mongodb的访问控制

内建角色，具体参考：https://docs.mongodb.com/manual/reference/built-in-roles

Read：允许用户读取指定数据库
readWrite：允许用户读写指定数据库
dbAdmin：允许用户在指定数据库中执行管理函数，如索引创建、删除，查看统计或访问system.profile
userAdmin：允许用户向system.users集合写入，可以找指定数据库里创建、删除和管理用户
clusterAdmin：只在admin数据库中可用，赋予用户所有分片和复制集相关函数的管理权限。
readAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的读权限
readWriteAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的读写权限
userAdminAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的userAdmin权限
dbAdminAnyDatabase：只在admin数据库中可用，赋予用户所有数据库的dbAdmin权限。
root：只在admin数据库中可用。超级账号，超级权限

用户文件在admin库下的system.users表里，默认MongoDB没有访问密码，不太安全

1.添加数据库管理员用户adminUser和普通用户herrywen

mongo --port 27017use admindb.createUser({user: "adminUser",pwd: "adminPass",roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]})use herrywendb.createUser(  {    user: "herrywen",    pwd: "herrywen",    roles: [ { role: "readWrite", db: "herrywen" },             { role: "read", db: "admin" } ]  })

2.在192.168.255.134增加配置文件，开启验证

cat /etc/mongod.confsecurity:  authorization: enabled

3.重启mongdb服务
systemctl restart mongdb

4.测试看下是否可以访问了

[root@worker1 ~]# mongo --host 192.168.255.134 --port 27017  -u adminUser -p adminPass --authenticationDatabase "admin"MongoDB shell version v4.2.1connecting to: mongodb://192.168.255.134:27017/?authSource=admin&compressors=disabled&gssapiServiceName=mongodbImplicit session: session { "id" : UUID("f5114890-0b2e-43a2-8a60-a8b265e68a44") }MongoDB server version: 4.2.1MongoDB Enterprise > use admin;switched to db adminMongoDB Enterprise > show collections;system.userssystem.versionMongoDB Enterprise > exitbye

5.如果直接登陆，在切换admin库时，提示没有任何权限。需要使用db.auth()进行验证

[root@worker1 ~]# mongo --host 192.168.255.134 --port 27017MongoDB shell version v4.2.1connecting to: mongodb://192.168.255.134:27017/?compressors=disabled&gssapiServiceName=mongodbImplicit session: session { "id" : UUID("9bcb1b37-7cfa-4aff-8947-6d633eee01be") }MongoDB server version: 4.2.1MongoDB Enterprise > use adminswitched to db adminMongoDB Enterprise > show collections;Warning: unable to run listCollections, attempting to approximate collection names by parsing connectionStatusMongoDB Enterprise > show collections;Warning: unable to run listCollections, attempting to approximate collection names by parsing connectionStatusMongoDB Enterprise > db.auth("adminUser","adminPass")1MongoDB Enterprise > show collections;system.userssystem.version

6.直接登陆herrywen库

[root@worker1 ~]# mongo --host 192.168.255.134 --port 27017  -u herrywen -p herrywen --authenticationDatabase "herrywen"MongoDB shell version v4.2.1connecting to: mongodb://192.168.255.134:27017/?authSource=herrywen&compressors=disabled&gssapiServiceName=mongodbImplicit session: session { "id" : UUID("9d906997-681a-43b4-b541-dbe5d197cd1f") }MongoDB server version: 4.2.1MongoDB Enterprise > use herrywenswitched to db herrywenMongoDB Enterprise > show collections;MongoDB Enterprise > db.test3.insert({title: 'MongoDB',...     description: 'hello,world',...     by: 'herrywen',...     url: 'http://www.51cto.com',...     tags: ['mongodb', 'database', 'NoSQL'],...     likes: 100})WriteResult({ "nInserted" : 1 })MongoDB Enterprise > show collections;

7.给adminUser用户增加对herrywen库的读写权限

use admindb.grantRolesToUser(     "adminUser",     [       { role: "readWrite", db: "herrywen" }     ] )db.system.users.find().pretty();  

8.给herrywen用户增加herrywen1库的读写权限和admin数据库的读权限

use herrywendb.grantRolesToUser(     "herrywen",     [       { role: "readWrite", db: "herrywen1" } ,{ role: "read", db: "admin" }   ] )

9.撤销herrywen对herrywen1库的读写权限和admin数据库的读权限

db.revokeRolesFromUser(    "herrywen",    [                {                        "role" : "read",                        "db" : "admin"                },                {                        "role" : "readWrite",                        "db" : "herrywen1"                }     ])

10.查看当前herrywen用户的权限，也可以切换heryrwen数据库下，使用db.getUser('herrywen')查看，但是比较麻烦,可以直接使用show users

MongoDB Enterprise > show users{        "_id" : "herrywen.herrywen",        "userId" : UUID("68fc696d-9825-43b6-9afb-d4a040b480a3"),        "user" : "herrywen",        "db" : "herrywen",        "roles" : [                {                        "role" : "readWrite",                        "db" : "herrywen"                }        ],        "mechanisms" : [                "SCRAM-SHA-1",                "SCRAM-SHA-256"        ]}

11.修改herrywen用户的密码
db.changeUserPassword("herrywen","herrywen-2")

12.删除herrywen用户
db.dropUser("herrywen")