How do I enforce policy-as-code for HAProxy using OPA and Conftest?

Enforcing policy-as-code for HAProxy can be achieved using Open Policy Agent (OPA) and Conftest. OPA allows you to write policies in a declarative language (Rego), while Conftest helps in testing these policies against configuration files. Here’s how you can implement it:

First, you need to define your policies in a .rego file. After that, you'll use Conftest to evaluate the HAProxy configuration against these policies to ensure compliance.

// Define a simple policy in Rego package haproxy default allow = false allow { input.section == "frontend" input.option == "bind" input.address == "0.0.0.0" } // Example of HAProxy configuration file frontend http_front bind *:80 default_backend http_back backend http_back server server1 192.168.1.1:80 maxconn 32

HAProxy policy-as-code Open Policy Agent OPA Conftest compliance Rego configuration testing

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