At times one may want to run certain tasks or command only if certain conditions are met.<\/p>\n
For example add a user called “RedhatUser01” only if the managed node is a Redhat node. Similarly add a user named “centosUser01” only on CentOS managed nodes.<\/p>\n
Below is a playbook that uses conditions to achieve the above mentioned example.<\/p>\n
[root@centos9vm ~]#<\/strong> cat shijuplaybook.yml<\/p>\n ==== === tasks:<\/em> – name: Add a user in CentOS node<\/em> – name: Check distribution name<\/em> === ====<\/p>\n Now let us run the playbook<\/p>\n [root@centos9vm ~]#<\/strong> ansible-navigator run -m stdout shijuplaybook.yml<\/p>\n ===== ==<\/p>\n PLAY [shiju sample playbook] ***************************************************<\/em><\/p>\n TASK [Gathering Facts] *********************************************************<\/em> TASK [Add a user in Redhat] ****************************************************<\/em> TASK [Add a user in CentOS node] ***********************************************<\/em> TASK [Check distribution name] *************************************************<\/em> PLAY RECAP *********************************************************************<\/em> ===== =====<\/p>\n [root@centos9vm ~]#<\/strong> ssh 192.168.48.129 ‘tail -n 3 \/etc\/passwd’<\/p>\n ======= ========<\/p>\n","protected":false},"excerpt":{"rendered":"
\n– – –
\n– name: shiju sample playbook<\/em>
\n hosts: 192.168.48.129<\/em>
\n vars:<\/em>
\n theRHUser:<\/em>
\n RedhatUser01<\/em>
\n theCOSuser:<\/em>
\n centosUser01<\/em><\/p>\n
\n – name: Add a user in Redhat<\/em>
\n ansible.builtin.user:<\/em>
\n name: “{{ theRHUser }}”<\/em>
\n state:\u00a0present<\/em>
\n when: ansible_facts[‘distribution’] == “Redhat”<\/em><\/p>\n
\n ansible.builtin.user:<\/em>
\n name: “{{ theCOSuser }}”<\/em>
\n state:\u00a0present<\/em>
\n when: ansible_facts[‘distribution’] == “CentOS”<\/em><\/p>\n
\n ansible.builtin.debug:<\/em>
\n var: ansible_facts[‘distribution’]<\/em><\/p>\n
\nok: [192.168.48.129]<\/em><\/p>\n
\nskipping:<\/strong> [192.168.48.129]<\/em><\/p>\n
\nok:<\/strong> [192.168.48.129]<\/em><\/p>\n
\nok: [192.168.48.129] => {<\/em>
\n “ansible_facts[‘distribution’]”: “CentOS”<\/em>
\n}<\/em><\/p>\n
\n192.168.48.129 : ok=3 changed=0 unreachable=0 failed=0 skipped=1 rescued=0 ignored=<\/em>0<\/p>\n
\napache:x:48:48:Apache:\/usr\/share\/httpd:\/sbin\/nologin<\/em>
\nuser800:x:1010:1010::\/home\/user800:\/bin\/bash<\/em>
\ncentosUser01<\/strong>:x:1011:1011::\/home\/centosUser01:\/bin\/bash<\/em><\/p>\n