MongoDB数据库授权认证的实现

> use admin
> db.createUser(
{
   user: "admin",
   pwd: "123456", 
   roles: [ { role: "root", db: "admin" } ]			//指定角色为root，表示管理员
}
> db.getUsers()

[mongo@mongodb-1 ~]$ vim /data/mongodb_cluster/mongodb_27017/conf/mongodb.yml 
security:
  authorization: enabled

[mongo@mongodb-1 ~]$ mongod -f /data/mongodb_cluster/mongodb_27017/conf/mongodb.yml --shutdown
killing process with pid: 17899
[mongo@mongodb-1 ~]$ mongod -f /data/mongodb_cluster/mongodb_27017/conf/mongodb.yml 
about to fork child process, waiting until server is ready for connections.
forked process: 18511
child process started successfully, parent exiting

[mongo@mongodb-1 ~]$ mongo -uadmin -p123456
MongoDB shell version v4.0.14
connecting to: mongodb://127.0.0.1:27017/?gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("ae65176e-ac6b-4906-b621-496996381417") }
MongoDB server version: 4.0.14
> show dbs

1.创建用户
[mongo@mongodb-1 ~]$ mongo -uadmin -p123456
> db.createUser(
...   {
...     user: "mytest",
...     pwd: "123456", 
...     roles: [ { role: "readWrite", db: "test" },		//可读可写
...              { role: "read", db: "test2" }   ]					//可读
...   }
... )


2.插入数据
test库
> use test
> db.test.insert({"name":"xiaoming","age":10})
> db.test.insert({"name":"xiaohong","age":10})
> db.test.insert({"name":"xiaolan","age":10})

test2库
> use test2
> db.test2.insert({"name":"jiangxl","job":"it","age":"99"})
> db.test2.insert({"name":"wanger","job":"it","age":"99"})

1.登录mytest用户并连接到tets库
[mongo@mongodb-1 ~]$ mongo -umytest -p123456 192.168.81.210:27017/test

2.查看所有表
> show tables
hash
test

3.查看是否有读权限
> db.test.find()
{ "_id" : ObjectId("602c73b5d9d09b9b700c9eb2"), "name" : "xiaoming", "age" : 10 }
{ "_id" : ObjectId("602c73bdd9d09b9b700c9eb3"), "name" : "xiaohong", "age" : 10 }
{ "_id" : ObjectId("602c73c1d9d09b9b700c9eb4"), "name" : "xiaolan", "age" : 10 }

4.查看是否有写入权限
> db.test.insert({"name":"xiaozhang","age":10})

5.查看是否写入成功
> db.test.find()
{ "_id" : ObjectId("602c73b5d9d09b9b700c9eb2"), "name" : "xiaoming", "age" : 10 }
{ "_id" : ObjectId("602c73bdd9d09b9b700c9eb3"), "name" : "xiaohong", "age" : 10 }
{ "_id" : ObjectId("602c73c1d9d09b9b700c9eb4"), "name" : "xiaolan", "age" : 10 }
{ "_id" : ObjectId("602c74f949b9d3f400ed866b"), "name" : "xiaozhang", "age" : 10 }

1.登录test库
[mongo@mongodb-1 ~]$ mongo -umytest -p123456 192.168.81.210:27017/test

2.切换到tets2库
> use test2

3.查看表
> show tables
test2

4.查看表中数据
> db.test2.find()

5.插入一条数据，查看是否插入成功
> db.test2.insert({"name":"xiaozi","job":"it","age":"99"})
WriteCommandError({
	"ok" : 0,
	"errmsg" : "not authorized on test2 to execute command { insert: \"test2\", ordered: true, lsid: { id: UUID(\"6203f7df-d8f8-4880-aab3-4db712ae785f\") }, $db: \"test2\" }",
	"code" : 13,
	"codeName" : "Unauthorized"
})