0x0F-load_balancer

0x0F. Load balancer

0-custom_http_response_header

In this first task you need to configure web-02 to be identical to web-01. Fortunately, you built a Bash script during your web server project, and they’ll now come in handy to easily configure web-02. Remember, always try to automate your work!

Since we’re placing our web servers behind a load balancer for this project, we want to add a custom Nginx response header. The goal here is to be able to track which web server is answering our HTTP requests, to understand and track the way a load balancer works. More in the coming tasks.

Requirements:

• Configure Nginx so that its HTTP response contains a custom header (on web-01 and web-02)
  • The name of the custom HTTP header must be X-Served-By
  • The value of the custom HTTP header must be the hostname of the server Nginx is running on
• Write 0-custom_http_response_header so that it configures a brand new Ubuntu machine to the requirements asked in this task
• Ignore SC2154 for shellcheck

1-install_load_balancer

Install and configure HAproxy on your lb-01 server.

Requirements:

• Configure HAproxy so that it send traffic to web-01 and web-02
• Distribute requests using a roundrobin algorithm
• Make sure that HAproxy can be managed via an init script
• Make sure that your servers are configured with the right hostnames: [STUDENT_ID]-web-01 and [STUDENT_ID]-web-02. If not, follow this tutorial.
• For your answer file, write a Bash script that configures a new Ubuntu machine to respect above requirements

2-puppet_custom_http_response_header.pp

Just as in task #0, we’d like you to automate the task of creating a custom HTTP header response, but with Puppet.

• The name of the custom HTTP header must be X-Served-By
• The value of the custom HTTP header must be the hostname of the server Nginx is running on
• Write 2-puppet_custom_http_response_header.pp so that it configures a brand new Ubuntu machine to the requirements asked in this task