PEP8 for ready.py and job_complete.py script

Refactor code to adapt the PEP8 rules:
- line width
- empty line after method
- checking None in the condition

Change-Id: I6c60959ce77618ebf7f3cab103ba9644af51a92f
Issue-ID: OOM-1854
Signed-off-by: Krystian Kedron <k.kedron@partner.samsung.com>

2 files changed, 58 insertions, 23 deletions

diff --git a/kubernetes/readiness/docker/init/job_complete.py b/kubernetes/readiness/docker/init/job_complete.py
index b20cb5adec..a9570c5951 100644
--- a/kubernetes/readiness/docker/init/job_complete.py
+++ b/kubernetes/readiness/docker/init/job_complete.py
@@ -20,7 +20,8 @@ with open(token_path, 'r') as token_file:
 # setup logging
 log = logging.getLogger(__name__)
 handler = logging.StreamHandler(sys.stdout)
-handler.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s'))
+formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
+handler.setFormatter(formatter)
 handler.setLevel(logging.INFO)
 log.addHandler(handler)
 log.setLevel(logging.INFO)
@@ -54,17 +55,22 @@ def is_job_complete(job_name):
 
 DEF_TIMEOUT = 10
 DESCRIPTION = "Kubernetes container job complete check utility"
-USAGE = "Usage: job_complete.py [-t <timeout>] -j <job_name> [-j <job_name> ...]\n" \
+USAGE = "Usage: job_complete.py [-t <timeout>] -j <job_name> " \
+        "[-j <job_name> ...]\n" \
         "where\n" \
-        "<timeout> - wait for container job complete timeout in min, default is " + str(DEF_TIMEOUT) + "\n" \
+        "<timeout> - wait for container job complete timeout in min, " \
+        "default is " + str(DEF_TIMEOUT) + "\n" \
         "<job_name> - name of the job to wait for\n"
 
+
 def main(argv):
     # args are a list of job names
     job_names = []
     timeout = DEF_TIMEOUT
     try:
-        opts, args = getopt.getopt(argv, "hj:t:", ["job-name=", "timeout=", "help"])
+        opts, args = getopt.getopt(argv, "hj:t:", ["job-name=",
+                                                   "timeout=",
+                                                   "help"])
         for opt, arg in opts:
             if opt in ("-h", "--help"):
                 print("%s\n\n%s" % (DESCRIPTION, USAGE))
@@ -89,11 +95,14 @@ def main(argv):
             if complete is True:
                 break
             elif time.time() > timeout:
-                log.warning("timed out waiting for '" + job_name + "' to be completed")
+                log.warning("timed out waiting for '" + job_name +
+                            "' to be completed")
                 exit(1)
             else:
-                # spread in time potentially parallel execution in multiple containers
+                # spread in time potentially parallel execution in multiple
+                # containers
                 time.sleep(random.randint(5, 11))
 
+
 if __name__ == "__main__":
-    main(sys.argv[1:])
\ No newline at end of file
+    main(sys.argv[1:])
diff --git a/kubernetes/readiness/docker/init/ready.py b/kubernetes/readiness/docker/init/ready.py
index 0e133eab01..db7105a18d 100644
--- a/kubernetes/readiness/docker/init/ready.py
+++ b/kubernetes/readiness/docker/init/ready.py
@@ -20,7 +20,8 @@ with open(token_path, 'r') as token_file:
 # setup logging
 log = logging.getLogger(__name__)
 handler = logging.StreamHandler(sys.stdout)
-handler.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s'))
+formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
+handler.setFormatter(formatter)
 handler.setLevel(logging.INFO)
 log.addHandler(handler)
 log.setLevel(logging.INFO)
@@ -31,14 +32,14 @@ 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_instance = client.ExtensionsV1beta1Api(client.ApiClient(configuration))
 api = client.AppsV1beta1Api(client.ApiClient(configuration))
 batchV1Api = client.BatchV1Api(client.ApiClient(configuration))
 
+
 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:
@@ -54,11 +55,12 @@ def is_job_complete(job_name):
     except Exception as e:
         log.error("Exception when calling read_namespaced_job_status: %s\n" % e)
 
+
 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
+        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
@@ -71,11 +73,12 @@ def wait_for_statefulset_complete(statefulset_name):
     except Exception as e:
         log.error("Exception when waiting for Statefulset status: %s\n" % e)
 
+
 def wait_for_deployment_complete(deployment_name):
     try:
         response = api.read_namespaced_deployment(deployment_name, namespace)
         s = response.status
-        if ( s.unavailable_replicas == None and
+        if (s.unavailable_replicas is None and
                 s.updated_replicas == response.spec.replicas and
                 s.replicas == response.spec.replicas and
                 s.ready_replicas == response.spec.replicas and
@@ -88,24 +91,27 @@ def wait_for_deployment_complete(deployment_name):
     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)
+        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
             for s in i.status.container_statuses:
                 if s.name == container_name:
-                    if i.metadata.owner_references[0].kind  == "StatefulSet":
-                        ready = wait_for_statefulset_complete(i.metadata.owner_references[0].name)
+                    name = read_name(i)
+                    if i.metadata.owner_references[0].kind == "StatefulSet":
+                        ready = wait_for_statefulset_complete(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)
+                        deployment_name = get_deployment_name(name)
+                        ready = wait_for_deployment_complete(deployment_name)
                     elif i.metadata.owner_references[0].kind == "Job":
-                        ready = is_job_complete(i.metadata.owner_references[0].name)
+                        ready = is_job_complete(name)
 
                     return ready
 
@@ -115,19 +121,36 @@ def is_ready(container_name):
     except Exception as e:
         log.error("Exception when calling list_namespaced_pod: %s\n" % e)
 
+
+def read_name(item):
+    return item.metadata.owner_reference[0].name
+
+
+def get_deployment_name(replicaset):
+    api_response = api_instance.read_namespaced_replica_set_status(replicaset,
+                                                                   namespace)
+    deployment_name = read_name(api_response)
+    return deployment_name
+
+
 DEF_TIMEOUT = 10
 DESCRIPTION = "Kubernetes container readiness check utility"
-USAGE = "Usage: ready.py [-t <timeout>] -c <container_name> [-c <container_name> ...]\n" \
+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" \
+        "<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(argv):
     # args are a list of container names
     container_names = []
     timeout = DEF_TIMEOUT
     try:
-        opts, args = getopt.getopt(argv, "hc:t:", ["container-name=", "timeout=", "help"])
+        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))
@@ -152,12 +175,15 @@ def main(argv):
             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:
-                # spread in time potentially parallel execution in multiple containers
+                # spread in time potentially parallel execution in multiple
+                # containers
                 time.sleep(random.randint(5, 11))
 
+
 if __name__ == "__main__":
     main(sys.argv[1:])