Bypass proxies for blackbox healthcheck

.gitlab-ci.yml

@@ -61,6 +61,8 @@ rails e2e spec:
     MAILGUN_DOMAIN: blackbox.example.com
     RAILS_LOG_TO_STDOUT: "1"
     RAILS_SERVE_STATIC_FILES: "1"
+    NO_PROXY: app,postgres,localhost,127.0.0.1
+    no_proxy: app,postgres,localhost,127.0.0.1
     TURNIERE_E2E_BASE_URL: http://app:3000
     TURNIERE_E2E_EMAIL: e2e@example.com
     TURNIERE_E2E_PASSWORD: password123

tasks.py

@@ -45,10 +45,11 @@ def _env(**overrides):
 def _wait_for_http(base_url=TEST_BASE_URL, timeout=60):
     deadline = time.time() + timeout
     healthz_url = f"{base_url}/healthz"
+    opener = urllib.request.build_opener(urllib.request.ProxyHandler({}))
 
     while time.time() < deadline:
         try:
-            with urllib.request.urlopen(healthz_url) as response:
+            with opener.open(healthz_url) as response:
                 if response.status == 200:
                     return
         except Exception: