Kubedns Container Erstellung fehlgeschlagen mit der skydns-rc.yaml.base Vorlagendatei

Question

Ich benutze die skydns-rc.yaml.base (/ kubernetes-release-1.3/cluster/addons/dns/sky ..) Datei zu erstellen k8s DNS-Dienst. aber der Kubedns-Container konnte immer nicht erstellt werden.

das editierte Info-Element zeigte Gebrüll:

Namespace: kube-System                                                                     von             Standard
PILLAR__DNS__REPLICAS                       ersetzt   0.123.                                  von              
--domain = PILLAR__DNS__DOMAIN ersetzt.                                 ersetzt durch         --domain = cluster.local
PILLAR__FEDERATIONS__DOMAIN__MAP       gelöscht

die ganze skydns-rc.yaml.base Template-Datei zeigte Gebrüll:

andere Info:

der Cluster-Dienst IP-Bereich ist 10.254.0.0/16
die Domäne-Cluster.lokal
Namespace Standard ist

Nach Anweisung ausführen kubectl pod kube-dns-v18 Ergebnis beschreiben zeigte unten

Name:  kube-dns-v18-u7jgt 
Namespace: default 
Node:  centos-cjw-minion1/10.139.4.195 
Start Time: Mon, 18 Jul 2016 19:31:48 +0800 
Labels:  k8s-app=kube-dns,kubernetes.io/cluster-service=true,version=v18 
Status:  Running 
IP:  172.17.0.4 
Controllers: ReplicationController/kube-dns-v18 
Containers: 
    kubedns: 
    Container ID: docker://5f97e1d7185e327ac3cd5415c79b1b51da1987d8946fb243ee1758cdc4d53d29 
    Image:  iaasfree/kubedns-amd64:1.5 
    Image ID:  docker://sha256:a1490b272781a9921ba216778e741943e9b866114dae7e7e8980daebbc5ba7ed 
    Ports:  10053/UDP, 10053/TCP 
    Args: 
     --domain=cluster.local. 
     --dns-port=10053 
    QoS Tier: 
     memory: Burstable 
     cpu: Guaranteed 
    Limits: 
     cpu: 100m 
     memory: 200Mi 
    Requests: 
     cpu:  100m 
     memory:  100Mi 
    State:  Running 
     Started:  Mon, 18 Jul 2016 19:36:02 +0800 
    Last State:  Terminated 
     Reason:  Error 
     Exit Code: 255 
     Started:  Mon, 18 Jul 2016 19:34:52 +0800 
     Finished:  Mon, 18 Jul 2016 19:35:59 +0800 
    Ready:  False 
    Restart Count: 3 
    Liveness:  http-get http://:8080/healthz delay=60s timeout=5s period=10s #success=1 #failure=5 
    Readiness:  http-get http://:8081/readiness delay=30s timeout=5s period=10s #success=1 #failure=3 
    Environment Variables: 
    dnsmasq: 
    Container ID: docker://75ef5bc18dfe196438956c42f64a2e2d6fd408329408704f32534ce7b9252663 
    Image:  iaasfree/kube-dnsmasq-amd64:1.3 
    Image ID:  docker://sha256:8cb0646c9e984cf510ca70704154bee2f2c51cfb2e776f4357c52c1d17c2b741 
    Ports:  53/UDP, 53/TCP 
    Args: 
     --cache-size=1000 
     --no-resolv 
     --server=127.0.0.1#10053 
    QoS Tier: 
     cpu:  BestEffort 
     memory:  BestEffort 
    State:  Running 
     Started:  Mon, 18 Jul 2016 19:31:55 +0800 
    Ready:  True 
    Restart Count: 0 
    Environment Variables: 
    healthz: 
    Container ID: docker://e11626508ecd5b2cfae3e1eaa3284d75dae4160c113d7f28ce97cbd0185f032d 
    Image:  iaasfree/exechealthz-amd64:1.0 
    Image ID:  docker://sha256:f3b98b5b347af3254c82e3a0090cd324daf703970f3bb62ba8005020ddf5a156 
    Port:  8080/TCP 
    Args: 
     -cmd=nslookup kubernetes.default.svc.cluster.local 127.0.0.1 >/dev/null && nslookup kubernetes.default.svc.cluster.local 127.0.0.1:10053 >/dev/null 
     -port=8080 
     -quiet 
    QoS Tier: 
     cpu: Guaranteed 
     memory: Guaranteed 
    Limits: 
     memory: 20Mi 
     cpu: 10m 
    Requests: 
     cpu:  10m 
     memory:  20Mi 
    State:  Running 
     Started:  Mon, 18 Jul 2016 19:32:12 +0800 
    Ready:  True 
    Restart Count: 0 
    Environment Variables: 
Conditions: 
    Type  Status 
    Ready  False 
No volumes. 
Events: 
    FirstSeen LastSeen Count From    SubobjectPath   Type  Reason  Message 
    --------- -------- ----- ----    -------------   -------- ------  ------- 
    5m  5m  1 {default-scheduler }      Normal  Scheduled Successfully assigned kube-dns-v18-u7jgt to centos-cjw-minion1 
    4m  4m  1 {kubelet centos-cjw-minion1} spec.containers{kubedns} Normal  Created  Created container with docker id 5814904f6e09 
    4m  4m  1 {kubelet centos-cjw-minion1} spec.containers{dnsmasq} Normal  Pulled  Container image "iaasfree/kube-dnsmasq-amd64:1.3" already present on machine 
    4m  4m  1 {kubelet centos-cjw-minion1} spec.containers{kubedns} Normal  Started  Started container with docker id 5814904f6e09 
    4m  4m  1 {kubelet centos-cjw-minion1} spec.containers{dnsmasq} Normal  Created  Created container with docker id 75ef5bc18dfe 
    4m  4m  1 {kubelet centos-cjw-minion1} spec.containers{dnsmasq} Normal  Started  Started container with docker id 75ef5bc18dfe 
    4m  4m  1 {kubelet centos-cjw-minion1} spec.containers{healthz} Normal  Pulled  Container image "iaasfree/exechealthz-amd64:1.0" already present on machine 
    4m  4m  1 {kubelet centos-cjw-minion1} spec.containers{healthz} Normal  Created  Created container with docker id e11626508ecd 
    4m  4m  1 {kubelet centos-cjw-minion1} spec.containers{healthz} Normal  Started  Started container with docker id e11626508ecd 
    3m  3m  1 {kubelet centos-cjw-minion1} spec.containers{kubedns} Normal  Killing  Killing container with docker id 5814904f6e09: pod "kube-dns-v18-u7jgt_default(370b6791-4cdb-11e6-80f0-fa163ebb45ec)" container "kubedns" is unhealthy, it will be killed and re-created. 
</code> 

