Docker初识：mongo安装

朱雀 2021-02-15 16:00 646阅读 0赞

Linux系统：CentOS Linux release 7.4.1708 (Core)   
Docker版本： 17.03.0-ce, build 3a232c8

1、查询下载镜像

[root@wngpenghao opt]# docker search mongo
    NAME                                DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
    mongo                               MongoDB document databases provide high av...   6359      [OK]
    mongo-express                       Web-based MongoDB admin interface, written...   557       [OK]
    tutum/mongodb                       MongoDB Docker image – listens in port 270...   228                  [OK]
    bitnami/mongodb                     Bitnami MongoDB Docker Image                    103                  [OK]
    mongoclient/mongoclient             Official docker image for Mongoclient, fea...   77                   [OK]
    mongooseim/mongooseim               Small docker image for MongooseIM - robust...   18
    frodenas/mongodb                    A Docker Image for MongoDB                      17                   [OK]
    cvallance/mongo-k8s-sidecar         Kubernetes side car to setup and maintain ...   14                   [OK]
    centos/mongodb-32-centos7           MongoDB NoSQL database server                   8
    arm64v8/mongo                       MongoDB document databases provide high av...   6
    centos/mongodb-26-centos7           MongoDB NoSQL database server                   5
    circleci/mongo                      CircleCI images for MongoDB                     5                    [OK]
    istepanov/mongodump                 Docker image with mongodump running as a c...   5                    [OK]
    webhippie/mongodb                   Docker images for MongoDB                       4                    [OK]
    centos/mongodb-36-centos7           MongoDB NoSQL database server                   4
    eses/mongodb_exporter               mongodb exporter for prometheus                 4                    [OK]
    requilence/mongodb-backup           mongo backup container                          3                    [OK]
    neowaylabs/mongodb-mms-agent        This Docker image with MongoDB Monitoring ...   2                    [OK]
    centos/mongodb-34-centos7           MongoDB NoSQL database server                   2
    ekesken/mongo                       docker image for mongo that is configurabl...   1                    [OK]
    openshift/mongodb-24-centos7        DEPRECATED: A Centos7 based MongoDB v2.4 i...   1
    ansibleplaybookbundle/mongodb-apb   An APB to deploy MongoDB.                       1                    [OK]
    andreasleicher/mongo-azure-backup   a docker container to backup a mongodb usi...   0                    [OK]
    ccitest/mongo                       CircleCI test images for Mongo                  0                    [OK]
    fuww/mongo-connector                mongo-connector + alpine + docker               0                    [OK]
    [root@wngpenghao opt]# docker pull mongo

2、查看镜像

[root@wngpenghao opt]# docker images
    REPOSITORY            TAG                 IMAGE ID            CREATED             SIZE
    mongo                 latest              965553e202a4        2 weeks ago         363 MB

3、运行

docker run --privileged=true -p 27017:27017 --name mongodb -v /opt/mongodb/configdb:/data/configdb/ -v /opt/mongodb/db/:/data/db/ -id mongo --auth

[root@wngpenghao opt]# docker ps -a
    CONTAINER ID        IMAGE                 COMMAND                  CREATED             STATUS              PORTS                      NAMES
    8fe4e51022c4        mongo                 "docker-entrypoint..."   57 minutes ago      Up 57 minutes       0.0.0.0:27017->27017/tcp   mongodb

4、MongoDB测试。

以admin身份进入mongo

docker exec -it  8fe4e51022c4 mongo admin

创建admin账户

db.createUser({ user: 'admin', pwd: '123456', roles: [ { role: "userAdminAnyDatabase", db: "admin" } ] });

创建完admin用户之后，就可以按着正常使用的mongo的方式，创建用户，插入数据或者登陆客户端查看数据等操作了。

问题：

1、使用客户端连接数据库的时候，提示“Network error while attempting to run command 'saslStart' on host 'xxx:27017'”。

服务端日志  
2019-11-18T08:06:23.382+0000 E  -        \[conn51\] Assertion: Location34348: cannot translate opcode 2010 src/mongo/rpc/message.h 120  
2019-11-18T08:06:23.443+0000 I  NETWORK  \[conn51\] DBException handling request, closing client connection: Location34348: cannot translate opcode 2010

因为连接成功但是登陆失败，试了一下最新版本的客户端则不存在问题，推测可能缺少了 saslstart 相关的一些依赖，导致了加密/解密过程中出现的问题。所以应该升级一下客户端就OK了。

2、not authorized on admin to execute command

Mongodb默认是不需要用户密码就可以连接的,如果使用命令报错"not authorized on admin to execute command ",则表示当前登陆用户不具备相应权限;

:添加用户时各个角色对应权限：

1.数据库用户角色：read、readWrite;  
2.数据库管理角色：dbAdmin、dbOwner、userAdmin；  
3.集群管理角色：clusterAdmin、clusterManager、clusterMonitor、hostManager；  
4.备份恢复角色：backup、restore  
5.所有数据库角色：readAnyDatabase、readWriteAnyDatabase、userAdminAnyDatabase、dbAdminAnyDatabase  
6.超级用户角色：root

创建一个具有root权限的用户：

db.createUser(
    	{
    		user:"root",
    		pwd:"123456",
    		roles:[{role:"root",db:"admin"}]
    	}
    );

这样就可以OK了。