无法通过clusterIP访问Kubernetes多容器pod

我在docker-machine上使用Kubernetes v1.2.2，我想从另一个在同一节点上运行的普通单容器pod连接到一个多容器pod .

每个pod都有一个提供clusterIP的服务 . 我可以通过相应服务的clusterIP从多容器窗格（postgres-bw-service）访问单容器窗格（postgres-service），但反之亦然 . 我检查了kube-proxy日志，发现没有为我的多容器pod的服务设置服务 endpoints ：

I0408 16:20:06.693273       1 iptables.go:177] Could not connect to D-Bus system bus: dial unix /var/run/dbus/system_bus_socket: no such file or directory
E0408 16:20:06.703401       1 server.go:340] Can't get Node "default", assuming iptables proxy: Get http://127.0.0.1:8080/api/v1/nodes/default: dial tcp 127.0.0.1:8080: connection refused
I0408 16:20:06.711666       1 server.go:200] Using iptables Proxier.
I0408 16:20:06.712420       1 server.go:213] Tearing down userspace rules.
I0408 16:20:06.822631       1 conntrack.go:36] Setting nf_conntrack_max to 262144
I0408 16:20:06.822833       1 conntrack.go:41] Setting conntrack hashsize to 65536
I0408 16:20:06.823646       1 conntrack.go:46] Setting nf_conntrack_tcp_timeout_established to 86400
E0408 16:20:06.826470       1 event.go:202] Unable to write event: 'Post http://127.0.0.1:8080/api/v1/namespaces/default/events: dial tcp 127.0.0.1:8080: connection refused' (may retry after sleeping)
E0408 16:20:08.627546       1 event.go:202] Unable to write event: 'Post http://127.0.0.1:8080/api/v1/namespaces/default/events: dial tcp 127.0.0.1:8080: connection refused' (may retry after sleeping)
E0408 16:20:18.629129       1 event.go:202] Unable to write event: 'Post http://127.0.0.1:8080/api/v1/namespaces/default/events: dial tcp 127.0.0.1:8080: connection refused' (may retry after sleeping)
I0408 16:20:20.925349       1 proxier.go:484] Setting endpoints for "default/kubernetes:https" to [10.0.2.15:6443]
I0408 16:20:20.925592       1 proxier.go:484] Setting endpoints for "default/postgres-service:postgres-tcp" to [172.17.0.3:5432]
I0408 16:20:20.925841       1 proxier.go:565] Not syncing iptables until Services and Endpoints have been received from master
I0408 16:20:20.931213       1 proxier.go:421] Adding new service "default/kubernetes:https" at 10.0.0.1:443/TCP
I0408 16:20:20.931901       1 proxier.go:421] Adding new service "default/postgres-bw-service:postgres" at 10.0.0.139:5432/TCP
I0408 16:20:20.932084       1 proxier.go:421] Adding new service "default/postgres-bw-service:kafka" at 10.0.0.139:9092/TCP
I0408 16:20:20.932203       1 proxier.go:421] Adding new service "default/postgres-bw-service:zookeeper" at 10.0.0.139:2181/TCP
I0408 16:20:20.932331       1 proxier.go:421] Adding new service "default/postgres-service:postgres-tcp" at 10.0.0.241:5432/TCP
I0408 16:20:22.860305       1 proxier.go:494] Removing endpoints for "default/postgres-service:postgres-tcp"
I0408 16:20:26.582664       1 proxier.go:484] Setting endpoints for "default/postgres-service:postgres-tcp" to [172.17.0.2:5432]

请注意日志条目 Setting endpoints for "default/postgres-service:postgres-tcp" to [172.17.0.2:5432] ，但postgres-bw-service没有类似的条目 . 我认为这就是为什么我无法访问多容器pod的原因，但我不知道是什么导致了这一点 .

更奇怪的是：我无法通过其自己的服务的clusterIP访问pod，这既不适用于多容器容器也不适用于单容器容器 .

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编辑

kubectl get ep 给了我

kubectl get ep postgres-service
NAME               ENDPOINTS         AGE
postgres-service   172.17.0.2:5432   17h

kubectl get ep postgres-bw-service
NAME               ENDPOINTS         AGE
postgres-bw-service   <none>      17h