Automate releases (#3732)

* Test custom action with custom input

* Run test workflow on push

* Automated release configuration

.github/workflows/release.yml

@@ -1,21 +1,69 @@
+name: Release
+
 on:
   workflow_dispatch:
     inputs:
       version:
         description: 'Version'
         required: true
-        default: ''
 
 jobs:
-  hello_world_job:
+  release-moto-job:
     runs-on: ubuntu-latest
-    name: A job to say hello
+    name: Release Moto
+    env:
+      VERSION: 0.0.0
     steps:
-    - name: Hello world action step
-      id: hello
-      uses: bblommers/moto-release-action@v1
+    - name: Set Env
+      run: |
+        echo "VERSION=${{ github.event.inputs.version }}" >> $GITHUB_ENV
+    - uses: actions/checkout@v2
       with:
-        who-to-greet: 'Mona the Octocat wants to release ${{ github.event.inputs.version }}'
-    # Use the output from the `hello` step
-    - name: Get the output time
-      run: echo "The time was ${{ steps.hello.outputs.time }}"
+        fetch-depth: 0
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.8
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install wheel setuptools packaging twine --upgrade
+    - name: Verify Tag does not exist
+      run: |
+        ! git rev-parse ${{ env.VERSION }} || { echo "Ensure that no tag exists for ${{ env.VERSION }}" ; exit 1; }
+    - name: Verify supplied version exists in the CHANGELOG
+      run: |
+        grep ${{ env.VERSION }} CHANGELOG.md || { echo "Ensure that the CHANGELOG contains an entry for ${{ env.VERSION }}" ; exit 1; }
+    - name: Set version number
+      run: python update_version_from_git.py ${{ env.VERSION }}
+    - name: Build
+      run: python setup.py sdist bdist_wheel
+    - name: Publish to PyPI
+      uses: pypa/gh-action-pypi-publish@master
+      with:
+        password: ${{ secrets.PYPI_API_TOKEN }}
+    - name: Tag version on Github
+      run: |
+        git tag ${{ env.VERSION }}
+        git push origin ${{ env.VERSION }}
+    - name: Build Docker release
+      run: |
+        docker build -t motoserver/moto . --tag moto:${{ env.VERSION }}
+    - name: Login to DockerHub
+      uses: docker/login-action@v1
+      with:
+        username: ${{ secrets.DOCKERHUB_USERNAME }}
+        password: ${{ secrets.DOCKERHUB_TOKEN }}
+    - name: Build and push
+      uses: docker/build-push-action@v2
+      with:
+        push: true
+        tags: motoserver/moto:${{ env.VERSION }}
+    - name: Increase patch version number
+      run: |
+        python update_version_from_git.py patch
+        git config --local user.email "admin@getmoto.org"
+        git config --local user.name "Moto Admin"
+        git add moto/__init__.py
+        git commit -m "Increase version number post-release"
+        git push