Ansible : Use Playbook#32015/04/22 |
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To use "when", "failed_when", it's possible to write branch condition in Ansible Playbook.
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| [1] | For example, create a Playbook which only if it does not exist "/var/www/html/index.html", create it on target hosts. |
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[cent@dlp ~]$
vi playbook_sample.yml # set boolean with failed_when # create "index.html" if result of boolean is "1"
- hosts: target_servers
become: yes
become_method: sudo
tasks:
- name: index file exists or not
shell: test -f /var/www/html/index.html
ignore_errors: true
register: file_exists
failed_when: file_exists.rc not in [0, 1]
- name: put index.html
shell: echo "httpd index" > /var/www/html/index.html
when: file_exists.rc == 1
ansible-playbook playbook_sample.yml --ask-become-pass SUDO password: PLAY [target_servers] ********************************************************* GATHERING FACTS *************************************************************** ok: [10.0.0.52] ok: [10.0.0.51] TASK: [index file exists or not] ********************************************** changed: [10.0.0.52] changed: [10.0.0.51] TASK: [put index.html] ******************************************************** skipping: [10.0.0.52] changed: [10.0.0.51] PLAY RECAP ******************************************************************** 10.0.0.51 : ok=3 changed=2 unreachable=0 failed=0 10.0.0.52 : ok=2 changed=1 unreachable=0 failed=0 |
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