interfaces_file – Tweak settings in /etc/network/interfaces files
interfaces_file – Tweak settings in /etc/network/interfaces files
New in version 2.4.
Synopsis
- Manage (add, remove, change) individual interface options in an interfaces-style file without having to manage the file as a whole with, say, template or assemble. Interface has to be presented in a file.
- Read information about interfaces from interfaces-styled files
Parameters
Parameter | Choices/Defaults | Comments |
---|---|---|
attributes - added in 2.3 |
Attributes the file or directory should have. To get supported flags look at the man page for chattr on the target system. This string should contain the attributes in the same order as the one displayed by lsattr.
| |
backup boolean |
|
Create a backup file including the timestamp information so you can get the original file back if you somehow clobbered it incorrectly. |
dest - |
Default: "/etc/network/interfaces" |
Path to the interfaces file |
group - |
Name of the group that should own the file/directory, as would be fed to chown. | |
iface - |
Name of the interface, required for value changes or option remove | |
mode - |
Mode the file or directory should be. For those used to /usr/bin/chmod remember that modes are actually octal numbers. You must either add a leading zero so that Ansible's YAML parser knows it is an octal number (like | |
option - |
Name of the option, required for value changes or option remove | |
owner - |
Name of the user that should own the file/directory, as would be fed to chown. | |
selevel - |
Default: "s0" |
Level part of the SELinux file context. This is the MLS/MCS attribute, sometimes known as the |
serole - |
Role part of SELinux file context, | |
setype - |
Type part of SELinux file context, | |
seuser - |
User part of SELinux file context. Will default to system policy, if applicable. If set to | |
state - |
|
If set to |
unsafe_writes boolean added in 2.2 |
|
By default this module uses atomic operations to prevent data corruption or inconsistent reads from the target files, but sometimes systems are configured or just broken in ways that prevent this. One example is docker mounted files, which cannot be updated atomically from inside the container and can only be written in an unsafe manner. This option allows Ansible to fall back to unsafe methods of updating files when atomic operations fail (however, it doesn't force Ansible to perform unsafe writes). IMPORTANT! Unsafe writes are subject to race conditions and can lead to data corruption. |
value - |
If option is not presented for the interface and state is |
Notes
Note
- If option is defined multiple times last one will be updated but all will be deleted in case of an absent state
Examples
# Set eth1 mtu configuration value to 8000
- interfaces_file:
dest: /etc/network/interfaces.d/eth1.cfg
iface: eth1
option: mtu
value: 8000
backup: yes
state: present
register: eth1_cfg
Return Values
Common return values are documented here, the following are the fields unique to this module:
Key | Returned | Description | |||
---|---|---|---|---|---|
dest string |
success |
destination file/path
Sample: /etc/network/interfaces | |||
ifaces complex |
success |
interfaces dictionary
| |||
ifaces dictionary |
success |
interface dictionary
| |||
eth0 dictionary |
success |
Name of the interface
| |||
address_family string |
success |
interface address family
Sample: inet | |||
down list |
success |
list of
Sample: ['route del -net 10.10.10.0/24 gw 10.10.10.1 dev eth1', 'route del -net 10.10.11.0/24 gw 10.10.11.1 dev eth2'] | |||
method string |
success |
interface method
Sample: manual | |||
mtu string |
success |
other options, all values returned as strings
Sample: 1500 | |||
post-up list |
success |
list of
Sample: ['route add -net 10.10.10.0/24 gw 10.10.10.1 dev eth1', 'route add -net 10.10.11.0/24 gw 10.10.11.1 dev eth2'] | |||
pre-up list |
success |
list of
Sample: ['route add -net 10.10.10.0/24 gw 10.10.10.1 dev eth1', 'route add -net 10.10.11.0/24 gw 10.10.11.1 dev eth2'] | |||
up list |
success |
list of
Sample: ['route add -net 10.10.10.0/24 gw 10.10.10.1 dev eth1', 'route add -net 10.10.11.0/24 gw 10.10.11.1 dev eth2'] |
Status
- This module is guaranteed to have no backward incompatible interface changes going forward. [stableinterface]
- This module is maintained by the Ansible Community. [community]
Authors
- Roman Belyakovsky (@hryamzik)
© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.7/modules/interfaces_file_module.html