How to integrate ansible-lint in venv with Ansible Language Extension

Background: No need to install ansible-lint system-wide

To make Ansible Language Extension fully function, users need to install ansible-lint. The easiest way to install ansible-lint is to install it system-wide as below:

# Fedora
## sudo dnf install python3-ansible-lint

# Ubuntu
## sudo apt install ansible-lint

However, installing Python packages system-wide is not always preferable because the it affects the whole system behavior. You can install ansible-lint in venv with normal permission, and integrate it with Ansible Language Extension instead.

How to use ansible-lint in venv

The outline is fairly simple.

1. Create a venv.
2. Install ansible-lint in the venv.
3. Configure path to ansible-lint and ansible executables in the extension settings.