Creating a ansible playbook for getting the apache status and want to display just the status - linux

Question

I have written an Ansible playbook which is as follows, but the problem it shows the status as disabled when i launch the playbook and when i check the same on my ubuntu server manually for the server status it shows active.
Please help and suggest what mistake I am doing in writing the playbook .
Note :- My goal is to get the status of the apache server {that is it in started or stopped status} and either print on the screen or append it in some abc.txt file and it should works every-time and update the abc.txt file with the status
testfile.yml
---
-
name: "To check if the apache is running or not"
hosts: webserver1
become: yes
tasks:
- name: Check Apache2 service status
service:
name: apache2
state: started
register: apache2_status
# - name: apache2 status
# command: service apache2 status
# register: apache2_status
- name: Print Apache2 service status
debug:
msg: "Apache2 service is {{ 'started' if apache2_status.status == 'started' else 'stopped' }}"
Running the following ansible command to run the playbook
ansible-playbook testfile.yml -i inventory --ask-become-pass
output
PLAY [To check if the apache is running or not] ********************************************************************************
TASK [Gathering Facts] *********************************************************************************************************
ok: [webserver1]
TASK [Check Apache2 service status] ********************************************************************************************
ok: [webserver1]
TASK [Print Apache2 service status] ********************************************************************************************
ok: [webserver1] => {
"msg": "Apache2 service is stopped"
}
PLAY RECAP *********************************************************************************************************************
webserver1 : ok=3 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
And When I check the same manually on my ubuntu webserver1
ubuntu#ubuntu1:~$ service apache2 status
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2022-12-31 08:56:30 UTC; 5h 28min ago
Docs: https://httpd.apache.org/docs/2.4/
Process: 632 ExecStart=/usr/sbin/apachectl start (code=exited, status=0/SUCCESS)
Main PID: 708 (apache2)
Tasks: 55 (limit: 1695)
Memory: 7.5M
CPU: 2.724s
CGroup: /system.slice/apache2.service
├─708 /usr/sbin/apache2 -k start
├─713 /usr/sbin/apache2 -k start
└─714 /usr/sbin/apache2 -k start
Dec 31 08:56:29 ubuntu1 systemd[1]: Starting The Apache HTTP Server...
Dec 31 08:56:30 ubuntu1 apachectl[685]: AH00558: apache2: Could not reliably determine the server's fully qualified domain name,>
Dec 31 08:56:30 ubuntu1 systemd[1]: Started The Apache HTTP Server.
I have tried to run the Ansible playbook with different parameters but not able to replicate my expected output
What my expecting is My goal is to get the status of the apache server {that is it in started or stopped status ?} and either print on the screen or append it in some abc.txt file and it should works every-time and update the abc.txt file with the new status

Answer 1

For example, given the inventory
shell> cat hosts
[webservers]
webserver1 ansible_host=10.1.0.74
[webservers:vars]
ansible_connection=ssh
ansible_user=admin
ansible_become=yes
ansible_become_user=root
ansible_become_method=sudo
ansible_python_interpreter=/bin/python3.6
The playbook below in the first task makes sure the web server is running. The second task collects the status of all services. The third task writes the status to a file at the controller
- name: Get status of webserver and append the new status to file
hosts: webservers
tasks:
- name: Start lighttpd if not running already
service:
name: lighttpd
state: started
register: status
- debug:
var: status.state
- name:
service_facts:
- debug:
var: ansible_facts.services['lighttpd.service']
- lineinfile:
create: true
path: /tmp/webservers.status
line: "{{ '%Y-%m-%d %H:%M:%S'|strftime }} {{ item }} {{ s.state }} {{ s.status }}"
loop: "{{ ansible_play_hosts }}"
run_once: true
delegate_to: localhost
vars:
s: "{{ hostvars[item].ansible_facts.services['lighttpd.service'] }}"
gives
PLAY [Get status of webserver and append the new status to file] *****************************
TASK [Start lighttpd if not running already] *************************************************
ok: [webserver1]
TASK [debug] *********************************************************************************
ok: [webserver1] =>
status.state: started
TASK [service_facts] *************************************************************************
ok: [webserver1]
TASK [debug] *********************************************************************************
ok: [webserver1] =>
ansible_facts.services['lighttpd.service']:
name: lighttpd.service
source: systemd
state: running
status: disabled
TASK [lineinfile] ****************************************************************************
changed: [webserver1 -> localhost] => (item=webserver1)
PLAY RECAP ***********************************************************************************
webserver1: ok=5 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
and appends the status of the webserver(s) to the file
shell> cat /tmp/webservers.status
2023-01-01 01:03:15 webserver1 running disabled
2023-01-01 01:03:32 webserver1 running disabled

Answer 2

I'm pretty sure your problem is that you want to check the state, but you are effectively checking whether the service is enabled or not.
(ie a service can be currently running but not enabled, and even though your service is enabled, it is not specified in ansible, and it is not collecting that for you)
I'd suggest using systemd instead of service like this. Set the status to started, but in check mode. The module won't actually do anything, but it will set "changed" to true if a change needed to be made.
This is more Ansible-ish in my opinion than calling a shell command.
(I tested this on Fedora -- adjust the service name as you need to.)
---
- hosts: localhost
tasks:
- name: check if apache is running
ansible.builtin.systemd:
# on Ubuntu, I think this is apache2
name: httpd
state: started
register: httpd_status
check_mode: true
- name: debug
ansible.builtin.debug:
msg: "Apache2 service is {{ httpd_status.changed | ternary('stopped','started') }}"