{"id":"aks-immutable-os-options-os-guard-flatcar","text":"AKS offers two container-optimized immutable OS options: Azure Linux OS Guard (preview, Microsoft-built, FIPS/Trusted Launch/SELinux enforced) and Flatcar Container Linux (preview, vendor-neutral, CNCF-based). Both are read-only at runtime with cryptographic integrity protection.","truth_value":"IN","source":"entries/2026/03/10/aks-security.md","source_url":"","source_hash":"9e88c3c016f40527","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"aks-immutable-os-options-os-guard-flatcar","truth_value":"IN","reason":"premise"}]}}