deploy promtail on master node as default (#184)
deploy promtail on master node as default (#184)

Signed-off-by: Xiang Dai <f274b132786a051b69171fb6599acffc1400c4a5@qq.com>
grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki