diff options
Diffstat (limited to 'kubernetes/readiness/docker/init')
| -rw-r--r-- | kubernetes/readiness/docker/init/Dockerfile | 4 | ||||
| -rw-r--r-- | kubernetes/readiness/docker/init/job_complete.py | 97 |
2 files changed, 101 insertions, 0 deletions
diff --git a/kubernetes/readiness/docker/init/Dockerfile b/kubernetes/readiness/docker/init/Dockerfile index 20f2268975..7214e04174 100644 --- a/kubernetes/readiness/docker/init/Dockerfile +++ b/kubernetes/readiness/docker/init/Dockerfile @@ -17,4 +17,8 @@ ENV TOKEN="/var/run/secrets/kubernetes.io/serviceaccount/token" COPY ready.py /root/ready.py RUN chmod a+x /root/ready.py + +COPY job_complete.py /root/job_complete.py +RUN chmod a+x /root/job_complete.py + ENTRYPOINT /root/ready.py diff --git a/kubernetes/readiness/docker/init/job_complete.py b/kubernetes/readiness/docker/init/job_complete.py new file mode 100644 index 0000000000..97d22da6c1 --- /dev/null +++ b/kubernetes/readiness/docker/init/job_complete.py @@ -0,0 +1,97 @@ +#!/usr/bin/python +import getopt +import logging +import os +import sys +import time + +from kubernetes import client + +# extract env variables. +namespace = os.environ['NAMESPACE'] +cert = os.environ['CERT'] +host = os.environ['KUBERNETES_SERVICE_HOST'] +token_path = os.environ['TOKEN'] + +with open(token_path, 'r') as token_file: + token = token_file.read().replace('\n', '') + +# setup logging +log = logging.getLogger(__name__) +handler = logging.StreamHandler(sys.stdout) +handler.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')) +handler.setLevel(logging.INFO) +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' +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: + job_status_type = response.status.conditions[0].type + if job_status_type == "Complete": + complete = True + 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) + + +DEF_TIMEOUT = 10 +DESCRIPTION = "Kubernetes container job complete check utility" +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" \ + "<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"]) + for opt, arg in opts: + if opt in ("-h", "--help"): + print("%s\n\n%s" % (DESCRIPTION, USAGE)) + sys.exit() + elif opt in ("-j", "--job-name"): + job_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 job_names.__len__() == 0: + print("Missing required input parameter(s)\n") + print(USAGE) + sys.exit(2) + + for job_name in job_names: + timeout = time.time() + timeout * 60 + while True: + complete = is_job_complete(job_name) + if complete is True: + break + elif time.time() > timeout: + log.warning("timed out waiting for '" + job_name + "' to be completed") + exit(1) + else: + time.sleep(5) + +if __name__ == "__main__": + main(sys.argv[1:])
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