After execu statment “kubectl logs kube-dns-v18-yhk41 -c kubedns” showed bellow： 

<code>I0719 06:43:41.335795  1 dns.go:172] Ignoring error while waiting for service default/kubernetes: serializer for text/html; charset=utf-8 doesn't exist. Sleeping 1s before retrying. 
E0719 06:43:41.335928  1 reflector.go:216] pkg/dns/dns.go:155: Failed to list *api.Service: serializer for text/html; charset=utf-8 doesn't exist 
E0719 06:43:41.533705  1 reflector.go:216] pkg/dns/dns.go:154: Failed to list *api.Endpoints: serializer for text/html; charset=utf-8 doesn't exist 
I0719 06:43:41.534017  1 dns.go:439] Received DNS Request:kubernetes.default.svc.cluster.local., exact:false 
I0719 06:43:41.534048  1 dns.go:539] records:[], retval:[], path:[local cluster svc default kubernetes] 
I0719 06:43:42.336756  1 dns.go:172] Ignoring error while waiting for service default/kubernetes: serializer for text/html; charset=utf-8 doesn't exist. Sleeping 1s before retrying. 
E0719 06:43:42.336893  1 reflector.go:216] pkg/dns/dns.go:155: Failed to list *api.Service: serializer for text/html; charset=utf-8 doesn't exist 
E0719 06:43:42.534553  1 reflector.go:216] pkg/dns/dns.go:154: Failed to list *api.Endpoints: serializer for text/html; charset=utf-8 doesn't exist 

Answer 1

Sie müssen ein kube-master-url in args gesetzt. Zum Beispiel:

# command = "/kube-dns" 
    - --domain=fool.bar. 
    - --dns-port=10053 
    - --kube-master-url=http://8.9.6.4:8080