RedHat EX294 Exam - Topic 9 Question 42 Discussion

Actual exam question for RedHat's EX294 exam

Question #: 42
Topic #: 9

[All EX294 Questions]

Create a role called apache in "/home/admin/ansible/roles" with the following

requirements:

--> The httpd package is installed, enabled on boot, and started.

--> The firewall is enabled and running with a rule to allow access to the web server.

--> template file index.html.j2 is used to create the file /var/www/html/index.html

with the output:

Welcome to HOSTNAME on IPADDRESS

--> Where HOSTNAME is the fqdn of the managed node and IPADDRESS is the IP-Address of

the managed node.

note: you have to create index.html.j2 file.

--> Create a playbook called httpd.yml that uses this role and the playbook runs on

hosts in the webservers host group.

AExplanation:
Solution as:
----------
# pwd
/home/admin/ansible/roles/
# ansible-galaxy init apache
# vim apache/vars/main.yml
---
# vars file for apache
http_pkg: httpd
firewall_pkg: firewalld
http_srv: httpd
firewall_srv: firewalld
rule: http
webpage: /var/www/html/index.html
template: index.html.j2
:wq!
# vim apache/tasks/package.yml
---
- name: Installing packages
yum:
name:
- '{{http_pkg}}'
- '{{firewall_pkg}}'
state: latest
:wq!
# vim apache/tasks/service.yml
---
- name: start and enable http service
service:
name: '{{http_srv}}'
enabled: true
state: started
- name: start and enable firewall service
service:
name: '{{firewall_srv}}'
enabled: true
state: started
:wq!
# vim apache/tasks/firewall.yml
---
- name: Adding http service to firewall
firewalld:
service: '{{rule}}'
state: enabled
permanent: true
immediate: true
:wq!
# vim apache/tasks/webpage.yml
---
- name: creating template file
template:
src: '{{template}}'
dest: '{{webpage}}'
notify: restart_httpd
!wq
# vim apache/tasks/main.yml
# tasks file for apache
- import_tasks: package.yml
- import_tasks: service.yml
- import_tasks: firewall.yml
- import_tasks: webpage.yml
:wq!
# vim apache/templates/index.html.j2
Welcome to {{ ansible_facts.fqdn }} on {{ ansible_facts.default_ipv4.address }}
# vim apache/handlers/main.yml
---
# handlers file for apache
- name: restart_httpd
service:
name: httpd
state: restarted
:wq!
# cd ..
# pwd
/home/admin/ansible/
# vim httpd.yml
---
- name: Including apache role
hosts: webservers
pre_tasks:
- name: pretask message
debug:
msg: 'Ensure webserver configuration'
roles:
- ./roles/apache
post_tasks:
- name: Check webserver
uri:
url: 'http://{{ ansible_facts.default_ipv4.address }}'
return_content: yes
status_code: 200
:wq!
# ansible-playbook httpd.yml ---syntax-check
# ansible-playbook httpd.yml
# curl http://serverx

Show Suggested Answer

Suggested Answer: A

by Francoise at Apr 26, 2024, 04:05 AM

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Corazon

4 months ago

I’m not sure about using `latest` for packages, could cause issues.

upvoted 0 times

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Reta

4 months ago

Nice template setup! Simple and effective.

upvoted 0 times

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Detra

4 months ago

Wait, is firewalld the default on all systems?

upvoted 0 times

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Mirta

5 months ago

Totally agree, firewall is crucial for security.

upvoted 0 times

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Dierdre

5 months ago

Looks good, but don't forget to check the firewall rules!

upvoted 0 times

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Remona

5 months ago

I hope I remember to use the correct variables in the `index.html.j2` file; I think it was something like `{{ ansible_facts.fqdn }}` for the hostname.

upvoted 0 times

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Judy

5 months ago

I feel confident about the playbook structure, but I might mix up the tasks for starting services and enabling them on boot.

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Karol

5 months ago

I think we did a similar question where we had to set up a web server, but I can't recall if we used the `firewalld` module or something else.

upvoted 0 times

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Leana

6 months ago

I remember we practiced creating roles, but I'm a bit unsure about the exact syntax for the template file.

upvoted 0 times

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Jerry

6 months ago

I think I've got a good handle on this. The key will be to take it step-by-step, test each piece as I go, and make sure the playbook runs without any syntax errors. Can't wait to see the final result!

upvoted 0 times

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Reyes

6 months ago

This looks like a good opportunity to practice using Ansible's import_tasks functionality to keep my main.yml file clean and modular. I'll make sure to create separate task files for each logical component.

upvoted 0 times

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Sabra

6 months ago

Ah, the template file for the index.html is a nice touch. I'll need to make sure I get the variable substitution right for the hostname and IP address. Shouldn't be too difficult, but I'll double-check the Jinja2 syntax.

upvoted 0 times

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Eun

6 months ago

This looks like a pretty straightforward task. I think I can handle this by creating the role structure, defining the variables, and then building out the tasks to install the packages, configure the services, and generate the index.html file.

upvoted 0 times

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Florinda

6 months ago

Hmm, I'm a bit unsure about the firewall configuration. Do I need to create a separate task for that or can I just include it in the service tasks? I'll need to review the firewall module documentation to make sure I'm doing that correctly.

upvoted 0 times

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