VMware: scenario guide for vmware_tools connection plugin (#72080)

* VMware: scenario guide for vmware_tools connection plugin

Scenario doc to guide user about the usage of vmware_tools
using connection plugin.

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

* review comments

Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>
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Abhijeet Kasurde 4 years ago committed by GitHub
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Deploy a virtual machine from a template
****************************************
.. contents:: Topics
.. contents::
:local:
Introduction
============
This guide will show you how to utilize Ansible to clone a virtual machine from already existing VMware template or existing VMware guest.
Scenario Requirements
Scenario requirements
=====================
* Software
@ -76,7 +77,7 @@ Caveats
- In order to utilize Guest Customization, VMware Tools must be installed on the template. For Linux, the ``open-vm-tools`` package is recommended, and it requires that ``Perl`` be installed.
Example Description
Example description
===================
In this use case / example, we will be selecting a virtual machine template and cloning it into a specific folder in our Datacenter / Cluster. The following Ansible playbook showcases the basic parameters that are needed for this.

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Find folder path of an existing VMware virtual machine
******************************************************
.. contents:: Topics
.. contents::
:local:
Introduction
============
This guide will show you how to utilize Ansible to find folder path of an existing VMware virtual machine.
Scenario Requirements
Scenario requirements
=====================
* Software
@ -41,7 +42,7 @@ Caveats
- You need to use Python 2.7.9 version in order to use ``validate_certs`` option, as this version is capable of changing the SSL verification behaviours.
Example Description
Example description
===================
With the following Ansible playbook you can find the folder path of an existing virtual machine using name.

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Remove an existing VMware virtual machine
*****************************************
.. contents:: Topics
.. contents::
:local:
Introduction
============
This guide will show you how to utilize Ansible to remove an existing VMware virtual machine.
Scenario Requirements
Scenario requirements
=====================
* Software
@ -47,7 +48,7 @@ Caveats
The removal VMware virtual machine using ``vmware_guest`` module is destructive operation and can not be reverted, so it is strongly recommended to take the backup of virtual machine and related files (vmx and vmdk files) before proceeding.
Example Description
Example description
===================
In this use case / example, user will be removing a virtual machine using name. The following Ansible playbook showcases the basic parameters that are needed for this.

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Rename an existing virtual machine
**********************************
.. contents:: Topics
.. contents::
:local:
Introduction
============
This guide will show you how to utilize Ansible to rename an existing virtual machine.
Scenario Requirements
Scenario requirements
=====================
* Software
@ -43,7 +44,7 @@ Caveats
- You need to use Python 2.7.9 version in order to use ``validate_certs`` option, as this version is capable of changing the SSL verification behaviours.
Example Description
Example description
===================
With the following Ansible playbook you can rename an existing virtual machine by changing the UUID.

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Using VMware HTTP API using Ansible
***********************************
.. contents:: Topics
.. contents::
:local:
Introduction
============
This guide will show you how to utilize Ansible to use VMware HTTP APIs to automate various tasks.
Scenario Requirements
Scenario requirements
=====================
* Software
@ -40,7 +41,7 @@ Caveats
- There are very limited number of APIs exposed, so you may need to rely on XMLRPC based VMware modules.
Example Description
Example description
===================
With the following Ansible playbook you can find the VMware ESXi host system(s) and can perform various tasks depending on the list of host systems.

