adhoc-ocp-create-pv.yml

---
# This playbook is to create a persistent volume for openshift CI namespace
# The node on which we'll run this should have the exported NFS volume mounted locally
# using variables from inventory:
#   ocp_nfs_server: (like node.domain)
#   ocp_nfs_export: ocp-staging

- hosts: localhost
  vars_prompt:
    - name: "ocp_env"
      prompt: | 
        Select OCP env:
          - stream-rdu2
          - ci-aws
          - ci-aws-stg
        
      private: False
  vars:
    ocp_groups:
      stream-rdu2: ocp-admin-nodes
      ci-aws-stg: ocp-stg-ci-management
      ci-aws: aws-ocp-ci-management

  tasks:
    - set_fact: 
        mgmt_hosts: "{{ ocp_groups[ocp_env] }}"
    - add_host:
        name: "{{ item }}"
        groups: ocp_target_host
      with_items: "{{ groups[mgmt_hosts] }}"  

- hosts: ocp_target_host
  become: true
  become_user: "{{ ocp_service_account }}"
  vars_prompt:
    - name: "ocp_project"
      prompt: "Existing project for which we'll just create a PV "
      private: no
    - name: "pv_name"
      prompt: "Reason for PV (computed into uuid) "
      private: no
    - name: "pv_claimref"
      prompt: "PV Reference Name for the Claim "
      private: no
    - name: "pv_size"
      prompt: "Persistent Volume size (example 10Gi) "
      private: no
    

  tasks:
    - name: Generate a UUID
      set_fact:
        pv_uuid: "{{ (ocp_project + '-' + pv_claimref|default('noclaimref', true)) + '-' + pv_name | to_uuid }}"
      tags:
        - pv
        - nfs

    - name: UUID Generated
      debug:
        var: pv_uuid
      tags:
        - pv
        - nfs

    - name: Make a pv name
      set_fact:
        pv_name: "pv-{{ pv_size | lower }}-{{ pv_uuid }}"
      tags:
        - pv
        - nfs

    - name: UUID Generated
      debug:
        var: pv_name
      tags:
        - pv
        - nfs

    - name: See if the PV already exists
      command: 
        cmd: "bin/oc get pv/{{ pv_name }}"
        chdir: "/home/{{ ocp_service_account }}"
      register: results
      changed_when: false
      failed_when:
        - results.rc == 0
      tags:
        - pv
    
    - block:
        - name: Ensuring we have local mount point
          file:
            path: /mnt/ocp_store
            state: directory

        - name: Ensuring nfs export is mounted on mgmt station
          mount:
            fstype: nfs
            src: "{{ ocp_nfs_server }}:{{ ocp_nfs_export }}"
            path: /mnt/ocp_store
            state: mounted
            
        - name: make directories for each PV
          file:
            path: "/mnt/ocp_store/{{ pv_name }}"
            owner: nobody
            group: nobody
            mode: 0777
            state: directory
      become_user: root  
      tags:
        - pv
        - nfs

    - name: Ensuring we can store pv config files to apply
      file:
        path: "/home/{{ ocp_service_account }}/pv_configs/"
        state: directory

    - name: create json files for PV
      template:
        src: "templates/openshift-pv-storage/pv.yml.j2"
        dest: "/home/{{ ocp_service_account }}/pv_configs/{{ pv_name }}.yml"
      register: pv_init  
      tags:
        - pv

    - name: apply the transformation
      command: 
        cmd: "bin/oc create -f pv_configs/{{ pv_name }}.yml"
        chdir: "/home/{{ ocp_service_account }}"
      when: pv_init is changed
      tags:
        - pv