Docker搭建MongoDB

前置条件：

64-bit 系统
kernel 3.10+
1.检查内核版本，返回的值大于3.10即可。官方文档要求Linux kernel至少3.8以上，且docker只能运行在64位的系统中。

[root@Slave ~]# uname -r
3.10.0-327.el7.x86_64
[root@Slave ~]# getconf LONG_BIT
64

查看内核是否支持aufs
[root@Slave ~]# grep aufs /proc/filesystems
[root@Slave ~]# yum install https://get.docker.com/rpm/1.7.1/centos-6/RPMS/x86_64/docker-engine-1.7.1-1.el6.x86_64.rpm
[root@Slave ~]# service docker start

1、搜索mongo
[root@Slave tmp]# cd /tools/
[root@Slave tools]# docker search mongo
INDEX NAME DESCRIPTION STARS OFFICIAL AUTOMATED
docker.io docker.io/mongo MongoDB document databases provide high av... 7175 [OK]
docker.io docker.io/mongo-express Web-based MongoDB admin interface, written... 773 [OK]
docker.io docker.io/tutum/mongodb MongoDB Docker image – listens in port 270... 229 [OK]
docker.io docker.io/bitnami/mongodb Bitnami MongoDB Docker Image 127 [OK]
docker.io docker.io/mongoclient/mongoclient Official docker image for Mongoclient, fea... 89 [OK]
docker.io docker.io/mongooseim/mongooseim Small docker image for MongooseIM - robust... 19
docker.io docker.io/cvallance/mongo-k8s-sidecar Kubernetes side car to setup and maintain ... 18 [OK]
docker.io docker.io/frodenas/mongodb A Docker Image for MongoDB 18 [OK]
docker.io docker.io/arm64v8/mongo MongoDB document databases provide high av... 10
docker.io docker.io/centos/mongodb-32-centos7 MongoDB NoSQL database server 8
docker.io docker.io/circleci/mongo CircleCI images for MongoDB 8 [OK]
docker.io docker.io/webhippie/mongodb Docker images for MongoDB 7 [OK]
docker.io docker.io/centos/mongodb-36-centos7 MongoDB NoSQL database server 6
docker.io docker.io/istepanov/mongodump Docker image with mongodump running as a c... 6 [OK]
docker.io docker.io/centos/mongodb-26-centos7 MongoDB NoSQL database server 5
docker.io docker.io/eses/mongodb_exporter mongodb exporter for prometheus 4 [OK]
docker.io docker.io/neowaylabs/mongodb-mms-agent This Docker image with MongoDB Monitoring ... 4 [OK]
docker.io docker.io/centos/mongodb-34-centos7 MongoDB NoSQL database server 3
docker.io docker.io/andreasleicher/mongo-azure-backup a docker container to backup a mongodb usi... 2 [OK]
docker.io docker.io/ansibleplaybookbundle/mongodb-apb An APB to deploy MongoDB. 1 [OK]
docker.io docker.io/ekesken/mongo docker image for mongo that is configurabl... 1 [OK]
docker.io docker.io/openshift/mongodb-24-centos7 DEPRECATED: A Centos7 based MongoDB v2.4 i... 1
docker.io docker.io/ccitest/mongo CircleCI test images for Mongo 0 [OK]
docker.io docker.io/martel/mongo-replica-ctrl A dockerized controller for a Mongo db rep... 0 [OK]
docker.io docker.io/phenompeople/mongodb MongoDB is an open-source, document datab... 0 [OK]
[root@Slave tools]#

2、拉取mongo【这里默认为latest】
[root@Slave tools]# docker pull mongo
Using default tag: latest
Trying to pull repository docker.io/library/mongo ...
latest: Pulling from docker.io/library/mongo
5d9821c94847: Pull complete
a610eae58dfc: Pull complete
a40e0eb9f140: Pull complete
3242ba6cef1f: Pull complete
8ade7416f0cf: Pull complete
cd8d2aab224e: Pull complete
9d8c2ff7f392: Pull complete
d29b99c4ab4c: Pull complete
5d1ed7c1266e: Pull complete
77f31d60b382: Pull complete
e328c48077a2: Pull complete
31085c577c4a: Pull complete
Digest: sha256:ebcdb042054d9974c8c3160d761b0bdb39b55115448242de1a5161c124ddb0af
Status: Downloaded newer image for docker.io/mongo:latest
[root@Slave tools]#

