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Сергей Дударев's questions

Martin Hope
Сергей Дударев
Asked: 2024-10-07 20:28:45 +0800 CST
  • 5

Good afternoon, I ran into the problem that it is not possible to attach MetalLB to K3S I have a cluster with 3 masters and 3 workers

NAME            STATUS   ROLES                       AGE    VERSION
master-node-1   Ready    control-plane,etcd,master   4d2h   v1.30.5+k3s1
master-node-2   Ready    control-plane,etcd,master   4d1h   v1.31.1+k3s1
master-node-3   Ready    control-plane,etcd,master   4d1h   v1.31.1+k3s1
worker-node-1   Ready    <none>                      4d1h   v1.31.1+k3s1
worker-node-2   Ready    <none>                      4d     v1.31.1+k3s1
worker-node-3   Ready    <none>                      4d     v1.31.1+k3s1

initially, I tried to install MetalLB in this way

kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.12.1/manifests/namespace.yaml
kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.12.1/manifests/metallb.yaml

config

# config.yml
apiVersion: v1
kind: ConfigMap
metadata:
  namespace: metallb-system
  name: config
data:
  config: |
    address-pools:
    - name: default
      protocol: layer2
      addresses:
      - 192.168.0.170-192.168.0.180

with this approach Load Balancer was working, it was not stable on the tap, with a 50% probability it was impossible to enter the site. Then I found out that this is an outdated approach. I tried a new one

kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.14.5/config/manifests/metallb-native.yaml

config

apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: k3s-lb-pool
  namespace: metallb
spec:
  addresses:
  - 192.168.0.170-192.168.0.180
  autoAssign: true
---
apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
  name: k3s-lb-pool
  namespace: metallb

but I get an error

Error from server (InternalError): error when creating "metalLB-config.yaml": Internal error occurred: failed calling webhook "ipaddresspoolvalidationwebhook.metallb.io": failed to call webhook: Post "https://metallb-webhook-service.metallb.svc:443/validate-metallb-io-v1beta1-ipaddresspool?timeout=10s": no endpoints available for service "metallb-webhook-service"
Error from server (InternalError): error when creating "metalLB-config.yaml": Internal error occurred: failed calling webhook "l2advertisementvalidationwebhook.metallb.io": failed to call webhook: Post "https://metallb-webhook-service.metallb.svc:443/validate-metallb-io-v1beta1-l2advertisement?timeout=10s": no endpoints available for service "metallb-webhook-service"

but the namespace is still working properly

root@master-node-1:~# kubectl get pod -n=metallb-system
NAME                          READY   STATUS    RESTARTS        AGE
controller-86f5578878-9ddsr   1/1     Running   2 (3m31s ago)   4m57s
speaker-5j47x                 1/1     Running   0               4m56s
speaker-6drpd                 1/1     Running   0               4m56s
speaker-ccpmq                 1/1     Running   0               4m56s
speaker-jfpch                 1/1     Running   1 (3m12s ago)   4m56s
speaker-mps8b                 1/1     Running   0               4m57s
speaker-t9lx2                 1/1     Running   0               4m56s

(I apologize in advance English is not my native language)

kubernetes