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https://issues.apache.org/jira/browse/MESOS-816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Dusek updated MESOS-816:
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Attachment: mesos-shell-isolator.jpg
> Allow delegation to shell scripts for isolation
> -----------------------------------------------
>
> Key: MESOS-816
> URL: https://issues.apache.org/jira/browse/MESOS-816
> Project: Mesos
> Issue Type: Improvement
> Components: isolation, slave
> Reporter: Jason Dusek
> Priority: Minor
> Attachments: mesos-shell-isolator.jpg
>
> Original Estimate: 72h
> Remaining Estimate: 72h
>
> Delegating to shell scripts for isolation would make it easily to leverage
> the machinery provided by the LXC tools, LibVirt, VirtualBox and similar
> systems.
> Why go through command line tools for isolation? Such tools manage a great
> deal of the book-keeping around finding and efficiently cloning disk images
> and setting up the guest system (its hostname, TTYs, /dev/*, /proc) in a way
> that is broadly useful.
> A shell isolator would be called by the slave, with arguments allowing it to
> ultimately start the executor under isolation.
> One possible design is as follows:
> * The slave calls the isolator with two arguments: a path to a Mesos boot
> strap tool (a reimagining of mesos-launcher?) and a URL indicating how to
> connect to the slave.
> mesos-libvirt /usr/sbin/mesos-bootstrap localhost:5051
> * The isolator sets up a container and runs mesos-bootstrap therein, copying
> it (and attendant libraries?) as needed.
> * The mesos-bootstrap tool connects to the slave and retrieves the
> ExecutorInfo structure. It uses this information to launch the executor.
> * The executor connects to the slave and receives TaskInfos.
> Some questions arise with this design:
> * How do we ensure libraries needed by mesos-bootstrap are present?
> * What can we do to make it easier for the user to include libraries with the
> executor? Should directories to copy or union mount in to the container be
> part of the argument specification for the isolator?
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