Chore: devcontainer cleanups, update python version

.devcontainer/Dockerfile

@@ -1,4 +1,6 @@
-FROM python:3.10
+ARG PYTHON_VERSION=3.11
+
+FROM python:${PYTHON_VERSION}
 
 ENV PYTHONDONTWRITEBYTECODE=1 \
     PYTHONUNBUFFERED=1 \
@@ -15,7 +17,7 @@ USER $USER
 WORKDIR /home/$USER/src
 
 # update PATH for local pip installs
-ENV PATH "$PATH:/home/$USER/.local/bin"
+ENV PATH="$PATH:/home/$USER/.local/bin"
 
 # upgrade pip
 RUN python -m pip install --upgrade pip

.devcontainer/devcontainer.json

@@ -1,25 +1,29 @@
 {
   "name": "compilerla/template-devcontainer",
-  "dockerComposeFile": ["compose.yml"],
+  "dockerComposeFile": ["../compose.yml"],
   "service": "dev",
   "runServices": ["dev", "docs"],
   "workspaceFolder": "/home/compiler/src",
   "postAttachCommand": ["/bin/bash", ".devcontainer/postAttach.sh"],
-  // Set *default* container specific settings.json values on container create.
-  "settings": {
-    "terminal.integrated.defaultProfile.linux": "bash",
-    "terminal.integrated.profiles.linux": {
-      "bash": {
-        "path": "/bin/bash"
-      }
+  "customizations": {
+    "vscode": {
+      // Set *default* container specific settings.json values on container create.
+      "settings": {
+        "terminal.integrated.defaultProfile.linux": "bash",
+        "terminal.integrated.profiles.linux": {
+          "bash": {
+            "path": "/bin/bash"
+          }
+        }
+      },
+      // Add the IDs of extensions you want installed when the container is created.
+      "extensions": [
+        "bpruitt-goddard.mermaid-markdown-syntax-highlighting",
+        "DavidAnson.vscode-markdownlint",
+        "eamodio.gitlens",
+        "esbenp.prettier-vscode",
+        "mhutchie.git-graph"
+      ]
     }
-  },
-  // Add the IDs of extensions you want installed when the container is created.
-  "extensions": [
-    "bpruitt-goddard.mermaid-markdown-syntax-highlighting",
-    "DavidAnson.vscode-markdownlint",
-    "eamodio.gitlens",
-    "esbenp.prettier-vscode",
-    "mhutchie.git-graph"
-  ]
+  }
 }

.devcontainer/devcontainer.pre-built.json

@@ -2,21 +2,25 @@
   "name": "compilerla/template-devcontainer-pre-built",
   "image": "ghcr.io/compilerla/template-devcontainer:main",
   "postAttachCommand": "pre-commit install --overwrite",
-  // Set *default* container specific settings.json values on container create.
-  "settings": {
-    "terminal.integrated.defaultProfile.linux": "bash",
-    "terminal.integrated.profiles.linux": {
-      "bash": {
-        "path": "/bin/bash"
-      }
+  "customizations": {
+    "vscode": {
+      // Set *default* container specific settings.json values on container create.
+      "settings": {
+        "terminal.integrated.defaultProfile.linux": "bash",
+        "terminal.integrated.profiles.linux": {
+          "bash": {
+            "path": "/bin/bash"
+          }
+        }
+      },
+      // Add the IDs of extensions you want installed when the container is created.
+      "extensions": [
+        "bpruitt-goddard.mermaid-markdown-syntax-highlighting",
+        "DavidAnson.vscode-markdownlint",
+        "eamodio.gitlens",
+        "esbenp.prettier-vscode",
+        "mhutchie.git-graph"
+      ]
     }
-  },
-  // Add the IDs of extensions you want installed when the container is created.
-  "extensions": [
-    "bpruitt-goddard.mermaid-markdown-syntax-highlighting",
-    "DavidAnson.vscode-markdownlint",
-    "eamodio.gitlens",
-    "esbenp.prettier-vscode",
-    "mhutchie.git-graph"
-  ]
+  }
 }

