session-27.txt

VPC
-------------
create VPC
create IGW
attach IGW to VPC
create subnet
create route table
create routes
attach route table subnet

create VPC

NAT Gateway
-----------
private servers can't connect to internet or can't accept connections from internet

traffic originating from servers --> outbound
traffic to the servers is called --> inbound

NAT gateway --> public subnet
this is to enable outbound internet traffic to the private servers.. general use cases fetching the updates, downloading packages from internet

IP keeps on changing, IP should not be changed. We need static IP.

Elastic IP == Static IP



resource names, variable names, output names these names related to terraform.

Name tags are related to user.


terraform names can have _ to seperate words

user names can have - to seperate words

main or this if only one resource...

tagging strategy
--------------------
expense-dev

<project-name>-<environment>

Terraform = true
Project = mention project name
Environment = dev/prod

1. create VPC
2. create IGW
3. attach IGW to VPC
4. create subnets (public/private/database)
	we decided every project inside joindevops.com should have HA
	So we should force to create 2 public/private/database subnets
	expense-public-us-east-1a
	expense-public-us-east-1b
	
1. create repo in github
2. clone in local laptop