Add liveness test

Author: jvpasinatto

e2e-tests/liveness/test_liveness.py

@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+
+import pytest
+import logging
+import re
+
+import tools
+
+logger = logging.getLogger(__name__)
+
+
+@pytest.fixture(scope="class", autouse=True)
+def config(create_infra):
+    """Configuration for tests"""
+    return {
+        "namespace": create_infra("liveness"),
+        "cluster": "liveness",
+    }
+
+
+@pytest.fixture(scope="class", autouse=True)
+def setup_tests(test_paths):
+    """Setup test environment"""
+    tools.kubectl_bin("apply", "-f", f"{test_paths['conf_dir']}/secrets_with_tls.yml")
+
+
+class TestLiveness:
+    @pytest.mark.dependency()
+    def test_create_first_cluster(self, config, test_paths):
+        """Create first PSMDB cluster"""
+        tools.apply_cluster(f"{test_paths['test_dir']}/conf/{config['cluster']}-rs0.yml")
+        tools.wait_for_running(f"{config['cluster']}-rs0", 3)
+
+        tools.compare_kubectl(
+            test_paths["test_dir"], f"statefulset/{config['cluster']}-rs0", config["namespace"]
+        )
+
+    @pytest.mark.dependency(depends=["TestLiveness::test_create_first_cluster"])
+    def test_liveness_check_fails_with_invalid_ssl_option(self, config):
+        tools.kubectl_bin(
+            "exec",
+            f"{config['cluster']}-rs0-0",
+            "-c",
+            "mongod",
+            "--",
+            "bash",
+            "-c",
+            "/opt/percona/mongodb-healthcheck k8s liveness --ssl",
+            check=False,
+        )
+
+        logs_output = tools.kubectl_bin(
+            "exec",
+            f"{config['cluster']}-rs0-0",
+            "-c",
+            "mongod",
+            "--",
+            "bash",
+            "-c",
+            "ls /data/db/mongod-data/logs",
+        )
+        log_count = logs_output.count("mongodb-healthcheck.log")
+        assert log_count == 1, f"Expected 1 healthcheck log file, got {log_count}"
+
+        rotated_count = len(re.findall(r"mongodb-healthcheck-.*\.log\.gz", logs_output))
+        assert rotated_count >= 1, f"Expected >=1 rotated logs, got {rotated_count}"
+
+    @pytest.mark.dependency(
+        depends=["TestLiveness::test_liveness_check_fails_with_invalid_ssl_option"]
+    )
+    def test_change_liveness_config(self, config, test_paths):
+        tools.apply_cluster(f"{test_paths['test_dir']}/conf/{config['cluster']}-rs0-changed.yml")
+
+        tools.wait_for_running(f"{config['cluster']}-rs0", 3)
+
+        tools.compare_kubectl(
+            test_paths["test_dir"],
+            f"statefulset/{config['cluster']}-rs0",
+            config["namespace"],
+            "-changed",
+        )