Setup CI

.devcontainer/Dockerfile

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+FROM osgeo/gdal:ubuntu-small-3.5.0 AS base
+
+ARG DEBIAN_FRONTEND=noninteractive
+ARG USERNAME=ubuntu
+ARG GROUPNAME=ubuntu
+ARG USER_UID=1000
+ARG USER_GID=1000
+ENV TZ=Etc/GMT
+
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PIP_NO_CACHE_DIR=off \
+    PIP_DISABLE_PIP_VERSION_CHECK=on \
+    PIP_DEFAULT_TIMEOUT=100 \
+    POETRY_HOME="/opt/poetry/" \
+    POETRY_NO_INTERACTION=1 \
+    POETRY_VIRTUALENVS_IN_PROJECT=true \
+    VENV_PATH=".venv/" \
+    APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=DontWarn
+
+ENV PATH="$POETRY_HOME/bin:/home/$USERNAME/.local/bin:$VENV_PATH/bin:$PATH"
+
+RUN apt-get update -qy && \
+    apt-get install -qy --no-install-recommends \
+        #  libpq-dev and build-essential are necessary for psycopg2, which is required for datacube
+        build-essential \
+        libpq-dev
+
+# Adapted from https://github.com/TheKevJames/tools/blob/master/docker-nox/Dockerfile
+RUN apt-get update -qy && \
+    apt-get install -qy --no-install-recommends \
+        ca-certificates \
+        curl \
+        gnupg2 && \
+    . /etc/os-release && \
+    echo "deb http://ppa.launchpad.net/deadsnakes/ppa/ubuntu ${UBUNTU_CODENAME} main" > /etc/apt/sources.list.d/deadsnakes.list && \
+    apt-key adv --keyserver keyserver.ubuntu.com --recv-keys F23C5A6CF475977595C89F51BA6932366A755776 && \
+    apt-get update -qy && \
+    apt-get install -qy --fix-missing --no-install-recommends \
+        git \
+        openssh-client \
+        python3.6 \
+        python3.6-dev \
+        python3.6-distutils \
+        python3.6-venv \
+        python3.7 \
+        python3.7-dev \
+        python3.7-distutils \
+        python3.7-venv \
+        python3.8 \
+        python3.8-dev \
+        python3.8-distutils \
+        python3.8-venv \
+        python3.9 \
+        python3.9-dev \
+        python3.9-distutils \
+        python3.9-venv \
+        python3.10 \
+        python3.10-dev \
+        python3.10-distutils \
+        python3.10-venv \
+        python3-pip \
+        python3-distutils
+
+# Install Poetry - respects $POETRY_VERSION & $POETRY_HOME
+ENV POETRY_VERSION=1.1.13
+RUN curl -sSL https://install.python-poetry.org | python3 -
+
+RUN useradd -ms /bin/bash --uid $USER_UID --user-group $USERNAME \
+    && chown -R $USER_UID:$USER_GID /home/$USERNAME
+USER $USER_UID
+
+ENV PATH="$POETRY_HOME/bin:/home/$USERNAME/.local/bin:$VENV_PATH/bin:$PATH"
+
+RUN curl -fsS https://bootstrap.pypa.io/get-pip.py --output /tmp/get-pip.py && \
+    python3.10 /tmp/get-pip.py && \
+    rm /tmp/get-pip.py
+
+RUN python3.6 -m pip install --user --no-cache-dir --upgrade pip && \
+    python3.7 -m pip install --user --no-cache-dir --upgrade pip && \
+    python3.8 -m pip install --user --no-cache-dir --upgrade pip && \
+    python3.9 -m pip install --user --no-cache-dir --upgrade pip && \
+    python3.10 -m pip install --user --no-cache-dir --upgrade pip && \
+    rm -rf /var/cache/apt/lists
+
+RUN python3.10 -m pip install --user --no-cache-dir 'nox-poetry==1.0.0'

