Check Risk WAF is an all-in-one Web Application Firewall with Anti-Bot and Anti-DDoS protection at L3, L4, and L7. Available on-premises or as SaaS, it protects web apps against OWASP Top 10 attacks, CWE vulnerabilities, botnets, and DoS/DDoS. Free and unlimited for everyone, forever for personal, non-commercial use.
Automated ACME SSL/TLS certificate management built around Azure Key Vault
This is an ingress controller that can be run on Azure Kubernetes Service (AKS) to allow an Azure Application Gateway to act as the ingress for an AKS cluster.