Skip to content

debug node local dns #432

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
squat wants to merge 2 commits into
base: main
Choose a base branch
from
Open

debug node local dns #432

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
f9dd60b
test(e2e): install node-local-dns to fix DNS issues
squat Feb 19, 2026
3c50f83
debug: node-local-dns
squat Feb 23, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 8 additions & 1 deletion e2e/lib.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -135,7 +135,14 @@ create_cluster() {
block_until_ready_by_name default curl || return 1
_kubectl taint node $KIND_CLUSTER-control-plane node-role.kubernetes.io/control-plane:NoSchedule-
_kubectl apply -f https://raw.githubusercontent.com/kilo-io/adjacency/main/example.yaml
block_until_ready_by_name default adjacency
block_until_ready_by_name default adjacency || return 1
# Install node-local-dns
# shellcheck disable=SC2155
local kubedns=$(_kubectl get svc kube-dns -n kube-system -o jsonpath='{.spec.clusterIP}')
local localdns=169.254.20.10
local domain=cluster.local
curl -L https://raw.githubusercontent.com/kubernetes/kubernetes/82a636f1f3c27f511221642d13d91dd09d111fb3/cluster/addons/dns/nodelocaldns/nodelocaldns.yaml | sed "s/__PILLAR__LOCAL__DNS__/$localdns/g; s/__PILLAR__DNS__DOMAIN__/$domain/g; s/__PILLAR__DNS__SERVER__/$kubedns/g" | _kubectl apply -f -
block_until_ready kube_system k8s-app=node-local-dns
}

delete_cluster () {
Expand Down
1 change: 1 addition & 0 deletions pkg/mesh/routes.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -334,6 +334,7 @@ func (t *Topology) Rules(cni, iptablesForwardRule bool) iptables.RuleSet {
rules.AddToAppend(iptables.NewIPv6Chain("nat", "KILO-NAT"))
if cni {
rules.AddToPrepend(iptables.NewRule(iptables.GetProtocol(t.subnet.IP), "nat", "POSTROUTING", "-s", t.subnet.String(), "-m", "comment", "--comment", "Kilo: jump to KILO-NAT chain", "-j", "KILO-NAT"))
rules.AddToPrepend(iptables.NewRule(iptables.GetProtocol(t.privateIP.IP), "nat", "POSTROUTING", "-s", t.privateIP.String(), "-m", "comment", "--comment", "Kilo: jump to KILO-NAT chain", "-j", "KILO-NAT"))
// Some linux distros or docker will set forward DROP in the filter table.
// To still be able to have pod to pod communication we need to ALLOW packets from and to pod CIDRs within a location.
// Leader nodes will forward packets from all nodes within a location because they act as a gateway for them.
Expand Down
Loading