Ingress compliance means that every rule, certificate, and endpoint must align with regulatory policies. For GDPR, HIPAA, PCI DSS, or ISO 27001, that often includes:
- Enforcing TLS for all public endpoints.
- Restricting ingress paths to only necessary routes.
- Validating hostnames and ensuring they match approved domains.
- Logging all ingress requests with timestamps and metadata.
- Ensuring no sensitive data travels unencrypted through the cluster.
A compliant Ingress is not just configuration—it’s policy enforcement by design. Misconfigured rules can allow traffic that violates legal standards. Auditors will check for proof of encryption, access controls, and retention of logs.
TLS and Certificates
TLS termination at the Ingress controller must use strong ciphers and valid certificates. Self-signed or expired certificates fail compliance in most frameworks. Automated certificate rotation reduces human error and audit friction.
Access Control and Whitelisting
Ingress annotations and network policies can block unwanted sources. Compliance often demands IP whitelists for certain services. Kubernetes Network Policy should work alongside Ingress rules to restrict traffic.