Code Movement Pakistan - Ansible DevOps Bootcamp

Prerequisites

• docker-compose
• ansible
• nodejs
• npm

Project Setup

Following are the steps to setup the both Demo projects:

• Run docker command docker-compose up --build.
• Create an inventory file hosts or modify in /etc/ansible/hosts.
• Collect the docker0 ip from ifconfig.
• Add the following configuration in /etc/ansible/hosts.

[servers]
server1 ansible_user=root ansible_host=172.17.0.1 ansible_port=32781 ansible_ssh_pass=frostbyte
server2 ansible_user=root ansible_host=172.17.0.1 ansible_port=32782 ansible_ssh_pass=frostbyte

[servers:vars]
ansible_python_interpreter=/usr/bin/python3

[dev_servers]
devServer-1 ansible_user=root ansible_host=172.17.0.1 ansible_port=32783 ansible_ssh_pass=frostbyte
devServer-2 ansible_user=root ansible_host=172.17.0.1 ansible_port=32784 ansible_ssh_pass=frostbyte

[dev_servers:vars]
ansible_python_interpreter=/usr/bin/python3

[stage_servers]
stageServer-1 ansible_user=root ansible_host=172.17.0.1 ansible_port=32785 ansible_ssh_pass=frostbyte
stageServer-2 ansible_user=root ansible_host=172.17.0.1 ansible_port=32786 ansible_ssh_pass=frostbyte

[stage_servers:vars]
ansible_python_interpreter=/usr/bin/python3

• Ansible uses python2 as default interpreter. In case you are running python3 include the ansible_python_interpreter

• Try to ssh in each server using ssh command ssh root@<ansible-host> -p <ansible-port> to save the keys into your known_hosts. This step can also be automated.

• Ping the containers using ansible all -m ping -u root

devServer-1 | SUCCESS => {
    "changed": false,
    "ping": "pong"
}
devServer-2 | SUCCESS => {
    "changed": false,
    "ping": "pong"
}
stageServer-1 | SUCCESS => {
    "changed": false,
    "ping": "pong"
}
server2 | SUCCESS => {
    "changed": false,
    "ping": "pong"
}
server1 | SUCCESS => {
    "changed": false,
    "ping": "pong"
}
stageServer-2 | SUCCESS => {
    "changed": false,
    "ping": "pong"
}

If you get the above response means you have your instances are accessable and you are good to proceed.