def validate_k8s_system(k8s_conf):
"""
Validation of the configured kubernetes system
:param k8s_conf: the k8s configuration used to deploy the cluster
:raises Exception
"""
logger.info('Validate K8s System')
core_client = k8s_core_client(k8s_conf)
pod_items = __get_pods_by_namespace(core_client, 'kube-system')
pod_status = __get_pod_name_statuses(pod_items)
for pod_name, pod_running in pod_status.items():
if not pod_running:
raise ClusterDeploymentException(
'Pod [{}] is not running as expected'.format(pod_name))
pod_services = __get_pod_service_list(pod_items)
logger.debug('kube-system pod_services - %s', pod_services)
if 'kubernetes-dashboard' not in pod_services:
raise ClusterDeploymentException(
'kubernetes-dashboard service not found')
if 'coredns' not in pod_services:
raise ClusterDeploymentException('coredns service not found')
if 'efk' not in pod_services:
raise ClusterDeploymentException('efk service not found')
for name, ip, node_type in config_utils.get_master_nodes_ip_name_type(
k8s_conf):
if 'kube-apiserver-{}'.format(name) not in pod_services:
raise ClusterDeploymentException(
'kube-apiserver-%s service not found'.format(name))
if 'kube-scheduler-{}'.format(name) not in pod_services:
raise ClusterDeploymentException(
'kube-scheduler-%s service not found', name)
if config_utils.is_metrics_server_enabled(k8s_conf):
if 'metrics-server' not in pod_services:
raise ClusterDeploymentException(
'metrics-server service not found')
logger.debug('pod_services - %s', pod_services)
if config_utils.is_helm_enabled(k8s_conf):
if 'tiller' not in pod_services:
raise ClusterDeploymentException('tiller service not found')
def __kubespray(k8s_conf):
pb_vars = {
'KUBESPRAY_PATH': config_utils.get_kubespray_dir(k8s_conf),
'KUBESPRAY_CLUSTER_CONF': consts.KUBESPRAY_CLUSTER_CONF,
'KUBESPRAY_ALL_CONF': consts.KUBESPRAY_ALL_CONF,
'PROJ_ARTIFACT_DIR': config_utils.get_project_artifact_dir(k8s_conf),
'kubespray_url': config_utils.get_kubespray_url(k8s_conf),
'kubespray_branch': config_utils.get_kubespray_branch(k8s_conf),
}
pb_vars.update(config_utils.get_proxy_dict(k8s_conf))
ansible_utils.apply_playbook(consts.K8_CLONE_CODE, variables=pb_vars)
# Setup HA load balancer
lb_ips = config_utils.get_ha_lb_ips(k8s_conf)
lb_ip = None
ha_enabled = len(lb_ips) > 0
if ha_enabled:
__launch_ha_loadbalancer(k8s_conf)
lb_ip = lb_ips[0]
logger.info('*** EXECUTING INSTALLATION OF KUBERNETES CLUSTER ***')
hosts_tuple = config_utils.get_nodes_ip_name_type(k8s_conf)
all_hosts = list()
all_masters = list()
all_minions = list()
for name, ip, node_type in hosts_tuple:
all_hosts.append((name, ip))
if node_type == consts.NODE_TYPE_MASTER:
all_masters.append(name)
if node_type == consts.NODE_TYPE_MINION:
all_minions.append(name)
kubespray_proxy_val = ''
kubespray_proxy_url = config_utils.get_kubespray_proxy_dict(
k8s_conf)['http_proxy']
if kubespray_proxy_url and len(kubespray_proxy_url) > 10:
parsed_url = urlparse(kubespray_proxy_url)
kubespray_proxy_val = "{}:{}".format(parsed_url.hostname,
parsed_url.port)
pb_vars = {
# For inventory.cfg
'PROJ_ARTIFACT_DIR':
config_utils.get_project_artifact_dir(k8s_conf),
'KUBESPRAY_INV_J2':
consts.KUBESPRAY_INV_J2,
'KUBESPRAY_GROUP_ALL_J2':
consts.KUBESPRAY_GROUP_ALL_J2,
'all_hosts':
all_hosts,
'all_masters':
all_masters,
'all_minions':
all_minions,
# For k8s-cluster.yml
'service_subnet':
config_utils.get_service_subnet(k8s_conf),
'pod_subnet':
config_utils.get_pod_subnet(k8s_conf),
'networking_plugin':
config_utils.get_networking_plugin(k8s_conf),
'kube_version':
config_utils.get_version(k8s_conf),
'ha_enabled':
ha_enabled,
'KUBESPRAY_PATH':
config_utils.get_kubespray_dir(k8s_conf),
'KUBESPRAY_ALL_CONF':
consts.KUBESPRAY_ALL_CONF,
'KUBERNETES_PATH':
consts.NODE_K8S_PATH,
'lb_ips':
lb_ips,
'lb_ip':
lb_ip,
# For addons.yml
'helm_enabled':
config_utils.is_helm_enabled(k8s_conf),
'metrics_server_enabled':
config_utils.is_metrics_server_enabled(k8s_conf),
"log_level":
config_utils.get_log_level(k8s_conf),
"log_file_path":
consts.LOG_FILE_PATH,
"logging_port":
config_utils.get_logging_port(k8s_conf),
'docker_version':
config_utils.get_docker_version(k8s_conf),
'kubespray_http_proxy':
config_utils.get_kubespray_proxy_dict(k8s_conf)['http_proxy'],
'kubespray_https_proxy':
config_utils.get_kubespray_proxy_dict(k8s_conf)['https_proxy'],
'kubespray_proxy_val':
kubespray_proxy_val,
}
ansible_utils.apply_playbook(consts.KUBERNETES_SET_LAUNCHER,
variables=pb_vars)
cluster_pb_vars = ANSIBLE_VERSION_DICT
cluster_pb_vars.update(DOCKER_VARS_DICT)
if len(config_utils.get_ha_lb_ips(k8s_conf)) > 0:
cluster_pb_vars[
'kube_apiserver_access_address'] = config_utils.get_ha_lb_ips(
k8s_conf)[0]
kubespray_pb = "{}/{}".format(config_utils.get_kubespray_dir(k8s_conf),
consts.KUBESPRAY_CLUSTER_CREATE_PB)
inv_filename = config_utils.get_kubespray_inv_file(k8s_conf)
logger.info('Calling Kubespray with inventory %s', inv_filename)
ansible_utils.apply_playbook(
kubespray_pb,
host_user=config_utils.get_node_user(k8s_conf),
variables=cluster_pb_vars,
inventory_file=inv_filename,
become_user='******')