Catalog-deployment

This is a udacity project, its required to deploy your catalog application on AWS or Google cloud, and this file is a description on how the project is deployed in detailed steps.

Summary of host configuration for deployment

1. Changed SSH default port
2. Configured firewall to allow specific ports
3. Created user and added it to sudoers group
4. Forced Public key authentication
5. Setup some swap memory to avoid OOM error and configured the Linux kernel vm.swappiness to 10 to avoid moving unnecessary data to swap memory also set vm.vfs_cache_pressure to 50 for performance reasons for more details
6. Installed PostgreSQL and created a user for the application which has access to its database

Apache2 Installation and configuration:

Apache2 was installed and configured to serve to two virtual hosts (front-end and back-end), the front-end virtual host is listening on any request on port 80, and the back-end virtual host is listening on port 8080 only on localhost, so whenever a request comes to the front-end virtual host with /api path the reverse proxy will redirect the request to the back-end virtual host.

Redis Installation and configuration:

Redis was installed and configured the Linux kernel overcommit memory setting it to 1 to fix background saving fails with a fork() error for more reference.

Access details

• IP: 18.184.86.204
• URL of the web application: http://18.184.86.204
• SSH port 2200

List of third party resources

A list of third party resources used

• Udacity course Configuring Linux Web Servers
• mod_wsgi documentation
• Flask documentation
• Passing env varibles to mod_wsgi
• PostgreSQL documentation
• Redis administration guide