Playwright docker improvements (#33213)

* Clean up playwright-common Dockerfile

* Speed up element-web docker build

* Wire up element-desktop playwright tests via nx

* Better debug logs for Element Desktop playwright in CI

* Iterate

* Iterate

* Fix element-desktop screenshot docker

* @electron/fuses

* Partial revert

apps/desktop/playwright/Dockerfile

@@ -1,13 +1,19 @@
 FROM mcr.microsoft.com/playwright:v1.59.1-jammy@sha256:8a0360d39d1973be506dd59002904a774f6d697d4946c94063b3fd006461c8ff
 
-WORKDIR /work/element-desktop
+WORKDIR /work
 
-RUN apt-get update && apt-get -y install xvfb dbus-x11 && apt-get purge -y --auto-remove && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && \
+    apt-get -y install xvfb dbus-x11 && \
+    apt-get purge -y --auto-remove && \
+    rm -rf /var/lib/apt/lists/* && \
+    corepack enable
 
-# Create node_modules & dist dirs so that the volumes have the correct permissions
-RUN mkdir node_modules dist && chown 1000:1000 node_modules dist
+ENV COREPACK_ENABLE_DOWNLOAD_PROMPT=0
+ENV GITHUB_ACTIONS=1
+ENV DEBUG=pw:browser
 
+# switch to node user
 USER 1000:1000
 
-COPY docker-entrypoint.sh /opt/docker-entrypoint.sh
+COPY apps/desktop/playwright/docker-entrypoint.sh /opt/docker-entrypoint.sh
 ENTRYPOINT ["bash", "/opt/docker-entrypoint.sh"]

apps/desktop/playwright/docker-entrypoint.sh

@@ -8,11 +8,5 @@ sleep 2
 
 export DISPLAY=:99
 
-pnpm install --frozen-lockfile
-pnpm build -l --dir
-
 PLAYWRIGHT_HTML_OPEN=never ELEMENT_DESKTOP_EXECUTABLE="./dist/linux-unpacked/element-desktop" \
-  npx playwright test --update-snapshots --reporter line,html "$1"
-
-# Clean up
-rm -R core qemu_* || exit 0
+  exec pnpm -C apps/desktop exec playwright test --update-snapshots --reporter line,html "$1"

apps/desktop/playwright/element-desktop-test.ts

@@ -69,7 +69,13 @@ export const test = base.extend<Fixtures>({
         const args = ["--profile-dir", tmpDir, ...extraArgs];
 
         if (process.env.GITHUB_ACTIONS) {
+            args.push("--disable-gpu");
+
             if (process.platform === "linux") {
+                if (process.getuid() === 0) {
+                    args.push("--no-sandbox");
+                }
+
                 // GitHub Actions hosted runner lacks dbus and a compatible keyring, so we need to force plaintext storage
                 args.push("--storage-mode", "force-plaintext");
             } else if (process.platform === "darwin") {