RedHat Exam EX294 Topic 3 Question 58 Discussion

Actual exam question for RedHat's EX294 exam

Question #: 58
Topic #: 3

[All EX294 Questions]

Generate a hosts file:

* Download an initial template file hosts.j2 from http://classroom.example.com/

hosts.j2 to

/home/admin/ansible/ Complete the template so that it can be used to generate a file

with a

line for each inventory host in the same format as /etc/hosts:

172.25.250.9 workstation.lab.example.com workstation

* Create a playbook called gen_hosts.yml that uses this template to generate the file

/etc/myhosts on hosts in the dev host group.

* When completed, the file /etc/myhosts on hosts in the dev host group should have a

line for

each managed host:

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

172.25.250.10 serevra.lab.example.com servera

172.25.250.11 serevrb.lab.example.com serverb

172.25.250.12 serevrc.lab.example.com serverc

172.25.250.13 serevrd.lab.example.com serverd

-----------------------------------------------------------------

while practising you to create these file hear. But in exam have to download as per

questation.

hosts.j2 file consists.

localhost localhost.localdomain localhost4 localhost4.localdomain4

::1

localhost localhost.localdomain localhost6 localhost6.localdomain6

-------------------------------------------------------------------

AExplanation:
Solution as:
# pwd
/home/admin/ansible
# wget http://classroom.example.com/hosts.j2
# vim hosts.j2
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1
localhost localhost.localdomain localhost6 localhost6.localdomain6
{% for host in groups['all'] %}
{{ hostvars[host]['ansible_facts']['default_ipv4']['address'] }} {{ hostvars[host]
['ansible_facts']['fqdn'] }} {{ hostvars[host]['ansible_facts']['hostname'] }}
{% endfor %}
:wq!
# vim gen_hosts.yml
---
- name: collecting all host information
hosts: all
tasks:
- name:
template:
src: hosts.j2
dest: /etc/myhosts
when: inventory_hostname in groups['dev']
:wq
# ansible-playbook gen_hosts.yml ---syntax-check
# ansible-playbook gen_hosts.yml

Show Suggested Answer

Suggested Answer: A

by Jamey at Jan 10, 2025, 09:16 AM

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2 months ago

The playbook looks clean and straightforward. I'm curious to see if it works as expected when we run it against the dev host group.

upvoted 0 times

Malinda

1 months ago

User 3: Fingers crossed that it generates the file correctly on the dev hosts.

upvoted 0 times

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Eleonore

1 months ago

User 2: I agree, the playbook seems well-structured.

upvoted 0 times

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Nada

1 months ago

User 1: Let's run the playbook and see if it works.

upvoted 0 times

...

2 months ago

I like the use of the Jinja2 template to generate the /etc/myhosts file dynamically based on the inventory. That's a smart approach.

upvoted 0 times

Dwight

1 months ago

User 2: Definitely, it's a great way to automate the generation of files based on inventory.

upvoted 0 times

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Belen

1 months ago

User 1: I agree, using Jinja2 templates makes the process more efficient.

upvoted 0 times

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3 months ago

I think this question is tricky, we have to download a specific template file.

upvoted 0 times

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