Please install atop and screen on all nodes

[Tomasz 'Zen' Napierala]

Please install on all nodes following packages:
- screen
- atop

Atop is necessary to troubleshoot scalability issues. Screen just for convenience

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/134554

[Bogdan Dobrelya (bogdando)]

Raised to high due to related bug https://bugs.launchpad.net/fuel/+bug/1389155 which requires this one as well

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/134554
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=a222976843ca2fdcce5be90de3352a842e78a9bb
Submitter: Jenkins
Branch: master

commit a222976843ca2fdcce5be90de3352a842e78a9bb
Author: Oleksiy Molchanov <email address hidden>
Date: Fri Nov 14 16:53:08 2014 +0200

    Provide atop and screen to all nodes

    Provide installation and configuration
    of atop and screen to all nodes

    By default, make snapshot of system status each 20 seconds and keep
    them for 7 days locally for every node.
    It shows the occupation of the most critical hardware resources (from
    a performance point of view) on system level, i.e. cpu, memory, disk
    and network. Also:
    * Keep recorded data in binary format in /var/log/atop directory for
      7 days and delete an older ones by a logrotate job.
    * Additionally consumes maximum of 1.5G-2G of disk space for
      each node.
    * Add recorded atop data for the current day only (created as a symlink)
      to the diagnostic logs snapshot as well (bug/1389155).

    DocImpact
    Closes-Bug: 1385122

    Signed-off-by: Sergii Golovatiuk <email address hidden>
    Change-Id: Ib46ad049bc523f120da1ddaf20fb63a7b135153c

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/137474

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/137474
Committed: https://git.openstack.org/cgit/stackforge/fuel-docs/commit/?id=9d19fab5a9202c13dd7fda249436c7379e11e751
Submitter: Jenkins
Branch: master

commit 9d19fab5a9202c13dd7fda249436c7379e11e751
Author: Meg McRoberts <email address hidden>
Date: Wed Nov 26 13:03:29 2014 -0800

    atop documentation

    Document the atop/screen logging facility added in 6.0

    operations/troubleshooting/1000-logs -- describe implmentation
    and advanced configuration and usage instructions.

    terminology/overcommit -- reference this material as a way
    to monitor resource utilization.

    Change-Id: I5327a4791fb62683aa59cfcd512ce72bec1dbf41
    Partial-Bug: 1385122

[Tomasz 'Zen' Napierala (tzn)]

This does not solve problem on fuel node - and this one is actually most important

[Bogdan Dobrelya (bogdando)]

We have a separate bug for master node https://bugs.launchpad.net/fuel/+bug/1362154
Added atop to the description