add support for extensions

.vscode/settings.json

@@ -48,6 +48,7 @@
         "tablespace",
         "tablespaces",
         "tidscan",
+        "timescaledb",
         "timezonesets",
         "trgm",
         "usename",

manifests/exporter/dirs.pp

@@ -0,0 +1,21 @@
+## postgresql_cd::exporter::dirs.pp
+# Module name: postgresql_cd
+# Author: Arne Teuke (arne_teuke@confdroid.com)
+# @summary Class manages the postgresql exporter dirs
+###############################################################################
+class postgresql_cd::exporter::dirs (
+
+) inherits postgresql_cd::params {
+  if ($fqdn == $pl_server_fqdn) and ($pl_use_exporter == true) {
+    file { $pl_install_dir:
+      ensure   => directory,
+      owner    => 'postgres',
+      group    => 'postgres',
+      mode     => '0755',
+      selrange => s0,
+      selrole  => object_r,
+      seltype  => usr_t,
+      seluser  => system_u,
+    }
+  }
+}

manifests/exporter/files.pp

@@ -0,0 +1,11 @@
+## postgresql_cd::exporter::files.pp
+# Module name: postgresql_cd
+# Author: Arne Teuke (arne_teuke@confdroid.com)
+# @summary Class manages the postgresql  exporter files
+###############################################################################
+class postgresql_cd::exporter::files (
+
+) inherits postgresql_cd::params {
+  if ($fqdn == $pl_server_fqdn) and ($pl_use_exporter == true) {
+    require postgresql_cd::exporter::dirs
+}

manifests/exporter/service.pp

@@ -0,0 +1,19 @@
+## postgresql_cd::exporter::service.pp
+# Module name: postgresql_cd
+# Author: Arne Teuke (arne_teuke@confdroid.com)
+# @summary Class manages the postgresql exporter service
+###############################################################################
+class postgresql_cd::exporter::service (
+
+) inherits postgresql_cd::params {
+  if ($fqdn == $pl_server_fqdn) and ($pl_use_exporter == true) {
+    require postgresql_cd::exporter::files
+
+#    service { $pl_exporter_service:
+#      ensure     => running,
+#      hasstatus  => true,
+#      hasrestart => true,
+#      enable     => true,
+#    }
+  }
+}

manifests/main/config.pp

@@ -10,5 +10,8 @@ class postgresql_cd::main::config (
 
   if $fqdn == $pl_server_fqdn {
     include postgresql_cd::server::service
+    if $pl_use_exporter == true {
+      include postgresql_cd::exporter::service
+    }
   }
 }

manifests/main/install.pp

@@ -13,6 +13,11 @@ class postgresql_cd::main::install (
     package { $reqpackages_client:
       ensure => $pkg_ensure,
     }
+    if $pl_manage_extensions == true {
+      package { $reqpackages_extensions:
+        ensure => $pkg_ensure,
+      }
+    }
   }
 
   if $fqdn != $pl_server_fqdn {

manifests/params.pp

@@ -5,6 +5,7 @@
 # @param [String] pl_server_fqdn the fqdn of the postgresql server. Any other
 #   system will be configured as client
 # @param [Array] reqpackages_server the packages for the server
+# @param [Array] reqpackages_extensions the packages for extensions
 # @param [String] reqpackages_client the packages for the client
 # @param [String] pkg_ensure which version of the packages to install, i.e.
 #   'latest', 'present' '13.20',
@@ -20,6 +21,9 @@
 # @param [String] pl_server_key the name of the server key
 # @param [String] pl_ca_crt the name of the CA  crt
 # @param [Boolean] pl_manage_content whether to manage roles and databases
+# @param [Boolean] pl_manage_extensions whether to manage extensions
+# @param [Boolean] pl_use_exporter whether to use the postgresql-exporter
+# @param [String] pl_install_dir  the path for the postgres-exporter files
 ##############################################################################
 class postgresql_cd::params (
 
@@ -27,6 +31,7 @@ class postgresql_cd::params (
 
   # installation
   Array $reqpackages_server       = ['postgresql-server','postgresql-contrib'],
+  Array $reqpackages_extensions   = ['pg_stat_statements','timescaledb'],
   String $reqpackages_client      = 'postgresql',
   String $pkg_ensure              = 'latest',
 
@@ -45,6 +50,11 @@ class postgresql_cd::params (
   String $pl_server_key           = 'server.key',
   String $pl_ca_crt               = 'root.crt',
   Boolean $pl_manage_content      = true,
+  Boolean $pl_manage_extensions   = false,
+
+  # postgresql exporter
+  Boolean $pl_use_exporter        = false,
+  String $pl_install_dir          = '/opt/postgres-exporter',
 
 ) {
   $fqdn                     = $facts['networking']['fqdn']
@@ -52,9 +62,6 @@ class postgresql_cd::params (
   $os_name                  = $facts['os']['name']
   $os_release               = $facts['os']['release']['major']
 
-  # Service
-  $pl_service               = 'postgresql'
-
   # Directories
   $pl_data_dir              = '/var/lib/pgsql/data/'
 
@@ -63,6 +70,10 @@ class postgresql_cd::params (
   $pl_pg_hba_rule_conf      = 'postgresql_cd/server/pghba/pg_hba_rule.conf.erb'
   $pl_pg_hba_conf_erb       = 'postgresql_cd/server/pghba/pg_hba.conf.erb'
 
+  # Service
+  $pl_service               = 'postgresql'
+  $pl_exporter_service      = 'postgres_exporter'
+
   # includes must be last
   include postgresql_cd::main::config
 }

templates/postgresql.conf.erb

@@ -705,8 +705,12 @@ lc_time = 'en_US.UTF-8'				# locale for time formatting
 default_text_search_config = 'pg_catalog.english'
 
 # - Shared Library Preloading -
-
-#shared_preload_libraries = ''	# (change requires restart)
+<% @pl_manage_extensions == true -%>
+shared_preload_libraries = <%= @pl_reqpackages_extensions %>	# (change requires restart)
+<% end -%>
+<% @pl_manage_extensions != true -%>
+# shared_preload_libraries = ''
+<% end -%>
 #local_preload_libraries = ''
 #session_preload_libraries = ''
 #jit_provider = 'llvmjit'		# JIT library to use