mysql-mha-haproxy-ubuntu

[mysql-mha-haproxy-ubuntu](https://github.com/Azure/azure-quickstart-templates/tree/master/mysql-mha-haproxy-ubuntu)
### Question

I'm trying to modify this template in order to deploy it into an existing network and subnet but and not being able to do so. Is there a list of steps I could follow in order to do so. This is a forked copy of the repo https://github.com/pdiniz13/azure-quickstart-templates/tree/master/mysql-mha-haproxy-ubuntu which has the changes i've tried to make.

Read the mysql-mha-haproxy-ubuntu template and compare it with the linked fork, focusing first on how the template defines or consumes the network and subnet. Done means documenting or enabling the steps needed to deploy the template into an existing network and subnet.

Written by the indexing model from the issue text.