test: add local proxy for wizard/backend/frontend

Dockerfile

@@ -28,4 +28,4 @@ WORKDIR /app
 COPY package*.json ./
 RUN npm install && npm install -g playwright && playwright install chromium
 COPY . .
-CMD ["bash", "-lc", "node server/wizard-proxy.mjs & npx playwright test"]
+CMD ["bash", "-lc", "node server/proxy.mjs & npx playwright test"]

server/proxy.mjs

@@ -0,0 +1,55 @@
+import http from 'http'
+
+const createProxy = ({ name, listenPort, targetHost, targetPort }) => {
+  http
+    .createServer((req, res) => {
+      const proxyReq = http.request(
+        {
+          hostname: targetHost,
+          port: targetPort,
+          path: req.url,
+          method: req.method,
+          headers: req.headers,
+        },
+        (proxyRes) => {
+          res.writeHead(proxyRes.statusCode || 502, proxyRes.headers)
+          proxyRes.pipe(res)
+        }
+      )
+
+      proxyReq.on('error', (err) => {
+        res.statusCode = 502
+        res.end(`Bad gateway: ${err.message}`)
+      })
+
+      req.pipe(proxyReq)
+    })
+    .listen(listenPort, '127.0.0.1', () => {
+      console.log(`${name} proxy listening on 127.0.0.1:${listenPort} -> ${targetHost}:${targetPort}`)
+    })
+}
+
+const wizardPort = Number(process.env.WIZARD_PORT || 8080)
+const backendPort = Number(process.env.BACKEND_PORT || 8000)
+const frontendPort = Number(process.env.FRONTEND_PORT || 3000)
+
+createProxy({
+  name: 'wizard',
+  listenPort: wizardPort,
+  targetHost: process.env.WIZARD_HOST || 'wizard',
+  targetPort: wizardPort,
+})
+
+createProxy({
+  name: 'backend',
+  listenPort: backendPort,
+  targetHost: process.env.BACKEND_HOST || 'backend',
+  targetPort: backendPort,
+})
+
+createProxy({
+  name: 'frontend',
+  listenPort: frontendPort,
+  targetHost: process.env.FRONTEND_HOST || 'frontend',
+  targetPort: frontendPort,
+})

server/wizard-proxy.mjs

@@ -1,32 +0,0 @@
-import http from 'http'
-
-const listenPort = Number(process.env.WIZARD_PORT || 8080)
-const targetHost = process.env.WIZARD_HOST || 'wizard'
-const targetPort = Number(process.env.WIZARD_PORT || 8080)
-
-http
-  .createServer((req, res) => {
-    const proxyReq = http.request(
-      {
-        hostname: targetHost,
-        port: targetPort,
-        path: req.url,
-        method: req.method,
-        headers: req.headers,
-      },
-      (proxyRes) => {
-        res.writeHead(proxyRes.statusCode || 502, proxyRes.headers)
-        proxyRes.pipe(res)
-      }
-    )
-
-    proxyReq.on('error', (err) => {
-      res.statusCode = 502
-      res.end(`Bad gateway: ${err.message}`)
-    })
-
-    req.pipe(proxyReq)
-  })
-  .listen(listenPort, '127.0.0.1', () => {
-    console.log(`wizard proxy listening on 127.0.0.1:${listenPort} -> ${targetHost}:${targetPort}`)
-  })