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60 lines
1.9 KiB
ReStructuredText
60 lines
1.9 KiB
ReStructuredText
Alerts module
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=============
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The alerts module can send simple alert messages about cluster health
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via e-mail. In the future, it will support other notification methods
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as well.
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:note: This module is *not* intended to be a robust monitoring
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solution. The fact that it is run as part of the Ceph cluster
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itself is fundamentally limiting in that a failure of the
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ceph-mgr daemon prevents alerts from being sent. This module
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can, however, be useful for standalone clusters that exist in
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environments where existing monitoring infrastructure does not
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exist.
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Enabling
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--------
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The *alerts* module is enabled with::
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ceph mgr module enable alerts
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Configuration
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-------------
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To configure SMTP, all of the following config options must be set
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(When setting ``mgr/alerts/smtp_destination``, you can use commas to separate multiple)::
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ceph config set mgr mgr/alerts/smtp_host *<smtp-server>*
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ceph config set mgr mgr/alerts/smtp_destination *<email-address-to-send-to>*
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ceph config set mgr mgr/alerts/smtp_sender *<from-email-address>*
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By default, the module will use SSL and port 465. To change that,::
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ceph config set mgr mgr/alerts/smtp_ssl false # if not SSL
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ceph config set mgr mgr/alerts/smtp_port *<port-number>* # if not 465
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To authenticate to the SMTP server, you must set the user and password::
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ceph config set mgr mgr/alerts/smtp_user *<username>*
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ceph config set mgr mgr/alerts/smtp_password *<password>*
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By default, the name in the ``From:`` line is simply ``Ceph``. To
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change that (e.g., to identify which cluster this is),::
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ceph config set mgr mgr/alerts/smtp_from_name 'Ceph Cluster Foo'
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By default, the module will check the cluster health once per minute
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and, if there is a change, send a message. To change that
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frequency,::
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ceph config set mgr mgr/alerts/interval *<interval>* # e.g., "5m" for 5 minutes
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Commands
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--------
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To force an alert to be send immediately,::
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ceph alerts send
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