feat: add production blue-green frontend deployment

src/deployment/blueGreenDeployment.test.mjs

@@ -0,0 +1,23 @@
+import assert from 'node:assert/strict'
+import { readFile } from 'node:fs/promises'
+import test from 'node:test'
+
+const script = (await readFile(new URL('../../scripts/deploy-production.sh', import.meta.url), 'utf8'))
+  .replaceAll('\r\n', '\n')
+
+test('production frontend starts and validates the candidate before switching nginx', () => {
+  const start = script.indexOf('compose run -d --no-deps --name "$candidate"')
+  const health = script.indexOf('docker exec "$candidate" wget')
+  const nginx = script.indexOf('nginx -t || ! nginx -s reload')
+  const stop = script.indexOf('docker stop --time 30 "$active_container"')
+  const state = script.indexOf('mv -f "$state_file.tmp" "$state_file"')
+  assert.ok(start >= 0 && start < health && health < nginx && nginx < stop && stop < state)
+})
+
+test('production frontend supports both slots and restores nginx on failure', () => {
+  assert.match(script, /target_port=\$\(\(base_port \+ 10000\)\)/)
+  assert.match(script, /cp -f "\$nginx_config" "\$backup"/)
+  assert.match(script, /cp -f "\$backup" "\$nginx_config"/)
+  assert.match(script, /docker rm -f "\$candidate"/)
+  assert.match(script, /gateway-active:firstleg-production-gateway/)
+})

src/deployment/nginxConfig.test.ts

@@ -60,7 +60,9 @@ describe('admin nginx deployment config', () => {
     expect(jenkinsfile).toContain("credentialsId: 'firstleg-production-ssh'")
     expect(jenkinsfile).toContain('git rev-parse origin/main')
     expect(productionCompose).toContain('127.0.0.1:${HOST_PORT:-9001}:80')
-    expect(productionCompose).toContain('API_UPSTREAM: "http://gateway:9000"')
+    expect(productionCompose).toContain('API_UPSTREAM: "http://gateway-active:9000"')
+    expect(productionCompose).toContain('OVERSEAS_API_UPSTREAM: "http://gateway-overseas-active:9300"')
+    expect(productionCompose).toContain('name: firstleg-production-routing')
     expect(productionCompose).toContain('name: firstleg-prod-infra-network')
   })