1.权限管理
https://docs.influxdata.com/influxdb/v1.7/administration/authentication_and_authorization/#set-up-authentication
wget http://influxdb.s3.amazonaws.com/influxdb-0.9.4.2-1.x86_64.rpm yum localinstall influxdb-0.9.4.2-1.x86_64.rpm man /etc/init.d/influxdb
curl -G 'http://localhost:8086/query?pretty=true&db=mydb' --data-urlencode 'q=SELECT * FROM "cpu"';