'How to declare a variable for service_facts

Below is the sample ansible playbook I use to check the service status using service_facts module and it worked well. Here I need support to define the service name as variable, but when I define it is giving error, VARIABLE NOT DEFINED:

---
- name: Check service status
  hosts: all
  gather_facts: no
  tasks:
    - name: Service Facts
      service_facts:

    - debug:
        var: ansible_facts.services['firewalld.service']['status']

I need "firewalld.service" to be declared under vars section below tasks, tried various options but it is not giving the expected output. I tried below option but it is not working.

---
- name: Check service status
  hosts: all
  gather_facts: no
  vars:
    - SERVICE: firewalld.service
  tasks:
    - name: Service Facts
      service_facts:

    - debug:
        var: ansible_facts.services[SERVICE]['status']

Solution 1:^[1]

You can run some tasks using conditionals, for example:

    - name: Get service_facts
    service_facts:

    - name: Open some port
    firewalld:
        port: "{{ some_port }}/tcp"
        permanent: yes
        immediate: yes
        offline: no
        state: enabled
    when: 
        - ansible_facts.services['firewalld.service'].state == 'running'
        - ansible_facts.services['firewalld.service'].status == 'enabled'

Solution 2:^[2]

A specific service can be available under service_facts only if it exists. If you like to perform tasks on a service of which you don't know if it is there the already mentioned Conditionals may work.

- name: Gathering Service Facts
  service_facts:
  tags: remove,stop,disable

- name: Make sure {{ SERVICE }} is stopped and disabled
  systemd:
    name: {{ SERVICE }}
    state: stopped
    enabled: no
  when: ("{{ SERVICE }}" in services)
  tags: remove,stop,disable

- name: Make sure {{ SERVICE }} is removed
  yum:
    name: {{ SERVICE }}
    state: absent
  tags: remove

In respect to the comment I like to add that you can do something like

- name: Set facts
  set_fact:
    SERVICE: "firewalld.service" # or "postgresql-10.service" for my working test environment
  tags: facts

- name: Gathering service facts
  service_facts:
  tags: facts

- name: Get facts
  debug:
    msg:
      - "{{ ansible_facts.services[SERVICE].status }}"
  tags: facts

but take note that you would get an error

The task includes an option with an undefined variable. The error was: 'dict object' has no attribute u'firewalld.service'

if there is no such service firewalld installed on the system.

Solution 3:^[3]

To answer your main question: vars expects a dict, not a list:

---
- name: Check service status
  hosts: all
  gather_facts: no
  vars:
    SERVICE: firewalld.service
  tasks:
    - name: Service Facts
      service_facts:

    - debug:
        msg: "{{ services[SERVICE]['status'] }}"

Additionally you need to use debug:msg as others have already mentioned.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	Temirlan Bolurov
Solution 2
Solution 3	DaDummy

'How to declare a variable for service_facts

Solution 1:[1]

Solution 2:[2]

Solution 3:[3]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]

Solution 3:^[3]