github.com/abayer/test-infra@v0.0.5/experiment/get_job_pods.py (about)

     1  #!/usr/bin/env python
     2  
     3  # Copyright 2017 The Kubernetes Authors.
     4  #
     5  # Licensed under the Apache License, Version 2.0 (the "License");
     6  # you may not use this file except in compliance with the License.
     7  # You may obtain a copy of the License at
     8  #
     9  #     http://www.apache.org/licenses/LICENSE-2.0
    10  #
    11  # Unless required by applicable law or agreed to in writing, software
    12  # distributed under the License is distributed on an "AS IS" BASIS,
    13  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  # See the License for the specific language governing permissions and
    15  # limitations under the License.
    16  
    17  # This script prints out lines with: "job-name: ['pod-id', 'pod-id-2']""
    18  #
    19  # USAGE: have KUBECONFIG pointed at your prow builds cluster then:
    20  #
    21  # get_job_pods.py [--show-all]
    22  #
    23  # EG:
    24  # `experiment/get_job_pods.py --show-all | grep pull-kubernetes-bazel-test`
    25  # will get you something like:
    26  # pull-kubernetes-bazel-test: ['c9e634a5-cbe6-11e7-9149-0a580a6c0216']
    27  
    28  from __future__ import print_function
    29  
    30  from argparse import ArgumentParser
    31  from collections import defaultdict
    32  import json
    33  import subprocess
    34  
    35  def get_pods_json(show_all):
    36      cmd = ["kubectl", "get", "po", "-n=test-pods", "-o=json"]
    37      if show_all:
    38          cmd.append("--show-all")
    39      res = subprocess.check_output(cmd)
    40      return json.loads(res)["items"]
    41  
    42  def get_pods_by_job(show_all):
    43      pods = get_pods_json(show_all)
    44      pods_by_job = defaultdict(list)
    45      for pod in pods:
    46          # check if prow job
    47          if "prow.k8s.io/job" not in pod["metadata"]["annotations"]:
    48              continue
    49          # get pod and job name, add to dict
    50          pod_name = pod["metadata"]["name"].encode('utf-8')
    51          job_name = pod["metadata"]["annotations"]["prow.k8s.io/job"].encode('utf-8')
    52          pods_by_job[job_name].append(pod_name)
    53      return pods_by_job
    54  
    55  def main():
    56      parser = ArgumentParser()
    57      parser.add_argument("--show-all", action='store_true')
    58      args = parser.parse_args()
    59      # get and print pods for each job
    60      pods_by_job = get_pods_by_job(args.show_all)
    61      jobs = sorted(pods_by_job.keys())
    62      for job in jobs:
    63          print(job+":", pods_by_job[job])
    64  
    65  if __name__ == '__main__':
    66      main()