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Enable hubble.

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This commit is contained in:
Tom Alexander
2026-01-04 12:13:58 -05:00
parent 02dbdb79bc
commit 8020f804db
3 changed files with 26 additions and 0 deletions
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13
nix/kubernetes/roles/firewall/files/my-fw.nft
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@@ -71,6 +71,15 @@ set node-to-node-ports {
}
}
set pod-to-node-ports {
# Ports open for nodes sending packets to nodes
type inet_proto . inet_service
flags constant, interval
elements = {
tcp . 4244 # hubble ui
}
}
chain rpfilter {
type filter hook prerouting priority mangle + 10; policy drop;
meta nfproto ipv4 udp sport . udp dport { 68 . 67, 67 . 68 } accept comment "DHCPv4 client/server"
@@ -114,6 +123,10 @@ chain input-allow {
# Allow node to node
ip saddr @node-cidr-ipv4 ip daddr @node-cidr-ipv4 meta l4proto . th dport @node-to-node-ports accept
ip6 saddr @node-cidr-ipv6 ip6 daddr @node-cidr-ipv6 meta l4proto . th dport @node-to-node-ports accept
# Allow pod to node
ip saddr @pod-cidr-ipv4 ip daddr @node-cidr-ipv4 meta l4proto . th dport @pod-to-node-ports accept
ip6 saddr @pod-cidr-ipv6 ip6 daddr @node-cidr-ipv6 meta l4proto . th dport @pod-to-node-ports accept
}
chain forward {