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https://issues.apache.org/jira/browse/YARN-3853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sidharta Seethana updated YARN-3853:
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Attachment: YARN-3853.002.patch
Uploading a new version of the patch based on code review feedback.
> Add docker container runtime support to LinuxContainterExecutor
> ---------------------------------------------------------------
>
> Key: YARN-3853
> URL: https://issues.apache.org/jira/browse/YARN-3853
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: yarn
> Reporter: Sidharta Seethana
> Assignee: Sidharta Seethana
> Attachments: YARN-3853.001.patch, YARN-3853.002.patch
>
>
> Create a new DockerContainerRuntime that implements support for docker
> containers via container-executor. LinuxContainerExecutor should default to
> current behavior when launching containers but switch to docker when
> requested.
> Overview
> ===
> The current mechanism of launching/signaling containers is moved to its own
> (default) container runtime. In order to use docker container runtime a
> couple of environment variables have to be set. This will have to be
> revisited when we have a first class client side API to specify different
> container types and associated parameters. Using ‘pi’ as an example and using
> a custom docker image, this is how you could use the docker container runtime
> (LinuxContainerExecutor must be in use and the docker daemon needs to be
> running) :
> {code}
> export
> YARN_EXAMPLES_JAR=./share/hadoop/mapreduce/hadoop-mapreduce-examples-*.jar
> bin/yarn jar $YARN_EXAMPLES_JAR pi
> -Dmapreduce.map.env="YARN_CONTAINER_RUNTIME_TYPE=docker,YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=ashahab/hadoop-trunk"
>
> -Dyarn.app.mapreduce.am.env="YARN_CONTAINER_RUNTIME_TYPE=docker,YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=ashahab/hadoop-trunk"
>
> -Dmapreduce.reduce.env="YARN_CONTAINER_RUNTIME_TYPE=docker,YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=ashahab/hadoop-trunk"
> 4 1000
> {code}
>
> LinuxContainerExecutor can delegate to either runtime on a per container
> basis. If the docker container type is selected, LinuxContainerExecutor
> delegates to the DockerContainerRuntime which in turn uses docker support in
> the container-executor binary to launch/manage docker containers ( see
> YARN-3852 ) .
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