Docker and Ansible Questions

[techlists at phpcoderusa.com]

Alexander J Snyder,

You use Docker from what I understand.

You are a senior Linux admin and I assume you are working with Ansible 
to automate something to do with Linux servers.

I am a semi-retired old guy who is a PHP developer.  I use Ubuntu to 
create local web servers for testing and development of PHP. I'm a 
little rusty since I am just now taking the leap from CentOS to Ubuntu 
for LAMP web servers. This requires PHP-FPM. I'm also a little rusty 
with PHP since I have not done any real programming in several years.

Given my station please tell me several things:

1) How do I benefit from using Docker?

2) How do I benefit from using Ansible?

3) How would I use Ansible as a PHP developer?

4) What is the learning curve for Docker for someone like me?

5) What is the learning curve for Ansible for someone like me?

Thanks!!
Keith