added initial draft github action workflow

.github/workflows/workflow.yaml

@@ -0,0 +1,88 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Kombu
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+env:
+  GITHUB_WORKFLOW: true
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04, macos-latest]
+        python-version: ['3.6', '3.7', '3.8', '3.9', 'pypy3']
+        exclude:
+          - os: macos-latest
+            python-version: 3.6, 3.7
+          #- os: windows-latest
+          #  python-version: 3.6, 3.7
+     # additional service containers to run
+    services:
+      # postgres service
+      rabbitmq:
+        # docker hub image
+        image: rabbitmq
+        # configure the instance
+        env:
+          RABBITMQ_DEFAULT_USER: craiga
+          RABBITMQ_DEFAULT_PASS: security_is_important
+        ports:
+          - 5432:5432
+        # set health checks to wait until service has started
+        #options: >-
+         # --health_cmd = "rabbitmq-diagnostics ping -q"
+         # --health_interval = 10
+         # --health_timeout = 10
+         # --health_retries = 30
+         # --health_start_period = 5
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Get pip cache dir
+      id: pip-cache
+      run: |
+        echo "::set-output name=dir::$(pip cache dir)"
+    - name: Cache
+      uses: actions/cache@v2
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key:
+          ${{ matrix.python-version }}-v1-${{ hashFiles('**/setup.py') }}
+        restore-keys: |
+          ${{ matrix.python-version }}-v1-
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest case pytest-celery pytest-subtests pytest-timeout pytest-cov
+        python -m pip install moto boto3 msgpack PyYAML
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Run Unit test with tox-docker
+      run: |
+        PYTHONPATH=. pytest -xv --cov=celery --cov-report=xml --cov-report term t/unit
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    -   uses: codecov/codecov-action@v1
+        with:
+            token: ${{ secrets.CODECOV_TOKEN }} # not required for public repos
+            flags: unittests # optional
+            fail_ci_if_error: true # optional (default = false)
+            verbose: true # optional (default = false)