fix: Don't create cert error https server if https is not enabled

test/test_fallback.py

@@ -0,0 +1,53 @@
+import os.path
+
+import backoff
+import pytest
+import requests
+
+
+@pytest.fixture
+def data_dir():
+    return f"{os.path.splitext(__file__)[0]}.data"
+
+
+@pytest.fixture
+def docker_compose_file(data_dir, compose_file):
+    return os.path.join(data_dir, compose_file)
+
+
+@pytest.fixture
+def get(docker_compose, nginxproxy, want_err_re):
+
+    @backoff.on_exception(
+        backoff.constant,
+        requests.exceptions.RequestException,
+        giveup=lambda e: want_err_re and want_err_re.search(str(e)),
+        interval=.3,
+        max_tries=30,
+        jitter=None)
+    def _get(url):
+        return nginxproxy.get(url, allow_redirects=False)
+
+    return _get
+
+
+@pytest.mark.parametrize("compose_file,url,want_code,want_err_re", [
+    # Has default.crt.
+    ("withdefault.yml", "http://https-and-http.nginx-proxy.test/", 301, None),
+    ("withdefault.yml", "https://https-and-http.nginx-proxy.test/", 200, None),
+    ("withdefault.yml", "http://https-only.nginx-proxy.test/", 503, None),
+    ("withdefault.yml", "https://https-only.nginx-proxy.test/", 200, None),
+    ("withdefault.yml", "http://http-only.nginx-proxy.test/", 200, None),
+    ("withdefault.yml", "https://http-only.nginx-proxy.test/", 503, None),
+    ("withdefault.yml", "http://missing-cert.nginx-proxy.test/", 200, None),
+    ("withdefault.yml", "https://missing-cert.nginx-proxy.test/", 500, None),
+    ("withdefault.yml", "http://unknown.nginx-proxy.test/", 503, None),
+    ("withdefault.yml", "https://unknown.nginx-proxy.test/", 503, None),
+])
+def test_fallback(get, url, want_code, want_err_re):
+    if want_err_re is None:
+        r = get(url)
+        assert r.status_code == want_code
+    else:
+        with pytest.raises(requests.exceptions.RequestException, match=want_err_re):
+            get(url)