Add devcontainer config

Author: sebst

.devcontainer/Dockerfile

@@ -0,0 +1,50 @@
+ARG VARIANT=ubuntu-24.04
+FROM mcr.microsoft.com/vscode/devcontainers/base:${VARIANT}
+
+
+ENV TZ=UTC
+ENV DEBIAN_FRONTEND=noninteractive
+ENV DEVCONTAINER=true
+
+RUN apt-get update
+RUN apt-get -y upgrade
+
+RUN apt-get install -y --no-install-recommends \
+    ca-certificates \
+    curl \
+    git \
+    make \
+    build-essential \
+    libssl-dev \
+    zlib1g-dev \
+    libbz2-dev \
+    libreadline-dev \
+    libsqlite3-dev \
+    wget \
+    llvm \
+    libncurses5-dev \
+    libncursesw5-dev \
+    xz-utils \
+    tk-dev \
+    libffi-dev \
+    liblzma-dev
+
+# Install Pyenv
+RUN curl https://pyenv.run | bash
+RUN echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
+RUN echo 'command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
+RUN echo 'eval "$(pyenv init -)"' >> ~/.bashrc
+
+RUN /root/.pyenv/bin/pyenv install 3.12
+RUN /root/.pyenv/bin/pyenv global 3.12
+RUN apt-get install -y --no-install-recommends postgresql postgresql-contrib libpq-dev
+RUN ls /root/.pyenv/bin
+RUN /root/.pyenv/shims/python -m pip install --upgrade pip
+RUN /root/.pyenv/shims/python -m pip install psycopg2
+
+
+# __DEVCONTAINER_SNIPPET_INSERT__ (control where snippets get inserted using the devcontainer CLI)
+
+
+# Switch back to dialog for any ad-hoc use of apt-get
+ENV DEBIAN_FRONTEND=dialog

.devcontainer/devcontainer.json

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+{
+    "name": "devcontainers-ci",
+    "build": {
+        "dockerfile": "./Dockerfile",
+        "context": ".",
+        // "cacheFrom": "ghcr.io/bascodes/prebuild-devcontainer-gha:cache"
+    },
+    "remoteUser": "root",
+    "features": {
+        "ghcr.io/devcontainers/features/github-cli:1": "latest"
+    }
+}

.github/workflows/prebuild-devcontainer.yml

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+name: Pre-build Devcontainer
+
+on:
+    workflow_dispatch:
+    push:
+        branches:
+        - main
+
+jobs:
+    build_devcontainer:
+        runs-on: ubuntu-24.04
+        steps:
+        - name: Checkout code
+          uses: actions/checkout@v4
+
+        - name: Set up QEMU
+          uses: docker/setup-qemu-action@v3
+
+        - name: Set up Docker Buildx
+          uses: docker/setup-buildx-action@v3
+          with:
+            version: v0.16.1
+            platforms: linux/amd64,linux/arm64
+            install: true
+            use: true
+
+        - name: Login to GitHub Container Registry
+          uses: docker/login-action@v3
+          with:
+            registry: ghcr.io
+            username: ${{ github.repository_owner }}
+            password: ${{ secrets.GITHUB_TOKEN }}
+
+        - name: Pre-build dev container image
+          uses: devcontainers/ci@v0.3
+          with:
+            imageName: ghcr.io/bascodes/prebuild-devcontainer-gha
+            cacheTo: type=registry,ref=ghcr.io/bascodes/prebuild-devcontainer-gha:cache
+            runCmd: sleep 1
+            push: always
+            platform: linux/amd64,linux/arm64

src/main.py

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+def is_python_3_12():
+    try:
+        s = f"{f"{f"{f"{f"{f"{1+1}"}"}"}"}"}"
+    except:
+        return False
+    return True
+
+def main():
+    if is_python_3_12():
+        print("Python 3.12")
+    else:
+        print("Not Python 3.12")
+
+if __name__ == "__main__":
+    main()