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import pytest
import json
from openshift_checks.logging.elasticsearch import Elasticsearch
task_vars_config_base = dict(openshift=dict(common=dict(config_base='/etc/origin')))
def canned_elasticsearch(exec_oc=None):
"""Create an Elasticsearch check object with canned exec_oc method"""
check = Elasticsearch("dummy") # fails if a module is actually invoked
if exec_oc:
check._exec_oc = exec_oc
return check
def assert_error(error, expect_error):
if expect_error:
assert error
assert expect_error in error
else:
assert not error
plain_es_pod = {
"metadata": {
"labels": {"component": "es", "deploymentconfig": "logging-es"},
"name": "logging-es",
},
"status": {
"conditions": [{"status": "True", "type": "Ready"}],
"containerStatuses": [{"ready": True}],
"podIP": "10.10.10.10",
},
"_test_master_name_str": "name logging-es",
}
split_es_pod = {
"metadata": {
"labels": {"component": "es", "deploymentconfig": "logging-es-2"},
"name": "logging-es-2",
},
"status": {
"conditions": [{"status": "True", "type": "Ready"}],
"containerStatuses": [{"ready": True}],
"podIP": "10.10.10.10",
},
"_test_master_name_str": "name logging-es-2",
}
def test_check_elasticsearch():
assert 'No logging Elasticsearch pods' in canned_elasticsearch().check_elasticsearch([], {})
# canned oc responses to match so all the checks pass
def _exec_oc(cmd, args, task_vars):
if '_cat/master' in cmd:
return 'name logging-es'
elif '/_nodes' in cmd:
return json.dumps(es_node_list)
elif '_cluster/health' in cmd:
return '{"status": "green"}'
elif ' df ' in cmd:
return 'IUse% Use%\n 3% 4%\n'
else:
raise Exception(cmd)
assert not canned_elasticsearch(_exec_oc).check_elasticsearch([plain_es_pod], {})
def pods_by_name(pods):
return {pod['metadata']['name']: pod for pod in pods}
@pytest.mark.parametrize('pods, expect_error', [
(
[],
'No logging Elasticsearch masters',
),
(
[plain_es_pod],
None,
),
(
[plain_es_pod, split_es_pod],
'Found multiple Elasticsearch masters',
),
])
def test_check_elasticsearch_masters(pods, expect_error):
test_pods = list(pods)
check = canned_elasticsearch(lambda cmd, args, task_vars: test_pods.pop(0)['_test_master_name_str'])
errors = check._check_elasticsearch_masters(pods_by_name(pods), task_vars_config_base)
assert_error(''.join(errors), expect_error)
es_node_list = {
'nodes': {
'random-es-name': {
'host': 'logging-es',
}}}
@pytest.mark.parametrize('pods, node_list, expect_error', [
(
[],
{},
'No logging Elasticsearch masters',
),
(
[plain_es_pod],
es_node_list,
None,
),
(
[plain_es_pod],
{}, # empty list of nodes triggers KeyError
"Failed to query",
),
(
[split_es_pod],
es_node_list,
'does not correspond to any known ES pod',
),
])
def test_check_elasticsearch_node_list(pods, node_list, expect_error):
check = canned_elasticsearch(lambda cmd, args, task_vars: json.dumps(node_list))
errors = check._check_elasticsearch_node_list(pods_by_name(pods), task_vars_config_base)
assert_error(''.join(errors), expect_error)
@pytest.mark.parametrize('pods, health_data, expect_error', [
(
[plain_es_pod],
[{"status": "green"}],
None,
),
(
[plain_es_pod],
[{"no-status": "should bomb"}],
'Could not retrieve cluster health status',
),
(
[plain_es_pod, split_es_pod],
[{"status": "green"}, {"status": "red"}],
'Elasticsearch cluster health status is RED',
),
])
def test_check_elasticsearch_cluster_health(pods, health_data, expect_error):
test_health_data = list(health_data)
check = canned_elasticsearch(lambda cmd, args, task_vars: json.dumps(test_health_data.pop(0)))
errors = check._check_es_cluster_health(pods_by_name(pods), task_vars_config_base)
assert_error(''.join(errors), expect_error)
@pytest.mark.parametrize('disk_data, expect_error', [
(
'df: /elasticsearch/persistent: No such file or directory\n',
'Could not retrieve storage usage',
),
(
'IUse% Use%\n 3% 4%\n',
None,
),
(
'IUse% Use%\n 95% 40%\n',
'Inode percent usage on the storage volume',
),
(
'IUse% Use%\n 3% 94%\n',
'Disk percent usage on the storage volume',
),
])
def test_check_elasticsearch_diskspace(disk_data, expect_error):
check = canned_elasticsearch(lambda cmd, args, task_vars: disk_data)
errors = check._check_elasticsearch_diskspace(pods_by_name([plain_es_pod]), task_vars_config_base)
assert_error(''.join(errors), expect_error)
|
