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author | Jan Tattermusch <jtattermusch@google.com> | 2015-10-01 09:22:03 -0700 |
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committer | Jan Tattermusch <jtattermusch@google.com> | 2015-10-02 12:47:40 -0700 |
commit | 91ad018c0026dc231e73ede1db17ef5e329d453c (patch) | |
tree | 8d080bfcaf7da55ed5fc4bb588f993ad1219a2ea /tools/run_tests/dockerjob.py | |
parent | f37cac7dd2b87bc2e9d44e6311149ff8acb29396 (diff) |
Build and run per-language containers for interop tests
Diffstat (limited to 'tools/run_tests/dockerjob.py')
-rwxr-xr-x | tools/run_tests/dockerjob.py | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/tools/run_tests/dockerjob.py b/tools/run_tests/dockerjob.py new file mode 100755 index 0000000000..e938a3c2f7 --- /dev/null +++ b/tools/run_tests/dockerjob.py @@ -0,0 +1,112 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Helpers to run docker instances as jobs.""" + +import jobset +import tempfile +import time +import uuid +import os +import subprocess + +_DEVNULL = open(os.devnull, 'w') + +def wait_for_file(filepath, timeout_seconds=15): + """Wait until given file exists and returns its content.""" + started = time.time() + while time.time() - started < timeout_seconds: + if os.path.isfile(filepath): + with open(filepath, 'r') as f: + return f.read() + time.sleep(1) + raise Exception('Failed to read file %s.' % filepath) + + +def docker_mapped_port(cid, port): + """Get port mapped to internal given internal port for given container.""" + output = subprocess.check_output('docker port %s %s' % (cid, port), shell=True) + return int(output.split(':', 2)[1]) + + +def finish_jobs(jobs): + """Kills given docker containers and waits for corresponding jobs to finish""" + for job in jobs: + job.kill(suppress_failure=True) + + while any(job.is_running() for job in jobs): + time.sleep(1) + + +def image_exists(image): + """Returns True if given docker image exists.""" + return subprocess.call(['docker','inspect', image], + stdout=_DEVNULL, + stderr=_DEVNULL) == 0 + + +def remove_image(image, skip_nonexistent=False, max_retries=10): + """Attempts to remove docker image with retries.""" + if skip_nonexistent and not image_exists(image): + return True + for attempt in range(0, max_retries): + if subprocess.call(['docker','rmi', '-f', image]) == 0: + return True + time.sleep(2) + print 'Failed to remove docker image %s' % image + return False + + +class DockerJob: + """Encapsulates a job""" + + def __init__(self, spec): + self._spec = spec + self._job = jobset.Job(spec, bin_hash=None, newline_on_success=True, travis=True, add_env={}, xml_report=None) + self._cidfile = spec.cidfile + self._cid = None + + def cid(self): + """Gets cid of this container""" + if not self._cid: + self._cid = wait_for_file(self._cidfile) + return self._cid + + def mapped_port(self, port): + return docker_mapped_port(self.cid(), port) + + def kill(self, suppress_failure=False): + """Sends kill signal to the container.""" + if suppress_failure: + self._job.suppress_failure_message() + return subprocess.call(['docker','kill', self.cid()]) == 0 + + def is_running(self): + """Polls a job and returns True if given job is still running.""" + return self._job.state(jobset.NoCache()) == jobset._RUNNING |