firewalld – Manage arbitrary ports/services with firewalld

Synopsis

  • This module allows for addition or deletion of services and ports (either TCP or UDP) in either running or permanent firewalld rules.

Requirements

The below requirements are needed on the host that executes this module.

  • firewalld >= 0.2.11

Parameters

Parameter Choices/Defaults Comments
icmp_block
string
added in 2.8
The ICMP block you would like to add/remove to/from a zone in firewalld.
icmp_block_inversion
string
added in 2.8
Enable/Disable inversion of ICMP blocks for a zone in firewalld.
immediate
boolean
    Choices:
  • no ←
  • yes
Should this configuration be applied immediately, if set as permanent.
interface
string
added in 2.1
The interface you would like to add/remove to/from a zone in firewalld.
masquerade
string
added in 2.1
The masquerade setting you would like to enable/disable to/from zones within firewalld.
offline
boolean
added in 2.3
    Choices:
  • no
  • yes
Whether to run this module even when firewalld is offline.
permanent
boolean
    Choices:
  • no
  • yes
Should this configuration be in the running firewalld configuration or persist across reboots.
As of Ansible 2.3, permanent operations can operate on firewalld configs when it is not running (requires firewalld >= 3.0.9).
Note that if this is no, immediate is assumed yes.
port
string
Name of a port or port range to add/remove to/from firewalld.
Must be in the form PORT/PROTOCOL or PORT-PORT/PROTOCOL for port ranges.
rich_rule
string
Rich rule to add/remove to/from firewalld.
service
string
Name of a service to add/remove to/from firewalld.
The service must be listed in output of firewall-cmd --get-services.
source
string
added in 2.0
The source/network you would like to add/remove to/from firewalld.
state
string / required
    Choices:
  • absent
  • disabled
  • enabled
  • present
Enable or disable a setting.
For ports: Should this port accept (enabled) or reject (disabled) connections.
The states present and absent can only be used in zone level operations (i.e. when no other parameters but zone and state are set).
timeout
integer
Default:
0
The amount of time the rule should be in effect for when non-permanent.
zone
string
The firewalld zone to add/remove to/from.
Note that the default zone can be configured per system but public is default from upstream.
Available choices can be extended based on per-system configs, listed here are "out of the box" defaults.
Possible values include block, dmz, drop, external, home, internal, public, trusted, work.

Notes

Note

  • Not tested on any Debian based system.

  • Requires the python2 bindings of firewalld, which may not be installed by default.

  • For distributions where the python2 firewalld bindings are unavailable (e.g Fedora 28 and later) you will have to set the ansible_python_interpreter for these hosts to the python3 interpreter path and install the python3 bindings.

  • Zone transactions (creating, deleting) can be performed by using only the zone and state parameters “present” or “absent”. Note that zone transactions must explicitly be permanent. This is a limitation in firewalld. This also means that you will have to reload firewalld after adding a zone that you wish to perform immediate actions on. The module will not take care of this for you implicitly because that would undo any previously performed immediate actions which were not permanent. Therefore, if you require immediate access to a newly created zone it is recommended you reload firewalld immediately after the zone creation returns with a changed state and before you perform any other immediate, non-permanent actions on that zone.

Examples

- firewalld:
    service: https
    permanent: yes
    state: enabled

- firewalld:
    port: 8081/tcp
    permanent: yes
    state: disabled

- firewalld:
    port: 161-162/udp
    permanent: yes
    state: enabled

- firewalld:
    zone: dmz
    service: http
    permanent: yes
    state: enabled

- firewalld:
    rich_rule: rule service name="ftp" audit limit value="1/m" accept
    permanent: yes
    state: enabled

- firewalld:
    source: 192.0.2.0/24
    zone: internal
    state: enabled

- firewalld:
    zone: trusted
    interface: eth2
    permanent: yes
    state: enabled

- firewalld:
    masquerade: yes
    state: enabled
    permanent: yes
    zone: dmz

- firewalld:
    zone: custom
    state: present
    permanent: yes

- firewalld:
    zone: drop
    state: present
    permanent: yes
    icmp_block_inversion: yes

- firewalld:
    zone: drop
    state: present
    permanent: yes
    icmp_block: echo-request

- name: Redirect port 443 to 8443 with Rich Rule
  firewalld:
    rich_rule: rule forward-port port=443 protocol=tcp to-port=8443
    zone: public
    permanent: yes
    immediate: yes
    state: enabled

Status

Authors

  • Adam Miller (@maxamillion)

Hint

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