Mongodb+dockerdocker Configuring a MongoDB replica set

Dockerfile

#base images from
ubuntu:latest
maintainer yao.3.li@uconn.edu

#install mongodb
RUN apt-get Update
RUN apt-get-y Install Curl
Run Curl-o https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.0.6.tgz
run TAR-ZXVF mongodb-linux-x86_ 64-3.0.6.tgz
run MV mongodb-linux-x86_64-3.0.6//usr/local/mongodb
Run export path=/usr/local/mongodb/bin:$ PATH
ADD./run.sh/run.sh
run chmod 777/run.sh

#database directory
run mkdir-p/data/db
run Mkdir-p/data/log
Run touch/data/log/r.log
run mkdir-p/data/config

#port
EXPOSE 27017

entrypoint ["/run.sh"]

DOCKER-COMPOSE.YML:

Version: ' 3.2 '
services:
  primary:
    image:mongodb
    ports:
      -"27017:27017"
    Environment:
      -Role=prime
    volumes:
      -./config/r0.conf:/data/config/c.conf
      -./runprime.sh:/runprime.sh


  Secondary1:
    image:mongodb
    ports:
      -"27018:27017"
    Environment:
       -Role=secondary
    Volumes:
      -./config/r1.conf:/data/config/c.conf

  Secondary2:
    image:mongodb
    ports:
      -" 27019:27017 "
    Environment:
       -role=secondary
    volumes:
      -./config/r1.conf:/data/config/c.conf

R0.conf and r1.conf are temporarily the same:

#数据文件夹
dbpath=/data/db

#日志文件夹, you must specify LogPath Logpath=/data/log/r.log if you are running in a future mode

#以追加而非覆盖方式写入日志
logappend=true

#端口
port=27017

#以后台方式运行  

Run.sh:

#!/bin/bash
/usr/local/mongodb/bin/mongod-f/data/config/c.conf--replset "Rs0"

Runprime.sh:

#!/bin/bash
MONGO Localhost:27017/admin conf.js

Conf.js:

config={_id: "Rs0", 
	members:[{_id:0,host: "PRIMARY", priority:1}, 
				{_id:1,host: "Secondary1", priority:0}, 
				{_id:2,host: "Secondary2", priority:0}]
		}

Rs.initiate (config)
rs.conf ()

rs.add ("Secondary1")
rs.add ("Secondary2")

Run the process: first build the Image:

Docker Build-t MongoDB.

To start the container:

Docker-compose up-d

Log in to the main library, use the script configuration, or run runprime.sh to configure the replication set:

./runprime.sh

You can then verify by logging in:

MONGO--port 27017

The prompt has a primary, indicating that the configuration was successful. Of course, you can write further in the main library, read from the library, but need to be used from the library:

Db.setslaveok ()

To read.