feat: add Playwright Python and Chromium

e2e-tests needs in-cluster Chromium. Browsers live at
/ms-playwright so ARC's 2 GiB emptyDir on /home/runner/.cache
cannot mask them.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: miragecentury

Containerfile

@@ -233,6 +233,20 @@ RUN pip3 install --no-cache-dir --break-system-packages pre-commit \
     && python3.13 -m pip install --no-cache-dir --break-system-packages --upgrade \
          "setuptools>=78.1.1" "msgpack>=1.2.1"
 
+# Playwright + Chromium for in-cluster e2e (Laelidona/e2e-tests).
+# Browsers MUST live at /ms-playwright — ARC lite mounts a 2 GiB memory emptyDir
+# on /home/runner/.cache, which would mask ~/.cache/ms-playwright.
+ARG PLAYWRIGHT_VERSION=1.62.0
+ENV PLAYWRIGHT_VERSION=${PLAYWRIGHT_VERSION} \
+    PLAYWRIGHT_BROWSERS_PATH=/ms-playwright
+# hadolint ignore=DL3008,DL3013
+RUN python3.12 -m pip install --no-cache-dir --break-system-packages \
+      "playwright==${PLAYWRIGHT_VERSION}" \
+    && python3.12 -m playwright install --with-deps chromium \
+    && chmod -R a+rX "${PLAYWRIGHT_BROWSERS_PATH}" \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
 # Base stage must not end as root (hadolint DL3002)
 USER runner
 

README.md

@@ -15,6 +15,7 @@ Container image based on the [GitHub Actions Runner](https://github.com/actions/
 | Python | 3.12, 3.13 (via deadsnakes PPA) |
 | Poetry | latest |
 | UV | latest |
+| Playwright (Python) + Chromium | `PLAYWRIGHT_VERSION` (browsers at `/ms-playwright`) |
 
 ### DevOps CLIs
 

manifest.yaml

@@ -28,6 +28,7 @@ build:
     - RUST_VERSION=1.97.1
     - ZIG_VERSION=0.14.0
     - CARGO_LAMBDA_VERSION=1.9.1
+    - PLAYWRIGHT_VERSION=1.62.0
   labels:
     - org.opencontainers.image.source=https://github.com/deerhide/python-github-runner
     - org.opencontainers.image.description="Python GitHub Runner"

renovate.json

@@ -157,6 +157,14 @@
       "depNameTemplate": "cargo-lambda/cargo-lambda",
       "datasourceTemplate": "github-releases",
       "extractVersionTemplate": "^v?(?<version>.+)$"
+    },
+    {
+      "customType": "regex",
+      "description": "Update Playwright (Python) version",
+      "fileMatch": ["^Containerfile$", "^manifest\\.yaml$"],
+      "matchStrings": ["PLAYWRIGHT_VERSION=(?<currentValue>\\S+)"],
+      "depNameTemplate": "playwright",
+      "datasourceTemplate": "pypi"
     }
   ]
 }