DevOps Classroom Series – Ansible Installation – 06/Nov/2019

Ansible Installation

Lab Setup

1. Create two ec2 machines with t2.micro in AWS
2. Tag one machine as ACS and other as Node-1
3. Login into ACS and become root user user
4. Enable Password Based Authentication

vi /etc/ssh/sshd_config
change the contents
# PasswordAuthentication no  => PasswordAuthentication yes
service sshd restart

5. Create a user devops and give sudo permissions

adduser devops
visudo
 # in the file opened
 devops  ALL=(ALL:ALL) NOPASSWD:ALL

# To test this
su devops
sudo apt-get update
# It should not ask for password and it should complete the command execution

6. If python is not installed on ACS, install python
   • To install ansible on Ubuntu Refer Here
   • On the node execute the following lines

sudo apt update
sudo apt install software-properties-common
sudo apt-add-repository --yes --update ppa:ansible/ansible
sudo apt-get install python -y

7. Install Ansible on ACS
8. Repeat the steps from 3 to 6 on node-1
9. Login into ACS as devops and configure password less login into node-1

ssh devops@<acspublicip>
ssh-keygen
ssh-copy-id devops@<node1privateip>

10. Do the following to test connectivity

sudo mv /etc/ansible/hosts /etc/ansible/hosts.orig
sudo vi /etc/ansible/hosts

# add node1-private ip and save the file
# check by executing
ansible -m ping all

Refer the following

• VIM