Installing and Configuring Ansible

• We will create two ubuntu vms
• Create a user called devops in two vms with sudo permissions
• Create a key-pair in ansible control node & copy the public key to other vm from ansible control node
• Installing ansible

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

• Verify ansible version
  
• Now lets add inventory. Create a file called as hosts with one entry <ipaddress>
• Check connectivity by executing ansible -m ping -i hosts all
  
• Note:
  • To enable password authentications edit config /etc/ssh/sshd_config and set PasswordAuthentication to yes from no
  • restart sshd service sudo service sshd restart

Linux Topics

• User management
• sudo
• key management (ssh-keygen, ssh-copy-id)
• package management (apt, yum, dnf)
• file editing (nano, vim)