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…atibility gVisor's default netstack mode processes TCP/IP in userspace (Sentry), bypassing Cilium's eBPF programs attached to veth pairs. This causes DNS and all egress traffic to fail — Cilium cannot see or enforce network policies on traffic from gVisor pods. Set gvisor.dev/network=host annotation on gVisor pods so Sentry forwards network syscalls to the pod's kernel network namespace. Traffic then flows through the standard veth + eBPF path, allowing Cilium to intercept and enforce policies normally. The pod still has its own network namespace — this is NOT pod-level hostNetwork. gVisor's syscall filtering and sandboxing remain intact.
…command - Add ingress rule to per-session CNP: only host node can reach sandboxd on port 2024. All other cluster-internal ingress is denied. - Add --allowed-hosts flag to run command for custom network allowlist when auto-creating a session.
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