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scripts/deploy_beta_ams_dev01.sh

@@ -47,18 +47,30 @@ echo "Running remote beta smoke checks"
 ssh ${ssh_opts} "${remote}" "
   set -e
   python3 - <<'PY'
-from urllib import request
+import time
+from urllib import error, request
 
 checks = [
     ('http://127.0.0.1:8100/health', 200),
     ('http://${beta_frontend_bind}:3100/login', 200),
 ]
 
+# Compose returns before the app is ready. Allow the new processes to start
+# instead of reporting a failed deployment on the first connection reset.
+deadline = time.monotonic() + 90
 for url, expected in checks:
-    with request.urlopen(url, timeout=20) as response:
-        if response.status != expected:
-            raise SystemExit(f'{url} returned {response.status}, expected {expected}')
-        print(url, response.status)
+    while True:
+        try:
+            with request.urlopen(url, timeout=5) as response:
+                if response.status != expected:
+                    raise OSError(f'HTTP {response.status}, expected {expected}')
+                print(url, response.status)
+            break
+        except (error.URLError, OSError, TimeoutError) as exc:
+            if time.monotonic() >= deadline:
+                raise SystemExit(f'Beta did not become ready: {url}: {exc}') from exc
+            print(f'Waiting for beta to start: {url}', flush=True)
+            time.sleep(2)
 PY
 "