Describe_kube_dns

[root@node1 kubespray-2.6.0]# kubectl describe po kube-dns-69f4c8fc58-lx9hh -n kube-system
Name:           kube-dns-69f4c8fc58-lx9hh
Namespace:      kube-system
Node:           node1/10.10.10.105
Start Time:     Fri, 16 Nov 2018 16:14:00 -0500
Labels:         k8s-app=kube-dns
                pod-template-hash=2590749714
Annotations:    scheduler.alpha.kubernetes.io/critical-pod=
Status:         Running
IP:             10.233.102.132
Controlled By:  ReplicaSet/kube-dns-69f4c8fc58
Containers:
  kubedns:
    Container ID:  docker://cd98936facaba10675f79838e7a3fa5e9668b2fbc64a9f3d364b3dc925580167
    Image:         gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.10
    Image ID:      docker://sha256:55ffe31ac5789896865300074e914ff3b699050663a096f757f8ecc1d71c8aad
    Ports:         10053/UDP, 10053/TCP, 10055/TCP
    Host Ports:    0/UDP, 0/TCP, 0/TCP
    Args:
      --domain=cluster.local.
      --dns-port=10053
      --config-dir=/kube-dns-config
      --v=2
    State:          Running
      Started:      Fri, 16 Nov 2018 16:16:24 -0500
    Last State:     Terminated
      Reason:       Error
      Exit Code:    255
      Started:      Fri, 16 Nov 2018 16:15:02 -0500
      Finished:     Fri, 16 Nov 2018 16:16:03 -0500
    Ready:          False
    Restart Count:  2
    Limits:
      memory:  170Mi
    Requests:
      cpu:      100m
      memory:   70Mi
    Liveness:   http-get http://:10054/healthcheck/kubedns delay=60s timeout=5s period=10s #success=1 #failure=5
    Readiness:  http-get http://:8081/readiness delay=3s timeout=5s period=10s #success=1 #failure=3
    Environment:
      PROMETHEUS_PORT:  10055
    Mounts:
      /kube-dns-config from kube-dns-config (rw)
      /var/run/secrets/kubernetes.io/serviceaccount from kube-dns-token-dtttp (ro)
  dnsmasq:
    Container ID:  docker://48b8c098f913c747192621256f136a0d2417eabd4fef6f2ae56a750c81069002
    Image:         gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.10
    Image ID:      docker://sha256:6816817d9dce03e877dc1e5535d6e0a5628e607c77cfc2bc588c2a1a1cd49ed4
    Ports:         53/UDP, 53/TCP
    Host Ports:    0/UDP, 0/TCP
    Args:
      -v=2
      -logtostderr
      -configDir=/etc/k8s/dns/dnsmasq-nanny
      -restartDnsmasq=true
      --
      -k
      --cache-size=1000
      --log-facility=-
      --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
    State:          Running
      Started:      Fri, 16 Nov 2018 16:16:23 -0500
    Last State:     Terminated
      Reason:       Error
      Exit Code:    137
      Started:      Fri, 16 Nov 2018 16:14:02 -0500
      Finished:     Fri, 16 Nov 2018 16:16:23 -0500
    Ready:          True
    Restart Count:  1
    Requests:
      cpu:        150m
      memory:     20Mi
    Liveness:     http-get http://:10054/healthcheck/dnsmasq delay=60s timeout=5s period=10s #success=1 #failure=5
    Environment:  <none>
    Mounts:
      /etc/k8s/dns/dnsmasq-nanny from kube-dns-config (rw)
      /var/run/secrets/kubernetes.io/serviceaccount from kube-dns-token-dtttp (ro)
  sidecar:
    Container ID:  docker://497bebcdaefc3105ed16065f39eef166acb00ae65aafda43c7ac57c40d9f5605
    Image:         gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.10
    Image ID:      docker://sha256:8a7739f672b49db46e3a8d5cdf54df757b7559a00db9de210b4af1aa3397020f
    Port:          10054/TCP
    Host Port:     0/TCP
    Args:
      --v=2
      --logtostderr
      --probe=kubedns,127.0.0.1:10053,kubernetes.default.svc.cluster.local,5,A
      --probe=dnsmasq,127.0.0.1:53,kubernetes.default.svc.cluster.local,5,A
    State:          Running
      Started:      Fri, 16 Nov 2018 16:16:31 -0500
    Last State:     Terminated
      Reason:       Error
      Exit Code:    2
      Started:      Fri, 16 Nov 2018 16:15:49 -0500
      Finished:     Fri, 16 Nov 2018 16:16:30 -0500
    Ready:          True
    Restart Count:  2
    Requests:
      cpu:        10m
      memory:     20Mi
    Liveness:     http-get http://:10054/metrics delay=60s timeout=5s period=10s #success=1 #failure=5
    Environment:  <none>
    Mounts:
      /var/run/secrets/kubernetes.io/serviceaccount from kube-dns-token-dtttp (ro)
Conditions:
  Type           Status
  Initialized    True
  Ready          False
  PodScheduled   True
Volumes:
  kube-dns-config:
    Type:      ConfigMap (a volume populated by a ConfigMap)
    Name:      kube-dns
    Optional:  true
  kube-dns-token-dtttp:
    Type:        Secret (a volume populated by a Secret)
    SecretName:  kube-dns-token-dtttp
    Optional:    false
QoS Class:       Burstable
Node-Selectors:  <none>
Tolerations:     CriticalAddonsOnly
                 node-role.kubernetes.io/master:NoSchedule
                 node.kubernetes.io/not-ready:NoExecute for 300s
                 node.kubernetes.io/unreachable:NoExecute for 300s
Events:
  Type     Reason                 Age              From               Message
  ----     ------                 ----             ----               -------
  Normal   SuccessfulMountVolume  3m               kubelet, node1     MountVolume.SetUp succeeded for volume "kube-dns-config"
  Normal   SuccessfulMountVolume  3m               kubelet, node1     MountVolume.SetUp succeeded for volume "kube-dns-token-dtttp"
  Normal   Scheduled              3m               default-scheduler  Successfully assigned kube-dns-69f4c8fc58-lx9hh to node1
  Normal   Pulled                 3m               kubelet, node1     Container image "gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.10" already present on machine
  Normal   Created                3m               kubelet, node1     Created container
  Normal   Started                3m               kubelet, node1     Started container
  Normal   Started                3m               kubelet, node1     Started container
  Normal   Pulled                 3m               kubelet, node1     Container image "gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.10" already present on machine
  Normal   Created                3m               kubelet, node1     Created container
  Normal   Created                2m (x2 over 3m)  kubelet, node1     Created container
  Normal   Pulled                 2m (x2 over 3m)  kubelet, node1     Container image "gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.10" already present on machine
  Normal   Started                2m (x2 over 3m)  kubelet, node1     Started container
  Warning  Unhealthy              1m (x7 over 2m)  kubelet, node1     Readiness probe failed: Get http://10.233.102.132:8081/readiness: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
  Warning  Unhealthy              1m (x2 over 1m)  kubelet, node1     Liveness probe failed: Get http://10.233.102.132:10054/metrics: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
  Warning  Unhealthy              1m (x2 over 1m)  kubelet, node1     Liveness probe failed: Get http://10.233.102.132:10054/healthcheck/dnsmasq: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)