def test_get_kube_container_name():
tags = CadvisorPrometheusScraper._get_kube_container_name([
Label("container_name", value="datadog-agent"),
Label(
"id",
value="/kubepods/burstable/"
"podc2319815-10d0-11e8-bd5a-42010af00137/"
"a335589109ce5506aa69ba7481fc3e6c943abd23c5277016c92dac15d0f40479"
),
Label(
"image",
value=
"datadog/agent-dev@sha256:894fb66f89be0332a47388d7219ab8b365520ff0e3bbf597bd0a378b19efa7ee"
),
Label(
"name",
value=
"k8s_datadog-agent_datadog-agent-jbm2k_default_c2319815-10d0-11e8-bd5a-42010af00137_0"
),
Label("namespace", value="default"),
Label("pod_name", value="datadog-agent-jbm2k"),
])
assert tags == ["kube_container_name:datadog-agent"]
tags = CadvisorPrometheusScraper._get_kube_container_name([])
assert tags == []
def test_is_pod_metric():
false_metrics = [
MockMetric('foo', []),
MockMetric('bar', [Label(name='container_name', value='ctr0')]),
MockMetric('foobar', [
Label(name='container_name', value='ctr0'),
Label(name='id', value='deadbeef')
]),
]
true_metrics = [
MockMetric('foo', [Label(name='container_name', value='POD')]),
MockMetric('bar', [
Label(
name='id',
value=
'/kubepods/burstable/pod531c80d9-9fc4-11e7-ba8b-42010af002bb')
]),
MockMetric('foobar', [
Label(name='container_name', value='POD'),
Label(
name='id',
value=
'/kubepods/burstable/pod531c80d9-9fc4-11e7-ba8b-42010af002bb')
]),
]
for metric in false_metrics:
assert CadvisorPrometheusScraper._is_pod_metric(metric.label) is False
for metric in true_metrics:
assert CadvisorPrometheusScraper._is_pod_metric(metric.label) is True
def cadvisor_scraper(check):
scraper = CadvisorPrometheusScraper(check)
pod_list = json.loads(mock_from_file('podlist_containerd.json'))
scraper.pod_list = pod_list
scraper.pod_list_utils = PodListUtils(pod_list)
return scraper
def test_get_container_label():
labels = [
Label("container_name", value="POD"),
Label("id", value="/kubepods/burstable/pod531c80d9-9fc4-11e7-ba8b-42010af002bb"),
]
assert CadvisorPrometheusScraper._get_container_label(labels, "container_name") == "POD"
assert CadvisorPrometheusScraper._get_container_label([], "not-in") is None
def test_get_pod_uid():
labels = [
Label("container_name", value="POD"),
Label("id",
value="/kubepods/burstable/"
"pod260c2b1d43b094af6d6b4ccba082c2db/"
"0bce0ef7e6cd073e8f9cec3027e1c0057ce1baddce98113d742b816726a95ab1"),
]
assert CadvisorPrometheusScraper._get_pod_uid(labels) == "260c2b1d43b094af6d6b4ccba082c2db"
assert CadvisorPrometheusScraper._get_pod_uid([]) is None
def test_get_container_id():
labels = [
Label("container_name", value="datadog-agent"),
Label("id",
value="/kubepods/burstable/"
"podc2319815-10d0-11e8-bd5a-42010af00137/"
"a335589109ce5506aa69ba7481fc3e6c943abd23c5277016c92dac15d0f40479"),
]
container_id = CadvisorPrometheusScraper._get_container_id(labels)
assert container_id == "a335589109ce5506aa69ba7481fc3e6c943abd23c5277016c92dac15d0f40479"
assert CadvisorPrometheusScraper._get_container_id([]) is None
def test_cadvisor_default_options():
check = KubeletCheck('kubelet', None, {}, [{}])
scraper = CadvisorPrometheusScraper(check)
assert scraper.NAMESPACE == 'kubernetes'
assert scraper.fs_usage_bytes == {}
assert scraper.mem_usage_bytes == {}
assert scraper.metrics_mapper == {}
def test_is_container_metric():
false_metrics = [
MockMetric('foo', []),
MockMetric(
'bar',
[
Label(name='container_name', value='POD'), # POD --> False
Label(name='namespace', value='default'),
Label(name='pod_name', value='pod0'),
Label(name='name', value='foo'),
Label(name='image', value='foo'),
Label(name='id', value='deadbeef'),
]
),
MockMetric( # missing container_name
'foobar',
[
Label(name='namespace', value='default'),
Label(name='pod_name', value='pod0'),
Label(name='name', value='foo'),
Label(name='image', value='foo'),
Label(name='id', value='deadbeef'),
]
),
]
for metric in false_metrics:
assert CadvisorPrometheusScraper._is_container_metric(metric.label) is False
true_metric = MockMetric(
'foo',
[
Label(name='container_name', value='ctr0'),
Label(name='namespace', value='default'),
Label(name='pod_name', value='pod0'),
Label(name='name', value='foo'),
Label(name='image', value='foo'),
Label(name='id', value='deadbeef'),
]
)
assert CadvisorPrometheusScraper._is_container_metric(true_metric.label) is True
def cadvisor_scraper(check):
scraper = CadvisorPrometheusScraper(check)
scraper.pod_list = json.loads(mock_from_file('pods.json'))
return scraper