Part 1 Create 3 ubuntu VM’s or Docker container

step 1 , step 2 and step 3

Part 2 install Ansible and requires tools in ansible_master

step 4 ,

Part 3 Setup n number of target machines (2)/ container(2) configure SSH and allow

PermitRootLogin and change the root password

step 5 , step 6 , step 7, step 8 , step 9

Part 4 Perform the same all steps with target 2 and so on

step 10

Part 5 Find the IP’s of all targets container for adding in ansible host file

step 11

Part 6 setup ansible_master for ssh connectivity and adding IP’s in hostfile

step 12 , step 13 , step 14

Part 7 copy the generated ssk keys from ansible_master to target machine and check the connectivity

step 15 , step 16

Part 8 create a ansible playbook and run

step 17

Part 9 Login to the target machine / Container and verify is nginx installed or not

==========================

Part 1 Create 3 ubuntu VM’s or Docker container

Step 1 Go to docker playground create an instance / node and create 3 Ubuntu container

1st - ansible_master

2nd target 1

3rd target 2

Step 2 create containers

docker run -itd --name ansible_master ubuntu /bin/bash

docker run -itd --name target1 ubuntu /bin/bash

docker run -itd --name target2 ubuntu /bin/bash

CONTAINER ID IMAGE COMMAND CREATED STATUS PO

RTS NAMES

0a640c65b28f ubuntu "/bin/bash" 4 seconds ago Up 3 seconds

target2

a1218da0535c ubuntu "/bin/bash" 13 seconds ago Up 12 seconds

target1

b40e796c2c56 ubuntu "/bin/bash" 36 seconds ago Up 34 seconds

ansible_master

done

Step 3 check the process and name for verification

docker ps

Part 2 install Ansible and requies tools in ansible_master

Step 4 go to ansible_master container update the ubuntu and install some dependencies and ansible

docker exec -it ansible_master bash

apt update

apt install python ansible vim iputils-ping openssh-client -y

ansible --version

ansible 2.9.6

-- done ------------------

Step 5 Login to target 1

docker exec -it target1 bash

Step 6 Update and install SSH and required dependencies

apt update

apt install vim python iputils-ping openssh-client -y

apt-get install openssh-server -y

Geographical area 6 city 44

done

Step 7 edit sshd_config to allow SSH and root login as ansible requires

cd /etc/ssh

vi sshd_config

uncomment the parameter and modify the permission to

yes PermitRootLogin yes

and PasswordAuthentication yes

Step 8 Start the service ssh if its not running

service ssh status

service ssh start

service ssh status

target 1 ssh service started ---

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

Step 9 change the root password to admin

passwd root

Admin

Admin

admin for target 1 containet

Part 4 Perform the same all steps with target 2 and so on

Step 10

Part 5 Find the IP’s of all targets container for adding in ansible host file

Come out to docker node and run the command

Step 11

sudo docker inspect target1 "IPAddress": "172.17.0.3",

sudo docker inspect target2

You will find the IPAddress like 172.17.0.3

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

Part 6 setup ansible_master for ssh connectivity and adding IP’s in hostfile

Step 12 go to ansible_master

docker exec -it ansible_master bash

Step 13 edit ansible host file and provide the target IP’s

cd /etc/ansible/

ls

Go to hosts file

provide the IP of the target machines

Step 14 verify as you are able to ping target machine from ansible_master

Ping <Target machine IP>

yes ping works for me

Part 7 copy the generated ssh keys from ansible_master to target machine and check the connectivity

Step 15 Copy the generated key from ansible_master to remote target

ssh-copy-id [email protected]

yes

Step 16 You should be able to connect via target machine from ansible_master

ssh [email protected]

Part 8 Now create a ansible playbook and run ansible-playbook

Step 17 :- create a installnginx.yaml file in

cd /etc/ansible

vi installnginx.yaml

---

- hosts: all

tasks:

- name: ensure nginx is at the latest version

apt: name=nginx state=latest

- name: start nginx

service:

name: nginx

state: started

Step 18 : Run ansible playbook

ansible-playbook installnginx.yaml

Validation :-

You can verify login to target machine and check is Nginx Service is running or not

docker exec -it target1 bash

service nginx status

And

docker exec -it target2 bash

service nginx status

Nginx should be running in both the target machines / containers