Initial commit

.github/workflows/integration.yml

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+name: Integration Test
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Self test
+        id: selftest
+
+        # Put your action repo here
+        uses: jacobtomlinson/python-container-action@master
+
+      - name: Check outputs
+        run: |
+          test "${{ steps.selftest.outputs.myOutput }}" == "Hello world"

.github/workflows/python.yml

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+name: Lint
+on: [push, pull_request]
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Python 3.7
+        uses: actions/setup-python@v1
+        with:
+          python-version: "3.7"
+
+      - uses: actions/checkout@v1
+
+      - name: Lint
+        run: |
+          pip install flake8
+          flake8 main.py

Dockerfile

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+FROM python:3-slim AS builder
+ADD . /app
+WORKDIR /app
+
+# We are installing a dependency here directly into our app source dir
+RUN pip install --target=/app requests
+
+# A distroless container image with Python and some basics like SSL certificates
+# https://github.com/GoogleContainerTools/distroless
+FROM gcr.io/distroless/python3-debian10
+COPY --from=builder /app /app
+WORKDIR /app
+ENV PYTHONPATH /app
+CMD ["/app/main.py"]

LICENSE

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+
+The MIT License (MIT)
+
+Copyright (c) 2018 GitHub, Inc. and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+# Python Container Action Template
+
+[![Action Template](https://img.shields.io/badge/Action%20Template-Python%20Container%20Action-blue.svg?colorA=24292e&colorB=0366d6&style=flat&longCache=true&logo=data:image/png;base64,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)](https://github.com/jacobtomlinson/python-container-action)
+[![Actions Status](https://github.com/jacobtomlinson/python-container-action/workflows/Lint/badge.svg)](https://github.com/jacobtomlinson/python-container-action/actions)
+[![Actions Status](https://github.com/jacobtomlinson/python-container-action/workflows/Integration%20Test/badge.svg)](https://github.com/jacobtomlinson/python-container-action/actions)
+
+This is a template for creating GitHub actions and contains a small Python application which will be built into a minimal [Container Action](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/creating-a-docker-container-action). Our final container from this template is ~50MB, yours may be a little bigger once you add some code. If you want something smaller check out my [go-container-action template](https://github.com/jacobtomlinson/go-container-action/actions).
+
+In `main.py` you will find a small example of accessing Action inputs and returning Action outputs. For more information on communicating with the workflow see the [development tools for GitHub Actions](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/development-tools-for-github-actions).
+
+> 🏁 To get started, click the `Use this template` button on this repository [which will create a new repository based on this template](https://github.blog/2019-06-06-generate-new-repositories-with-repository-templates/).
+
+## Usage
+
+Describe how to use your action here.
+
+### Example workflow
+
+```yaml
+name: My Workflow
+on: [push, pull_request]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: Run action
+
+      # Put your action repo here
+      uses: me/myaction@master
+
+      # Put an example of your mandatory inputs here
+      with:
+        myInput: world
+```
+
+### Inputs
+
+| Input                                             | Description                                        |
+|------------------------------------------------------|-----------------------------------------------|
+| `myInput`  | An example mandatory input    |
+| `anotherInput` _(optional)_  | An example optional input    |
+
+### Outputs
+
+| Output                                             | Description                                        |
+|------------------------------------------------------|-----------------------------------------------|
+| `myOutput`  | An example output (returns 'Hello world')    |
+
+## Examples
+
+> NOTE: People ❤️ cut and paste examples. Be generous with them!
+
+### Using the optional input
+
+This is how to use the optional input.
+
+```yaml
+with:
+  myInput: world
+  anotherInput: optional
+```
+
+### Using outputs
+
+Show people how to use your outputs in another action.
+
+```yaml
+steps:
+- uses: actions/checkout@master
+- name: Run action
+  id: myaction
+
+  # Put your action name here
+  uses: me/myaction@master
+
+  # Put an example of your mandatory arguments here
+  with:
+    myInput: world
+
+# Put an example of using your outputs here
+- name: Check outputs
+    run: |
+    echo "Outputs - ${{ steps.myaction.outputs.myOutput }}"
+```

action.yml

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+name: "Python Container Action Template"
+description: "Get started with Python Container actions"
+author: "Jacob Tomlinson"
+inputs:
+  myInput:
+    description: "Input to use"
+    default: "world"
+outputs:
+  myOutput:
+    description: "Output from the action"
+runs:
+  using: "docker"
+  image: "Dockerfile"

main.py

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+import os
+import requests  # noqa We are just importing this to prove the dependency installed correctly
+
+# Set the output value by writing to the outputs in the Environment File, mimicking the behavior defined here:
+#  https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-output-parameter
+def set_github_action_output(output_name, output_value):
+    f = open(os.path.abspath(os.environ["GITHUB_OUTPUT"]), "a")
+    f.write(f'{output_name}={output_value}')
+    f.close()    
+
+def main():
+    my_input = os.environ["INPUT_MYINPUT"]
+
+    my_output = f'Hello {my_input}'
+
+    set_github_action_output('myOutput', my_output)
+
+
+if __name__ == "__main__":
+    main()