def test_metrics_exporter_reboot():
def check_monitoring_chi(operator_namespace, operator_pod, expect_result, max_retries=10):
with And(f"metrics-exporter /chi enpoint result should return {expect_result}"):
for i in range(1, max_retries):
# check /metrics for try to refresh monitored instances
kubectl.launch(
f"exec {operator_pod} -c metrics-exporter -- wget -O- -q http://127.0.0.1:8888/metrics",
ns=operator_namespace
)
# check /chi after refresh monitored instances
out = kubectl.launch(
f"exec {operator_pod} -c metrics-exporter -- wget -O- -q http://127.0.0.1:8888/chi",
ns=operator_namespace
)
out = json.loads(out)
if out == expect_result:
break
with Then("Not ready. Wait for " + str(i * 5) + " seconds"):
time.sleep(i * 5)
assert out == expect_result, error()
with Given("clickhouse-operator is installed"):
kubectl.wait_field("pods", "-l app=clickhouse-operator", ".status.containerStatuses[*].ready", "true,true",
ns=settings.operator_namespace)
assert kubectl.get_count("pod", ns='--all-namespaces', label="-l app=clickhouse-operator") > 0, error()
out = kubectl.launch("get pods -l app=clickhouse-operator", ns=settings.operator_namespace).splitlines()[1]
operator_pod = re.split(r'[\t\r\n\s]+', out)[0]
operator_namespace = settings.operator_namespace
kubectl.delete_ns(kubectl.namespace)
kubectl.create_ns(kubectl.namespace)
check_monitoring_chi(operator_namespace, operator_pod, [])
with And("created simple clickhouse installation"):
config = util.get_full_path("../docs/chi-examples/01-simple-layout-01-1shard-1repl.yaml")
kubectl.create_and_check(
config=config,
check={
"object_counts": {
"statefulset": 1,
"pod": 1,
"service": 2,
},
"do_not_delete": True,
})
expected_chi = [{
"namespace": "test", "name": "simple-01",
"hostnames": ["chi-simple-01-cluster-0-0.test.svc.cluster.local"]
}]
check_monitoring_chi(operator_namespace, operator_pod, expected_chi)
with When("reboot metrics exporter"):
kubectl.launch(f"exec -n {operator_namespace} {operator_pod} -c metrics-exporter -- reboot")
time.sleep(15)
kubectl.wait_field("pods", "-l app=clickhouse-operator",
".status.containerStatuses[*].ready", "true,true",
ns=settings.operator_namespace)
with Then("check metrics exporter still contains chi objects"):
check_monitoring_chi(operator_namespace, operator_pod, expected_chi)
kubectl.delete(config)
check_monitoring_chi(operator_namespace, operator_pod, [])
def test_delete(self):
self.assertEquals(
kubectl.delete('namespace', 'ns-1', binary=TEST_BINARY),
'kubectl delete namespace ns-1')