postgresql

Table of Contents

1. Overview - What is the PostgreSQL module?
2. Module Description - What does the module do?
3. Setup - The basics of getting started with PostgreSQL module
   • PE 3.2 supported module
   • Configuring the server
4. Usage - How to use the module for various tasks
5. Reference - The classes, defines,functions and facts available in this module
6. Limitations - OS compatibility, etc.
7. Development - Guide for contributing to the module
8. Transfer Notice - Notice of authorship change
9. Contributors - List of module contributors

Overview

The PostgreSQL module allows you to easily manage postgres databases with Puppet.

Module Description

PostgreSQL is a high-performance, free, open-source relational database server. The postgresql module allows you to manage PostgreSQL packages and services on several operating systems, while also supporting basic management of PostgreSQL databases and users. The module offers support for basic management of common security settings.

Setup

What puppetlabs-PostgreSQL affects:

• package/service/configuration files for PostgreSQL
• listened-to ports
• IP and mask (optional)

Introductory Questions

The postgresql module offers many security configuration settings. Before getting started, you will want to consider:

• Do you want/need to allow remote connections?
  • If yes, what about TCP connections?
• How restrictive do you want the database superuser's permissions to be?

Your answers to these questions will determine which of the module's parameters you'll want to specify values for.

###PE 3.2 supported module

PE 3.2 introduces Puppet Labs supported modules. The version of the postgresql module that ships within PE 3.2 is supported via normal Puppet Enterprise support channels. If you would like to access the supported module version, you will need to uninstall the shipped module and install the supported version from the Puppet Forge. You can do this by first running

# puppet module uninstall puppetlabs-postgresql

and then running

# puppet module install puppetlabs/postgresql

###Configuring the server

The main configuration you'll need to do will be around the postgresql::server class. The default parameters are reasonable, but fairly restrictive regarding permissions for who can connect and from where. To manage a PostgreSQL server with sane defaults:

class { 'postgresql::server': }

For a more customized configuration:

class { 'postgresql::server':
  ip_mask_deny_postgres_user => '0.0.0.0/32',
  ip_mask_allow_all_users    => '0.0.0.0/0',
  listen_addresses           => '*',
  ipv4acls                   => ['hostssl all johndoe 192.168.0.0/24 cert'],
  postgres_password          => 'TPSrep0rt!',
}

Once you've completed your configuration of postgresql::server, you can test out your settings from the command line:

$ psql -h localhost -U postgres
$ psql -h my.postgres.server -U

If you get an error message from these commands, it means that your permissions are set in a way that restricts access from where you're trying to connect. That might be a good thing or a bad thing, depending on your goals.

For more details about server configuration parameters consult the PostgreSQL Runtime Configuration docs.

Usage

###Creating a database

There are many ways to set up a postgres database using the postgresql::server::db class. For instance, to set up a database for PuppetDB:

class { 'postgresql::server': }

postgresql::server::db { 'mydatabasename':
  user     => 'mydatabaseuser',
  password => postgresql_password('mydatabaseuser', 'mypassword'),
}

###Managing users, roles and permissions

To manage users, roles and permissions:

class { 'postgresql::server': }

postgresql::server::role { 'marmot':
  password_hash => postgresql_password('marmot', 'mypasswd'),
}

postgresql::server::database_grant { 'test1':
  privilege => 'ALL',
  db        => 'test1',
  role      => 'marmot',
}

postgresql::server::table_grant { 'my_table of test2':
  privilege => 'ALL',
  table     => 'my_table',
  db        => 'test2',
  role      => 'marmot',
}

In this example, you would grant ALL privileges on the test1 database and on the my_table table of the test2 database to the user or group specified by dan.

At this point, you would just need to plunk these database name/username/password values into your PuppetDB config files, and you are good to go.

Reference

The postgresql module comes with many options for configuring the server. While you are unlikely to use all of the below settings, they allow you a decent amount of control over your security settings.

Classes:

• postgresql::client
• postgresql::globals
• postgresql::lib::devel
• postgresql::lib::java
• postgresql::lib::perl
• postgresql::lib::python
• postgresql::server
• postgresql::server::plperl
• postgresql::server::contrib
• postgresql::server::postgis

Resources:

• postgresql::server::config_entry
• postgresql::server::db
• postgresql::server::database
• postgresql::server::database_grant
• postgresql::server::extension
• postgresql::server::pg_hba_rule
• postgresql::server::pg_ident_rule
• postgresql::server::role
• postgresql::server::schema
• postgresql::server::table_grant
• postgresql::server::tablespace
• postgresql::validate_db_connection

Functions:

• postgresql_password
• postgresql_acls_to_resources_hash

###Class: postgresql::globals Note: most server specific defaults should be overriden in the postgresql::server class. This class should only be used if you are using a non-standard OS or if you are changing elements such as version or manage_package_repo that can only be changed here.

This class allows you to configure the main settings for this module in a global way, to be used by the other classes and defined resources. On its own it does nothing.

For example, if you wanted to overwrite the default locale and encoding for all classes you could use the following combination:

class { 'postgresql::globals':
  encoding => 'UTF-8',
  locale   => 'en_US.UTF-8',
}->
class { 'postgresql::server':
}

That would make the encoding and locale the default for all classes and defined resources in this module.

If you want to use the upstream PostgreSQL packaging, and be specific about the version you wish to download, you could use something like this:

class { 'postgresql::globals':
  manage_package_repo => true,
  version             => '9.2',
}->
class { 'postgresql::server': }

####client_package_name This setting can be used to override the default postgresql client package name. If not specified, the module will use whatever package name is the default for your OS distro.

####server_package_name This setting can be used to override the default postgresql server package name. If not specified, the module will use whatever package name is the default for your OS distro.

####contrib_package_name This setting can be used to override the default postgresql contrib package name. If not specified, the module will use whatever package name is the default for your OS distro.

####devel_package_name This setting can be used to override the default postgresql devel package name. If not specified, the module will use whatever package name is the default for your OS distro.

####java_package_name This setting can be used to override the default postgresql java package name. If not specified, the module will use whatever package name is the default for your OS distro.

####perl_package_name This setting can be used to override the default postgresql Perl package name. If not specified, the module will use whatever package name is the default for your OS distro.

####plperl_package_name This setting can be used to override the default postgresql PL/perl package name. If not specified, the module will use whatever package name is the default for your OS distro.

####python_package_name This setting can be used to override the default postgresql Python package name. If not specified, the module will use whatever package name is the default for your OS distro.

####service_ensure This setting can be used to override the default postgresql service ensure status. If not specified, the module will use ensure instead.

####service_name This setting can be used to override the default postgresql service name. If not specified, the module will use whatever service name is the default for your OS distro.

####service_provider This setting can be used to override the default postgresql service provider. If not specified, the module will use whatever service provider is the default for your OS distro.

####service_status This setting can be used to override the default status check command for your PostgreSQL service. If not specified, the module will use whatever service status is the default for your OS distro.

####default_database This setting is used to specify the name of the default database to connect with. On most systems this will be "postgres".

####initdb_path Path to the initdb command.

####createdb_path Path to the createdb command.

####psql_path Path to the psql command.

####pg_hba_conf_path Path to your pg\_hba.conf file.

####pg_ident_conf_path Path to your pg\_ident.conf file.

####postgresql_conf_path Path to your postgresql.conf file.

####pg_hba_conf_defaults If false, disables the defaults supplied with the module for pg\_hba.conf. This is useful if you disagree with the defaults and wish to override them yourself. Be sure that your changes of course align with the rest of the module, as some access is required to perform basic psql operations for example.

####datadir This setting can be used to override the default postgresql data directory for the target platform. If not specified, the module will use whatever directory is the default for your OS distro. Please note that changing the datadir after installation will cause the server to come to a full stop before being able to make the change. For RedHat systems, the data directory must be labeled appropriately for SELinux. On Ubuntu, you need to explicitly set needs_initdb to true in order to allow Puppet to initialize the database in the new datadir (needs_initdb defaults to true on other systems).

Warning: If datadir is changed from the default, puppet will not manage purging of the original data directory, which will cause it to fail if the data directory is changed back to the original.

####confdir This setting can be used to override the default postgresql configuration directory for the target platform. If not specified, the module will use whatever directory is the default for your OS distro.

####bindir This setting can be used to override the default postgresql binaries directory for the target platform. If not specified, the module will use whatever directory is the default for your OS distro.

####xlogdir This setting can be used to override the default postgresql xlog directory. If not specified the module will use initdb's default path.

####user This setting can be used to override the default postgresql super user and owner of postgresql related files in the file system. If not specified, the module will use the user name 'postgres'.

####group This setting can be used to override the default postgresql user group to be used for related files in the file system. If not specified, the module will use the group name 'postgres'.

####version The version of PostgreSQL to install/manage. This is a simple way of providing a specific version such as '9.2' or '8.4' for example.

Defaults to your operating system default.

####postgis_version The version of PostGIS to install if you install PostGIS. Defaults to the lowest available with the version of PostgreSQL to be installed.

####needs_initdb This setting can be used to explicitly call the initdb operation after server package is installed and before the postgresql service is started. If not specified, the module will decide whether to call initdb or not depending on your OS distro.

####encoding This will set the default encoding encoding for all databases created with this module. On certain operating systems this will be used during the template1 initialization as well so it becomes a default outside of the module as well. Defaults to the operating system default.

####locale This will set the default database locale for all databases created with this module. On certain operating systems this will be used during the template1 initialization as well so it becomes a default outside of the module as well. Defaults to undef which is effectively C.

#####Debian

On Debian you'll need to ensure that the 'locales-all' package is installed for full functionality of Postgres.

####manage_package_repo If true this will setup the official PostgreSQL repositories on your host. Defaults to false.

###Class: postgresql::server The following list are options that you can set in the config_hash parameter of postgresql::server.

####postgres_password This value defaults to undef, meaning the super user account in the postgres database is a user called postgres and this account does not have a password. If you provide this setting, the module will set the password for the postgres user to your specified value.

####package_name The name of the package to use for installing the server software. Defaults to the default for your OS distro.

####package_ensure Value to pass through to the package resource when creating the server instance. Defaults to undef.

####plperl_package_name This sets the default package name for the PL/Perl extension. Defaults to utilising the operating system default.

####service_manage This setting selects whether Puppet should manage the service. Defaults to true.

####service_name This setting can be used to override the default postgresql service name. If not specified, the module will use whatever service name is the default for your OS distro.

####service_provider This setting can be used to override the default postgresql service provider. If not specified, the module will use whatever service name is the default for your OS distro.

####service_reload This setting can be used to override the default reload command for your PostgreSQL service. If not specified, the module will the default reload command for your OS distro.

####service_status This setting can be used to override the default status check command for your PostgreSQL service. If not specified, the module will use whatever service name is the default for your OS distro.

####default_database This setting is used to specify the name of the default database to connect with. On most systems this will be "postgres".

####listen_addresses This value defaults to localhost, meaning the postgres server will only accept connections from localhost. If you'd like to be able to connect to postgres from remote machines, you can override this setting. A value of * will tell postgres to accept connections from any remote machine. Alternately, you can specify a comma-separated list of hostnames or IP addresses. (For more info, have a look at the postgresql.conf file from your system's postgres package).

####port This value defaults to 5432, meaning the postgres server will listen on TCP port 5432. Note that the same port number is used for all IP addresses the server listens on. Also note that for RedHat systems and early Debian systems, changing the port will cause the server to come to a full stop before being able to make the change.

####ip_mask_deny_postgres_user This value defaults to 0.0.0.0/0. Sometimes it can be useful to block the superuser account from remote connections if you are allowing other database users to connect remotely. Set this to an IP and mask for which you want to deny connections by the postgres superuser account. So, e.g., the default value of 0.0.0.0/0 will match any remote IP and deny access, so the postgres user won't be able to connect remotely at all. Conversely, a value of 0.0.0.0/32 would not match any remote IP, and thus the deny rule will not be applied and the postgres user will be allowed to connect.

####ip_mask_allow_all_users This value defaults to 127.0.0.1/32. By default, Postgres does not allow any database user accounts to connect via TCP from remote machines. If you'd like to allow them to, you can override this setting. You might set it to 0.0.0.0/0 to allow database users to connect from any remote machine, or 192.168.0.0/16 to allow connections from any machine on your local 192.168 subnet.

####ipv4acls List of strings for access control for connection method, users, databases, IPv4 addresses; see postgresql documentation about pg_hba.conf for information (please note that the link will take you to documentation for the most recent version of Postgres, however links for earlier versions can be found on that page).

####ipv6acls List of strings for access control for connection method, users, databases, IPv6 addresses; see postgresql documentation about pg_hba.conf for information (please note that the link will take you to documentation for the most recent version of Postgres, however links for earlier versions can be found on that page).

####initdb_path Path to the initdb command.

####createdb_path Path to the createdb command.

####psql_path Path to the psql command.

####pg_hba_conf_path Path to your pg\_hba.conf file.

####pg_ident_conf_path Path to your pg\_ident.conf file.

####postgresql_conf_path Path to your postgresql.conf file.

####pg_hba_conf_defaults If false, disables the defaults supplied with the module for pg\_hba.conf. This is useful if you di sagree with the defaults and wish to override them yourself. Be sure that your changes of course alig n with the rest of the module, as some access is required to perform basic psql operations for exam ple.

####user This setting can be used to override the default postgresql super user and owner of postgresql related files in the file system. If not specified, the module will use the user name 'postgres'.

####group This setting can be used to override the default postgresql user group to be used for related files in the file system. If not specified, the module will use the group name 'postgres'.

####needs_initdb This setting can be used to explicitly call the initdb operation after server package is installed and before the postgresql service is started. If not specified, the module will decide whether to call initdb or not depending on your OS distro.

####encoding This will set the default encoding encoding for all databases created with this module. On certain operating systems this will be used during the template1 initialization as well so it becomes a default outside of the module as well. Defaults to the operating system default.

####locale This will set the default database locale for all databases created with this module. On certain operating systems this will be used during the template1 initialization as well so it becomes a default outside of the module as well. Defaults to undef which is effectively C.

#####Debian

On Debian you'll need to ensure that the 'locales-all' package is installed for full functionality of Postgres.

####manage_pg_hba_conf This value defaults to true. Whether or not manage the pg_hba.conf. If set to true, puppet will overwrite this file. If set to false, puppet will not modify the file.

####manage_pg_ident_conf This value defaults to true. Whether or not manage the pg_ident.conf. If set to true, puppet will overwrite this file. If set to false, puppet will not modify the file.

###Class: postgresql::client

This class installs postgresql client software. Alter the following parameters if you have a custom version you would like to install (Note: don't forget to make sure to add any necessary yum or apt repositories if specifying a custom version):

####package_name The name of the postgresql client package.

####package_ensure The ensure parameter passed on to postgresql client package resource.

###Class: postgresql::server::contrib Installs the postgresql contrib package.

####package_name The name of the postgresql contrib package.

####package_ensure The ensure parameter passed on to postgresql contrib package resource.

###Class: postgresql::server::postgis Installs the postgresql postgis packages.

###Class: postgresql::lib::devel Installs the packages containing the development libraries for PostgreSQL and symlinks pg_config into /usr/bin (if not in /usr/bin or /usr/local/bin).

####package_ensure Override for the ensure parameter during package installation. Defaults to present.

####package_name Overrides the default package name for the distribution you are installing to. Defaults to postgresql-devel or postgresql<version>-devel depending on your distro.

####link_pg_config By default on all but Debian systems, if the bin directory used by the PostgreSQL package is not /usr/bin or /usr/local/bin, this class will symlink pg_config from the package's bin dir into /usr/bin. Set link_pg_config to false to disable this behavior.

###Class: postgresql::lib::java This class installs postgresql bindings for Java (JDBC). Alter the following parameters if you have a custom version you would like to install (Note: don't forget to make sure to add any necessary yum or apt repositories if specifying a custom version):

####package_name The name of the postgresql java package.

####package_ensure The ensure parameter passed on to postgresql java package resource.

###Class: postgresql::lib::perl This class installs the postgresql Perl libraries. For customer requirements you can customise the following parameters:

####package_name The name of the postgresql perl package.

####package_ensure The ensure parameter passed on to postgresql perl package resource.

###Class: postgresql::lib::python This class installs the postgresql Python libraries. For customer requirements you can customise the following parameters:

####package_name The name of the postgresql python package.

####package_ensure The ensure parameter passed on to postgresql python package resource.

###Class: postgresql::server::plperl This class installs the PL/Perl procedural language for postgresql.

####package_name The name of the postgresql PL/Perl package.

####package_ensure The ensure parameter passed on to postgresql PL/Perl package resource.

###Resource: postgresql::server::config_entry This resource can be used to modify your postgresql.conf configuration file.

Each resource maps to a line inside your postgresql.conf file, for example:

postgresql::server::config_entry { 'check_function_bodies':
  value => 'off',
}

####namevar Name of the setting to change.

####ensure Set to absent to remove an entry.

####value Value for the setting.

###Resource: postgresql::server::db This is a convenience resource that creates a database, user and assigns necessary permissions in one go.

For example, to create a database called test1 with a corresponding user of the same name, you can use:

postgresql::server::db { 'test1':
  user     => 'test1',
  password => 'test1',
}

####namevar The namevar for the resource designates the name of the database.

####comment A comment to be stored about the database using the PostgreSQL COMMENT command.

####dbname The name of the database to be created. Defaults to namevar.

####owner Name of the database user who should be set as the owner of the database. Defaults to the $user variable set in postgresql::server or postgresql::globals.

####user User to create and assign access to the database upon creation. Mandatory.

####password Password for the created user. Mandatory.

####encoding Override the character set during creation of the database. Defaults to the default defined during installation.

####locale Override the locale during creation of the database. Defaults to the default defined during installation.

####grant Grant permissions during creation. Defaults to ALL.

####tablespace The name of the tablespace to allocate this database to. If not specifies, it defaults to the PostgreSQL default.

####template The name of the template database from which to build this database. Defaults to template0.

####istemplate Define database as a template. Defaults to false.

###Resource: postgresql::server::database This defined type can be used to create a database with no users and no permissions, which is a rare use case.

####namevar The name of the database to create.

####dbname The name of the database, defaults to the namevar.

####owner Name of the database user who should be set as the owner of the database. Defaults to the $user variable set in postgresql::server or postgresql::globals.

####tablespace Tablespace for where to create this database. Defaults to the defaults defined during PostgreSQL installation.

####template The name of the template database from which to build this database. Defaults to template0.

####encoding Override the character set during creation of the database. Defaults to the default defined during installation.

####locale Override the locale during creation of the database. Defaults to the default defined during installation.

####istemplate Define database as a template. Defaults to false.

###Resource: postgresql::server::database_grant This defined type manages grant based access privileges for users, wrapping the postgresql::server::database_grant for database specific permissions. Consult the PostgreSQL documentation for grant for more information.

####namevar Used to uniquely identify this resource, but functionality not used during grant.

####privilege Can be one of SELECT, TEMPORARY, TEMP, CONNECT. ALL is used as a synonym for CREATE. If you need to add multiple privileges, a space delimited string can be used.

####db Database to grant access to.

####role Role or user whom you are granting access for.

####psql_db Database to execute the grant against. This should not ordinarily be changed from the default, which is postgres.

####psql_user OS user for running psql. Defaults to the default user for the module, usually postgres.

###Resource: postgresql::server::extension Manages a postgresql extension.

####database The database on which to activate the extension.

####ensure Whether to activate (present) or deactivate (absent) the extension.

####package_name If provided, this will install the given package prior to activating the extension.

####package_ensure By default, the package specified with package_name will be installed when the extension is activated, and removed when the extension is deactivated. You can override this behavior by setting the ensure value for the package.

###Resource: postgresql::server::pg_hba_rule This defined type allows you to create an access rule for pg_hba.conf. For more details see the PostgreSQL documentation.

For example:

postgresql::server::pg_hba_rule { 'allow application network to access app database':
  description => "Open up postgresql for access from 200.1.2.0/24",
  type => 'host',
  database => 'app',
  user => 'app',
  address => '200.1.2.0/24',
  auth_method => 'md5',
}

This would create a ruleset in pg_hba.conf similar to:

# Rule Name: allow application network to access app database
# Description: Open up postgresql for access from 200.1.2.0/24
# Order: 150
host  app  app  200.1.2.0/24  md5

####namevar A unique identifier or short description for this rule. The namevar doesn't provide any functional usage, but it is stored in the comments of the produced pg_hba.conf so the originating resource can be identified.

####description A longer description for this rule if required. Defaults to none. This description is placed in the comments above the rule in pg_hba.conf.

####type The type of rule, this is usually one of: local, host, hostssl or hostnossl.

####database A comma separated list of databases that this rule matches.

####user A comma separated list of database users that this rule matches.

####address If the type is not 'local' you can provide a CIDR based address here for rule matching.

####auth_method The auth_method is described further in the pg_hba.conf documentation, but it provides the method that is used for authentication for the connection that this rule matches.

####auth_option For certain auth_method settings there are extra options that can be passed. Consult the PostgreSQL pg_hba.conf documentation for further details.

####order An order for placing the rule in pg_hba.conf. Defaults to 150.

####target This provides the target for the rule, and is generally an internal only property. Use with caution.

###Resource: postgresql::server::pg_ident_rule This defined type allows you to create user name maps for pg_ident.conf. For more details see the PostgreSQL documentation.

For example:

postgresql::server::pg_ident_rule{ 'Map the SSL certificate of the backup server as a replication user':
  map_name          => 'sslrepli',
  system_username   => 'repli1.example.com',
  database_username => 'replication',
}

This would create a user name map in pg_ident.conf similar to:

# Rule Name: Map the SSL certificate of the backup server as a replication user
# Description: none
# Order: 150
sslrepli	repli1.example.com	replication

####namevar A unique identifier or short description for this rule. The namevar doesn't provide any functional usage, but it is stored in the comments of the produced pg_ident.conf so the originating resource can be identified.

####description A longer description for this rule if required. Defaults to none. This description is placed in the comments above the rule in pg_ident.conf.

####map_name Name of the user map, that is used to refer to this mapping in pg_hba.conf.

####system_username Operating system user name, the user name used to connect to the database.

####database_username Database user name, the user name of the the database user. The system_username will be mapped to this user name.

####order An order for placing the mapping in pg_ident.conf. Defaults to 150.

####target This provides the target for the rule, and is generally an internal only property. Use with caution.

###Resource: postgresql::server::role This resource creates a role or user in PostgreSQL.

####namevar The role name to create.

####password_hash The hash to use during password creation. If the password is not already pre-encrypted in a format that PostgreSQL supports, use the postgresql_password function to provide an MD5 hash here, for example:

postgresql::server::role { "myusername":
  password_hash => postgresql_password('myusername', 'mypassword'),
}

####createdb Whether to grant the ability to create new databases with this role. Defaults to false.

####createrole Whether to grant the ability to create new roles with this role. Defaults to false.

####login Whether to grant login capability for the new role. Defaults to true.

####inherit Whether to grant inherit capability for the new role. Defaults to true.

####superuser Whether to grant super user capability for the new role. Defaults to false.

####replication If true provides replication capabilities for this role. Defaults to false.

####connection_limit Specifies how many concurrent connections the role can make. Defaults to -1 meaning no limit.

####username The username of the role to create, defaults to namevar.

###Resource: postgresql::server::schema This defined type can be used to create a schema. For example:

postgresql::server::schema { 'isolated':
  owner => 'jane',
  db    => 'janedb',
}

It will create the schema isolated in the database janedb if neccessary, assigning the user jane ownership permissions.

####namevar The schema name to create.

###db Name of the database in which to create this schema. This must be passed.

####owner The default owner of the schema.

####schema Name of the schma. Defaults to namevar.

###Resource: postgresql::server::table_grant This defined type manages grant based access privileges for users. Consult the PostgreSQL documentation for grant for more information.

####namevar Used to uniquely identify this resource, but functionality not used during grant.

####privilege Can be one of SELECT, INSERT, UPDATE, REFERENCES. ALL is used as a synonym for CREATE. If you need to add multiple privileges, a space delimited string can be used.

####table Table to grant access on.

####db Database of table.

####role Role or user whom you are granting access for.

####psql_db Database to execute the grant against. This should not ordinarily be changed from the default, which is postgres.

####psql_user OS user for running psql. Defaults to the default user for the module, usually postgres.

###Resource: postgresql::server::tablespace This defined type can be used to create a tablespace. For example:

postgresql::server::tablespace { 'tablespace1':
  location => '/srv/space1',
}

It will create the location if necessary, assigning it the same permissions as your PostgreSQL server.

####namevar The tablespace name to create.

####location The path to locate this tablespace.

####owner The default owner of the tablespace.

####spcname Name of the tablespace. Defaults to namevar.

###Resource: postgresql::validate_db_connection This resource can be utilised inside composite manifests to validate that a client has a valid connection with a remote PostgreSQL database. It can be ran from any node where the PostgreSQL client software is installed to validate connectivity before commencing other dependent tasks in your Puppet manifests, so it is often used when chained to other tasks such as: starting an application server, performing a database migration.

Example usage:

postgresql::validate_db_connection { 'validate my postgres connection':
  database_host           => 'my.postgres.host',
  database_username       => 'mydbuser',
  database_password       => 'mydbpassword',
  database_name           => 'mydbname',
}->
exec { 'rake db:migrate':
  cwd => '/opt/myrubyapp',
}

####namevar Uniquely identify this resource, but functionally does nothing.