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.. _vmware_tools_connection:
************************************
Using vmware_tools connection plugin
************************************
.. contents::
:local:
Introduction
============
This guide will show you how to utilize VMware Connection plugin to communicate and automate various tasks on VMware guest machines.
Scenario requirements
=====================
* Software
* Ansible 2.9 or later must be installed.
* We recommend installing the latest version with pip: ``pip install Pyvmomi`` on the Ansible control node
(as the OS packages are usually out of date and incompatible) if you are planning to use any existing VMware modules.
* Hardware
* vCenter Server 6.5 and above
* Access / Credentials
* Ansible (or the target server) must have network access to either the vCenter server
* Username and Password for vCenter with required permissions
* VMware tools or openvm-tools with required dependencies like Perl installed on the given virtual machine
Caveats
=======
- All variable names and VMware object names are case sensitive.
- You need to use Python 2.7.9 version in order to use ``validate_certs`` option, as this version is capable of changing the SSL verification behaviors.
Example description
===================
User can run playbooks against VMware virtual machines using ``vmware_tools`` connection plugin.
In order work with ``vmware_tools`` connection plugin, you will need to specify hostvars for the given virtual machine.
For example, if you want to run a playbook on a virtual machine called ``centos_7`` located at ``/Asia-Datacenter1/prod/centos_7`` in the given vCenter, you will need to specify hostvars as follows:
.. code-block:: ini
[centos7]
host1
[centos7:vars]
# vmware_tools related variables
ansible_connection=vmware_tools
ansible_vmware_host=10.65.201.128
ansible_vmware_user=administrator@vsphere.local
ansible_vmware_password=Esxi@123$%
ansible_vmware_validate_certs=no
# Location of the virtual machine
ansible_vmware_guest_path=Asia-Datacenter1/vm/prod/centos_7
# Credentials
ansible_vmware_tools_user=root
ansible_vmware_tools_password=Secret123
Here, we are providing vCenter details and credentials for the given virtual machine to run the playbook on.
If your virtual machine path is ``Asia-Datacenter1/prod/centos_7``, you specify ``ansible_vmware_guest_path`` as ``Asia-Datacenter1/vm/prod/centos_7``. Please take a note that ``/vm`` is added in the virtual machine path, since this is a logical folder structure in the VMware inventory.
Let us now run following playbook,
.. code-block:: yaml
---
- name: Example showing VMware Connection plugin
hosts: centos7
tasks:
- name: Gather information about temporary directory inside VM
shell: ls /tmp
Since Ansible utilizes the ``vmware-tools`` or ``openvm-tools`` service capabilities running in the virtual machine to perform actions, in this use case it will be connecting directly to the guest machine.
For now, you will be entering credentials in plain text, but in a more advanced playbook this can be abstracted out and stored in a more secure fashion using :ref:`ansible-vault` or using `Ansible Tower credentials <https://docs.ansible.com/ansible-tower/latest/html/userguide/credentials.html>`_.
What to expect
--------------
Running this playbook can take some time, depending on your environment and network connectivity. When the run is complete you will see:
.. code-block:: yaml
{
"changed": true,
"cmd": "ls /tmp",
"delta": "0:00:00.005440",
"end": "2020-10-01 07:30:56.940813",
"rc": 0,
"start": "2020-10-01 07:30:56.935373",
"stderr": "",
"stderr_lines": [],
"stdout": "ansible_command_payload_JzWiL9\niso",
"stdout_lines": ["ansible_command_payload_JzWiL9", "iso", "vmware-root"]
}
Troubleshooting
---------------
If your playbook fails:
- Check if the values provided for username and password are correct.
- Check if the path of virtual machine is correct. Please mind that ``/vm/`` needs to be provided while specifying virtual machine location.

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Introduction to Ansible for VMware
**********************************
.. contents:: Topics
.. contents::
:local:
Introduction
============

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Using VMware dynamic inventory plugin
*************************************
.. contents:: Topics
.. contents::
:local:
VMware Dynamic Inventory Plugin
===============================

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Using Virtual machine attributes in VMware dynamic inventory plugin
*******************************************************************
.. contents:: Topics
.. contents::
:local:
Virtual machine attributes
==========================

@ -14,3 +14,4 @@ These scenarios teach you how to accomplish common VMware tasks using Ansible. T
scenario_remove_vm
scenario_find_vm_folder
scenario_vmware_http
scenario_vmware_tools_connection

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Troubleshooting Ansible for VMware
**********************************
.. contents:: Topics
.. contents::
:local:
This section lists things that can go wrong and possible ways to fix them.

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