Effective DevOps with AWS

Using troposphere to create a Python script for our template

We will first install the troposphere library:

$ pip install troposphere  

Once the installation is done, you can then create a new file called helloworld-cf-template.py.

We will start our file by importing a number of definitions from the troposphere module:

"""Generating CloudFormation template.""" 
 
from troposphere import ( 
    Base64, 
    ec2, 
    GetAtt, 
    Join, 
    Output, 
    Parameter, 
    Ref, 
    Template, 
) 

We are also going to define a first variable that will make editing the code easier for the remainder of the book as we will create new scripts building on this initial template:

ApplicationPort = "3000" 

From a code standpoint, the first thing we will do is initialize a Template variable. By the ...