Add ipset kernel modules for k3s NetworkPolicy support#51
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kube-router (k3s embedded network policy controller) requires ipset kernel support to enforce NetworkPolicy rules. Without these modules, kube-router silently skips starting the network policy controller with: "Skipping network policy controller start, ipset save failed" Adds CONFIG_IP_SET and related hash/bitmap type modules, plus xt_set (iptables set match), xt_physdev, and xt_nflog.
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Summary
CONFIG_IP_SETand related hash/bitmap type kernel modules todstack-docker.cfgkernel-module-ip-set-*,kernel-module-xt-set,kernel-module-xt-nflog,kernel-module-xt-physdevpackages to rootfsProblem
When running k3s in a sysbox container on dstack 0.5.8, kube-router silently skips starting the network policy controller:
Root cause:
CONFIG_IP_SETis not set in the dstack kernel, so theip_setnetlink interface is unavailable.Test plan
cd build && ../build.sh guest)