Add a workflow to build base Python images with poetry

2 files changed, 74 insertions, 0 deletions

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..98d2e61
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,54 @@
+name: Build
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        python_version: [3.9-slim, 3.10-slim, 3-slim]
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      # The current version (v2) of Docker's build-push action uses
+      # buildx, which comes with BuildKit features that help us speed
+      # up our builds using additional cache features. Buildx also
+      # has a lot of other features that are not as relevant to us.
+      #
+      # See https://github.com/docker/build-push-action
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to Github Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN  }}
+
+      # Build and push the container to the GitHub Container
+      # Repository. The container will be tagged as "latest"
+      # and with the short SHA of the commit.
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          cache-from: type=registry,ref=ghcr.io/chrislovering/python-poetry-base:${{ matrix.python_version }}
+          cache-to: type=inline
+          tags: |
+            ghcr.io/chrislovering/python-poetry-base:${{ matrix.python_version }}
+          build-args: |
+            python_version=${{ matrix.python_version }}
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..eb2538c
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,20 @@
+ARG python_version=3.10
+
+FROM --platform=linux/amd64 python:$python_version
+
+# POETRY_VIRTUALENVS_IN_PROJECT is required to ensure in-projects venvs mounted from the host in dev
+# don't get prioritised by `poetry run`
+ENV POETRY_VERSION=1.2.0 \
+  POETRY_HOME="/opt/poetry/home" \
+  POETRY_CACHE_DIR="/opt/poetry/cache" \
+  POETRY_NO_INTERACTION=1 \
+  POETRY_VIRTUALENVS_IN_PROJECT=false
+
+ENV PATH="$POETRY_HOME/bin:$PATH"
+
+RUN apt-get update \
+  && apt-get -y upgrade \
+  && apt-get install --no-install-recommends -y curl \
+  && apt-get clean && rm -rf /var/lib/apt/lists/*
+
+RUN curl -sSL https://install.python-poetry.org | python