Shane Kumpf created YARN-5428:
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Summary: Allow for specifying the docker client configuration
directory
Key: YARN-5428
URL: https://issues.apache.org/jira/browse/YARN-5428
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Shane Kumpf
Assignee: Shane Kumpf
The docker client allows for specifying a configuration directory that contains
the docker client's configuration. It is common to store "docker login"
credentials in this config, to avoid the need to docker login on each cluster
member.
By default the docker client config is $HOME/.docker/config.json on Linux.
However, this does not work with the current container executor user switching
and it may also be desirable to centralize this configuration beyond the single
user's home directory.
Note that the command line arg is for the configuration directory NOT the
configuration file.
This change will be needed to allow YARN to automatically pull images at
localization time or within container executor.
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