def __init__(self):
self.docker_util = DockerUtil()
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
instance = check_config['instances'][0]
# kubernetes.yaml was not found
except IOError as ex:
log.error(ex.message)
instance = {}
except Exception:
log.error('Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...')
instance = {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self.host = instance.get("host") or self.docker_util.get_hostname()
self.cadvisor_port = instance.get('port', KubeUtil.DEFAULT_CADVISOR_PORT)
self.kubelet_port = instance.get('kubelet_port', KubeUtil.DEFAULT_KUBELET_PORT)
self.metrics_url = urljoin(
'%s://%s:%d' % (self.method, self.host, self.cadvisor_port), KubeUtil.METRICS_PATH)
self.pods_list_url = urljoin(
'%s://%s:%d' % (self.method, self.host, self.kubelet_port), KubeUtil.PODS_LIST_PATH)
self.kube_health_url = '%s://%s:%d/healthz' % (self.method, self.host, self.kubelet_port)
def get_check_config(self):
"""Read the config from docker_daemon.yaml"""
from util import check_yaml
from utils.checkfiles import get_conf_path
init_config, instances = {}, []
try:
conf_path = get_conf_path(CHECK_NAME)
except IOError as ex:
log.debug(ex.message)
return init_config, {}
if conf_path is not None and os.path.exists(conf_path):
try:
check_config = check_yaml(conf_path)
init_config, instances = check_config.get('init_config', {}), check_config['instances']
init_config = {} if init_config is None else init_config
except Exception:
log.exception('Docker check configuration file is invalid. The docker check and '
'other Docker related components will not work.')
init_config, instances = {}, []
if len(instances) > 0:
instance = instances[0]
else:
instance = {}
log.error('No instance was found in the docker check configuration.'
' Docker related collection will not work.')
return init_config, instance
def __init__(self):
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
instance = check_config['instances'][0]
except IOError as ex:
log.error(ex.message)
instance = {}
except Exception:
log.error(
'Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...')
instance = {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self.host = instance.get("host") or self._get_default_router()
self.cadvisor_port = instance.get('port',
KubeUtil.DEFAULT_CADVISOR_PORT)
self.kubelet_port = instance.get('kubelet_port',
KubeUtil.DEFAULT_KUBELET_PORT)
self.metrics_url = urljoin(
'%s://%s:%d' % (self.method, self.host, self.cadvisor_port),
KubeUtil.METRICS_PATH)
self.pods_list_url = urljoin(
'%s://%s:%d' % (self.method, self.host, self.kubelet_port),
KubeUtil.PODS_LIST_PATH)
self.kube_health_url = '%s://%s:%d/healthz' % (self.method, self.host,
self.kubelet_port)
def __init__(self):
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
try:
check_config = check_yaml(config_file_path)
instance = check_config['instances'][0]
except Exception:
log.error('Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...')
instance = {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self.host = instance.get("host") or self._get_default_router()
self.master_host = instance.get('master_host', self.host)
self.cadvisor_port = instance.get('port', KubeUtil.DEFAULT_CADVISOR_PORT)
self.kubelet_port = instance.get('kubelet_port', KubeUtil.DEFAULT_KUBELET_PORT)
self.master_port = instance.get('master_port', KubeUtil.DEFAULT_MASTER_PORT)
self.metrics_url = urljoin(
'%s://%s:%d' % (self.method, self.host, self.cadvisor_port), KubeUtil.METRICS_PATH)
self.pods_list_url = urljoin(
'%s://%s:%d' % (self.method, self.host, self.kubelet_port), KubeUtil.PODS_LIST_PATH)
self.master_url_nodes = '%s://%s:%d/api/v1/nodes' % (self.method, self.master_host, self.master_port)
self.kube_health_url = '%s://%s:%d/healthz' % (self.method, self.host, self.kubelet_port)
def get_check_config(self):
"""Read the config from docker_daemon.yaml"""
from util import check_yaml
from utils.checkfiles import get_conf_path
init_config, instances = {}, []
try:
conf_path = get_conf_path(CHECK_NAME)
except IOError:
log.debug("Couldn't find docker settings, trying with defaults.")
return init_config, {}
if conf_path is not None and os.path.exists(conf_path):
try:
check_config = check_yaml(conf_path)
init_config, instances = check_config.get(
'init_config', {}), check_config['instances']
init_config = {} if init_config is None else init_config
except Exception:
log.exception(
'Docker check configuration file is invalid. The docker check and '
'other Docker related components will not work.')
init_config, instances = {}, []
if len(instances) > 0:
instance = instances[0]
else:
instance = {}
log.error(
'No instance was found in the docker check configuration.'
' Docker related collection will not work.')
return init_config, instance
def get_check_config(self):
from util import check_yaml
from utils.checkfiles import get_conf_path
init_config, instances = {}, []
try:
conf_path = get_conf_path(CHECK_NAME)
except IOError as ex:
log.debug(ex.message)
return init_config, {}
if conf_path is not None and os.path.exists(conf_path):
try:
check_config = check_yaml(conf_path)
init_config, instances = check_config.get('init_config', {}), check_config['instances']
init_config = {} if init_config is None else init_config
except Exception:
log.exception('Docker check configuration file is invalid. The docker check and '
'other Docker related components will not work.')
init_config, instances = {}, []
if len(instances) > 0:
instance = instances[0]
else:
instance = {}
log.error('No instance was found in the docker check configuration.'
' Docker related collection will not work.')
return init_config, instance
def __init__(self, instance=None):
self.docker_util = DockerUtil()
if instance is None:
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
instance = check_config['instances'][0]
# kubernetes.yaml was not found
except IOError as ex:
log.error(ex.message)
instance = {}
except Exception:
log.error('Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...')
instance = {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self.host = instance.get("host") or self.docker_util.get_hostname()
self._node_ip = self._node_name = None # lazy evaluation
self.host_name = os.environ.get('HOSTNAME')
self.cadvisor_port = instance.get('port', KubeUtil.DEFAULT_CADVISOR_PORT)
self.kubelet_port = instance.get('kubelet_port', KubeUtil.DEFAULT_KUBELET_PORT)
self.kubelet_api_url = '%s://%s:%d' % (self.method, self.host, self.kubelet_port)
self.cadvisor_url = '%s://%s:%d' % (self.method, self.host, self.cadvisor_port)
self.kubernetes_api_url = 'https://%s/api/v1' % (os.environ.get('KUBERNETES_SERVICE_HOST') or self.DEFAULT_MASTER_NAME)
self.metrics_url = urljoin(self.cadvisor_url, KubeUtil.METRICS_PATH)
self.pods_list_url = urljoin(self.kubelet_api_url, KubeUtil.PODS_LIST_PATH)
self.kube_health_url = urljoin(self.kubelet_api_url, 'healthz')
# keep track of the latest k8s event we collected and posted
# default value is 0 but TTL for k8s events is one hour anyways
self.last_event_collection_ts = defaultdict(int)
def __init__(self, instance=None):
self.docker_util = DockerUtil()
if instance is None:
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
instance = check_config['instances'][0]
# kubernetes.yaml was not found
except IOError as ex:
log.error(ex.message)
instance = {}
except Exception:
log.error('Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...')
instance = {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self.host = instance.get("host") or self.docker_util.get_hostname()
self._node_ip = self._node_name = None # lazy evaluation
self.host_name = os.environ.get('HOSTNAME')
self.cadvisor_port = instance.get('port', KubeUtil.DEFAULT_CADVISOR_PORT)
self.kubelet_port = instance.get('kubelet_port', KubeUtil.DEFAULT_KUBELET_PORT)
self.kubelet_api_url = '%s://%s:%d' % (self.method, self.host, self.kubelet_port)
self.cadvisor_url = '%s://%s:%d' % (self.method, self.host, self.cadvisor_port)
self.kubernetes_api_url = 'https://%s/api/v1' % (os.environ.get('KUBERNETES_SERVICE_HOST') or self.DEFAULT_MASTER_NAME)
self.metrics_url = urljoin(self.cadvisor_url, KubeUtil.METRICS_PATH)
self.pods_list_url = urljoin(self.kubelet_api_url, KubeUtil.PODS_LIST_PATH)
self.kube_health_url = urljoin(self.kubelet_api_url, 'healthz')
# keep track of the latest k8s event we collected and posted
# default value is 0 but TTL for k8s events is one hour anyways
self.last_event_collection_ts = defaultdict(int)
def __init__(self, instance=None):
self.docker_util = DockerUtil()
if instance is None:
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
instance = check_config['instances'][0]
# kubernetes.yaml was not found
except IOError as ex:
log.error(ex.message)
instance = {}
except Exception:
log.error(
'Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...'
