#!/usr/bin/python
-from kubernetes import client, config
-import time, argparse, logging, sys, os
+import getopt
+import logging
+import os
+import sys
+import time
-#extract env variables.
+from kubernetes import client
+
+# extract env variables.
namespace = os.environ['NAMESPACE']
cert = os.environ['CERT']
host = os.environ['KUBERNETES_SERVICE_HOST']
with open(token_path, 'r') as token_file:
token = token_file.read().replace('\n', '')
-client.configuration.host = "https://" + host
-client.configuration.ssl_ca_cert = cert
-client.configuration.api_key['authorization'] = token
-client.configuration.api_key_prefix['authorization'] = 'Bearer'
-
-#setup logging
+# setup logging
log = logging.getLogger(__name__)
handler = logging.StreamHandler(sys.stdout)
handler.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s'))
log.addHandler(handler)
log.setLevel(logging.INFO)
+configuration = client.Configuration()
+configuration.host = "https://" + host
+configuration.ssl_ca_cert = cert
+configuration.api_key['authorization'] = token
+configuration.api_key_prefix['authorization'] = 'Bearer'
+coreV1Api = client.CoreV1Api(client.ApiClient(configuration))
+api_instance=client.ExtensionsV1beta1Api(client.ApiClient(configuration))
+api = client.AppsV1beta1Api(client.ApiClient(configuration))
+batchV1Api = client.BatchV1Api(client.ApiClient(configuration))
-def is_ready(container_name):
- log.info( "Checking if " + container_name + " is ready")
- # config.load_kube_config() # for local testing
- # namespace='onap-sdc' # for local testing
- v1 = client.CoreV1Api()
+def is_job_complete(job_name):
+ complete = False
+ log.info("Checking if " + job_name + " is complete")
+ response = ""
+ try:
+ response = batchV1Api.read_namespaced_job_status(job_name, namespace)
+ if response.status.succeeded == 1:
+ job_status_type = response.status.conditions[0].type
+ if job_status_type == "Complete":
+ complete = True
+ log.info(job_name + " is complete")
+ else:
+ log.info(job_name + " is not complete")
+ else:
+ log.info(job_name + " has not succeeded yet")
+ return complete
+ except Exception as e:
+ log.error("Exception when calling read_namespaced_job_status: %s\n" % e)
- ready = False
+def wait_for_statefulset_complete(statefulset_name):
+ try:
+ response = api.read_namespaced_stateful_set(statefulset_name, namespace)
+ s = response.status
+ if ( s.updated_replicas == response.spec.replicas and
+ s.replicas == response.spec.replicas and
+ s.ready_replicas == response.spec.replicas and
+ s.current_replicas == response.spec.replicas and
+ s.observed_generation == response.metadata.generation):
+ log.info("Statefulset " + statefulset_name + " is ready")
+ return True
+ else:
+ log.info("Statefulset " + statefulset_name + " is not ready")
+ return False
+ except Exception as e:
+ log.error("Exception when waiting for Statefulset status: %s\n" % e)
+def wait_for_deployment_complete(deployment_name):
try:
- response = v1.list_namespaced_pod(namespace=namespace, watch=False)
+ response = api.read_namespaced_deployment(deployment_name, namespace)
+ s = response.status
+ if ( s.unavailable_replicas == None and
+ s.updated_replicas == response.spec.replicas and
+ s.replicas == response.spec.replicas and
+ s.ready_replicas == response.spec.replicas and
+ s.observed_generation == response.metadata.generation):
+ log.info("Deployment " + deployment_name + " is ready")
+ return True
+ else:
+ log.info("Deployment " + deployment_name + " is not ready")
+ return False
+ except Exception as e:
+ log.error("Exception when waiting for deployment status: %s\n" % e)
+
+def is_ready(container_name):
+ ready = False
+ log.info("Checking if " + container_name + " is ready")
+ try:
+ response = coreV1Api.list_namespaced_pod(namespace=namespace, watch=False)
for i in response.items:
# container_statuses can be None, which is non-iterable.
if i.status.container_statuses is None:
- continue
+ continue
for s in i.status.container_statuses:
if s.name == container_name:
- ready = s.ready
- if not ready:
- log.info( container_name + " is not ready.")
- else:
- log.info( container_name + " is ready!")
+ if i.metadata.owner_references[0].kind == "StatefulSet":
+ ready = wait_for_statefulset_complete(i.metadata.owner_references[0].name)
+ elif i.metadata.owner_references[0].kind == "ReplicaSet":
+ api_response = api_instance.read_namespaced_replica_set_status(i.metadata.owner_references[0].name, namespace)
+ ready = wait_for_deployment_complete(api_response.metadata.owner_references[0].name)
+ elif i.metadata.owner_references[0].kind == "Job":
+ ready = is_job_complete(i.metadata.owner_references[0].name)
+
+ return ready
+
else:
continue
return ready
except Exception as e:
log.error("Exception when calling list_namespaced_pod: %s\n" % e)
+DEF_TIMEOUT = 10
+DESCRIPTION = "Kubernetes container readiness check utility"
+USAGE = "Usage: ready.py [-t <timeout>] -c <container_name> [-c <container_name> ...]\n" \
+ "where\n" \
+ "<timeout> - wait for container readiness timeout in min, default is " + str(DEF_TIMEOUT) + "\n" \
+ "<container_name> - name of the container to wait for\n"
-def main(args):
+def main(argv):
# args are a list of container names
- for container_name in args:
- # 5 min, TODO: make configurable
- timeout = time.time() + 60 * 10
+ container_names = []
+ timeout = DEF_TIMEOUT
+ try:
+ opts, args = getopt.getopt(argv, "hc:t:", ["container-name=", "timeout=", "help"])
+ for opt, arg in opts:
+ if opt in ("-h", "--help"):
+ print("%s\n\n%s" % (DESCRIPTION, USAGE))
+ sys.exit()
+ elif opt in ("-c", "--container-name"):
+ container_names.append(arg)
+ elif opt in ("-t", "--timeout"):
+ timeout = float(arg)
+ except (getopt.GetoptError, ValueError) as e:
+ print("Error parsing input parameters: %s\n" % e)
+ print(USAGE)
+ sys.exit(2)
+ if container_names.__len__() == 0:
+ print("Missing required input parameter(s)\n")
+ print(USAGE)
+ sys.exit(2)
+
+ for container_name in container_names:
+ timeout = time.time() + timeout * 60
while True:
ready = is_ready(container_name)
if ready is True:
break
elif time.time() > timeout:
- log.warning( "timed out waiting for '" + container_name + "' to be ready")
+ log.warning("timed out waiting for '" + container_name + "' to be ready")
exit(1)
else:
time.sleep(5)
-
if __name__ == "__main__":
- parser = argparse.ArgumentParser(description='Process some names.')
- parser.add_argument('--container-name', action='append', required=True, help='A container name')
- args = parser.parse_args()
- arg_dict = vars(args)
+ main(sys.argv[1:])
- for arg in arg_dict.itervalues():
- main(arg)
Code Review / oom.git / blobdiff