Mongodb initialization operation

Client login
/opt/cloud/mongodb/bin/mongo -host x.xx.x.x --port 8635 -u rwuser -p xxxx --authenticationsDatabase admin

Administrator account login
use admin
db.auth("dbadmin","xxx")

1, Create database
use pipeline
# view the database
show dbs
2, Create user
use pipeline 
db.createUser( {user: "pipeline",pwd: "123456",roles: [{role: "userAdminAnyDatabase", db: "pipeline"}],passwordDigestor: "server"})
db.grantRolesToUser("pipeline",[{role: "dbOwner",db: "cache"}]);
3, Enable sharding for instances
use admin
db.runCommand({enableSharding; "pipeline"})
4, Create set , And fragment the set
use pipeline
db.createCollection("JobDetail")
sh.shardCollecton("pipeline.JobDetail", {"_id",1})
5, Check the fragmentation
db.getCollection("JobDetail").getShardDistribution();
6, Create index
db.JobDetail.createIndex({"pipeline_id": 1},{background:true,name:"idx_pipeline_id"});

7, Query specified time data
db.JobDetail.find({"createTime": ($gt:ISOdate("2021-08-17 00:00:00Z"),$lt:ISOdate("2021-08-17 00:00:00Z"))}).count();

8, The batch operation
db.JobDetail.find({"status": "pending"})
db.JobDetail.find({"status": "pending"}).forEach(
    function(item){
        db.JobDetail.update({"_id": item._id},{$set{"status":"completed"}})
    }
)