Add test for NO_PROXY + lightkube fix

tests/integration/high_availability/test_replication.py

@@ -31,6 +31,28 @@
 
 TIMEOUT = 15 * 60
 
+# Quick hack: force NO_PROXY env to have the IP/hostname of the cluster
+from lightkube.core.generic_client import GenericClient
+from lightkube.config.client_adapter import httpx_parameters
+from lightkube.config.kubeconfig import SingleConfig
+import os
+import httpx
+from urllib.parse import urlparse
+
+
+def NoProxyExtendClient(config: SingleConfig, timeout: httpx.Timeout) -> httpx.Client:
+    """Reviews the NO_PROXY setting: it must contain the base_url's IP/hostname, otherwise add it."""
+    # urlparse returns an <ip>|<hostname>:<port>, we do not need the port
+    host = urlparse(config.cluster.server).split(":")[0]
+    print("TESTING" + os.environ["NO_PROXY"])
+    if host not in os.environ["NO_PROXY"].split(","):  # compare with a list, as we want to avoid matching "192.168.0.1" "192.168.0.1/24,10.0.0.0/8" string
+        os.environ["NO_PROXY"] = ",".join([host, os.environ["NO_PROXY"] ])
+    print("TESTING" + os.environ["NO_PROXY"])
+    return httpx.Client(trust_env=False, **httpx_parameters(config, timeout))
+
+# Override the AdapterClient
+GenericClient.AdapterClient = staticmethod(NoProxyExtendClient)
+
 
 @pytest.mark.group(1)
 async def test_build_and_deploy(ops_test: OpsTest) -> None: