module-postgresql/manifests/config/beforeservice.pp
2013-02-27 12:14:13 +01:00

164 lines
6.5 KiB
Puppet

# Class: postgresql::config::beforeservice
#
# Parameters:
#
# [*ip_mask_deny_postgres_user*] - ip mask for denying remote access for postgres user; defaults to '0.0.0.0/0',
# meaning that all TCP access for postgres user is denied.
# [*ip_mask_allow_all_users*] - ip mask for allowing remote access for other users (besides postgres);
# defaults to '127.0.0.1/32', meaning only allow connections from localhost
# [*listen_addresses*] - what IP address(es) to listen on; comma-separated list of addresses; defaults to
# 'localhost', '*' = all
# [*ipv4acls*] - list of strings for access control for connection method, users, databases, IPv4
# addresses; see postgresql documentation about pg_hba.conf for information
# [*ipv6acls*] - list of strings for access control for connection method, users, databases, IPv6
# addresses; see postgresql documentation about pg_hba.conf for information
# [*pg_hba_conf_path*] - path to pg_hba.conf file
# [*postgresql_conf_path*] - path to postgresql.conf file
# [*manage_redhat_firewall*] - boolean indicating whether or not the module should open a port in the firewall on
# redhat-based systems; this parameter is likely to change in future versions. Possible
# changes include support for non-RedHat systems and finer-grained control over the
# firewall rule (currently, it simply opens up the postgres port to all TCP connections).
#
# Actions:
#
# Requires:
#
# Usage:
# This class is not intended to be used directly; it is
# managed by postgresl::config. It contains resources
# that should be handled *before* the postgres service
# has been started up.
#
# class { 'postgresql::config::before_service':
# ip_mask_allow_all_users => '0.0.0.0/0',
# }
#
class postgresql::config::beforeservice(
$pg_hba_conf_path,
$postgresql_conf_path,
$ip_mask_deny_postgres_user = $postgresql::params::ip_mask_deny_postgres_user,
$ip_mask_allow_all_users = $postgresql::params::ip_mask_allow_all_users,
$listen_addresses = $postgresql::params::listen_addresses,
$ipv4acls = $postgresql::params::ipv4acls,
$ipv6acls = $postgresql::params::ipv6acls,
$manage_redhat_firewall = $postgresql::params::manage_redhat_firewall
) inherits postgresql::params {
File {
owner => $postgresql::params::user,
group => $postgresql::params::group,
}
# Create the main pg_hba resource
postgresql::pg_hba { 'main':
notify => Exec['reload_postgresql'],
}
Postgresql::Pg_hba_rule {
database => 'all',
user => 'all',
}
# Lets setup the base rules
postgresql::pg_hba_rule { 'local access as postgres user':
type => 'local',
user => 'postgres',
auth_method => 'ident',
auth_option => $postgresql::params::version ? {
'8.1' => 'sameuser',
default => undef,
},
order => '001',
}
postgresql::pg_hba_rule { 'local access to database with same name':
type => 'local',
auth_method => 'ident',
auth_option => $postgresql::params::version ? {
'8.1' => 'sameuser',
default => undef,
},
order => '002',
}
postgresql::pg_hba_rule { 'deny access to postgresql user':
type => 'host',
user => 'postgres',
address => $ip_mask_deny_postgres_user,
auth_method => 'reject',
order => '003',
}
# ipv4acls are passed as an array of rule strings, here we transform them into
# a resources hash, and pass the result to create_resources
$ipv4acl_resources = postgresql_acls_to_resources_hash($ipv4acls, 'ipv4acls', 10)
create_resources('postgresql::pg_hba_rule', $ipv4acl_resources)
postgresql::pg_hba_rule { 'allow access to all users':
type => 'host',
address => $ip_mask_allow_all_users,
auth_method => 'md5',
order => '100',
}
postgresql::pg_hba_rule { 'allow access to ipv6 localhost':
type => 'host',
address => '::1/128',
auth_method => 'md5',
order => '101',
}
# ipv6acls are passed as an array of rule strings, here we transform them into
# a resources hash, and pass the result to create_resources
$ipv6acl_resources = postgresql_acls_to_resources_hash($ipv6acls, 'ipv6acls', 102)
create_resources('postgresql::pg_hba_rule', $ipv6acl_resources)
# We must set a "listen_addresses" line in the postgresql.conf if we
# want to allow any connections from remote hosts.
file_line { 'postgresql.conf#listen_addresses':
path => $postgresql_conf_path,
match => '^listen_addresses\s*=.*$',
line => "listen_addresses = '${listen_addresses}'",
notify => Service['postgresqld'],
}
# Here we are adding an 'include' line so that users have the option of
# managing their own settings in a second conf file. This only works for
# postgresql 8.2 and higher.
if(versioncmp($postgresql::params::version, '8.2') >= 0) {
# Since we're adding an "include" for this extras config file, we need
# to make sure it exists.
exec { "create_postgresql_conf_path":
command => "touch `dirname ${postgresql_conf_path}`/postgresql_puppet_extras.conf",
path => '/usr/bin:/bin',
unless => "[ -f `dirname ${postgresql_conf_path}`/postgresql_puppet_extras.conf ]"
}
file_line { 'postgresql.conf#include':
path => $postgresql_conf_path,
line => "include 'postgresql_puppet_extras.conf'",
require => Exec["create_postgresql_conf_path"],
notify => Service['postgresqld'],
}
}
# TODO: is this a reasonable place for this firewall stuff?
# TODO: figure out a way to make this not platform-specific; debian and ubuntu have
# an out-of-the-box firewall configuration that seems trickier to manage
# TODO: get rid of hard-coded port
if ($manage_redhat_firewall and $firewall_supported) {
exec { 'postgresql-persist-firewall':
command => $persist_firewall_command,
refreshonly => true,
}
Firewall {
notify => Exec['postgresql-persist-firewall']
}
firewall { '5432 accept - postgres':
port => '5432',
proto => 'tcp',
action => 'accept',
}
}
}