yogesh174.ansible_role_provisioning

This role provisions EC2 instances on AWS cloud meant for kubernetes HA cluster.

Requirements

Make sure to install and configure aws shell with your credentials. Setup dynamic inventory in ansible with aws EC2 instances. Also make sure that the ansible control node can connect to newly provisioned EC2 instances(using group_vars) with the keypair you provide.

Role Variables

Compulsory variables in vars/main.yml:

region vpc_subnet_id

Optional variables and their default values in vars/main.yml:

worker_count: 2 keypair: "k8s" instance_type: "t2.micro" image: "ami-047a51fa27710816e" assign_public_ip: "yes" sg: "k8s"

Example Playbook

"provision_master" task provisions master node with the necessary tags and "provision_worker" task provisions worker nodes with the necessary tags.

- hosts: localhost
      
  tasks:

    - name: "Provision master node"
      import_role:
        name: provisioning
        tasks_from: provision_master
      vars:
        vpc_subnet_id: "subnet-2b3b2b4c"
        region: "us-east-1"
    
    - name: "Provision worker nodes"
      import_role:
        name: provisioning
        tasks_from: provision_worker
      vars:
        vpc_subnet_id: "subnet-2b3b2b4c"
        region: "us-east-1"

    - set_fact:
        ec2_instances: "{{ ec2_master.instances + ec2_master.tagged_instances + ec2_worker.instances + ec2_worker.tagged_instances }}"

    - name: wait for ssh to start
      wait_for:
        host: "{{ item.public_dns_name  }}"
        port: 22
        search_regex: OpenSSH
        delay: 20
        state: started
      loop: "{{ ec2_instances }}"

License

BSD

Author Information

Surapaneni Yogesh - surapaneniyogesh11@gmail.com
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