Lab 1 - Imperative: Create VS, Pool and Members using playbook variables
------------------------------------------------------------------------

You will create a consolidated playbook to deploy VS, Pools and associated Members.

Task 1 - Create consolidated playbook
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#. Create a playbook ``app.yaml``.

   - Type ``nano playbooks/app.yaml``
   - Type the following into the ``playbooks/app.yaml`` file.

     .. code::

        ---

        - name: "Imperative: Create new web app"
          hosts: bigips
          gather_facts: False
          connection: local

          vars:
            vsname: "app2_vs"
            vsip: "10.1.10.20"
            vsport: "443"
            plname: "app2_pl"
            pmport: "80"
            pmhost1: "10.1.20.13"
            pmhost2: "10.1.20.14"
            state: "present"

          environment: "{{ bigip_env }}"

          tasks:
            - name: Adjust virtual server
              bigip_virtual_server:
                name: "{{ vsname }}"
                destination: "{{ vsip }}"
                port: "{{ vsport }}"
                description: "Web App"
                snat: "Automap"
                all_profiles:
                  - "tcp-lan-optimized"
                  - "clientssl"
                  - "http"
                  - "analytics"
                state: "{{ state }}"

            - name: Adjust a pool
              bigip_pool:
                name: "{{ plname }}"
                monitors: "/Common/http"
                monitor_type: "and_list"
                slow_ramp_time: "120"
                lb_method: "ratio-member"
                state: "{{ state }}"

            - name: Create nodes
              bigip_node:
                name: "{{ item.name }}"
                host: "{{ item.host }}"
                state: "{{ state }}"
              loop:
                - { name: "{{ pmhost1 }}", host: "{{ pmhost1 }}" }
                - { name: "{{ pmhost2 }}", host: "{{ pmhost2 }}" }

            - name: Add nodes to pool
              bigip_pool_member:
                host: "{{ item.host }}"
                port: "{{ pmport }}"
                pool: "{{ plname }}"
                state: "{{ state }}"
              loop:
                - { host: "{{ pmhost1 }}" }
                - { host: "{{ pmhost2 }}" }
              when: state == "present"

            - name: Update a VS
              bigip_virtual_server:
                name: "{{ vsname }}"
                pool: "{{ plname }}"
                state: "{{ state }}"
              when: state == "present"


   - :guilabel:`Ctrl-x` to save file.

#. Run this playbook.

   - Type ``ansible-playbook -e @creds.yaml --ask-vault-pass playbooks/app.yaml``

     If successful, you should see similar results

     .. image:: ../images/image011.png
        :height: 180px

#. Verify results in BIG-IP GUI.

   .. HINT:: You should see app2_vs deployed with 2 pool members.  App should be
      accessible on https://10.1.10.20.

#. Run this playbook to teardown app.

   - Type ``ansible-playbook -e @creds.yaml --ask-vault-pass playbooks/app.yaml -e state="absent"``

#. Verify that app2_vs, pool and nodes should be deleted in BIG-IP GUI.

   .. NOTE::

     Setting the ``state="absent"`` will delete the object.  For example within
     the ``bigip_virtual_server`` module for virtual server state.

     If ``absent``, delete the virtual server if it exists.
     If ``present``, create the virtual server and enable it.
     If ``enabled``, enable the virtual server if it exists.
     If ``disabled``, create the virtual server if needed, and set state to disabled.

     This playbook introduces environment and group variables, ``environment: "{{ bigip_env }}"`` references the /inventory/group_vars/bigips file.

     Additional info on variables and precedence can be seen at `this link`_.

     .. _this link: https://docs.ansible.com/ansible/2.5/user_guide/playbooks_variables.html