985cc1838f
Install devstack with vitrage before install nagios via omd
to avoid apache2 pid issue.
Reason:
- omd manages apache2 by itself
- horizon and keystone are sites of apache2
- stop apache2 via service will fail beacause of omd
When using devstack, remember to stop omd apache2's sites
Change-Id: If8c1dd9dfcb5ff7819db10c1cfa3d67c021a2feb
Closes-Bug: #1629811
90 lines
2.8 KiB
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90 lines
2.8 KiB
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Nagios-for-Devstack Configuration Guide
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=======================================
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Overview
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--------
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This page describes how to manually install and configure Nagios on devstack.
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After following the steps described here, Nagios will be installed via the OMD
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package (http://omdistro.org/) and will have a basic set of tests for
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monitoring the Devstack VM. It will then be possible to configure a Nagios
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datasource for Vitrage.
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The following guide is for Ubuntu. With slight modifications it should work for
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other linux flavours. Links for this purpose are added below.
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Prerequisites
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------------
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Install devstack with vitrage before install Nagios via OMD due to this issue_
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.. _issue: https://bugs.launchpad.net/vitrage/+bug/1629811
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Installation
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------------
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1. Update your repo to include the OMD key:
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::
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wget -q "https://labs.consol.de/repo/stable/RPM-GPG-KEY" -O - | sudo apt-key add -
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2. Update your repo with the OMD site. For example, for ubuntu trusty release:
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::
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sudo bash -c "echo 'deb https://labs.consol.de/repo/stable/ubuntu trusty main' >> /etc/apt/sources.list"
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sudo apt-get update
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For additional distros, see https://labs.consol.de/repo/stable/
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3. Install OMD
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::
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sudo apt-get install omd
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4. Create a site for nagios with a name of your choosing, for example
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"my_site".
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::
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sudo omd create my_site
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sudo omd config my_site set APACHE_TCP_PORT 54321
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sudo omd config my_site set APACHE_TCP_ADDR 0.0.0.0
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sudo omd start my_site
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You can now access your Nagios site here: *http://<devstack_ip>:54321/my_site/omd*.
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::
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username: omdadmin
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password: omd
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*Notes:*
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- The default port is OMD uses is 5000, which is also used by OpenStack
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Keystone, and so it must be changed. Port 54321 used here is only an
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example.
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- *APACHE_TCP_ADDR* indicates the address to listen on. Use 0.0.0.0 to
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listen for all traffic addressed to the specified port. Use a different
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address to listen on a specific (public) address.
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- When using devstack, remember to stop omd apache2's sites
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5. Install the Check_MK agent on devstack VM:
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::
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sudo apt-get install check-mk-agent
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6. Activate the Check_MK agent, by editing */etc/xinetd.d/check_mk* and
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**setting "disable" to "no"**, and then run
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::
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sudo service xinetd restart
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7. In your browser, go to *http://<devstack_ip>:<selected port>/my_site/omd*
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and follow the instructions at this link_ (**"Configuring the first host and
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checks"** section) to configure the nagios host.
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.. _link: http://mathias-kettner.de/checkmk_install_with_omd.html#H1:Configuring_the_first_host_and_checks
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8. *Vitrage Support.* With Nagios installed, you can now configure a datasource
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for it for Vitrage, by following the instructions here_.
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.. _here: https://github.com/openstack/vitrage/blob/master/doc/source/nagios-config.rst
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