arthur0 / k8s-federation-tool

On-Premise Kubernetes Federation

This project was moved to: https://github.com/ufcg-lsd/k8s-onpremise-federation

k8s-federation-tool's Issues

kubefed coredns can not resolved nginx.default.federation.svc.zone.region.example.com but can resolved nginx.default.federation

Hi:
I use kubefed init a federation cluster and deploy a nginx service with nginx backend.
when i check dns , i found nslookup nginx.default.federation return ok, but nslookup nginx.default.federation.svc.baremetal-1.baremetal.example.com can't resolved. can someone help me?
details below:

federation in none-cloud env
two region: openstack, baremetal
two zone: openstack-1, baremetal-1
coredns address: 192.168.250.33:30242 

nslookup nginx.default.federaion

Server:    10.96.0.10
Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local

Name:      nginx.default.federation
Address 1: 10.100.147.78 nginx.default.svc.cluster.local

nslookup nginx.default.federation.svc.baremetal-1.baremetal.example.com

Server:    10.96.0.10
Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local

nslookup: can't resolve 'nginx.default.federation.svc.baremetal-1.baremetal.example.com'

kubectl get deployment kube-dns -n kube-system -o yaml

# Please edit the object below. Lines beginning with a '#' will be ignored,
# and an empty file will abort the edit. If an error occurs while saving this file will be
# reopened with the relevant failures.
#
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  annotations:
    deployment.kubernetes.io/revision: "3"
    kubectl.kubernetes.io/last-applied-configuration: |
  creationTimestamp: 2017-06-07T01:57:16Z
  generation: 3
  labels:
    k8s-app: kube-dns
  name: kube-dns
  namespace: kube-system
  resourceVersion: "30731"
  selfLink: /apis/extensions/v1beta1/namespaces/kube-system/deployments/kube-dns
  uid: a1ab9270-4b24-11e7-ba2b-fa163ed547c0
spec:
  replicas: 1
  selector:
    matchLabels:
      k8s-app: kube-dns
  strategy:
    rollingUpdate:
      maxSurge: 10%
      maxUnavailable: 0
    type: RollingUpdate
  template:
    metadata:
      annotations:
        scheduler.alpha.kubernetes.io/critical-pod: ""
      creationTimestamp: null
      labels:
        k8s-app: kube-dns
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: beta.kubernetes.io/arch
                operator: In
                values:
                - amd64
      containers:
      - args:
        - --domain=cluster.local.
        - --dns-port=10053
        - --config-dir=/kube-dns-config
        - --v=2
        env:
        - name: PROMETHEUS_PORT
          value: "10055"
        image: gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.1
        imagePullPolicy: IfNotPresent
        livenessProbe:
          failureThreshold: 5
          httpGet:
            path: /healthcheck/kubedns
            port: 10054
            scheme: HTTP
          initialDelaySeconds: 60
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 5
        name: kubedns
        ports:
        - containerPort: 10053
          name: dns-local
          protocol: UDP
        - containerPort: 10053
          name: dns-tcp-local
          protocol: TCP
        - containerPort: 10055
          name: metrics
          protocol: TCP
        readinessProbe:
          failureThreshold: 3
          httpGet:
            path: /readiness
            port: 8081
            scheme: HTTP
          initialDelaySeconds: 3
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 5
        resources:
          limits:
            memory: 170Mi
          requests:
            cpu: 100m
            memory: 70Mi
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /kube-dns-config
          name: kube-dns-config
      - args:
        - -v=2
        - -logtostderr
        - -configDir=/etc/k8s/dns/dnsmasq-nanny
        - -restartDnsmasq=true
        - --
        - -k
        - --cache-size=1000
        - --log-facility=-
        - --server=/example.com./192.168.250.33#30242 
        - --server=/cluster.local/127.0.0.1#10053
        - --server=/in-addr.arpa/127.0.0.1#10053
        - --server=/ip6.arpa/127.0.0.1#10053
        image: gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.1
        imagePullPolicy: IfNotPresent
        livenessProbe:
          failureThreshold: 5
          httpGet:
            path: /healthcheck/dnsmasq
            port: 10054
            scheme: HTTP

Thanks all.