Ansible code snippets in YAML

As I explore and learn Ansible, I will be adding the simple and easy to use Ansible code snippets written in YAML.

🚧 The snippets include generic yaml code for you to understand the Ansible in-built modules and how to use them for your Ansible automation. More code snippets to come. So, ⭐ this repository 😊

Prerequisites

• Install and setup Ansible

Run locally using playbooks

1. Command to run locally on your terminal or command prompt

    ansible-playbook list_files.yml -i hosts.ini --flush-cache  

   For verbose output, use -vvvv flag in the ansible command

   Expected output:

    PLAY [List files] *****************************************************************************************************************************************************************************
   
    TASK [List files in the current directory] ****************************************************************************************************************************************************
    changed: [localhost]
    
    TASK [debug] **********************************************************************************************************************************************************************************
    ok: [localhost] => {
        "output.stdout_lines": [
            "LICENSE",
            "README.md",
            "add_user_to_os.yml",
            "ansible.cfg",
            "curl_requests.yml",
            "hosts.ini",
            "list_files.yml",
            "yum_install_dependencies.yml"
        ]
    }
    
    PLAY RECAP ************************************************************************************************************************************************************************************
    localhost                  : ok=2    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   

2. cURL requests: add --ask-become-pass flag prompting for a root user password

    ansible-playbook curl_requests.yml -i hosts.ini --flush-cache --ask-become-pass

   Expected output:

    BECOME password: 
   
    PLAY [CURL GET and POST requests] *************************************************************************************************************************************************************
   
    TASK [POST request with JSON and bearer token] ************************************************************************************************************************************************
    ok: [localhost]
   
    TASK [Print return information from the previous task] ****************************************************************************************************************************************
    ok: [localhost] => {
        "result.json": {
            "success": "true"
        }
    }
   
    TASK [GET request to download a file] *********************************************************************************************************************************************************
    ok: [localhost]
   
    TASK [debug] **********************************************************************************************************************************************************************************
    ok: [localhost] => {
        "result": {
            "changed": false,
            "dest": "./filename.txt",
            "elapsed": 0,
            "failed": false,
            "gid": 0,
            "group": "wheel",
            "mode": "0644",
            "msg": "HTTP Error 304: Not Modified",
            "owner": "root",
            "size": 10612,
            "state": "file",
            "status_code": 304,
            "uid": 0,
            "url": "https://reqbin.com/echo"
        }
    }
   
    PLAY RECAP ************************************************************************************************************************************************************************************
    localhost                  : ok=4    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0   
   

Run locally using Ansible roles

Roles in Ansible are reusable tasks. You can either use playbooks or roles.

1. To run the roles, run the below command. site.yml is the playbook file. staging is the inventory file.

   ansible-playbook site.yml -i staging --ask-become-pass

2. Part of the output

    BECOME password:
   
    PLAY [File and OS management] ***************************************************************************************************
   
    TASK [file_management : List files in the current directory] ********************************************************************
    [WARNING]: Platform darwin on host localhost is using the discovered Python interpreter at /opt/local/bin/python3.11, but future
    installation of another Python interpreter could change the meaning of that path. See https://docs.ansible.com/ansible-
    core/2.15/reference_appendices/interpreter_discovery.html for more information.
    changed: [localhost]
   
    TASK [file_management : debug] **************************************************************************************************
    ok: [localhost] => {
        "msg": [
            "LICENSE",
            "README.md",
            "filename.txt",
            "group_vars",
            "host_vars",
            "playbooks",
            "production",
            "roles",
            "scripts",
            "site.yml",
            "staging"
        ]
    }
   
    TASK [os_management : Add a new user to the Operation system] *******************************************************************
    included: /Users/vmac/Documents/Code/GitHub/ansible-yaml-snippets/roles/os_management/tasks/add_os_user.yml for localhost
   
    TASK [os_management : Add the user 'new-user' with a specific uid] **************************************************************
    changed: [localhost]
   
    TASK [os_management : Change OS user password] **********************************************************************************
    skipping: [localhost]
   
    TASK [os_management : Add a new user to the Operation system] *******************************************************************
    skipping: [localhost]
   
    TASK [os_management : Change OS user password] **********************************************************************************
    included: /Users/vmac/Documents/Code/GitHub/ansible-yaml-snippets/roles/os_management/tasks/change_os_user_passwd.yml for localhost
   
    TASK [os_management : Change os user password] **********************************************************************************
    New password:

License

Check the License