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Need to check the Single service status on multiple system using Ansible playbook , is there a way to do using service modules rather than shell module ?

ansible ansible-2.x ansible-facts

share|improve this question

asked Mar 27 at 18:44

The One KiKThe One KiK

1

add a comment | 

0

Need to check the Single service status on multiple system using Ansible playbook , is there a way to do using service modules rather than shell module ?

ansible ansible-2.x ansible-facts

share|improve this question

asked Mar 27 at 18:44

The One KiKThe One KiK

1

add a comment | 

Need to check the Single service status on multiple system using Ansible playbook , is there a way to do using service modules rather than shell module ?

ansible ansible-2.x ansible-facts

share|improve this question

asked Mar 27 at 18:44

The One KiKThe One KiK

1

share|improve this question

asked Mar 27 at 18:44

The One KiKThe One KiK

1

share|improve this question

asked Mar 27 at 18:44

The One KiKThe One KiK

1

asked Mar 27 at 18:44

The One KiKThe One KiK

1

asked Mar 27 at 18:44

The One KiKThe One KiK

1

1 Answer
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With the service module (and the related more specific modules like systemd) you can make sure that a service is in a desired state.

For example, the following task will enable apache start at boot if not already configured, start apache if it is stopped, and report change if any change was made or ok if no change was needed.

- name: Enable and start apache
 service:
 name: apache
 enabled: yes
 state: started

Simply checking the service status without any change is not supported by those modules. You will have to use the command line and analyse the output / return status.

example with systemd

- name: Check status of my service
 command: systemctl -q is-active my_service
 check_mode: no
 failed_when: false
 changed_when: false
 register: my_service_status

- name: Report status of my service
 debug:
 msg: "my_service is ternary('Up', 'Down') "

To be noted:

• 
  check_mode: no make the task run wether or not you use '--check' on ansible_playbook command line. Without this, in check mode, the next task will fail with an undefined variable.


• 
  failed_when: false refrains the task to fail when the return code is different from 0 (when the service is not started). You can be more specific by listing all the possible return code in normal conditions and failing when you get an other (e.g. failed_when: not (my_service_status in [0, 3, X]))


• 
  changed_when: false makes the task always report ok except of changed by default for command and shell module.

share|improve this answer

edited Mar 28 at 19:55

answered Mar 27 at 21:30

ZeitounatorZeitounator

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0

With the service module (and the related more specific modules like systemd) you can make sure that a service is in a desired state.

For example, the following task will enable apache start at boot if not already configured, start apache if it is stopped, and report change if any change was made or ok if no change was needed.

- name: Enable and start apache
 service:
 name: apache
 enabled: yes
 state: started

Simply checking the service status without any change is not supported by those modules. You will have to use the command line and analyse the output / return status.

example with systemd

- name: Check status of my service
 command: systemctl -q is-active my_service
 check_mode: no
 failed_when: false
 changed_when: false
 register: my_service_status

- name: Report status of my service
 debug:
 msg: "my_service is ternary('Up', 'Down') "

To be noted:

• 
  check_mode: no make the task run wether or not you use '--check' on ansible_playbook command line. Without this, in check mode, the next task will fail with an undefined variable.


• 
  failed_when: false refrains the task to fail when the return code is different from 0 (when the service is not started). You can be more specific by listing all the possible return code in normal conditions and failing when you get an other (e.g. failed_when: not (my_service_status in [0, 3, X]))


• 
  changed_when: false makes the task always report ok except of changed by default for command and shell module.

share|improve this answer

edited Mar 28 at 19:55

answered Mar 27 at 21:30

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

add a comment | 

0

With the service module (and the related more specific modules like systemd) you can make sure that a service is in a desired state.

For example, the following task will enable apache start at boot if not already configured, start apache if it is stopped, and report change if any change was made or ok if no change was needed.

- name: Enable and start apache
 service:
 name: apache
 enabled: yes
 state: started

Simply checking the service status without any change is not supported by those modules. You will have to use the command line and analyse the output / return status.

example with systemd

- name: Check status of my service
 command: systemctl -q is-active my_service
 check_mode: no
 failed_when: false
 changed_when: false
 register: my_service_status

- name: Report status of my service
 debug:
 msg: "my_service is ternary('Up', 'Down') "

To be noted:

• 
  check_mode: no make the task run wether or not you use '--check' on ansible_playbook command line. Without this, in check mode, the next task will fail with an undefined variable.


• 
  failed_when: false refrains the task to fail when the return code is different from 0 (when the service is not started). You can be more specific by listing all the possible return code in normal conditions and failing when you get an other (e.g. failed_when: not (my_service_status in [0, 3, X]))


• 
  changed_when: false makes the task always report ok except of changed by default for command and shell module.

share|improve this answer

edited Mar 28 at 19:55

answered Mar 27 at 21:30

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

add a comment | 

With the service module (and the related more specific modules like systemd) you can make sure that a service is in a desired state.

For example, the following task will enable apache start at boot if not already configured, start apache if it is stopped, and report change if any change was made or ok if no change was needed.

- name: Enable and start apache
 service:
 name: apache
 enabled: yes
 state: started

Simply checking the service status without any change is not supported by those modules. You will have to use the command line and analyse the output / return status.

example with systemd

- name: Check status of my service
 command: systemctl -q is-active my_service
 check_mode: no
 failed_when: false
 changed_when: false
 register: my_service_status

- name: Report status of my service
 debug:
 msg: "my_service is ternary('Up', 'Down') "

To be noted:

• 
  check_mode: no make the task run wether or not you use '--check' on ansible_playbook command line. Without this, in check mode, the next task will fail with an undefined variable.


• 
  failed_when: false refrains the task to fail when the return code is different from 0 (when the service is not started). You can be more specific by listing all the possible return code in normal conditions and failing when you get an other (e.g. failed_when: not (my_service_status in [0, 3, X]))


• 
  changed_when: false makes the task always report ok except of changed by default for command and shell module.

share|improve this answer

edited Mar 28 at 19:55

answered Mar 27 at 21:30

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

- name: Enable and start apache
 service:
 name: apache
 enabled: yes
 state: started

- name: Check status of my service
 command: systemctl -q is-active my_service
 check_mode: no
 failed_when: false
 changed_when: false
 register: my_service_status

- name: Report status of my service
 debug:
 msg: "my_service is ternary('Up', 'Down') "

share|improve this answer

edited Mar 28 at 19:55

answered Mar 27 at 21:30

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

answered Mar 27 at 21:30

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges

answered Mar 27 at 21:30

ZeitounatorZeitounator

2,43311 gold badge44 silver badges1919 bronze badges