session-35.txt

Project Architecture
Application Architecture

Project --> rare
Application -> Subjected to frequent change

SG -> rare
SG Rule -> frequent

EC2, AMI, Launch template --> application

Expense --> Project
frontend, backend, database --> components

expense-infra-dev
	db-dev.daws78s.online
	backend-dev.daws78s.online
	frontend-dev.daws78s.online
expense-infra-prod

ansible server --> nodes

no need of ansible server, we will pull ansible playbooks directly from github

Open VPN
-----
ubuntu
openvpnas --> linux username
key based AMI

public/private key pair generate
imported public key into AWS
then we connect using private key

admin username:openvpn
password: Abcd@1234

*.app-dev.daws78s.online

cart.app-dev.daws78s.online
catalogu.app-dev.daws78s.online

application infra
-------------------
Create instance
configure it using Ansible
stop the server
take AMI
delete instance
target group
backend launch template
autoscaling
autoscaling policy
listener rule --> 80, 

backend.app-dev.daws78s.online --> backend target group