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Diffstat (limited to 'manifests/munin.pp')
| -rw-r--r-- | manifests/munin.pp | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/manifests/munin.pp b/manifests/munin.pp new file mode 100644 index 0000000..a19a26f --- /dev/null +++ b/manifests/munin.pp @@ -0,0 +1,236 @@ +# munin.pp - everything a sitewide munin installation needs +# Copyright (C) 2007 David Schmitt <david@schmitt.edv-bus.at> +# See LICENSE for the full license granted to you. + +# the port is a parameter so vservers can share IP addresses and still be happy + +# Define where the individual nodes' configs are stored +$NODESDIR="/var/local/puppet/munin-nodes" + +class munin { + +class default_client { munin::client { default_munin_node: } } +class default_vserver_client { munin::vserver_client { vserver_munin_node: } } + +define client ($port = 4949, $bindhost = "fqdn") +{ + munin::plugin { + apt: ensure => absent; + # needs patch for xen-hosts + iostat: script_path => "/usr/local/bin"; + # others + [ apt_all, df_abs ]: ; + } + + munin::base { base: + port => $port, + bindhost => $bindhost, + } +} + +define vserver_client ($port = 4950, $bindhost = "fqdn") +{ + munin::plugin { + [ + apt, cpu, df, df_abs, df_inode, entropy, forks, interrupts, iostat, + irqstats, load, memory, open_files, open_inodes, swap + ]: + ensure => absent; + [ apt_all, netstat, processes]: ; + } + + munin::base { base: + port => $port, + bindhost => $bindhost, + } +} + +define base ($port = 4949, $bindhost = "fqdn") +{ + package { "munin-node": + ensure => installed, + require => [ User[munin], Group[munin] ] + } + + user { munin: + uid => 203, + gid => 203, + home => "/var/lib/munin", + shell => "/bin/false", + allowdupe => false, + } + + group { munin: + gid => 203, + allowdupe => false, + } + + file { + ["/var/lib/munin", "/var/lib/munin/plugin-state" ]: + ensure => directory, + owner => munin, group => munin; + "/var/run/munin": + ensure => directory, + owner => munin; + "/var/log/munin": + ensure => directory, + owner => munin, group => adm; + } + + replace { set_munin_node_port: + file => "/etc/munin/munin-node.conf", + pattern => "^port (?!$port)[0-9]*.*", + replacement => "port $port", + notify => Service[munin-node], + require => Package[munin-node], + } + + $real_bindhost = $bindhost ? { + "fqdn" => $fqdn, + default => $bindhost + } + debug("Using bindhost $real_bindhost for $fqdn") + + replace { set_munin_node_bindhost: + file => "/etc/munin/munin-node.conf", + pattern => "^host (?!$real_bindhost).*", + replacement => "host $real_bindhost", + notify => Service[munin-node], + require => Package[munin-node], + } + + line { allow_munin_host: + file => "/etc/munin/munin-node.conf", + line => "allow ^$munin_host$", + ensure => present, + notify => Service[munin-node], + require => Package[munin-node], + } + + line { set_fqdn: + file => "/etc/munin/munin-node.conf", + line => "host_name $fqdn", + ensure => present, + notify => Service[munin-node], + require => Package[munin-node], + } + + @@file { "munin_def_${real_bindhost}_$port": path => "${NODESDIR}/$fqdn", + ensure => present, + content => "[$fqdn]\n\taddress $real_bindhost\n\tport $port\n\texim_mailstats.graph_period minute\n\n", + } + + # TODO: das funktioniert noch nicht g'scheit + file { + [ "/etc/munin/plugins", "/etc/munin/plugin-conf.d"] : + checksum => mtime, ensure => directory, + require => Package[munin-node], + notify => Service[munin-node]; + "/etc/munin/munin-node.conf": + checksum => md5, + require => Package[munin-node], + } + + service { munin-node: + ensure => running, + subscribe => [ Package["munin-node"], + File["/etc/munin/munin-node.conf"], + Exec[exec_set_munin_node_bindhost], + Exec[exec_set_munin_node_port], + User[munin], Group[munin] ], + } + + # workaround bug in munin_node_configure + munin::plugin { postfix_mailvolume: ensure => absent } +} + + +class host { + err("$fqdn: include inetd") + package { [munin, micro-httpd]: + ensure => installed + } + append_if_no_such_line { micro-httpd: + file => "/etc/inetd.conf", + line => "micro_http_munin stream tcp nowait.800 nobody /usr/sbin/micro_httpd micro_httpd_munin /var/www/munin/", + require => Package[micro-httpd], + } + append_if_no_such_line { micro-http-munin-port: + file => "/etc/services", + line => "micro_http_munin 81/tcp", + } + + File <<||>> + + # monitor this file for updates + $munin_includes = "$splice_dir/munin_conf_includes" + file { $munin_includes: checksum => md5, } + + exec { create_munin_includes: + command => "/bin/sh -c '/bin/cat $NODESDIR/* > $munin_includes'", + subscribe => File[$NODESDIR] + } + + # create munin.conf + file_splice { munin_conf_includes: + file => "/etc/munin/munin.conf", + input_file => "$splice_dir/munin_conf_includes", + require => Exec[create_munin_includes], + subscribe => File[$munin_includes], + } + + +} + +define plugin ($ensure = "present", $script_path = "/usr/share/munin/plugins", $config = '') { + debug ( "munin_plugin: name=$name, ensure=$ensure, script_path=$script_path" ) + $plugin = "/etc/munin/plugins/$name" + $plugin_conf = "/etc/munin/plugin-conf.d/$name" + case $ensure { + "absent": { + debug ( "munin_plugin: suppressing $plugin" ) + } + "present": { + debug ( "munin_plugin: making $plugin using default $name" ) + file { + $plugin: + ensure => "$script_path/$name", + require => Package[munin-node], + notify => Service[munin-node], + } + } + default: { + debug ( "munin_plugin: making $plugin using $ensure" ) + file { + $plugin: + ensure => "$script_path/$ensure", + require => Package[munin-node], + notify => Service[munin-node], + } + } + } + case $config { + '': { + debug("no config for $name") + file { $plugin_conf: ensure => absent } + } + default: { + case $ensure { + absent: { + debug("removing config for $name") + file { $plugin_conf: ensure => absent } + } + default: { + debug("creating $plugin_conf") + file { $plugin_conf: + content => "[${name}]\n$config\n", + mode => 0644, owner => root, group => root, + } + } + } + } + } +} + + +} |