Exercise 3.2: Deleting a Web Application

Objective

Demonstrate deleting a Web Application with AS3 and the uri module.

Guide

Step 1:

Use VS Code Explorer to create a new file called delete.yml:

The Ansible node is equiped with Visual Studio Code and can be accessed via UDF ACCESS Methods.

Step 2:

Enter the following play definition into delete.yml:

---
- name: LINKLIGHT AS3
  hosts: lb
  connection: local
  gather_facts: false

• The --- at the top of the file indicates that this is a YAML file.
• The hosts: lb, indicates the play is run only on the lb group. Technically there only one F5 device but if there were multiple they would be configured simultaneously.
• connection: local tells the Playbook to run locally (rather than SSHing to itself)
• gather_facts: false disables facts gathering. We are not using any fact variables for this playbook.

Step 3

Append the following to the delete.yml Playbook.

tasks:

- name: PUSH AS3
  uri:
    url: "https://{{ private_ip }}:8443/mgmt/shared/appsvcs/declare/WorkshopExample"
    method: DELETE
    status_code: 200
    timeout: 300
    body_format: json
    force_basic_auth: yes
    user: "{{ ansible_user }}"
    password: "{{ ansible_ssh_pass }}"
    validate_certs: no
  delegate_to: localhost

There is only three parameters that have changed from the previous exercise. - url has changed. Instead of ending with declare it now ends with the tenant name, which is WorkshopExample. - method has changed from POST to DELETE. - body has been removed. It is not required since we simply deleting this entire tenant.

Step 4

Run the playbook - exit back into the command line of the control host and execute the following:

[centos@ansible ~]$ ansible-playbook delete.yml

Playbook Output

The output will look as follows.

[centos@ansible ~]$ ansible-playbook delete.yml

PLAY [LINKLIGHT AS3] ***********************************************************

TASK [PUSH AS3] ********************************************************************************
ok: [f5 -> localhost]

PLAY RECAP ********************************************************************************
f5                         : ok=1    changed=0    unreachable=0    failed=0

Solution

The finished Ansible Playbook is provided here for an Answer key. Click here: delete.yml.

Login to the web UI and make sure the Partition WorkshopExample is removed.

– You have finished this exercise. Click here to return to the lab guide