x/packstack
Code Issues Proposed changes

Adding Nagios Support

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This commit adds an option to install Nagios to monitor the
openstack components. Initially we are only monitoring a small
subset of what could eventually be monitored
http://bugzilla.redhat.com/show_bug.cgi?id=912768

Change-Id: I176876e5ecc35e7c58ef49534341939fd7998701
This commit is contained in:
Derek Higgins
2013-02-20 06:25:31 -05:00
parent 76e6de9a61
commit 40fecc1a15
10 changed files with 356 additions and 0 deletions
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170
packstack/plugins/nagios_910.py Normal file
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@@ -0,0 +1,170 @@
"""
Installs and configures Nagios
"""
import uuid
import logging
import packstack.installer.engine_validators as validate
from packstack.installer import basedefs, output_messages
import packstack.installer.common_utils as utils
from packstack.modules.ospluginutils import gethostlist,\
getManifestTemplate,\
appendManifestFile
# Controller object will be initialized from main flow
controller = None
# Plugin name
PLUGIN_NAME = "OS-Nagios"
PLUGIN_NAME_COLORED = utils.getColoredText(PLUGIN_NAME, basedefs.BLUE)
logging.debug("plugin %s loaded", __name__)
def initConfig(controllerObject):
global controller
controller = controllerObject
logging.debug("Adding OpenStack Nagios configuration")
paramsList = [
{"CMD_OPTION" : "nagios-host",
"USAGE" : "The IP address of the server on which to install the Nagios server",
"PROMPT" : "Enter the IP address of the Nagios server",
"OPTION_LIST" : [],
"VALIDATORS" : [validate.validate_ssh],
"DEFAULT_VALUE" : utils.getLocalhostIP(),
"MASK_INPUT" : False,
"LOOSE_VALIDATION": True,
"CONF_NAME" : "CONFIG_NAGIOS_HOST",
"USE_DEFAULT" : False,
"NEED_CONFIRM" : False,
"CONDITION" : False },
{"CMD_OPTION" : "nagios-passwd",
"USAGE" : "The password of the nagiosadmin user on the Nagios server",
"PROMPT" : "Enter the password for the nagiosadmin user",
"OPTION_LIST" : [],
"VALIDATORS" : [validate.validate_not_empty],
"DEFAULT_VALUE" : uuid.uuid4().hex[:16],
"MASK_INPUT" : True,
"LOOSE_VALIDATION": True,
"CONF_NAME" : "CONFIG_NAGIOS_PW",
"USE_DEFAULT" : False,
"NEED_CONFIRM" : False,
"CONDITION" : False },
]
groupDict = { "GROUP_NAME" : "NAGIOS",
"DESCRIPTION" : "Nagios Config parameters",
"PRE_CONDITION" : "CONFIG_NAGIOS_INSTALL",
"PRE_CONDITION_MATCH" : "y",
"POST_CONDITION" : False,
"POST_CONDITION_MATCH" : True}
controller.addGroup(groupDict, paramsList)
def initSequences(controller):
conf = controller.CONF
if conf['CONFIG_NAGIOS_INSTALL'] != 'y':
return
nagiossteps = [
{'title': 'Adding Nagios server manifest entries', 'functions':[createmanifest]},
{'title': 'Adding Nagios host manifest entries', 'functions':[createnrpemanifests]}
]
controller.addSequence("Installing Nagios", [], [], nagiossteps)
def _serviceentry(**kwargs):
s = 'define service {\n'
keys = kwargs.keys()
keys.sort()
for key in keys:
s += "\t%s\t%s\n"%(key, kwargs[key])
s+= "\t}\n"
return s
def _copy_script(**kwargs):
# TODO : Replace all these shell templates with with python
s = ('file{"/usr/lib64/nagios/plugins/%(name)s":'
'mode => 755, owner => "nagios", seltype => "nagios_unconfined_plugin_exec_t",'
'content => template("packstack/%(name)s.erb"),}\n'
'nagios_command{"%(name)s": command_line => "/usr/lib64/nagios/plugins/%(name)s", }\n' % kwargs)
return s
def createmanifest():
manifest_entries = ''
# I should be adding service entries with nagios_service but it appears to be broken
# http://projects.puppetlabs.com/issues/3420
service_entries = ''
for hostname in gethostlist(controller.CONF):
manifest_entries += "nagios_host{'%s': address => '%s', use => 'linux-server', }\n" % (hostname, hostname)
service_entries += _serviceentry(name='load5-%s'%hostname, service_description='5 minute load average',
host_name=hostname, check_command="check_nrpe!load5", use="generic-service",
normal_check_interval='5')
service_entries += _serviceentry(name='df_var-%s'%hostname,
service_description='Percent disk space used on /var',
host_name=hostname,
check_command="check_nrpe!df_var", use="generic-service")
manifest_entries += _copy_script(name="keystone-user-list")
service_entries += _serviceentry(name='keystone-user-list',
service_description='number of keystone users',
host_name=controller.CONF['CONFIG_NAGIOS_HOST'],
check_command="keystone-user-list", use="generic-service",
normal_check_interval='5')
if controller.CONF['CONFIG_GLANCE_INSTALL'] == 'y':
manifest_entries += _copy_script(name="glance-index")
service_entries += _serviceentry(name='glance-index',
service_description='number of glance images',
host_name=controller.CONF['CONFIG_NAGIOS_HOST'],
check_command="glance-index", use="generic-service",
normal_check_interval='5')
if controller.CONF['CONFIG_NOVA_INSTALL'] == 'y':
manifest_entries += _copy_script(name="nova-list")
service_entries += _serviceentry(name='nova-list',
service_description='number of nova vm instances',
host_name=controller.CONF['CONFIG_NAGIOS_HOST'],
check_command="nova-list", use="generic-service",
normal_check_interval='5')
if controller.CONF['CONFIG_CINDER_INSTALL'] == 'y':
manifest_entries += _copy_script(name="cinder-list")
service_entries += _serviceentry(name='cinder-list',
service_description='number of cinder volumes',
host_name=controller.CONF['CONFIG_NAGIOS_HOST'],
check_command="cinder-list", use="generic-service",
normal_check_interval='5')
if controller.CONF['CONFIG_SWIFT_INSTALL'] == 'y':
manifest_entries += _copy_script(name="swift-list")
service_entries += _serviceentry(name='swift-list',
service_description='number of swift containers',
host_name=controller.CONF['CONFIG_NAGIOS_HOST'],
check_command="swift-list", use="generic-service",
normal_check_interval='5')
manifest_entries+="file{'/etc/nagios/resource.d/nagios_service.cfg': \n" \
"ensure => present, mode => 644,\n" \
"content => '%s'}" % service_entries
controller.CONF['CONFIG_NAGIOS_MANIFEST_CONFIG'] = manifest_entries
manifestfile = "%s_nagios.pp" % controller.CONF['CONFIG_NAGIOS_HOST']
manifestdata = getManifestTemplate("nagios_server.pp")
appendManifestFile(manifestfile, manifestdata)
def createnrpemanifests():
for hostname in gethostlist(controller.CONF):
controller.CONF['CONFIG_NRPE_HOST'] = hostname
manifestfile = "%s_nagios_nrpe.pp" % hostname
manifestdata = getManifestTemplate("nagios_nrpe.pp")
appendManifestFile(manifestfile, manifestdata)
controller.MESSAGES.append("To use Nagios, browse to http://%s/nagios "
"username : nagiosadmin, password : %s" %
(controller.CONF['CONFIG_NAGIOS_HOST'],
controller.CONF['CONFIG_NAGIOS_PW']))

