build: allow running tests inside of a container

Some of the tests have a hard time on modern macOS, mostly because
of how Bazel handles file paths with whitespace. By running those
tests inside of a Linux container, they can pass.

Longer term, it would be great if running all tests outside of Linux
would work but that's a taller order.

Author: jkrems

.ng-dev/Dockerfile

@@ -0,0 +1,11 @@
+FROM node:22
+
+RUN apt-get update && apt-get install -y \
+  vim \
+  less \
+  chromium
+
+ENV CHROME_BIN "/usr/bin/chromium"
+ENV PUPPETEER_EXECUTABLE_PATH "/usr/bin/chromium"
+
+USER node

modules/testing/builder/projects/hello-world-app/karma.conf.js

@@ -45,7 +45,10 @@ module.exports = function(config) {
     customLaunchers: {
       ChromeHeadlessCI: {
         base: 'ChromeHeadless',
-        flags: ['--disable-gpu'],
+        flags: [
+          '--disable-gpu',
+          ...(process.env.CHROME_BIN === '/usr/bin/chromium' ? ['--no-sandbox'] : []),
+        ],
       },
     },
     singleRun: false,

package.json

@@ -18,8 +18,9 @@
     "lint": "eslint --cache --max-warnings=0 \"**/*.@(ts|mts|cts)\"",
     "templates": "yarn admin templates",
     "validate": "yarn admin validate",
-    "postinstall": "yarn webdriver-update && yarn husky",
+    "postinstall": "yarn webdriver-update-if-possible && yarn husky",
     "//webdriver-update-README": "ChromeDriver version must match Puppeteer Chromium version, see https://github.com/GoogleChrome/puppeteer/releases http://chromedriver.chromium.org/downloads",
+    "webdriver-update-if-possible": "test -x /usr/bin/chromium || yarn webdriver-update",
     "webdriver-update": "webdriver-manager update --standalone false --gecko false --versions.chrome 106.0.5249.21",
     "public-api:check": "node goldens/public-api/manage.js test",
     "ng-dev": "node --no-warnings=ExperimentalWarning --loader ts-node/esm/transpile-only node_modules/@angular/ng-dev/bundles/cli.mjs",

packages/angular_devkit/build_angular/test/hello-world-lib/projects/lib/karma.conf.js

@@ -40,7 +40,10 @@ module.exports = function (config) {
     customLaunchers: {
       ChromeHeadlessCI: {
         base: 'ChromeHeadless',
-        flags: ['--disable-gpu']
+        flags: [
+          '--disable-gpu',
+          ...(process.env.CHROME_BIN === '/usr/bin/chromium' ? ['--no-sandbox'] : []),
+        ],
       }
     },
     singleRun: false