Ansible Role: kubernetes_instance

An Ansible Role to launch Amazon EC2 instances for configure Kubernetes Cluster. One of the instances will be Kubernetes Master node and other two will be Kubernetes Worker node.

Requirements

Install Python library to generates inventory that Ansible can understand by making API request to AWS EC2 using the Boto library.

pip3 install boto

The inventory/ec2.py script assumes Ansible is being executed where the environment variables needed for Boto have already been set:

export AWS_ACCESS_KEY_ID='AK123'
export AWS_SECRET_ACCESS_KEY='abc123'

Note: The AWS credentials can optionally be specified inside inventory/ec2.ini file Credentials specified here are ignored if the environment variables are set.

aws_access_key_id = AXXXXXXXXXXXXXX
aws_secret_access_key = XXXXXXXXXXXXXXXXXXX

Role Variables

Available variables are listed below, along with default values (see defaults/main.yml):

aws_region: ap-south-1  
aws_ami: ami-08f63db601b82ff5f  
aws_instance_type: t2.micro  
subnet_id: subnet-00566450d0ea4c288  
security_group_id: sg-7a400518  
key: ansible-key  
name:  
  - K8S_Master  
  - K8S_Worker1  
  - K8S_Worker2  
access_key: AXXXXXXXXXXXXXX
secret_key: XXXXXXXXXXXXXXXXXXX

Dependencies

None

Example Playbook

An example playbook to use this Role

- hosts: localhost
  roles:
    - kubernetes.instance
  tasks:
    - meta: refresh_inventory

License

BSD

Author Information

This role is created in 2021 by Aditya Raj