3、查看本地镜像
[root@Slave tools]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
busybox v3 08dfcb299a86 20 hours ago 1.23 MB
docker.io/mongo latest 50e17a9fdd96 5 days ago 492 MB
docker.io/busybox latest 6858809bf669 13 days ago 1.23 MB
docker.io/tomcat 8.0 ef6a7c98d192 2 years ago 356 MB
[root@Slave tools]#

4、启动容器【就是安装，-v后面的参数表示把数据文件挂载到宿主机的路径，-p把mongo端口映射到宿主机的指定端口，--auth表示连接mongodb需要授权】
[root@Slave tools]# docker run -p 27017:27017 -v /tmp/db:/data/db -d mongo
896f0b4d59959d0cc6ec1ab196008c4fcc0320da0f2acf76b0c9aa5ed32f0e3b
[root@Slave tools]#

5、查看运行中的容器
[root@Slave tools]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
896f0b4d5995 mongo "docker-entrypoint..." 15 seconds ago Up 14 seconds 0.0.0.0:27017->27017/tcp sad_swartz
930fbd523c13 tomcat:8.0 "catalina.sh run" 22 hours ago Up 21 hours 0.0.0.0:8888->8080/tcp tomcat
[root@Slave tools]#

6、进入mongo【以 admin 用户身份进入mongo，相当于oracle的用户也就是库，mysql的库】，896f0b4d5995 镜像仓库id
[root@Slave tools]# docker exec -it 896f0b4d5995 mongo admin
MongoDB shell version v4.4.1
connecting to: mongodb://127.0.0.1:27017/admin?compressors=disabled&gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("b7bcaa79-f6e3-449e-b455-b7459c926878") }
MongoDB server version: 4.4.1
Welcome to the MongoDB shell.
For interactive help, type "help".
For more comprehensive documentation, see
https://docs.mongodb.com/
Questions? Try the MongoDB Developer Community Forums
https://community.mongodb.com
---
The server generated these startup warnings when booting:
2020-09-22T03:22:49.272+00:00: Access control is not enabled for the database. Read and write access to data and configuration is unrestricted
2020-09-22T03:22:49.273+00:00: /sys/kernel/mm/transparent_hugepage/enabled is 'always'. We suggest setting it to 'never'
2020-09-22T03:22:49.273+00:00: /sys/kernel/mm/transparent_hugepage/defrag is 'always'. We suggest setting it to 'never'
---
---
Enable MongoDB's free cloud-based monitoring service, which will then receive and display
metrics about your deployment (disk utilization, CPU, operation statistics, etc).

The monitoring data will be available on a MongoDB website with a unique URL accessible to you
and anyone you share the URL with. MongoDB may use this information to make product
improvements and to suggest MongoDB products and deployment options to you.

To enable free monitoring, run the following command: db.enableFreeMonitoring()
To permanently disable this reminder, run the following command: db.disableFreeMonitoring()
---
>

7、创建一个 admin 管理员账号
> db.createUser({ user: 'admin', pwd: '123789654', roles: [ { role: "userAdminAnyDatabase", db: "admin" } ] });
Successfully added user: {
"user" : "admin",
"roles" : [
{
"role" : "userAdminAnyDatabase",
"db" : "admin"
}
]
}
>

8、对 admin 进行身份认证
> db.auth("admin","123789654");
1
> show databases;
admin 0.000GB
config 0.000GB
local 0.000GB
>

MongoDB 创建数据库
语法
MongoDB 创建数据库的语法格式如下：

use DATABASE_NAME
如果数据库不存在，则创建数据库，否则切换到指定数据库。

实例
以下实例我们创建了数据库 runoob:
> use runoob
switched to db runoob
> db
runoob
>