Free RHCE Automation and Deployment Questions and Answers

Question 1

Which configurations in ansible.cfg are used for privilege escalation?

Accepted Answer

become, become_method, become_user, become_ask_pass

Answer

In Ansible, privilege escalation, often referred to as 'become,' is configured using specific parameters in `ansible.cfg`. These include `become` to enable escalation, `become_method` for the method (e.g., sudo), `become_user` for the target user, and `become_ask_pass` to prompt for a password. These settings collectively define how Ansible gains elevated permissions on managed hosts.

Question 2

What command syntax is used to perform a syntax check on an Ansible playbook?

Accepted Answer

ansible-playbook --syntax-check playbook.yml

Answer

The command `ansible-playbook --syntax-check playbook.yml` is used to validate the YAML syntax of an Ansible playbook. This command parses the playbook for structural correctness without executing any tasks on target hosts. It is a crucial step for identifying and correcting syntax errors early, preventing potential failures during actual playbook execution.

Question 3

What command syntax is used to perform a dry run (check mode) of an Ansible playbook without making changes?

Accepted Answer

ansible-playbook -C playbook.yml

Answer

The `ansible-playbook -C playbook.yml` command, where `-C` is shorthand for `--check`, performs a 'dry run' or 'check mode' of an Ansible playbook. In this mode, Ansible reports what changes *would* be made to the target systems without actually implementing them. This is invaluable for testing playbooks and understanding their potential impact before making any permanent modifications.

Question 4

How do you save the output from an Ansible module to a variable?

Accepted Answer

register: var_name

Answer

In Ansible, the `register` keyword is used to capture the output of a task and store it in a variable. This allows subsequent tasks in the playbook to access and utilize the information returned by the preceding module. For example, the output of a shell command or a module's state can be registered and then used for conditional logic or further processing.

Question 5

How do you output or display the value of a variable in Ansible?

Accepted Answer

debug: var=var_name

Answer

The `debug` module in Ansible is specifically designed to output variables or messages during playbook execution. Using `debug: var=var_name` will display the current value of the specified variable to the console. This is an essential tool for debugging playbooks, verifying variable contents, and tracing execution flow.

RHCE - Red Hat Certified Engineer Practice Test

RHCE - Red Hat Certified Engineer Practice Test

Free RHCE Automation and Deployment Questions and Answers