gerrit at wikimedia
Aug 11, 2013, 10:13 PM
Post #2 of 2
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[MediaWiki-commits] [Gerrit] ceph: add ceph::nagios class - change (operations/puppet)
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Faidon has submitted this change and it was merged.
Change subject: ceph: add ceph::nagios class
......................................................................
ceph: add ceph::nagios class
Add a ceph client key, a nagios check, an nrpe config and a monitor, all
via the ceph::nagios class.
The nrpe bits aren't pretty, but these hopefully will soon be worked on.
Change-Id: I4c7ee625f88aa27e7e2d703008f61464a72fe3fa
---
M manifests/role/ceph.pp
A modules/ceph/manifests/nagios.pp
A modules/ceph/templates/check_ceph_health.erb
3 files changed, 98 insertions(+), 1 deletion(-)
Approvals:
Faidon: Looks good to me, approved
jenkins-bot: Verified
diff --git a/manifests/role/ceph.pp b/manifests/role/ceph.pp
index 09fdbd4..47ca609 100644
--- a/manifests/role/ceph.pp
+++ b/manifests/role/ceph.pp
@@ -57,7 +57,7 @@
monitor_secret => $passwords::ceph::eqiad::monitor_secret,
}
- # FIXME: need a Ceph nagios check
+ include ceph::nagios
}
class osd inherits role::ceph::eqiad {
diff --git a/modules/ceph/manifests/nagios.pp b/modules/ceph/manifests/nagios.pp
new file mode 100644
index 0000000..0e7d6c4
--- /dev/null
+++ b/modules/ceph/manifests/nagios.pp
@@ -0,0 +1,83 @@
+# Class: ceph::nagios
+#
+# This class sets up an NRPE service check for Ceph healthiness.
+#
+# Parameters:
+#
+# Actions:
+# Creates a separate Ceph admin key with minimum permissions
+# Installs a Nagios plugin to /usr/lib/nagios/plugins
+# Sets up the NRPE configuration for the check
+# Exports a Nagios monitor service check
+#
+# Requires:
+# Class[ceph]
+# Package['nagios-nrpe-server']
+# Package['nagios-plugins-basic']
+# Define['nrpe::monitor_service']
+#
+# Sample Usage:
+# include ceph::nagios
+
+class ceph::nagios(
+ $ensure='present',
+ $cluster='ceph',
+ $entity='nagios',
+) {
+ Class['ceph'] -> Class['ceph::nagios']
+
+ $keyring = "/var/lib/ceph/nagios/${cluster}.keyring"
+
+ case $ensure {
+ present: {
+ $ensure_dir = 'directory'
+ File['/var/lib/ceph/nagios'] -> Ceph::Key[$entity]
+ }
+ absent: {
+ $ensure_dir = 'absent'
+ # broken due to autorequire bug,
+ # http://projects.puppetlabs.com/issues/14518
+ #Ceph::Key[$entity] -> File['/var/lib/ceph/nagios']
+ }
+ default: {
+ fail("${name} ensure parameter must be absent or present")
+ }
+ }
+
+ file { '/var/lib/ceph/nagios':
+ ensure => $ensure_dir,
+ owner => 'root',
+ group => 'root',
+ mode => '0644',
+ backup => false,
+ force => true,
+ }
+
+ ceph::key { $entity:
+ ensure => $ensure,
+ keyring => $keyring,
+ caps => 'mon "allow r"',
+ owner => 'root',
+ group => 'nagios',
+ mode => '0440',
+ require => Package['nagios-nrpe-server'], # for the nagios group
+ }
+
+ $nagios_plugin_path = '/usr/lib/nagios/plugins/check_ceph_health'
+
+ file { $nagios_plugin_path:
+ ensure => $ensure,
+ owner => 'root',
+ group => 'root',
+ mode => '0555',
+ content => template('ceph/check_ceph_health.erb'),
+ # nagios-plugins-basic for the dir /usr/lib/nagios/plugins, ewww.
+ require => Package['nagios-plugins-basic'],
+ }
+
+ nrpe::monitor_service { 'ceph_health':
+ ensure => $ensure,
+ description => 'Ceph',
+ nrpe_command => $nagios_plugin_path,
+ }
+}
diff --git a/modules/ceph/templates/check_ceph_health.erb b/modules/ceph/templates/check_ceph_health.erb
new file mode 100755
index 0000000..3eaa8f3
--- /dev/null
+++ b/modules/ceph/templates/check_ceph_health.erb
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+CLUSTER="<%= @cluster %>"
+ENTITY="<%= @entity %>"
+KEYRING="<%= @keyring %>"
+
+HEALTH=$(ceph --cluster "$CLUSTER" --id "$ENTITY" --keyring "$KEYRING" health)
+
+echo "Ceph $HEALTH"
+if echo $HEALTH | grep -q OK; then
+ exit 0
+else
+ exit 2
+fi
--
To view, visit https://gerrit.wikimedia.org/r/78792
To unsubscribe, visit https://gerrit.wikimedia.org/r/settings
Gerrit-MessageType: merged
Gerrit-Change-Id: I4c7ee625f88aa27e7e2d703008f61464a72fe3fa
Gerrit-PatchSet: 2
Gerrit-Project: operations/puppet
Gerrit-Branch: production
Gerrit-Owner: Faidon <faidon [at] wikimedia>
Gerrit-Reviewer: Faidon <faidon [at] wikimedia>
Gerrit-Reviewer: jenkins-bot
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