2 # Cookbook:: postgresql
5 # Copyright:: 2012, OpenStreetMap Foundation
7 # Licensed under the Apache License, Version 2.0 (the "License");
8 # you may not use this file except in compliance with the License.
9 # You may obtain a copy of the License at
11 # https://www.apache.org/licenses/LICENSE-2.0
13 # Unless required by applicable law or agreed to in writing, software
14 # distributed under the License is distributed on an "AS IS" BASIS,
15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 # See the License for the specific language governing permissions and
17 # limitations under the License.
20 include_recipe "apt::postgresql"
21 include_recipe "munin"
22 include_recipe "prometheus"
25 package "postgresql-common"
27 node[:postgresql][:versions].each do |version|
28 package "postgresql-#{version}"
29 package "postgresql-client-#{version}"
30 package "postgresql-contrib-#{version}"
31 package "postgresql-server-dev-#{version}"
33 defaults = node[:postgresql][:settings][:defaults] || {}
34 settings = node[:postgresql][:settings][version] || {}
36 standby_mode = settings[:standby_mode] || defaults[:standby_mode]
37 primary_conninfo = settings[:primary_conninfo] || defaults[:primary_conninfo]
39 passwords = if primary_conninfo
40 data_bag_item(primary_conninfo[:passwords][:bag],
41 primary_conninfo[:passwords][:item])
44 template "/etc/postgresql/#{version}/main/postgresql.conf" do
45 source "postgresql.conf.erb"
49 variables :version => version,
50 :defaults => defaults,
51 :settings => settings,
52 :primary_conninfo => primary_conninfo,
53 :passwords => passwords
54 notifies :reload, "service[postgresql]"
55 only_if { ::Dir.exist?("/etc/postgresql/#{version}/main") }
58 template "/etc/postgresql/#{version}/main/pg_hba.conf" do
59 source "pg_hba.conf.erb"
63 variables :early_rules => settings[:early_authentication_rules] || defaults[:early_authentication_rules],
64 :late_rules => settings[:late_authentication_rules] || defaults[:late_authentication_rules]
65 notifies :reload, "service[postgresql]"
66 only_if { ::Dir.exist?("/etc/postgresql/#{version}/main") }
69 template "/etc/postgresql/#{version}/main/pg_ident.conf" do
70 source "pg_ident.conf.erb"
74 variables :maps => settings[:user_name_maps] || defaults[:user_name_maps]
75 notifies :reload, "service[postgresql]"
76 only_if { ::Dir.exist?("/etc/postgresql/#{version}/main") }
79 link "/var/lib/postgresql/#{version}/main/server.crt" do
80 to "/etc/ssl/certs/ssl-cert-snakeoil.pem"
81 only_if { ::Dir.exist?("/var/lib/postgresql/#{version}/main") }
84 link "/var/lib/postgresql/#{version}/main/server.key" do
85 to "/etc/ssl/private/ssl-cert-snakeoil.key"
86 only_if { ::Dir.exist?("/var/lib/postgresql/#{version}/main") }
89 if standby_mode == "on"
90 file "/var/lib/postgresql/#{version}/main/standby.signal" do
96 file "/var/lib/postgresql/#{version}/main/standby.signal" do
102 service "postgresql" do
103 action [:enable, :start]
104 supports :status => true, :restart => true, :reload => true
107 ohai_plugin "postgresql" do
108 template "ohai.rb.erb"
112 package "libdbd-pg-perl"
114 clusters = node[:postgresql][:clusters] || []
116 clusters.each do |name, details|
117 suffix = name.tr("/", ":")
119 munin_plugin "postgres_bgwriter_#{suffix}" do
120 target "postgres_bgwriter"
122 conf_variables :port => details[:port]
125 munin_plugin "postgres_checkpoints_#{suffix}" do
126 target "postgres_checkpoints"
128 conf_variables :port => details[:port]
131 munin_plugin "postgres_connections_db_#{suffix}" do
132 target "postgres_connections_db"
134 conf_variables :port => details[:port]
137 munin_plugin "postgres_users_#{suffix}" do
138 target "postgres_users"
140 conf_variables :port => details[:port]
143 munin_plugin "postgres_xlog_#{suffix}" do
144 target "postgres_xlog"
146 conf_variables :port => details[:port]
149 next unless File.exist?("/var/lib/postgresql/#{details[:version]}/main/recovery.conf")
151 munin_plugin "postgres_replication_#{suffix}" do
152 target "postgres_replication"
154 conf_variables :port => details[:port]
158 uris = clusters.collect do |_, details|
159 "postgres@:#{details[:port]}/postgres?host=/run/postgresql"
162 template "/etc/prometheus/exporters/postgres_queries.yml" do
163 source "postgres_queries.yml.erb"
169 prometheus_exporter "postgres" do
174 options "--extend.query-path=/etc/prometheus/exporters/postgres_queries.yml"
175 environment "DATA_SOURCE_URI" => uris.sort.uniq.first,
176 "PG_EXPORTER_AUTO_DISCOVER_DATABASES" => "true",
177 "PG_EXPORTER_EXCLUDE_DATABASES" => "postgres,template0,template1"
178 restrict_address_families "AF_UNIX"
180 subscribes :restart, "template[/etc/prometheus/exporters/postgres_queries.yml]"