change-cluster

This role aims to change the nodes that are active within the same pool. In a traditional scenario, this could be controlled through the balancer "monitors", in the case of BIG IP, but, due to the particularity of the application, this switching is necessary.

Requirements

Role tested in Ansible 2.9.2, Python 2.7, BIG-IP 12.1.3.5 and BIG-IP 13.1.0.1

Role Variables

defaults/main.yml:

- balancerName: bigip_device
- balancerUser: bigip_user
- balancerPass: bigip_password
- poolApp1: pool_app1
- poolApp2: pool_app2
- poolServerPort: member_port
- app1ClusterA:
  - list_ip_or_fqdn_pool_members
- app1ClusterB:
  - list_ip_or_fqdn_pool_members
- app2ClusterA:
  - list_ip_or_fqdn_pool_members
- app2ClusterB:
  - list_ip_or_fqdn_pool_members

Example Playbook

- name: "Change Cluster App1 and App2"
  hosts: your_inventory
  gather_facts: true
  connection: local
  vars_prompt:
     - name: "disablingClusterApp1"
       prompt: "Which APP1 cluster do you want to DISABLE? [ A | B ]"
       private: no
       register: disablingClusterApp1
     - name: "disablingClusterApp2"
       prompt: "Which APP2 cluster do you want to DISABLE? [ A | B ]"
       private: no
       register: disablingClusterApp2              
#---> Invalid condition
  pre_tasks:
    - name: Invalid condition
      fail:
        msg: "The option typed is invalid, use only A or B"
      when: disablingClusterApp1 != "A" and disablingClusterApp1 != "B"
    - name: Invalid condition
      fail:
        msg: "The option typed is invalid, use only A or B"
      when: disablingClusterApp2 != "A" and disablingClusterApp2 != "B"      
  roles:
  - change-cluster

License

BSD

Author Information

Github: vinealvees