####database_host The hostname of the database you wish to test. Defaults to 'undef' which generally uses the designated local unix socket.

####database_port Port to use when connecting. Default to 'undef' which generally defaults to 5432 depending on your PostgreSQL packaging.

####database_name The name of the database you wish to test. Defaults to 'postgres'.

####database_username Username to connect with. Defaults to 'undef', which when using a unix socket and ident auth will be the user you are running as. If the host is remote you must provide a username.

####database_password Password to connect with. Can be left blank, but that is not recommended.

####run_as The user to run the psql command with for authenticiation. This is important when trying to connect to a database locally using Unix sockets and ident authentication. It is not needed for remote testing.

####sleep Upon failure, sets the number of seconds to sleep for before trying again.

####tries Upon failure, sets the number of attempts before giving up and failing the resource.

####create_db_first This will ensure the database is created before running the test. This only really works if your test is local. Defaults to true.

###Function: postgresql_password If you need to generate a postgres encrypted password, use postgresql_password. You can call it from your production manifests if you don't mind them containing the clear text versions of your passwords, or you can call it from the command line and then copy and paste the encrypted password into your manifest:

$ puppet apply --execute 'notify { "test": message => postgresql_password("username", "password") }'

###Function: postgresql_acls_to_resources_hash(acl_array, id, order_offset) This internal function converts a list of pg_hba.conf based acls (passed in as an array of strings) to a format compatible with the postgresql::pg_hba_rule resource.

This function should only be used internally by the module.

Limitations

Works with versions of PostgreSQL from 8.1 through 9.2.

Current it is only actively tested with the following operating systems:

• Debian 6.x and 7.x
• Centos 5.x, 6.x, and 7.x.
• Ubuntu 10.04 and 12.04, 14.04

Although patches are welcome for making it work with other OS distros, it is considered best effort.

Postgis support

Postgis is currently considered an unsupported feature as it doesn't work on all platforms correctly.

All versions of RHEL/Centos

If you have selinux enabled you must add any custom ports you use to the postgresql_port_t context. You can do this as follows:

# semanage port -a -t postgresql_port_t -p tcp $customport

Development

Puppet Labs modules on the Puppet Forge are open projects, and community contributions are essential for keeping them great. We can't access the huge number of platforms and myriad of hardware, software, and deployment configurations that Puppet is intended to serve.

We want to keep it as easy as possible to contribute changes so that our modules work in your environment. There are a few guidelines that we need contributors to follow so that we can have a chance of keeping on top of things.

You can read the complete module contribution guide on the Puppet Labs wiki.

Tests

There are two types of tests distributed with the module. Unit tests with rspec-puppet and system tests using rspec-system.

For unit testing, make sure you have:

• rake
• bundler

Install the necessary gems:

bundle install --path=vendor

And then run the unit tests:

bundle exec rake spec

The unit tests are ran in Travis-CI as well, if you want to see the results of your own tests register the service hook through Travis-CI via the accounts section for your Github clone of this project.

If you want to run the system tests, make sure you also have:

• vagrant > 1.2.x
• Virtualbox > 4.2.10

Then run the tests using:

bundle exec rspec spec/acceptance

To run the tests on different operating systems, see the sets available in .nodeset.yml and run the specific set with the following syntax:

RSPEC_SET=debian-607-x64 bundle exec rspec spec/acceptance

Transfer Notice

This Puppet module was originally authored by Inkling Systems. The maintainer preferred that Puppet Labs take ownership of the module for future improvement and maintenance as Puppet Labs is using it in the PuppetDB module. Existing pull requests and issues were transferred over, please fork and continue to contribute here instead of Inkling.

Previously: https://github.com/inkling/puppet-postgresql

Contributors

• Andrew Moon
• Kenn Knowles (@kennknowles)
• Adrien Thebo
• Albert Koch
• Andreas Ntaflos
• Bret Comnes
• Brett Porter
• Chris Price
• dharwood
• Etienne Pelletier
• Florin Broasca
• Henrik
• Hunter Haugen
• Jari Bakken
• Jordi Boggiano
• Ken Barber
• nzakaria
• Richard Arends
• Spenser Gilliland
• stormcrow
• William Van Hevelingen