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https://issues.apache.org/jira/browse/BEAM-3327?focusedWorklogId=93415&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-93415
]
ASF GitHub Bot logged work on BEAM-3327:
----------------------------------------
Author: ASF GitHub Bot
Created on: 20/Apr/18 20:38
Start Date: 20/Apr/18 20:38
Worklog Time Spent: 10m
Work Description: angoenka commented on a change in pull request #5189:
[BEAM-3327] Basic Docker environment factory
URL: https://github.com/apache/beam/pull/5189#discussion_r183163175
##########
File path:
runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/environment/DockerEnvironmentFactory.java
##########
@@ -0,0 +1,136 @@
+/*
+ * 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.
+ */
+package org.apache.beam.runners.fnexecution.environment;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.List;
+import java.util.function.Supplier;
+import org.apache.beam.model.pipeline.v1.RunnerApi.Environment;
+import org.apache.beam.runners.fnexecution.GrpcFnServer;
+import org.apache.beam.runners.fnexecution.artifact.ArtifactRetrievalService;
+import org.apache.beam.runners.fnexecution.control.ControlClientSource;
+import
org.apache.beam.runners.fnexecution.control.FnApiControlClientPoolService;
+import org.apache.beam.runners.fnexecution.control.InstructionRequestHandler;
+import org.apache.beam.runners.fnexecution.logging.GrpcLoggingService;
+import
org.apache.beam.runners.fnexecution.provisioning.StaticGrpcProvisionService;
+
+/**
+ * An {@link EnvironmentFactory} that creates docker containers by shelling
out to docker. Returned
+ * {@link RemoteEnvironment RemoteEnvironments} own their respective docker
containers. Not
+ * thread-safe.
+ */
+public class DockerEnvironmentFactory implements EnvironmentFactory {
+
+ public static DockerEnvironmentFactory forServices(
+ DockerWrapper docker,
+ GrpcFnServer<FnApiControlClientPoolService> controlServiceServer,
+ GrpcFnServer<GrpcLoggingService> loggingServiceServer,
+ GrpcFnServer<ArtifactRetrievalService> retrievalServiceServer,
+ GrpcFnServer<StaticGrpcProvisionService> provisioningServiceServer,
+ ControlClientSource clientSource,
+ // TODO: Refine this to IdGenerator when we determine where that should
live.
+ Supplier<String> idGenerator) {
+ return new DockerEnvironmentFactory(
+ docker,
+ controlServiceServer,
+ loggingServiceServer,
+ retrievalServiceServer,
+ provisioningServiceServer,
+ idGenerator,
+ clientSource);
+ }
+
+ private final DockerWrapper docker;
+ private final GrpcFnServer<FnApiControlClientPoolService>
controlServiceServer;
+ private final GrpcFnServer<GrpcLoggingService> loggingServiceServer;
+ private final GrpcFnServer<ArtifactRetrievalService> retrievalServiceServer;
+ private final GrpcFnServer<StaticGrpcProvisionService>
provisioningServiceServer;
+ private final Supplier<String> idGenerator;
+ private final ControlClientSource clientSource;
+
+ private DockerEnvironmentFactory(
+ DockerWrapper docker,
+ GrpcFnServer<FnApiControlClientPoolService> controlServiceServer,
+ GrpcFnServer<GrpcLoggingService> loggingServiceServer,
+ GrpcFnServer<ArtifactRetrievalService> retrievalServiceServer,
+ GrpcFnServer<StaticGrpcProvisionService> provisioningServiceServer,
+ Supplier<String> idGenerator,
+ ControlClientSource clientSource) {
+ this.docker = docker;
+ this.controlServiceServer = controlServiceServer;
+ this.loggingServiceServer = loggingServiceServer;
+ this.retrievalServiceServer = retrievalServiceServer;
+ this.provisioningServiceServer = provisioningServiceServer;
+ this.idGenerator = idGenerator;
+ this.clientSource = clientSource;
+ }
+
+ /** Creates a new, active {@link RemoteEnvironment} backed by a local Docker
container. */
+ @Override
+ public RemoteEnvironment createEnvironment(Environment environment) throws
Exception {
+ String workerId = idGenerator.get();
+
+ // Prepare docker invocation.
+ Path workerPersistentDirectory =
Files.createTempDirectory("worker_persistent_directory");
+ Path semiPersistentDirectory =
Files.createTempDirectory("semi_persistent_dir");
+ String containerImage = environment.getUrl();
+ // TODO: https://issues.apache.org/jira/browse/BEAM-4148 The default
service address will not
+ // work for Docker for Mac.
+ String loggingEndpoint =
loggingServiceServer.getApiServiceDescriptor().getUrl();
+ String artifactEndpoint =
retrievalServiceServer.getApiServiceDescriptor().getUrl();
+ String provisionEndpoint =
provisioningServiceServer.getApiServiceDescriptor().getUrl();
+ String controlEndpoint =
controlServiceServer.getApiServiceDescriptor().getUrl();
+ List<String> args =
+ Arrays.asList(
+ "-v",
+ // TODO: Mac only allows temporary mounts under /tmp by default
(as of 17.12).
+ String.format("%s:%s", workerPersistentDirectory,
semiPersistentDirectory),
+ // NOTE: Host networking does not work on Mac, but the command
line flag is accepted.
+ "--network=host",
+ containerImage,
+ String.format("--id=%s", workerId),
+ String.format("--logging_endpoint=%s", loggingEndpoint),
+ String.format("--artifact_endpoint=%s", artifactEndpoint),
+ String.format("--provision_endpoint=%s", provisionEndpoint),
+ String.format("--control_endpoint=%s", controlEndpoint),
+ String.format("--semi_persist_dir=%s", semiPersistentDirectory));
+
+ // Wrap the blocking call to clientSource.get in case an exception is
thrown.
+ String containerId = null;
+ InstructionRequestHandler instructionHandler;
+ try {
+ containerId = docker.runImage(containerImage, args);
+ // Wait on a client from the gRPC server.
+ instructionHandler = clientSource.get(workerId);
Review comment:
Given the docker limitation of exposing process health, this seems
reasonable.
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Issue Time Tracking
-------------------
Worklog Id: (was: 93415)
Time Spent: 14h 20m (was: 14h 10m)
> Add abstractions to manage Environment Instance lifecycles.
> -----------------------------------------------------------
>
> Key: BEAM-3327
> URL: https://issues.apache.org/jira/browse/BEAM-3327
> Project: Beam
> Issue Type: New Feature
> Components: runner-core
> Reporter: Thomas Groh
> Assignee: Ben Sidhom
> Priority: Major
> Labels: portability
> Time Spent: 14h 20m
> Remaining Estimate: 0h
>
> This permits remote stage execution for arbitrary environments
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