12
packstack/plugins/prescript_000.py
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@@ -108,6 +108,18 @@ def initConfig(controllerObject):
"USE_DEFAULT" : False,
"NEED_CONFIRM" : False,
"CONDITION" : False },
{"CMD_OPTION" : "nagios-install",
"USAGE" : "Set to 'y' if you would like Packstack to install Nagios to monitor openstack hosts",
"PROMPT" : "Should Packstack install Nagios to monitor openstack hosts",
"OPTION_LIST" : ["y", "n"],
"VALIDATORS" : [validate.validate_options],
"DEFAULT_VALUE" : 'n',
"MASK_INPUT" : False,
"LOOSE_VALIDATION": False,
"CONF_NAME" : "CONFIG_NAGIOS_INSTALL",
"USE_DEFAULT" : False,
"NEED_CONFIRM" : False,
"CONDITION" : False },
]
groupDict = { "GROUP_NAME" : "GLOBAL",
"DESCRIPTION" : "Global Options",

14
packstack/puppet/modules/packstack/templates/cinder-list.erb Normal file
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@@ -0,0 +1,14 @@
#!/bin/env bash
. /etc/nagios/keystonerc_admin
data=$(cinder list 2>&1)
rv=$?
if [ "$rv" != "0" ] ; then
echo $data
exit $rv
fi
echo "$data" | grep -v -e '--------' -e ' Status ' | wc -l

13
packstack/puppet/modules/packstack/templates/glance-index.erb Normal file
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@@ -0,0 +1,13 @@
#!/bin/env bash
. /etc/nagios/keystonerc_admin
data=$(glance index 2>&1)
rv=$?
if [ "$rv" != "0" ] ; then
echo $data
exit $rv
fi
echo "$data" | grep -v -e "^ID " -e "---------------" | wc -l

