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# Class: ferm
#
# @summary This class manages ferm installation and rule generation on modern linux systems
#
# @example deploy ferm without any configured rules, but also don't start the service or modify existing config files
# include ferm
#
# @example deploy ferm and start it, on nodes with only ipv6 enabled
# class{'ferm':
# manage_service => true,
# ip_versions => ['ip6'],
# }
#
# @example deploy ferm and don't touch chains from other software, like fail2ban and docker
# class{'ferm':
# manage_service => true,
# preserve_chains_in_tables => {
# 'filter' => [
# 'f2b-sshd',
# 'DOCKER',
# 'DOCKER-ISOLATION-STAGE-1',
# 'DOCKER-ISOLATION-STAGE-2',
# 'DOCKER-USER',
# ]
# }
# }
#
# @param manage_service Disable/Enable the management of the ferm daemon
# Default value: false
# Allowed values: (true|false)
# @param manage_configfile Disable/Enable the management of the ferm default config
# Default value: false
# Allowed values: (true|false)
# @param manage_initfile Disable/Enable the management of the ferm init script for RedHat-based OS
# Default value: false
# Allowed values: (true|false)
# @param configfile Path to the config file
# Default value: /etc/ferm.conf
# Allowed values: Stdlib::Absolutepath
# @param configdirectory Path to the directory where the module stores ferm configuration files
# Default value: /etc/ferm.d or /etc/ferm/ferm.d
# Allowed values: Stdlib::Absolutepath
# @param disable_conntrack Disable/Enable the generation of conntrack rules
# Default value: false
# Allowed values: (true|false)
# @param forward_policy Default policy for the FORWARD chain
# Default value: DROP
# Allowed values: (ACCEPT|DROP|REJECT)
# @param output_policy Default policy for the OUTPUT chain
# Default value: ACCEPT
# Allowed values: (ACCEPT|DROP|REJECT)
# @param input_policy Default policy for the INPUT chain
# Default value: DROP
# Allowed values: (ACCEPT|DROP|REJECT)
# @param rules A hash that holds all data for ferm::rule
# Default value: Empty Hash
# Allowed value: Any Hash
# @param forward_log_dropped_packets Enable/Disable logging in the FORWARD chain of packets to the kernel log, if no explicit chain matched
# Default value: false
# Allowed values: (true|false)
# @param output_log_dropped_packets Enable/Disable logging in the OUTPUT chain of packets to the kernel log, if no explicit chain matched
# Default value: false
# Allowed values: (true|false)
# @param input_log_dropped_packets Enable/Disable logging in the INPUT chain of packets to the kernel log, if no explicit chain matched
# Default value: false
# Allowed values: (true|false)
# @param ip_versions Set list of versions of ip we want ot use.
# Default value: ['ip', 'ip6']
# @param preserve_chains_in_tables Hash with table:chains[] to use ferm @preserve for
# Default value: Empty Hash
# Allowed values: Hash with a list of tables and chains in it to preserve
# Example: {'nat' => ['PREROUTING', 'POSTROUTING']}
class ferm (
Boolean $manage_service,
Boolean $manage_configfile,
Boolean $manage_initfile,
Stdlib::Absolutepath $configfile,
Stdlib::Absolutepath $configdirectory,
Boolean $disable_conntrack,
Ferm::Policies $forward_policy,
Ferm::Policies $output_policy,
Ferm::Policies $input_policy,
Boolean $forward_log_dropped_packets,
Boolean $output_log_dropped_packets,
Boolean $input_log_dropped_packets,
Hash $rules,
Array[Enum['ip','ip6']] $ip_versions,
Hash[String[1],Array[String[1]]] $preserve_chains_in_tables,
) {
contain ferm::install
contain ferm::config
contain ferm::service
Class['ferm::install']
-> Class['ferm::config']
~> Class['ferm::service']
$rules.each |$rulename, $attributes| {
ferm::rule{$rulename:
* => $attributes,
}
}
# import all exported resources with ferm rules for this node
Ferm::Rule <<| tag == $trusted['certname'] |>>
}
|
