Question 7

Correct answer: A

A.

In this solution, an Ansible playbook is written using the copy module to copy a configuration file from the control node to multiple managed nodes. The ansible.builtin.copy module is used to manage the copying process. In the playbook, the source file (/path/to/config_file.conf) is specified along with the destination directory (/etc/app/config_file.conf). The mode: '0644' ensures that the copied file has the correct permissions, allowing the owner to read and write the file, while the group and others can only read it. This playbook will ensure that the configuration file is deployed consistently across all the managed nodes.

Line-by-Line Explanation

1. - hosts: all

   • This specifies that the playbook will run on all hosts defined in the Ansible inventory. It applies the task to all managed nodes.

2. tasks:

   • This section defines the tasks to be executed on the target hosts.

3. - name: Copy configuration file to managed nodes

   • The description of the task. It indicates that the task's purpose is to copy a configuration file to the managed nodes.

4. ansible.builtin.copy:

   • This uses the copy module from Ansible to copy files from the control node to the managed nodes.

5. src: /path/to/config_file.conf

   • The path to the source configuration file on the control node. This is the file that will be copied.

6. dest: /etc/app/config_file.conf

   • The destination path where the configuration file will be copied on the managed nodes. The file will be placed in the /etc/app/ directory.

7. mode: '0644'

   • Sets the permissions of the copied file. 0644 allows the file owner to read and write the file, while the group and others can only read the file.

This playbook ensures that the configuration file is copied to multiple managed nodes, applying the correct file permissions, and is a simple, efficient method for deploying configuration files across multiple machines in a controlled and consistent manner.