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Merge pull request apache#6265: [BEAM-4130] Bring up Job Server conta…
…iner for Python jobs
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@@ -19,7 +19,7 @@ | |
| FROM openjdk:8 | ||
| MAINTAINER "Apache Beam <[email protected]>" | ||
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| ADD target/beam-runners-flink_2.11-job-server.jar /opt/apache/beam/jars/ | ||
| ADD target/beam-runners-flink-job-server.jar /opt/apache/beam/jars/ | ||
| ADD target/flink-job-server.sh /opt/apache/beam/ | ||
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| WORKDIR /opt/apache/beam | ||
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101 changes: 101 additions & 0 deletions
101
sdks/python/apache_beam/runners/portability/job_server.py
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| # | ||
| # Licensed to the Apache Software Foundation (ASF) under one or more | ||
| # contributor license agreements. See the NOTICE file distributed with | ||
| # this work for additional information regarding copyright ownership. | ||
| # The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| # (the "License"); you may not use this file except in compliance with | ||
| # the License. You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
| # | ||
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| from __future__ import absolute_import | ||
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| import atexit | ||
| import logging | ||
| import os | ||
| import signal | ||
| import sys | ||
| import time | ||
| from subprocess import Popen | ||
| from threading import Lock | ||
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| class DockerizedJobServer(object): | ||
| """ | ||
| Spins up the JobServer in a docker container for local execution | ||
| """ | ||
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| def __init__(self, job_host="localhost", | ||
| job_port=8099, | ||
| artifact_port=8098, | ||
| harness_port_range=(8100, 8200), | ||
| max_connection_retries=5): | ||
| self.job_host = job_host | ||
| self.job_port = job_port | ||
| self.artifact_port = artifact_port | ||
| self.harness_port_range = harness_port_range | ||
| self.max_connection_retries = max_connection_retries | ||
| self.docker_process = None | ||
| self.process_lock = Lock() | ||
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| def start(self): | ||
| # TODO This is hardcoded to Flink at the moment but should be changed | ||
| job_server_image_name = os.environ['USER'] + \ | ||
| "-docker-apache.bintray.io/beam/flink-job-server:latest" | ||
| cmd = ["docker", "run", | ||
| # We mount the docker binary and socket to be able to spin up | ||
| # "sibling" containers for the SDK harness. | ||
| "-v", "/usr/local/bin/docker:/bin/docker", | ||
| "-v", "/var/run/docker.sock:/var/run/docker.sock"] | ||
| args = ["--job-host", self.job_host, "--job-port", str(self.job_port)] | ||
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| if sys.platform == "darwin": | ||
| # Docker-for-Mac doesn't support host networking, so we need to explictly | ||
| # publish ports from the Docker container to be able to connect to it. | ||
| # Also, all other containers need to be aware that they run Docker-on-Mac | ||
| # to connect against the internal Docker-for-Mac address. | ||
| cmd += ["-e", "DOCKER_MAC_CONTAINER=1"] | ||
| cmd += ["-p", "{}:{}".format(self.job_port, self.job_port)] | ||
| cmd += ["-p", "{}:{}".format(self.artifact_port, self.artifact_port)] | ||
| cmd += ["-p", "{0}-{1}:{0}-{1}".format( | ||
| self.harness_port_range[0], self.harness_port_range[1])] | ||
| args += ["--artifact-port", "{}".format(self.artifact_port)] | ||
| else: | ||
| # This shouldn't be set for MacOS because it detroys port forwardings, | ||
| # even though host networking is not supported on MacOS. | ||
| cmd.append("--network=host") | ||
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| cmd.append(job_server_image_name) | ||
| cmd += args | ||
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| logging.debug("Starting container with %s", cmd) | ||
| try: | ||
| self.docker_process = Popen(cmd) | ||
| atexit.register(self.stop) | ||
| signal.signal(signal.SIGINT, self.stop) | ||
| except: # pylint:disable=bare-except | ||
| logging.exception("Error bringing up container") | ||
| self.stop() | ||
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| return "{}:{}".format(self.job_host, self.job_port) | ||
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| def stop(self): | ||
| with self.process_lock: | ||
| if not self.docker_process: | ||
| return | ||
| num_retries = 0 | ||
| while self.docker_process.poll() is None and \ | ||
| num_retries < self.max_connection_retries: | ||
| logging.debug("Sending SIGINT to job_server container") | ||
| self.docker_process.send_signal(signal.SIGINT) | ||
| num_retries += 1 | ||
| time.sleep(1) | ||
| if self.docker_process.poll is None: | ||
| self.docker_process.kill() |
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