README

Following are important variable and their possible values for creating AWS services with these modules. Although it is not mandatory to follow exactly same values these values help to set some guidelines and standardization for creating various AWS services.

environment

It represents the environment for which this component made for.
length 1 to 3 chars
all small case letters
Possible values

Value	Important Note
dev	component for Development environment
cit	component specific to Component Integration Testing
sit	component specific to System Integration Testing
uat	component specific to User Acceptance Testing
pre	component specific to Preprod environment
n	component which is not for production env
p	for Production environment

cost_centre

It represents an entity which will own cost for AWS component.
Any org can have following cost centres. following values are indicative.
all small case letters
length 1 to 4 chars

Possible Cost Centres	value
hr	hr
it	it
legal	lgl
finance	fin
wholesale	whsl
retail	rtl
manufacturing	mfg
banking	bank
investment	inv
marketing	mkt

project

One cost centre can have multiple projects.
length Max 5 chars

app_service

One Project can have multiple services/functions

seq_id

define unique number for the combination of environment,cost_centre,project and app_service.
it is numeric value
max 3 digits i.e. 999

version_id

version of this component.everytime when we are updating this component we need to increment it.

region

indicates region in which component is present.
Possible values :- https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Concepts.RegionsAndAvailabilityZones.html
e.g. for Europe ireland :- eu-west-1

region_id

short indicator for region
it is fixed 4 char.
for eu-west-1 it is euw1

compliance

possible values pci or none

confidentiality

Possible values	Notes
confidential	confidential. access only to a specific group of resources in Org.
internal	not available to public
public	accessible to everyone

build_date

date on this component built
we need to change this value for each time when we are building component
format ddmmyyyy e.g. 27122017"

maintenance_day

indication for day when this component should undergo maintenance
3 char fixed

Possible Values	Notes
mon	Monday
tue	Tuesday
wed	Wednesday
thu	Thursday
fri	Friday
sat	Saturday
sun	Sunday

maintenance_time

indication for time when this component should undergo maintenance
4 digit fixed.
it is 24 hours format. e.g. 1330 i.e. 1 pm 30 minutes.

app_role

On Macro level AWS services are classified as Computing, Networking,Storage, RDS etc
addition of this tag will help us to classify component mainly from cost perspective.

Version History of this module

Version	Notes
0.1	AWS VPC

polganesh/terraform-modules