add noonroot in containers

[zhangguanzhang]

# docker top 314
UID                 PID                 PPID                C                   STIME               TTY                 TIME                CMD
nfsnobo+            22847               22803               0                   14:57               ?                   00:00:00            /bin/kafka_exporter --kafka.server=localhost:9092
# curl -s localhost:9308/metrics | grep -m3 kafka
# HELP kafka_brokers Number of Brokers in the Kafka Cluster.
# TYPE kafka_brokers gauge
kafka_brokers 1

@danielqsj PTAL

[zhangguanzhang]

@danielqsj

[danielqsj]

LGTM, Thanks @zhangguanzhang