RedHat EX294 - Red Hat Certified Engineer (RHCE) exam for Red Hat Enterprise Linux 8

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

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

Create user accounts

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

--> A list of users to be created can be found in the file called user_list.yml

which you should download from http://classroom.example.com/user_list.yml and

save to /home/admin/ansible/

--> Using the password vault created elsewhere in this exam, create a playbook called

create_user.yml

that creates user accounts as follows:

--> Users with a job description of developer should be:

--> created on managed nodes in the "dev" and "test" host groups assigned the

password from the "dev_pass"

variable and these user should be member of supplementary group "devops".

--> Users with a job description of manager should be:

--> created on managed nodes in the "prod" host group assigned the password from

the "mgr_pass" variable

and these user should be member of supplementary group "opsmgr"

--> Passwords should use the "SHA512" hash format. Your playbook should work using

the vault password file

created elsewhere in this exam.

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

questation.

user_list.yml file consist:

---

user:

- name: user1

job: developer

- name: user2

job: manager

Create and run an Ansible ad-hoc command.

--> As a system administrator, you will need to install software on the managed

nodes.

--> Create a shell script called yum-pack.sh that runs an Ansible ad-hoc command to

create yum-repository on each of the managed nodes as follows:

--> repository1

-----------

1. The name of the repository is EX407

2. The description is "Ex407 Description"

3. The base URL is http://content.example.com/rhel8.0/x86_64/dvd/BaseOS/

4. GPG signature checking is enabled

5. The GPG key URL is http://content.example.com/rhel8.0/x86_64/dvd/RPM-GPG-KEYredhat-

release

6. The repository is enabled

--> repository2

-----------

1. The name of the repository is EXX407

2. The description is "Exx407 Description"

3. The base URL is http://content.example.com/rhel8.0/x86_64/dvd/AppStream/

4. GPG signature checking is enabled

5. The GPG key URL is http://content.example.com/rhel8.0/x86_64/dvd/ RPM-GPG-KEYredhat-

release

6. The repository is enabled

Install and configure Ansible on the control-node control.realmX.example.com as

follows:

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

--> Install the required packages

--> Create a static inventory file called /home/admin/ansible/inventory as follows:

node1.realmX.example.com is a member of the dev host group

node2.realmX.example.com is a member of the test host group

node3.realmX.example.com & node4.realmX.example.com are members of the prod

host group

node5.realmX.example.com is a member of the balancers host group.

prod group is a member of the webservers host group

--> Create a configuration file called ansible.cfg as follows:

--> The host inventory file /home/admin/ansible/inventory is defined

--> The location of roles used in playbooks is defined as /home/admin/ansible/ roles

Create an empty encrypted file called myvault.yml in /home/sandy/ansible and set the password to notsafepw. Rekey the password to iwejfj2221.

Create a file called specs.empty in home/bob/ansible on the local machine as follows:

HOST=

MEMORY=

BIOS=

VDA_DISK_SIZE=

VDB_DISK_SIZE=

Create the playbook /home/bob/ansible/specs.yml which copies specs.empty to all remote nodes' path /root/specs.txt. Using the specs.yml playbook then edit specs.txt on the remote machines to reflect the appropriate ansible facts.

Create a file in /home/sandy/ansible/ called report.yml. Using this playbook, get a file called report.txt (make it look exactly as below). Copy this file over to all remote hosts at /root/report.txt. Then edit the lines in the file to provide the real information of the hosts. If a disk does not exist then write NONE.

Create a playbook that changes the default target on all nodes to multi-user tarqet. Do this in playbook file called target.yml in /home/sandy/ansible

Create a playbook called issue.yml in /home/sandy/ansible which changes the file /etc/issue on all managed nodes: If host is a member of (lev then write "Development" If host is a member of test then write "Test" If host is a member of prod then write "Production"