.devcontainer/postAttach.sh

@@ -2,4 +2,5 @@
 set -eux
 
 # initialize pre-commit
+git config --global --add safe.directory /home/$USER/src
 pre-commit install --overwrite

.github/CODEOWNERS

@@ -0,0 +1,2 @@
+# default to engineering team
+* @compilerla/engineering

.github/workflows/publish-devcontainer.yml

@@ -13,32 +13,41 @@ defaults:
 jobs:
   publish:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.11", "3.12"]
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Docker Login to GitHub Container Registry
+      - name: Docker Login to GHCR
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Build, tag, and push image to GitHub Container Registry
+      - name: Build, tag, and push image to GHCR [python ${{ matrix.python-version }}]
         uses: docker/build-push-action@v6
         with:
           builder: ${{ steps.buildx.outputs.name }}
-          build-args: GIT-SHA=${{ github.sha }}
+          build-args: |
+            GIT-SHA=${{ github.sha }}
+            PYTHON_VERSION=${{ matrix.python-version }}
           cache-from: type=gha,scope=compilerla
           cache-to: type=gha,scope=compilerla,mode=max
           context: .
           file: .devcontainer/Dockerfile
+          platforms: linux/amd64,linux/arm64
           push: true
           tags: |
-            ghcr.io/${{ github.repository }}:${{ github.ref_name }}
-            ghcr.io/${{ github.repository }}:${{ github.sha }}
+            ${{ matrix.python-version == '3.11' && format('ghcr.io/{0}:main', github.repository) || format('ghcr.io/{0}:main_{1}', github.repository, matrix.python-version) }}
+            ${{ matrix.python-version == '3.11' && format('ghcr.io/{0}:{1}', github.repository, github.sha) || format('ghcr.io/{0}:{1}_{2}', github.repository, github.sha, matrix.python-version) }}

README.md

@@ -4,9 +4,13 @@ A [template repository][template-repo] with a minimal [VS Code devcontainer][dev
 
 Read the full documentation online: <https://compilerla.github.io/template-devcontainer>
 
+## Why?
+
+Read more in our blog post: [How to support a platform-agnostic engineering team with VS Code Dev Containers](https://compiler.la/blog/2024/devcontainer-platform-agnostic-team).
+
 ## Features
 
-- Base Docker image `python:3.10` includes support for common dev tooling like `git`, `curl`, `pip`, and `pre-commit`
+- Base Docker image `python:3.11` includes support for common dev tooling like `git`, `curl`, `pip`, and `pre-commit`
 - Includes VS Code extensions like [`GitLens`][gitlens] and [`Prettier`][prettier] and good default settings for the editor
 - The [`pre-commit` configuration][pre-commit-config] includes a number of useful [`pre-commit-hooks`][pre-commit-hooks] and
   Compiler's [`conventional-pre-commit`][conventional-pre-commit] hook

.devcontainer/compose.yml → compose.yml

@@ -1,13 +1,13 @@
-name: compilerla/template-devcontainer
+name: template-devcontainer
 
 services:
   dev:
     build:
-      context: ..
+      context: .
       dockerfile: .devcontainer/Dockerfile
     image: compilerla/template-devcontainer:main
     volumes:
-      - ../:/home/compiler/src
+      - ./:/home/compiler/src
 
   docs:
     image: compilerla/template-devcontainer:main
@@ -16,4 +16,4 @@ services:
     ports:
       - "8000"
     volumes:
-      - ../:/home/compiler/src
+      - ./:/home/compiler/src

docs/README.md

@@ -20,6 +20,8 @@ Docs are built using [`mkdocs`](https://www.mkdocs.org/). This site is built usi
 
 In no particular order, here are some reasons Compiler likes to use devcontainers as part of our software engineering workflow:
 
