aws-ruby

USAGE: ruby assignment.rb --instances num_of_instances \

--instance-type ec2_instance_type \

--allow-ssh-from allowed_ip_or_net_address --port port_to_open

Arguments are optional and can be escaped

Class TemplateCreator main methods:

1. prep_ec2(string, int)

This function prepares EC2Instance part of cfn template

with proper values that are fed as parameter, generates appropriate string

to be added inside Resources block

2. prep_sec_group(string, int)

This function prepares InstanceSecurityGroup part of cfn template

with proper values that are fed as parameter, generates appropriate string

to be added inside Resources block

3. insert_in_template(string)

This functiom adds generated strings to final cfn template in proper place

Based on general template, it finds second last occurance of } char before

which is the end of Resources block