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Static IP Address Not Assignable to Load Balancer in Google Cloud

6/27/2019

I am trying to assign a static IP address to my Traefik ingress load balancer, but always get the same response on Google Cloud:

Error creating load balancer (will retry): failed to ensure load   balancer for service default/traefik-service: requested ip   "35.185.139.44" is neither static nor assigned to the LB
coffee:gke Steven$ glcoud compute addresses list

I do notice all static are in the RESERVED and non say IN USE

# Declare Traefik ingress service
kind: Service
apiVersion: v1
metadata:
  name: traefik-service
spec:
  selector:
   app: traefik-gke-demo
   tier: reverse-proxy
  ports:
   - port: 80
     name: http
   - port: 443
     name: https
   - port: 8080
     name: admin
   type: LoadBalancer
   loadBalancerIP:  35.185.xx.xx

-- Steven Smart

gcloud

google-kubernetes-engine

kubernetes

traefik

traefik-ingress

2 Answers

6/28/2019

Service declaration is correct, Google Container Engine running Kubernetes v1.1 supports loadBalancerIP, you just need to created static IP for your project beforehand, i.e.

gcloud compute addresses create traefik-static-lb

gcloud compute addresses list

Once reserved, create LB service

UPD:

Here is an example of my LB service with assigned static IP:

sukhoversha@sukhoversha:~/GCP$ gcloud compute addresses list
NAME            ADDRESS/RANGE   TYPE      PURPOSE  NETWORK  REGION        SUBNET  STATUS
test-static-ip  35.198.94.139   EXTERNAL                    europe-west3          IN_USE


sukhoversha@sukhoversha:~/GCP$ kk get svc rabbitmq-management
NAME                  TYPE           CLUSTER-IP      EXTERNAL-IP     PORT(S)           AGE
rabbitmq-management   LoadBalancer   10.59.241.225   35.198.94.139   15672:31728/TCP   4d


sukhoversha@sukhoversha:~/GCP$ kk get svc rabbitmq-management -oyaml 
apiVersion: v1
kind: Service
metadata:
  labels:
    app: rabbitmq
  name: rabbitmq-management
  namespace: default
spec:
  clusterIP: 10.59.241.225
  externalTrafficPolicy: Cluster
  loadBalancerIP: 35.198.94.139
  ports:
  - name: http
    nodePort: 31728
    port: 15672
    protocol: TCP
    targetPort: 15672
  selector:
    app: rabbitmq
  sessionAffinity: None
  type: LoadBalancer

-- A_Suh

Source: StackOverflow

6/27/2019

Kubernetes Engine will auto-magically provision a TCP (!) load-balancer for you using the Google Cloud Load-Balancer (GCLB) when you apply a Service spec with type: LoadBalancer

So, remove loadBalancerIP: 35.185.139.44 and kubectl apply --filename=... without it, wait briefly and then kubectl get service/traefik-service and you should see that the LB provisions the service for you.

Alternatively:

kubectl get services \
--selector=app=traefik-gke-demo,tier=reverse-proxy \
--output=jsonpath="{.status.loadBalancer.ingress[0].ip}"

and some variant of the following to confirm the load-balancer is provisioned:

gcloud compute forwarding-rules list \
--format="value(IPAddress) \
--project=[[YOUR-PROJECT]]

NB Using Service this way will provision a TCP load-balancer. If you would prefer an HTTP|L7 load-balancer, then you should use an Ingress.

-- DazWilkin

Source: StackOverflow

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Static IP Address Not Assignable to Load Balancer in Google Cloud

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