我试图内访问一个kubernetes吊舱(minikube-VM内)到外部动物园管理员/卡夫卡(外kubernetes域),基本上没有按没有工作。Kubernetes:从荚外部系统的访问不工作
首先,我有一个docker-image,它运行一个Spring-Boot应用程序,它试图在启动时连接端口2181/9092上的Kafka-Instance。由于我使用端点创建了一个服务,该服务指向应该修复路由的外部主机/ IP,但不幸的是它没有。
这里是服务/端点
apiVersion: v1
kind: Service
metadata:
name: ext-kafka
namespace: default
spec:
clusterIP: None
ports:
- port: 2181
name: zk
protocol: TCP
targetPort: 2181
- port: 9092
name: kafka
protocol: TCP
targetPort: 9092
---
apiVersion: v1
kind: Endpoints
metadata:
name: ext-kafka
namespace: default
subsets:
- addresses:
# 192.168.99.1 is the external IP
- ip: 192.168.99.1
ports:
- port: 2181
name: zk
- port: 9092
name: kafka
#
# HERE ARE THE DEPLOYMENTS/DEFINITIONS THAT THE SERVICES ARE INSTALLED
#
[[email protected] work]# kubectl get services
NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE
ext-kafka None <none> 2181/TCP,9092/TCP 2d
...
[[email protected] work]# kubectl get endpoints
NAME ENDPOINTS AGE
ext-kafka 192.168.99.1:2181,192.168.99.1:9092 2d
我检查了minikube VM iptables的,因为它指出,越来越软件包否认的定义。因此,清理并不能解决问题,因为它会在幕后自动重新创建。
$ iptables -L
....
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
KUBE-FIREWALL all -- anywhere anywhere
KUBE-SERVICES all -- anywhere anywhere /* kubernetes service portals */
...
Chain KUBE-FIREWALL (2 references)
target prot opt source destination
DROP all -- anywhere anywhere /* kubernetes firewall for dropping marked packets */ mark match 0x8000/0x8000
Chain KUBE-SERVICES (1 references)
target prot opt source destination
....
REJECT tcp -- anywhere anywhere /* default/server-command: has no endpoints */ ADDRTYPE match dst-type LOCAL tcp dpt:30021 reject-with icmp-port-unreachable
REJECT tcp -- anywhere 10.0.0.240 /* default/server-command: has no endpoints */ tcp dpt:webcache
....
另一种方法来缓解星座:
我与主机,在动物园管理员/卡夫卡应该运行 和ncat -l 192.168.99.1 2181 --keep-open
NCAT运行试图从minikube-VM连接与 telnet 192.168.99.1 2181
我得到'没有rotu主机'...
那么如何获得sovle的问题? 如何添加一个服务,它解决了iptables-问题? (我用的kubernetes从创建日期打造: “2017-05-10T15:48:59Z”)
BR
你可以ping'192.168.99.1'并且minikube vm上的'ip a'的输出是什么?你也确定**外部Zookeeper/Kafka **绑定与ip'192.168.99.1'接口吗? – surajd