About MongoDb roles

all roles:

Read: allow the user read the specified database

readWrite: allow the user to write data to specified database

dbAdmin: allow the user to exec management command,like create/delete index, check statistic, check system.profile

userAdmin: allow user insert data into system.users

dbOwner: owner of database, include readWrite、dbAdmin、userAdmin

clusterAdmin: only used in admin, allow the user copy or shard the database

readAnyDatabase: only used in admin, allow the user read all database

readWriteAnyDatabase: only used in admin, allow the user write to all database

userAdminAnyDatabase: only used in admin, give all userAdmin's authorities to user

dbAdminAnyDatabase: only used in admin, give all dbAdmin's authorities to user

root: only used in admin. super user, super authorities

Connect to a specified database in service

1.start a database service in local host with docker

1.1 first you should run this in command 'docker run -p 27017:27017 -v $PWD/db:/data/db -d mongo' to start a mongodb service

1.2 then you should run this 'docker run -it mongo mongo --host 172.17.0.1' to connect to the service which started in step 1

2.config properties (in this project I use yml)

host: localhost

port: 27017

database: test you can connect to the local mongoDB service after configing this 3 properties

3.authentication

3.1 use 'db.createUser()' method to add a user to the specified database(remember to switch to the database with command 'use database-name'')

3.2 enable authentication with command 'mongod --auth'

3.3 use 'db.stopServer()' to stop service

3.4 restart the mongodb service with 'run -p 27017:27017 -v $PWD/db:/data/db -d mongo --auth'

3.5 and now if you want to do something in database you should auth(db.auth('username','password')) firstly and have the rights

3.6 then you should config another 2 properties (username , password)