Ken Sipe created MESOS-1684:
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Summary: Default the System .dockercfg if present
Key: MESOS-1684
URL: https://issues.apache.org/jira/browse/MESOS-1684
Project: Mesos
Issue Type: Improvement
Components: containerization
Affects Versions: 0.20.0
Environment: General Linux with Docker Support
Reporter: Ken Sipe
The behavior of the up coming mesos release 0.20 with docker support is to set
the sandbox to the $HOME. This is great if .dockercfg is one of the payloads
of the URIs. This solves an important model. However the other model is
that docker and login information is provisioned on all the slaves. The
configuration file has sensitive credential information which is just Base64
encoded. It is likely that many organizations will not want pass that around
via URIs and will want to provision the slaves with this file.
I suggest that if we know the task is docker (dockerinfo is provided), then we
check to see if $HOME/.dockercfg exists. if it does, copy that first as a
default. If it exists and a .dockercfg is passed, the extraction will copy
over the default file.
This has the advantage of providing a default consistent with what is expect in
the docker world + the ability to override to allow each framework or task to
define its own private repo.
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