Enable GitHub Actions for automated docker builds

.github/workflows/docker-builds.yml

@@ -0,0 +1,70 @@
+name: Docker Builds
+
+on:
+  push:
+    branches:
+      - '**'
+    tags:
+      - '*.*.*'
+  pull_request:
+    branches:
+      - 'master'
+
+jobs:
+  setup-docker-builds:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Get containers to build
+        id: get_containers
+        run: |
+           python3 -c '
+           import json
+           import pathlib
+           print(
+               "::set-output name=containers::%s"
+               % json.dumps([
+                       str(path.parent.relative_to("containers"))
+                       for path in pathlib.Path("containers").glob("**/Dockerfile")
+                   ]
+           ))
+           '
+    outputs:
+      containers: ${{ steps.get_containers.outputs.containers }}
+
+  docker-builds:
+      needs: setup-docker-builds
+      runs-on: ubuntu-latest
+      strategy:
+        matrix:
+          containers: ${{ fromJSON(needs.setup-docker-builds.outputs.containers) }}
+      steps:
+        - name: Checkout
+          uses: actions/checkout@v2
+        - name: Set up Docker Buildx
+          uses: docker/setup-buildx-action@v1
+        - name: Docker meta
+          id: meta
+          uses: docker/metadata-action@v3
+          with:
+            tags: |
+              type=pep440,pattern={{version}}
+              type=raw,value=latest
+            images: matterminers/${{ matrix.containers }}
+        - name: Login to DockerHub
+          if: github.repository == 'MatterMiners/tardis' && github.ref == 'refs/heads/master'
+          uses: docker/login-action@v1
+          with:
+            username: ${{ secrets.DOCKERHUB_USERNAME }}
+            password: ${{ secrets.DOCKERHUB_TOKEN }}
+        - name: Build
+          id: docker_build
+          uses: docker/build-push-action@v2
+          with:
+            context: containers/${{ matrix.containers }}
+            push: ${{ github.repository == 'MatterMiners/tardis' && github.ref == 'refs/heads/master' }}
+            file: containers/${{ matrix.containers }}/Dockerfile
+            tags: ${{ steps.meta.outputs.tags }}
+            build-args: |
+              SOURCE_BRANCH=${{ github.ref }}
+              SOURCE_REPO_URL=https://github.com/${{ github.repository }}

containers/cobald-tardis-htcondor/Dockerfile

@@ -17,7 +17,8 @@ RUN yum -y update \
                       python3-devel \
     && yum clean all
 
-RUN python3 -m pip install --no-cache-dir git+$SOURCE_REPO_URL@$SOURCE_BRANCH
+RUN python3 -m pip install --no-cache-dir --upgrade pip \
+    && python3 -m pip install --no-cache-dir git+$SOURCE_REPO_URL@$SOURCE_BRANCH
 
 WORKDIR /srv
 

docs/source/changelog.rst

@@ -1,4 +1,4 @@
-.. Created by changelog.py at 2021-08-10, command
+.. Created by changelog.py at 2021-09-01, command
    '/Users/giffler/.cache/pre-commit/repor6pnmwlm/py_env-python3.9/bin/changelog docs/source/changes compile --output=docs/source/changelog.rst'
    based on the format of 'https://keepachangelog.com/'