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):
out = kubectl.kubectl(
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.kube_wait_field("pods",
"-l app=clickhouse-operator",
".status.containerStatuses[*].ready",
"true,true",
ns=settings.operator_namespace)
assert kubectl.kube_get_count(
"pod", ns='--all-namespaces',
label="-l app=clickhouse-operator") > 0, error()
out = kubectl.kubectl("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.kube_deletens(kubectl.namespace)
kubectl.kube_createns(kubectl.namespace)
check_monitoring_chi(operator_namespace, operator_pod, [])
with And("created simple clickhouse installation"):
config = kubectl.get_full_path(
"../docs/chi-examples/01-simple-layout-01-1shard-1repl.yaml")
kubectl.create_and_check(config, {
"object_counts": [1, 1, 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.kubectl(
f"exec -n {operator_namespace} {operator_pod} -c metrics-exporter reboot"
)
time.sleep(15)
kubectl.kube_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.kube_delete(config)
check_monitoring_chi(operator_namespace, operator_pod, [])
def test_metrics_exporter_with_multiple_clickhouse_version():
def check_monitoring_metrics(operator_namespace,
operator_pod,
expect_result,
max_retries=10):
with And(
f"metrics-exporter /metrics enpoint result should match with {expect_result}"
):
for i in range(1, max_retries):
out = kubectl.kubectl(
f"exec {operator_pod} -c metrics-exporter wget -- -O- -q http://127.0.0.1:8888/metrics",
ns=operator_namespace)
all_strings_expected_done = True
for string, exists in expect_result.items():
all_strings_expected_done = (exists == (string in out))
if not all_strings_expected_done:
break
if all_strings_expected_done:
break
with Then("Not ready. Wait for " + str(i * 5) + " seconds"):
time.sleep(i * 5)
assert all_strings_expected_done, error()
with Given("clickhouse-operator pod exists"):
out = kubectl.kubectl("get pods -l app=clickhouse-operator",
ns='kube-system').splitlines()[1]
operator_pod = re.split(r'[\t\r\n\s]+', out)[0]
operator_namespace = "kube-system"
with Then("check empty /metrics"):
kubectl.kube_deletens(kubectl.namespace)
kubectl.kube_createns(kubectl.namespace)
check_monitoring_metrics(
operator_namespace,
operator_pod,
expect_result={
'chi_clickhouse_metric_VersionInteger': False,
})
with Then("Install multiple clickhouse version"):
config = kubectl.get_full_path(
"configs/test-017-multi-version.yaml")
kubectl.create_and_check(config, {
"object_counts": [4, 4, 5],
"do_not_delete": True
})
with And("Check not empty /metrics"):
check_monitoring_metrics(
operator_namespace,
operator_pod,
expect_result={
'# HELP chi_clickhouse_metric_VersionInteger':
True,
'# TYPE chi_clickhouse_metric_VersionInteger gauge':
True,
'chi_clickhouse_metric_VersionInteger{chi="test-017-multi-version",hostname="chi-test-017-multi-version-default-0-0':
True,
'chi_clickhouse_metric_VersionInteger{chi="test-017-multi-version",hostname="chi-test-017-multi-version-default-1-0':
True,
'chi_clickhouse_metric_VersionInteger{chi="test-017-multi-version",hostname="chi-test-017-multi-version-default-2-0':
True,
'chi_clickhouse_metric_VersionInteger{chi="test-017-multi-version",hostname="chi-test-017-multi-version-default-3-0':
True,
})
with Then("check empty /metrics after delete namespace"):
kubectl.kube_deletens(kubectl.namespace)
check_monitoring_metrics(
operator_namespace,
operator_pod,
expect_result={
'chi_clickhouse_metric_VersionInteger': False,
})