)
instance = {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self._node_ip = self._node_name = None # lazy evaluation
self.host_name = os.environ.get('HOSTNAME')
self.tls_settings = self._init_tls_settings(instance)
# apiserver
self.kubernetes_api_url = 'https://%s/api/v1' % (
os.environ.get('KUBERNETES_SERVICE_HOST')
or self.DEFAULT_MASTER_NAME)
# kubelet
try:
self.kubelet_api_url = self._locate_kubelet(instance)
if not self.kubelet_api_url:
raise Exception(
"Couldn't find a method to connect to kubelet.")
except Exception as ex:
log.error(
"Kubernetes check exiting, cannot run without access to kubelet."
)
raise ex
self.kubelet_host = self.kubelet_api_url.split(':')[1].lstrip('/')
self.pods_list_url = urljoin(self.kubelet_api_url,
KubeUtil.PODS_LIST_PATH)
self.kube_health_url = urljoin(self.kubelet_api_url,
KubeUtil.KUBELET_HEALTH_PATH)
# cadvisor
self.cadvisor_port = instance.get('port',
KubeUtil.DEFAULT_CADVISOR_PORT)
self.cadvisor_url = '%s://%s:%d' % (self.method, self.kubelet_host,
self.cadvisor_port)
self.metrics_url = urljoin(self.cadvisor_url, KubeUtil.METRICS_PATH)
self.machine_info_url = urljoin(self.cadvisor_url,
KubeUtil.MACHINE_INFO_PATH)
# keep track of the latest k8s event we collected and posted
# default value is 0 but TTL for k8s events is one hour anyways
self.last_event_collection_ts = 0
def detect_is_k8s():
"""
Logic for DockerUtil to detect whether to enable Kubernetes code paths
It check whether we have a KUBERNETES_PORT environment variable (running
in a pod) or a valid kubernetes.yaml conf file
"""
if 'KUBERNETES_PORT' in os.environ:
return True
else:
try:
k8_config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
k8_check_config = check_yaml(k8_config_file_path)
return len(k8_check_config['instances']) > 0
except Exception as err:
log.debug("Error detecting kubernetes: %s" % str(err))
return False
def detect_is_k8s():
"""
Logic for DockerUtil to detect whether to enable Kubernetes code paths
It check whether we have a KUBERNETES_PORT environment variable (running
in a pod) or a valid kubernetes.yaml conf file
"""
if 'KUBERNETES_PORT' in os.environ:
return True
else:
try:
k8_config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
k8_check_config = check_yaml(k8_config_file_path)
return len(k8_check_config['instances']) > 0
except Exception as err:
log.debug("Error detecting kubernetes: %s" % str(err))
return False
def __init__(self, **kwargs):
self.docker_util = DockerUtil()
if 'init_config' in kwargs and 'instance' in kwargs:
init_config = kwargs.get('init_config', {})
instance = kwargs.get('instance', {})
else:
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
init_config = check_config['init_config'] or {}
instance = check_config['instances'][0] or {}
# kubernetes.yaml was not found
except IOError as ex:
log.error(ex.message)
init_config, instance = {}, {}
except Exception:
log.error(
'Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...'
)
init_config, instance = {}, {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self._node_ip = self._node_name = None # lazy evaluation
self.host_name = os.environ.get('HOSTNAME')
self.pod_name = os.environ.get('KUBERNETES_POD_NAME') or self.host_name
self.tls_settings = self._init_tls_settings(instance)
# apiserver
if 'api_server_url' in instance:
self.kubernetes_api_root_url = instance.get('api_server_url')
else:
master_host = os.environ.get(
'KUBERNETES_SERVICE_HOST') or self.DEFAULT_MASTER_NAME
master_port = os.environ.get(
'KUBERNETES_SERVICE_PORT') or self.DEFAULT_MASTER_PORT
self.kubernetes_api_root_url = 'https://%s:%s' % (master_host,
master_port)
self.kubernetes_api_url = '%s/api/v1' % self.kubernetes_api_root_url
# Service mapping helper class
self._service_mapper = PodServiceMapper(self)
from config import _is_affirmative
self.collect_service_tag = _is_affirmative(
instance.get('collect_service_tags',
KubeUtil.DEFAULT_COLLECT_SERVICE_TAG))
# leader status triggers event collection
self.is_leader = False
self.leader_elector = None
self.leader_lease_duration = instance.get('leader_lease_duration')
# kubelet
# If kubelet_api_url is None, init_kubelet didn't succeed yet.
self.init_success = False
self.kubelet_api_url = None
self.init_retry_interval = init_config.get('init_retry_interval',
DEFAULT_RETRY_INTERVAL)
self.last_init_retry = None
self.left_init_retries = init_config.get('init_retries',
DEFAULT_INIT_RETRIES) + 1
self.init_kubelet(instance)
self.kube_label_prefix = instance.get('label_to_tag_prefix',
KubeUtil.DEFAULT_LABEL_PREFIX)
self.kube_node_labels = instance.get('node_labels_to_host_tags', {})
# keep track of the latest k8s event we collected and posted
# default value is 0 but TTL for k8s events is one hour anyways
self.last_event_collection_ts = 0
def __init__(self, instance=None):
self.docker_util = DockerUtil()
if instance is None:
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
instance = check_config['instances'][0]
# kubernetes.yaml was not found
except IOError as ex:
log.error(ex.message)
instance = {}
except Exception:
log.error(
'Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...'
)
instance = {}
self.timeoutSeconds = instance.get("timeoutSeconds",
KubeUtil.DEFAULT_TIMEOUT_SECONDS)
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self.host = instance.get("host") or self.docker_util.get_hostname()
self._node_ip = self._node_name = None # lazy evaluation
self.host_name = os.environ.get('HOSTNAME')
self.cadvisor_port = instance.get('port',
KubeUtil.DEFAULT_CADVISOR_PORT)
self.kubelet_port = instance.get('kubelet_port',
KubeUtil.DEFAULT_KUBELET_PORT)
self.master_method = instance.get('master_method',
KubeUtil.DEFAULT_MASTER_METHOD)
self.master_name = instance.get('master_name',
KubeUtil.DEFAULT_MASTER_NAME)
self.master_port = instance.get('master_port',
KubeUtil.DEFAULT_MASTER_PORT)
self.use_kube_auth = instance.get('use_kube_auth',
KubeUtil.DEFAULT_USE_KUBE_AUTH)
self.kubelet_api_url = '%s://%s:%d' % (self.method, self.host,
self.kubelet_port)
self.cadvisor_url = '%s://%s:%d' % (self.method, self.host,
self.cadvisor_port)
self.master_host = os.environ.get('KUBERNETES_SERVICE_HOST') or (
'%s:%d' % (self.master_name, self.master_port))
self.kubernetes_api_url = '%s://%s/api/v1/' % (self.master_method,
self.master_host)
self.kubernetes_api_extension_url = '%s://%s/apis/extensions/v1beta1/' % (
self.master_method, self.master_host)
self.metrics_url = urljoin(self.cadvisor_url, KubeUtil.METRICS_PATH)
self.machine_info_url = urljoin(self.cadvisor_url,
KubeUtil.MACHINE_INFO_PATH)
self.nodes_list_url = urljoin(self.kubernetes_api_url,
KubeUtil.NODES_LIST_PATH)
self.services_list_url = urljoin(self.kubernetes_api_url,
KubeUtil.SERVICES_LIST_PATH)
self.endpoints_list_url = urljoin(self.kubernetes_api_url,
KubeUtil.ENDPOINTS_LIST_PATH)
self.pods_list_url = urljoin(self.kubernetes_api_url,
KubeUtil.PODS_LIST_PATH)
self.deployments_list_url = urljoin(self.kubernetes_api_extension_url,
KubeUtil.DEPLOYMENTS_LIST_PATH)
self.kube_health_url = urljoin(self.kubelet_api_url, 'healthz')
# keep track of the latest k8s event we collected and posted
# default value is 0 but TTL for k8s events is one hour anyways
self.last_event_collection_ts = defaultdict(int)
def __init__(self, **kwargs):
self.docker_util = DockerUtil()
if 'init_config' in kwargs and 'instance' in kwargs:
init_config = kwargs.get('init_config', {})
instance = kwargs.get('instance', {})
else:
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
init_config = check_config['init_config'] or {}
instance = check_config['instances'][0] or {}
# kubernetes.yaml was not found
except IOError as ex:
log.error(ex.message)
init_config, instance = {}, {}
except Exception:
log.error('Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...')
