Ansible Modules

 

inlinefile module:

Adding /Modify or delete a line inside of file.

Main parameter:

path - full path of the file

line - text

insertbefore / insertafter - EOF/regular expression

validate - Validation of command

state - Present/absent

mode/owner/group - permission

setype/seuser/selevel - SElinux setup

Ping Module:

It is validated the host reachability of remote host.

ansible.builtin.ping is a module name.

Reboot Module:

We can reboot a remote host through reboot module.

Main parameter of this reboot module as below:

reboot_timeout - 600

msg - text of reboot notification

reboot_command - define a reboot command depends up on OS

pre_reboot_delay - 0

Post_reboot_delay - 0

test_command - 'whoami'

boot_time_command - "cat /proc/sys/kernel/boot_id"

Copy Module:

Copy a file from one location to other location.

Main Parameters:

dest - Remote file path

src - local file path

fail_on_missing - yes / no

validate_checksum - yes /no

flat - yes/no

Service Module:

We can enable and disable the system services through this module.

ansible.builtin.service_facts

Main parameters:

name : Service name

state :  started, stopped, restarted, reloaded

enabled: yes/no

arguments/args : extra args

Package installation module:

Main parameters:

name - Name of the package

state - present/installed/absent/removed/latest

Create a file:

Main parameter:

path - file path

state - absent/directory/hard/link/touch

Module for a file permission change:

Main parameters:

Path - file path

owner - user

group - group

mode - rwx mode

state - file state [absent/directory/hard/link/touch]

setype/seuser/selevel - SElinux

Module for Download a file through Internet

Main parameters:

url - download URL

dest - destionation path

force - no/yes

checksum - checksum:URL

force_basic_auth/url_username/url_password/use_gssapi - HTTP basic auth/GSSAPI kerberos

headers - custom HTTP headers

http_agent - ansible-http-get

owner/group/mode - permission

setype/seuser/selevel - SElinux

Example:

---

 - name: Download an ansible package

   hosts: all

   become: false

   gather_facts: false

   vars: 

     myurl: "https://releases.ansible.com/ansible/ansible-2.9.25.tar.gz"

mycrc: "sha256:https://releases.ansible.com/ansible/ansible-2.9.25.tar.gz"

mydest: "/home/test/ansible-2.9.25.tar.gz"

   tasks:

     - name: downloading an ansible file

   ansible.builtin.get_url:

     url: "{{ myurl }}" 

desk: "{{ mydest }}"

checksum: "{{ mycrc }}"

mode: '0644'

owner: devops

group: wheel

Module for backing up the file

Main Parameters:

src - source path

dest - destionation path

archive - mirrors the rsync archive flag, enables recursive, links, perms, times, owner, group, flags 

rsync_opts - no/yes

Changed the line inside of file:

---

- name: search demo

  hosts: all

  vars:

    myfile: "/etc/ssh/sshd_config"

    myline: 'PasswordAuthentication no'

  become: true

  tasks:

    - name: string found

      ansible.builtin.lineinfile:

        name: "{{ myfile }]"

        line: "{{ myline }}"

        state: present

      check_mode: true

      register: conf

      failed_when:(conf is changed) or (conf is failed)