DNS似乎不正确。它应该是以下格式
<redis-service-name>.<namespace>.svc.cluster.local:6379 say, redis service name is redis and namespace is default then it should be redis.default.svc.cluster.local:6379
你也可以使用pod dns,如下所示
<redis-pod-name>.<redis-service-name>.<namespace>.svc.cluster.local:6379 say, redis pod name is redis-0 and redis service name is redis and namespace is default then it should be redis-0.redis.default.svc.cluster.local:6379
假设服务端口与容器端口相同,即6379