init_config, instance = {}, {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self._node_ip = self._node_name = None # lazy evaluation
self.host_name = os.environ.get('HOSTNAME')
self.pod_name = os.environ.get('KUBERNETES_POD_NAME') or self.host_name
self.tls_settings = self._init_tls_settings(instance)
# apiserver
if 'api_server_url' in instance:
self.kubernetes_api_root_url = instance.get('api_server_url')
else:
master_host = os.environ.get('KUBERNETES_SERVICE_HOST') or self.DEFAULT_MASTER_NAME
master_port = os.environ.get('KUBERNETES_SERVICE_PORT') or self.DEFAULT_MASTER_PORT
self.kubernetes_api_root_url = 'https://%s:%s' % (master_host, master_port)
self.kubernetes_api_url = '%s/api/v1' % self.kubernetes_api_root_url
# Service mapping helper class
self._service_mapper = PodServiceMapper(self)
from config import _is_affirmative
self.collect_service_tag = _is_affirmative(instance.get('collect_service_tags', KubeUtil.DEFAULT_COLLECT_SERVICE_TAG))
# leader status triggers event collection
self.is_leader = False
self.leader_elector = None
self.leader_lease_duration = instance.get('leader_lease_duration')
# kubelet
# If kubelet_api_url is None, init_kubelet didn't succeed yet.
self.init_success = False
self.kubelet_api_url = None
self.init_retry_interval = init_config.get('init_retry_interval', DEFAULT_RETRY_INTERVAL)
self.last_init_retry = None
self.left_init_retries = init_config.get('init_retries', DEFAULT_INIT_RETRIES) + 1
self.init_kubelet(instance)
self.kube_label_prefix = instance.get('label_to_tag_prefix', KubeUtil.DEFAULT_LABEL_PREFIX)
self.kube_node_labels = instance.get('node_labels_to_host_tags', {})
# keep track of the latest k8s event we collected and posted
# default value is 0 but TTL for k8s events is one hour anyways
self.last_event_collection_ts = 0
def __init__(self, instance=None):
self.docker_util = DockerUtil()
if instance is None:
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
instance = check_config['instances'][0]
# kubernetes.yaml was not found
except IOError as ex:
log.error(ex.message)
instance = {}
except Exception:
log.error('Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...')
instance = {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self._node_ip = self._node_name = None # lazy evaluation
self.host_name = os.environ.get('HOSTNAME')
self.tls_settings = self._init_tls_settings(instance)
# apiserver
if 'api_server_url' in instance:
self.kubernetes_api_root_url = instance.get('api_server_url')
else:
master_host = os.environ.get('KUBERNETES_SERVICE_HOST') or self.DEFAULT_MASTER_NAME
master_port = os.environ.get('KUBERNETES_SERVICE_PORT') or self.DEFAULT_MASTER_PORT
self.kubernetes_api_root_url = 'https://%s:%s' % (master_host, master_port)
self.kubernetes_api_url = '%s/api/v1' % self.kubernetes_api_root_url
# leader status triggers event collection
self.is_leader = False
self.leader_elector = None
self.leader_lease_duration = instance.get('lease_duration')
# kubelet
try:
self.kubelet_api_url = self._locate_kubelet(instance)
if not self.kubelet_api_url:
raise Exception("Couldn't find a method to connect to kubelet.")
except Exception as ex:
log.error("Kubernetes check exiting, cannot run without access to kubelet.")
raise ex
# Service mapping helper class
self._service_mapper = PodServiceMapper(self)
self.kubelet_host = self.kubelet_api_url.split(':')[1].lstrip('/')
self.pods_list_url = urljoin(self.kubelet_api_url, KubeUtil.PODS_LIST_PATH)
self.kube_health_url = urljoin(self.kubelet_api_url, KubeUtil.KUBELET_HEALTH_PATH)
self.kube_label_prefix = instance.get('label_to_tag_prefix', KubeUtil.DEFAULT_LABEL_PREFIX)
self.kube_node_labels = instance.get('node_labels_to_host_tags', {})
# cadvisor
self.cadvisor_port = instance.get('port', KubeUtil.DEFAULT_CADVISOR_PORT)
self.cadvisor_url = '%s://%s:%d' % (self.method, self.kubelet_host, self.cadvisor_port)
self.metrics_url = urljoin(self.cadvisor_url, KubeUtil.METRICS_PATH)
self.machine_info_url = urljoin(self.cadvisor_url, KubeUtil.MACHINE_INFO_PATH)
try:
self.self_namespace = self.get_self_namespace()
except Exception:
log.warning("Failed to get the agent pod namespace, defaulting to default.")
self.self_namespace = DEFAULT_NAMESPACE
from config import _is_affirmative
self.collect_service_tag = _is_affirmative(instance.get('collect_service_tags', KubeUtil.DEFAULT_COLLECT_SERVICE_TAG))
# keep track of the latest k8s event we collected and posted
# default value is 0 but TTL for k8s events is one hour anyways
self.last_event_collection_ts = 0
def __init__(self, instance=None):
self.docker_util = DockerUtil()
if instance is None:
try:
config_file_path = get_conf_path(KUBERNETES_CHECK_NAME)
check_config = check_yaml(config_file_path)
instance = check_config['instances'][0]
# kubernetes.yaml was not found
except IOError as ex:
log.error(ex.message)
instance = {}
except Exception:
log.error('Kubernetes configuration file is invalid. '
'Trying connecting to kubelet with default settings anyway...')
instance = {}
self.method = instance.get('method', KubeUtil.DEFAULT_METHOD)
self._node_ip = self._node_name = None # lazy evaluation
self.host_name = os.environ.get('HOSTNAME')
self.tls_settings = self._init_tls_settings(instance)
# apiserver
if 'api_server_url' in instance:
self.kubernetes_api_root_url = instance.get('api_server_url')
else:
master_host = os.environ.get('KUBERNETES_SERVICE_HOST') or self.DEFAULT_MASTER_NAME
master_port = os.environ.get('KUBERNETES_SERVICE_PORT') or self.DEFAULT_MASTER_PORT
self.kubernetes_api_root_url = 'https://%s:%s' % (master_host, master_port)
self.kubernetes_api_url = '%s/api/v1' % self.kubernetes_api_root_url
# kubelet
try:
self.kubelet_api_url = self._locate_kubelet(instance)
if not self.kubelet_api_url:
raise Exception("Couldn't find a method to connect to kubelet.")
except Exception as ex:
log.error("Kubernetes check exiting, cannot run without access to kubelet.")
raise ex
# Service mapping helper class
self._service_mapper = PodServiceMapper(self)
self.kubelet_host = self.kubelet_api_url.split(':')[1].lstrip('/')
self.pods_list_url = urljoin(self.kubelet_api_url, KubeUtil.PODS_LIST_PATH)
self.kube_health_url = urljoin(self.kubelet_api_url, KubeUtil.KUBELET_HEALTH_PATH)
self.kube_label_prefix = instance.get('label_to_tag_prefix', KubeUtil.DEFAULT_LABEL_PREFIX)
self.kube_node_labels = instance.get('node_labels_to_host_tags', {})
# cadvisor
self.cadvisor_port = instance.get('port', KubeUtil.DEFAULT_CADVISOR_PORT)
self.cadvisor_url = '%s://%s:%d' % (self.method, self.kubelet_host, self.cadvisor_port)
self.metrics_url = urljoin(self.cadvisor_url, KubeUtil.METRICS_PATH)
self.machine_info_url = urljoin(self.cadvisor_url, KubeUtil.MACHINE_INFO_PATH)
from config import _is_affirmative
self.collect_service_tag = _is_affirmative(instance.get('collect_service_tags', KubeUtil.DEFAULT_COLLECT_SERVICE_TAG))
# keep track of the latest k8s event we collected and posted
# default value is 0 but TTL for k8s events is one hour anyways
self.last_event_collection_ts = 0
