Kubernetes ACS引擎:集装箱(吊舱)没有互联网接入

Question

我正在使用Kubernetes集群，使用ACS发动机部署在Azure上。我的集群由5个节点组成。

• 1主服务器(unix VM) (v1.6.2)
• 2 unix代理(v1.6.2)
• 2个windows代理程序(v1.6.0- agent .1.2959+451473d43a2072)

我已经创建了一个由以下YAML定义的unix ：

Name:           ping-with-unix
Node:           k8s-linuxpool1-25103419-0/10.240.0.5
Start Time:     Fri, 30 Jun 2017 14:27:28 +0200
Status:         Running
IP:             10.244.2.6
Controllers:    <none>
Containers:
  ping-with-unix-2:
    Container ID:       
    Image:              willfarrell/ping
    Port:
    State:              Running
      Started:          Fri, 30 Jun 2017 14:27:29 +0200
    Ready:              True
    Restart Count:      0
    Environment:
      HOSTNAME: google.com
    Mounts:
      /var/run/secrets/kubernetes.io/serviceaccount from default-token-1nrh5 (ro)
Conditions:
  Type          Status
  Initialized   True
  Ready         True
  PodScheduled  True
Volumes:
  default-token-1nrh5:
    Type:       Secret (a volume populated by a Secret)
    SecretName: default-token-1nrh5
    Optional:   false
QoS Class:      BestEffort
Node-Selectors: beta.kubernetes.io/os=linux
Tolerations:    <none>
Events:         <none>

这个吊舱不能上网。

2017-06-30T12:27:29.512885000Z ping google.com every 300 sec
2017-06-30T12:27:29.521968000Z PING google.com (172.217.17.78): 56 data bytes
2017-06-30T12:27:39.698081000Z --- google.com ping statistics ---
2017-06-30T12:27:39.698305000Z 1 packets transmitted, 0 packets received, 100% packet loss

我创建了第二个吊舱，目标是windows容器，具有自定义的码头映像。这个映像实例化一个HttpClient并请求一个端点。它也没有互联网接入。我可以访问容器来运行交互式PowerShell。我不能访问任何DNS (由于缺乏互联网访问)。

PS C:\app> ping github.com
Ping request could not find host github.com. Please check the name and try again.
PS C:\app> ping 192.30.253.112

Pinging 192.30.253.112 with 32 bytes of data:
Request timed out.
Request timed out.

Ping statistics for 192.30.253.112:
    Packets: Sent = 2, Received = 0, Lost = 2 (100% loss),
Control-C

我需要配置什么才能让我的容器访问互联网？

备注:我没有定义任何网络策略。

Answer 1

我使用api版本'2017-07-01‘和kubernetes版本'1.6.6’更新了我的集群。我的unix和windows pods都有互联网接入。

注意，对于Windows吊舱：

• 在吊舱开始后2到3分钟可以上网
• 我不能将DnsPolicy设置为“默认”，只有"ClusterFirst“或"ClusterFirstWithHostNet”才能工作。