Build Docker image on slim base

.github/workflows/test.yaml

@@ -48,9 +48,9 @@ jobs:
         run: |
           docker compose -f playwright-backend-docker-compose.yml up -d
           docker ps
-      - name: Copy config file
-        run: cp config/config.devenv.json public/config.json
       - name: Run Playwright tests
+        env:
+          USE_DOCKER: 1
         run: yarn playwright test
       - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         if: ${{ !cancelled() }}

Dockerfile

@@ -6,7 +6,7 @@ COPY ./dist /dist
 WORKDIR /dist/assets
 RUN gzip -k ../index.html *.js *.map *.css *.wasm *-app-*.json 
 
-FROM nginxinc/nginx-unprivileged:alpine
+FROM nginxinc/nginx-unprivileged:alpine-slim
 
 COPY --from=builder ./dist /app
 

playwright-backend-docker-compose.yml

@@ -54,7 +54,7 @@ services:
   element-web:
     image: ghcr.io/element-hq/element-web:develop
     volumes:
-      - ./backend/ew.test.config.json:/app/config.json
+      - ./backend/ew.test.config.json:/app/config.json:Z
     environment:
       ELEMENT_WEB_PORT: 81
     ports:

playwright.config.ts

@@ -7,6 +7,10 @@ Please see LICENSE in the repository root for full details.
 
 import { defineConfig, devices } from "@playwright/test";
 
+const baseURL = process.env.USE_DOCKER
+  ? "http://localhost:8080"
+  : "https://localhost:3000";
+
 /**
  * See https://playwright.dev/docs/test-configuration.
  */
@@ -25,7 +29,7 @@ export default defineConfig({
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
   use: {
     /* Base URL to use in actions like `await page.goto('/')`. */
-    baseURL: "https://localhost:3000",
+    baseURL,
 
     /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
     trace: "on-first-retry",
@@ -73,8 +77,8 @@ export default defineConfig({
 
   /* Run your local dev server before starting the tests */
   webServer: {
-    command: "yarn dev",
-    url: "https://localhost:3000",
+    command: "./scripts/playwright-webserver-command.sh",
+    url: baseURL,
     reuseExistingServer: !process.env.CI,
     ignoreHTTPSErrors: true,
   },

playwright/fixtures/widget-user.ts

@@ -63,16 +63,27 @@ const CONFIG_JSON = {
  * Set the Element Call URL in the dev tool settings using `window.mxSettingsStore` via `page.evaluate`.
  * @param page
  */
-async function setDevToolElementCallDevUrl(page: Page): Promise<void> {
-  await page.evaluate(() => {
-    window.mxSettingsStore.setValue(
-      "Developer.elementCallUrl",
-      null,
-      "device",
-      "https://localhost:3000/room",
-    );
-  });
-}
+const setDevToolElementCallDevUrl = process.env.USE_DOCKER
+  ? async (page: Page): Promise<void> => {
+      await page.evaluate(() => {
+        window.mxSettingsStore.setValue(
+          "Developer.elementCallUrl",
+          null,
+          "device",
+          "https://localhost:3000/room",
+        );
+      });
+    }
+  : async (page: Page): Promise<void> => {
+      await page.evaluate(() => {
+        window.mxSettingsStore.setValue(
+          "Developer.elementCallUrl",
+          null,
+          "device",
+          "https://localhost:3000/room",
+        );
+      });
+    };
 
 export const widgetTest = test.extend<MyFixtures>({
   asWidget: async ({ browser, context }, pUse) => {

scripts/playwright-webserver-command.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+if [ -n "$USE_DOCKER" ]; then
+    set -ex
+    yarn build
+    docker build -t element-call:testing .
+    docker run --rm --name element-call-testing -p 8080:8080 -v ./config/config.devenv.json:/app/config/json:ro,Z element-call:testing
+else
+    cp config/config.devenv.json public/config.json
+    exec yarn dev
+fi