Create Disk Space Check and Alerts

[Sean Carlisle]

Currently we do not have monitoring for disk space. We have come across a couple of customers who had full /boot partitions due to apt's unattended upgrades installing new kernels and filling /boot (being addressed here: https://bugs.launchpad.net/openstack-ansible/+bug/1411897.) We need a check and associated alerts to proactively monitor for disks approaching certain space thresholds.

Desired features:

-Checks all mounted filesystems
-Configurable list of filesystems to exclude from check.
-Multiple thresholds for each filesystem:
         -warn on x% free
         -critical on y% free
-Configurable thresholds

[Bjoern (bjoern-t)]

So we have the maas_cdm playbook but that covers only the rootfs, for the controller we are missing /openstack. We need to check in what state those checks are.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/150371

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/150371
Committed: https://git.openstack.org/cgit/stackforge/os-ansible-deployment/commit/?id=3deb360808e1a6ae0bd97b7d154b10d96fc4eb08
Submitter: Jenkins
Branch: master

commit 3deb360808e1a6ae0bd97b7d154b10d96fc4eb08
Author: Andy McCrae <email address hidden>
Date: Tue Jan 27 11:32:54 2015 +0000

    Allow setup of specific MaaS filesystem monitors

    By default will generate a list of filesystems that are ext or xfs and
    set these up to be monitored with a specified threshold set in
    user_variables.

    Can loop through list of filesystems/thresholds specifically set in
    user_variables if needed, and the default for a server can be overridden
    in the rpc_user_config.yml per host.

    The user_variables.yml sample file, and the rpc_user_config.yml files
    have been updated to reflect these changes.

    Change-Id: I1959a630e2c603a76001f52db6b027bf71124c54
    Closes-Bug: #1414249

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: juno
Review: https://review.openstack.org/152090

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/152090
Committed: https://git.openstack.org/cgit/stackforge/os-ansible-deployment/commit/?id=ddb40fb76243e147aaff89fc1a6d843d5b6fe7f4
Submitter: Jenkins
Branch: juno

commit ddb40fb76243e147aaff89fc1a6d843d5b6fe7f4
Author: Andy McCrae <email address hidden>
Date: Tue Jan 27 11:32:54 2015 +0000

    Allow setup of specific MaaS filesystem monitors

    By default will generate a list of filesystems that are ext or xfs and
    set these up to be monitored with a specified threshold set in
    user_variables.

    Can loop through list of filesystems/thresholds specifically set in
    user_variables if needed, and the default for a server can be overridden
    in the rpc_user_config.yml per host.

    The user_variables.yml sample file, and the rpc_user_config.yml files
    have been updated to reflect these changes.

    Change-Id: I1959a630e2c603a76001f52db6b027bf71124c54
    Closes-Bug: #1414249
    (cherry picked from commit 3deb360808e1a6ae0bd97b7d154b10d96fc4eb08)