Login to GitHub Container registry
+        uses: docker/login-action@v3
         with:
-          registry: ghcr.io
+          registry: ${{ env.REGISTRY }}
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-      - if: ${{ github.event_name == 'push' }}
-        name: Push to GitHub Container registry
+      - name: Push Docker image
         run: |
-          docker push -a ${{ env.DOCKER_REPOSITORY }}
-  upload:
+          # Remove the tag used to identify the image for testing again.
+          docker rmi ${{ env.DOCKER_REPOSITORY }}:testing
+          docker push --all-tags ${{ env.DOCKER_REPOSITORY }}
+
+  upload-artifacts:
     if: ${{ github.event_name == 'push' }}
     permissions:
       contents: 'read'
       id-token: 'write'
     runs-on: ubuntu-22.04
     needs:
-      - build-push-docker
+      - docker-compose-e2e-test
+      - test-ubuntu
+      - build-centos
+      - build-ubuntu
+      - build-osx
+      - build-windows
+      - build-openapi
     steps:
       - uses: actions/checkout@v4
       - name: Download installers from GitHub artifacts
@@ -319,8 +346,6 @@ jobs:
           mv -v _artifacts/osx-installers/* $OUTPUT_DIR/osx
           mkdir -p $OUTPUT_DIR/windows/
           mv -v _artifacts/windows-installers/* $OUTPUT_DIR/windows
-          mkdir -p $OUTPUT_DIR/server_deb/
-          mv -v _artifacts/server-deb/* $OUTPUT_DIR/server_deb
       - name: Authenticate
         uses: 'google-github-actions/auth@v1'
         with:
@@ -335,10 +360,6 @@ jobs:
           destination: ${{ env.GCS_BUCKET }}
           # Omit `path` (e.g. /home/runner/deploy/) in final GCS path.
           parent: false
-      - name: Replace ${{ env.GCS_LATEST_PATH }} folder in GCS
-        run: |
-          gsutil rm gs://${{ env.GCS_BUCKET }}/${{ env.GCS_LATEST_PATH }}/** || true
-          gsutil cp -r $OUTPUT_DIR/server_deb/* gs://${{ env.GCS_BUCKET }}/${{ env.GCS_LATEST_PATH }}/
       - name: Upload OpenAPI to GCS
         uses: google-github-actions/upload-cloud-storage@v1.0.0
         with:
@@ -346,4 +367,3 @@ jobs:
           destination: ${{ env.GCS_BUCKET_OPENAPI }}
           # Omit `path` (e.g. /home/runner/deploy/) in final GCS path.
           parent: false
-