+_Read more in our blog post: [How to support a platform-agnostic engineering team with VS Code Dev Containers](https://compiler.la/blog/2024/devcontainer-platform-agnostic-team)_.
+
 | Reason                     | More                                                                                                                                                                                                                                                                                                                           |
 | -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
 | **Cross-platform**         | With only VS Code and Docker as dependencies, devcontainers allow developers on Linux, Mac, and Windows to work in a consistent environment, no matter the project's stack                                                                                                                                                     |
@@ -37,7 +39,7 @@ Some of our recent work built on the devcontainer pattern includes:
 - [`cal-itp/benefits`](https://github.com/cal-itp/benefits) (Python/Django web app)
 - [`cal-itp/eligibility-api`](https://github.com/cal-itp/eligibility-api) (Python API library)
 - [`cal-itp/eligibility-server`](https://github.com/cal-itp/eligibility-server) (Python/Flask API server)
-- [`cal-itp/hashfields`](https://github.com/cal-itp/hashfields) (.NET core CLI tool)
+- [`cal-itp/hashfields`](https://github.com/cal-itp/hashfields) (Python CLI tool)
+- [`cal-itp/mobility-marketplace`](https://github.com/cal-itp/mobility-marketplace) (Jekyll static site)
 - [`compilerla/compiler.la`](https://github.com/compilerla/compiler.la) (Jekyll static site)
 - [`compilerla/conventional-pre-commit`](https://github.com/compilerla/conventional-pre-commit) (Python pre-commit hook)
-- [`compilerla/intake-html-table`](https://github.com/compilerla/intake-html-table) (Python intake plugin)

docs/features/devcontainer.md

@@ -24,7 +24,7 @@ The devcontainer's image is called `compilerla/template-devcontainer`.
 
 ### Base
 
-The image is based on [`python:3.10`](https://hub.docker.com/_/python), to ease installation of common tooling like
+The image is based on [`python:3.11`](https://hub.docker.com/_/python), to ease installation of common tooling like
 [`mkdocs`](docs.md) and [`pre-commit`](pre-commit.md).
 
 ### Setup

docs/requirements.txt

@@ -1,3 +1,4 @@
+mdx_truly_sane_lists
 mkdocs
 mkdocs-awesome-pages-plugin
 mkdocs-macros-plugin

docs/usage/reference-image.md

@@ -6,11 +6,17 @@
     - **GHCR Packages:** [`compilerla/template-devcontainer`](https://github.com/compilerla/template-devcontainer/pkgs/container/template-devcontainer)
     - **Minimal devcontainer.json:** [`devcontainer.pre-built.json`](https://github.com/compilerla/template-devcontainer/blob/main/.devcontainer/devcontainer.pre-built.json)
 
-`template-devcontainer` maintains a [GitHub Actions](https://github.com/features/actions) workflow that publishes the Docker
-image to [GitHub Container Registry (GHCR)](https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry).
+`template-devcontainer` maintains a [GitHub Actions](https://github.com/features/actions) workflow that publishes Docker
+images to [GitHub Container Registry (GHCR)](https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry).
 
-The publish is triggered for every push to the `main` branch, and the image tag `:main` always represents the latest commit on
-that branch.
+The publish is triggered for every push to the `main` branch, and multiple image tags are created:
+
+- `main` uses the default Python version of 3.11
+- `main_3.10` uses Python 3.10
+- `main_3.12` uses Python 3.12
+
+There are also corresponding tags for the git SHA of the commit on `main` that triggered the build
+(e.g. `sha`, `sha_3.10`, and `sha_3.12`).
 
 This makes the pre-built devcontainer image available for use in other projects, potentially decreasing startup and onboarding
 time even further.

docs/usage/run-local.md

@@ -8,8 +8,7 @@
 
 ### Docker
 
-Docker is required; the easiest way to get Docker is by downloading and installing [Docker Desktop](https://www.docker.com/products/docker-desktop/)
-for Linux, Mac (including M2!), and Windows.
+Docker is required; the easiest way to get Docker is by downloading and installing [Docker Desktop](https://www.docker.com/products/docker-desktop/) for Linux, Mac (including Apple Silicon!) and Windows.
 
 ### VS Code
 

mkdocs.yml

@@ -43,6 +43,7 @@ markdown_extensions:
   - attr_list
   - codehilite:
       linenums: true
+  - mdx_truly_sane_lists
   - pymdownx.emoji:
       emoji_index: !!python/name:materialx.emoji.twemoji
       emoji_generator: !!python/name:materialx.emoji.to_svg