AWS: EC2 introduction

# Introducción a EC2

* Presentación: twitter de javi, web de capside, web de aws

* Aplicación a desplegar: https://thelounge.chat/

* Diagrama: red, vm con software, ip flotante, firewall 8080

* Login en AWS console

* Seleccionar región

* Presentar default vpc

* Presentar el IAM
* Crear policy EIPAdmin
```
{
	"Version": "2012-10-17",
	"Statement": [{
		"Action": [
			"ec2:AllocateAddress",
			"ec2:AssociateAddress",
			"ec2:DescribeAddresses",
			"ec2:DisassociateAddress"
		],
		"Resource": [
			"*"
		],
		"Effect": "Allow"
	}]
}
```

* Crear role lounge-chat-instance con la nueva policy EIPAdmin


* Presentar EC2

* Presentar elastic IP
* Crear EIP lounge-server

* Generar key: ssh-keygen -t rsa
* Subir public

* amazon linux, t2.micro, IAM role, auto-assign public ip + user-data, 8gb ssd, Name, Owner, Project, loung-chat-server-sg (22, 8080), launch (keypair)

```
#!/bin/sh

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.8/install.sh | bash
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
nvm install --lts
npm -g install thelounge

IP=<YOUR-VERY-OWN-ELASTIC-IP>
INSTANCE=$(curl http://169.254.169.254/latest/meta-data/instance-id)
aws ec2 associate-address --instance-id $INSTANCE --public-ip $IP --region eu-west-1

lounge start --host 0.0.0.0 --port 8080 --public
```

* Presentar IP/DNS en detalles
* Revisar log de arranque (settings)
* Acceder al chat
* Proponer paso a HA con ASG