PaivaX/MEI-Cloud-Computing-A

PHP

Title

Abstract:xxx

Papar Information

Title: Cloud computing project part A
Authors: José Santos and Rui Paiva
Preprint: https://arxiv.org/abs/xx
Full-preprint: paper position

Connections ubtitle:

Green - Sockets
Red - Load Balancer
Black - Database

Install & Dependence

Virtual Box
Vagrant

How to use

To get the machines up and runnning
```
vagrant up
```
After the machines are running connect to ansible vm
```
vagrant ssh ansible
```
In the vm terminal go to shared folder
```
cd ../../vagrant
```
Exchange ssh keys
```
ansible-playbook -i hosts 00_ssh_key_scan.yamll -v
ansible-playbook -i hosts 01_add_ssh_key.yml --ask-pass
```
Install consul in all the nodes and setup the files needed fo service discovery
```
ansible-playbook -i hosts 02_install_consul.yml -v
```
Install nginx in the lload balancer, setup consul templates with nginx
```
ansible-playbook -i hosts 03_install_nginx.yml -v
```
To activate the websockets server:
```
vagrant ssh sockets
cd /vagrant/ws
php websockets_server.php
```
Web pages: http://http://192.168.44.25/ Consul UI: http://192.168.44.70:8500/ui

Node Specs

Load Balancer

Ubuntu - Nginx with consul template

Web Server

Ubuntu - The web server only runs php code and serves the site.

Web Sockets

Ubuntu - The web sockets service was divided into a node of its own.

Database

Ubuntu - Posgresql

Service discovery

Ubuntu - Consul

Provision

Centos7 - Ansible