13
packstack/puppet/modules/packstack/templates/keystone-user-list.erb Normal file
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@@ -0,0 +1,13 @@
#!/bin/env bash
. /etc/nagios/keystonerc_admin
data=$(keystone user-list 2>&1)
rv=$?
if [ "$rv" != "0" ] ; then
echo $data
exit $rv
fi
echo "$data" | grep -v -e " id " -e "---------------" | wc -l

13
packstack/puppet/modules/packstack/templates/nova-list.erb Normal file
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@@ -0,0 +1,13 @@
#!/bin/env bash
. /etc/nagios/keystonerc_admin
data=$(nova list 2>&1)
rv=$?
if [ "$rv" != "0" ] ; then
echo $data
exit $rv
fi
echo "$data" | grep -v -e '--------' -e '| Status |' -e '^$' | wc -l

14
packstack/puppet/modules/packstack/templates/swift-list.erb Normal file
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@@ -0,0 +1,14 @@
#!/bin/env bash
. /etc/nagios/keystonerc_admin
data=$(swift list 2>&1)
rv=$?
if [ "$rv" != "0" ] ; then
echo $data
exit $rv
fi
echo "$data" |wc -l

2
packstack/puppet/templates/horizon.pp
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@@ -20,6 +20,8 @@ class {'memcached':}
class {'apache':}
class {'apache::mod::wsgi':}
file { '/etc/httpd/conf.d/openstack-dashboard.conf':}
file { '/etc/httpd/conf.d/nagios.conf':}
file { '/etc/httpd/conf.d/php.conf':}
firewall { '001 horizon incoming':
proto => 'tcp',

41
packstack/puppet/templates/nagios_nrpe.pp Normal file
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@@ -0,0 +1,41 @@
package{'nrpe':
ensure => present,
before => Class['nagios_configs']
}
class nagios_configs(){
file_line{'allowed_hosts':
path => '/etc/nagios/nrpe.cfg',
match => 'allowed_hosts=',
line => 'allowed_hosts=%(CONFIG_NAGIOS_HOST)s',
}
# 5 minute load average
file_line{'load5':
path => '/etc/nagios/nrpe.cfg',
match => 'command\[load5\]=',
line => 'command[load5]=cut /proc/loadavg -f 1 -d " "',
}
# disk used on /var
file_line{'df_var':
path => '/etc/nagios/nrpe.cfg',
match => "command\[df_var\]=",
line => "command[df_var]=df /var/ | sed -re 's/.* ([0-9]+)%%.*/\\1/' | grep -E '^[0-9]'",
}
}
class{'nagios_configs':
notify => Service['nrpe'],
}
service{'nrpe':
ensure => running,
hasstatus => true,
}
firewall { '001 nrpe incoming':
proto => 'tcp',
dport => ['5666'],
action => 'accept',
}

64
packstack/puppet/templates/nagios_server.pp Normal file
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@@ -0,0 +1,64 @@
package{['nagios', 'nagios-plugins-nrpe', 'nagios-plugins-ping']:
ensure => present,
before => Class['nagios_configs']
}
file { 'resource-d':
path => '/etc/nagios/resource.d',
ensure => directory,
owner => 'nagios',
before => Class['nagios_configs'],
require => Package['nagios']
}
class nagios_configs(){
file{['/etc/nagios/resource.d/nagios_command.cfg', '/etc/nagios/resource.d/nagios_host.cfg']:
ensure => 'present',
mode => '0644',
}
# Remove the entry for localhost, it contains services we're not
# monitoring
file{['/etc/nagios/objects/localhost.cfg']:
ensure => 'present',
content => '',
}
Nagios_command{
target => '/etc/nagios/resource.d/nagios_command.cfg'
}
Nagios_host{
target => '/etc/nagios/resource.d/nagios_host.cfg'
}
file_line{'resource.d':
path => '/etc/nagios/nagios.cfg',
line => 'cfg_dir=/etc/nagios/resource.d',
}
nagios_command{'check_nrpe':
command_line => '/usr/lib64/nagios/plugins/check_nrpe -H $HOSTADDRESS$ -c $ARG1$',
}
exec{'nagiospasswd':
command => '/usr/bin/htpasswd -b /etc/nagios/passwd nagiosadmin %(CONFIG_NAGIOS_PW)s',
}
file {"/etc/nagios/keystonerc_admin":
ensure => "present", owner => "nagios", mode => '0600',
content => "export OS_USERNAME=admin
export OS_TENANT_NAME=admin
export OS_PASSWORD=%(CONFIG_KEYSTONE_ADMIN_PW)s
export OS_AUTH_URL=http://%(CONFIG_KEYSTONE_HOST)s:35357/v2.0/ ",}
%(CONFIG_NAGIOS_MANIFEST_CONFIG)s
}
class{'nagios_configs':
notify => [Service['nagios'], Service['httpd']],
}
service{['nagios', 'httpd']:
ensure => running,
hasstatus => true,
}