00_sno_prerequisites.yml

---
- name: This play ensures prerequisites are satisfied before installing
  hosts: vm_host
  vars_files:
    - vars/sno_vars.yml
  tasks:
    - name: Check if distribution is supported
      ansible.builtin.fail:
        msg: Your distribution is actually unsupported
      when:
        - ansible_distribution != 'CentOS'
        - ansible_distribution != 'Fedora'
        - ansible_distribution != 'RedHat'

    - name: Block of cluster checks
      block:
        - name: Fail fast if node count is not consistent
          ansible.builtin.fail:
            msg: "Only ONE node can be present"
          when: (cluster_nodes.host_list.sno | count != 1)

        - name: Fail fast if node count is not consistent
          ansible.builtin.fail:
            msg: "Please check the host_list variable in cluster_nodes, one node must be present"
          when: (cluster_nodes.host_list.sno | count <= 0)

        - name: Fail fast if SNO node doesn't meet minimum requirements
          ansible.builtin.fail:
            msg: "SNO node must be provisioned with at least 16GB memory, 60GB storage and 8vCPUs"
          when: (cluster_nodes.specs.sno.vcpu < 8) or (cluster_nodes.specs.sno.mem < 16) or (cluster_nodes.specs.sno.disk < 60)

        - name: Check for pullSecret variable and fail fast
          ansible.builtin.fail:
            msg: "Check the pullSecret var in files/vars.yaml"
          when: (cluster.pullSecret is undefined) or (cluster.pullSecret | length < 1)