.devcontainer/devcontainer.json

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+{
+	"name": "openeo-processes-python",
+
+	"dockerFile": "./Dockerfile",
+
+	// Sets the run context to one level up instead of the .devcontainer folder.
+	"context": "..",
+
+	// Set *default* container specific settings.json values on container create.
+	"settings": {
+		"python.defaultInterpreterPath": ".venv/bin/python",
+		"python.venvPath": ".venv",
+		"python.pythonPath": ".venv/bin/python",
+		"python.testing.pytestArgs": [
+			"tests"
+		],
+		"python.testing.unittestEnabled": false,
+		"python.testing.pytestEnabled": true,
+		"python.linting.enabled": true
+	},
+
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"ms-python.python",
+		"ms-python.vscode-pylance"
+	],
+
+	"postCreateCommand": "poetry install"
+}

.github/workflows/tests.yml

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+# Inspired by https://github.com/python-poetry/poetry/blob/master/.github/workflows/main.yml
+
+name: CI Pipeline
+
+on:
+  push:
+    paths-ignore:
+      - 'docs/**'
+    branches:
+      - master
+  pull_request:
+    paths-ignore:
+      - 'docs/**'
+    branches:
+      - '**'
+  workflow_dispatch:
+
+env:
+  POETRY_VERSION: 1.1.13
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  image-build:
+    name: Build devcontainer
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v2
+
+    - name: Setup buildx
+      uses: docker/setup-buildx-action@v2
+
+    - name: Downcase IMAGE_NAME
+      run: |
+        echo "IMAGE_NAME=${GITHUB_REPOSITORY,,}" >>${GITHUB_ENV}
+
+    - name: Add env variables
+      run: |
+        echo "USER_UID=$( id --user )" >>${GITHUB_ENV} 
+        echo "USERNAME=$( id --user --name )" >>${GITHUB_ENV} 
+        echo "USER_GID=$( id --group )" >>${GITHUB_ENV} 
+
+    - name: Build image
+      id: image-build
+      uses: docker/build-push-action@v3
+      with:
+        file: ./.devcontainer/Dockerfile
+        context: .
+        tags: ${{ env.IMAGE_NAME }}
+        cache-from: type=gha
+        cache-to: type=gha,mode=max
+        build-args: |
+          "USER_UID=${{ env.USER_UID }}"
+          "USERNAME=${{ env.USERNAME }}"
+          "USER_GID=${{ env.USER_GID }}"
+
+  tests:
+    name: ${{ matrix.python-version }} / ${{ matrix.session }}
+    needs: [image-build]
+    runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: false  # This prevents the entire matrix from stopping early if any job in the matrix fails.
+      matrix:
+        python-version: ["3.9", "3.8"]
+        session: ["tests", "mypy"]
+    env:
+      NOXSESSION: ${{ matrix.session }}
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Downcase IMAGE_NAME
+      run: |
+        echo "IMAGE_NAME=${GITHUB_REPOSITORY,,}" >>${GITHUB_ENV}
+
+    - name: Add env variables
+      run: |
+        echo "USER_UID=$( id --user )" >>${GITHUB_ENV} 
+        echo "USERNAME=$( id --user --name )" >>${GITHUB_ENV} 
+        echo "USER_GID=$( id --group )" >>${GITHUB_ENV} 
+
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v2
+
+    - name: Setup buildx
+      uses: docker/setup-buildx-action@v2
+
+    - name: Build image
+      id: image-build
+      uses: docker/build-push-action@v3
+      with:
+        file: ./.devcontainer/Dockerfile
+        context: .
+        load: true
+        tags: ${{ env.IMAGE_NAME }}
+        cache-from: type=gha
+        build-args: |
+          "USER_UID=${{ env.USER_UID }}"
+          "USERNAME=${{ env.USERNAME }}"
+          "USER_GID=${{ env.USER_GID }}"
+
+    - name: Run nox session
+      run: |
+        docker run --rm --mount type=bind,source="$GITHUB_WORKSPACE",target="$GITHUB_WORKSPACE" --workdir="$GITHUB_WORKSPACE" --env NOXSESSION=$NOXSESSION ${IMAGE_NAME} nox --python=${{ matrix.python-version }}