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

Enforcing policy-as-code for container security using Open Policy Agent (OPA) and Conftest involves defining your security policies in code and ensuring that your containers comply with them before deployment. This allows for automated compliance checks in your CI/CD pipeline and ensures that only compliant containers are pushed to production. Below is an example of how to set this up.

# Define your OPA policy in Rego package container.security # Allow only images from the trusted repository allow { input.repository == "my-trusted-repo" } # Check for container resources prevent { input.resources.cpu > 2 input.resources.memory > 2048 } # Conftest test using this policy # test_containers.test test_containers { input := load_json("container.json") deny := container.security.allow[input] }

container security policy-as-code Open Policy Agent OPA Conftest compliance CI/CD automation

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