Running MongoDB on Docker Compose

abhishek Jain

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In this article, we will discuss how DBA can run a MongoDB instance using docker-compose. It’s very easy and quite flexible to handle. According to my opinion docker-compose removes all the installation and configuration pain when you need a test instance immediately. In a non-production environment for proof of concepts (POC) environment, you can easily use MongoDB on docker-compose.


High-Level Steps for Installation & Configuration
  • Install Docker
  • Install Docker compose
  • Take the docker-compose code with MongoDB
  • Run the docker-compose
  • Connect to MongoDB Database
  • Connect From MongoDB from Docker bash



Prerequisites
mkdir -p /opt/docker_com_repo
cd /opt/docker_com_repo
vi docker-compose.yml
Copy Below docker compose code for MongoDB and paste in side the docker-compose.yml

IMP: Remove all the comments with “< abc>” From compose code
mkdir -p /opt/mongo/datafiles/db
mkdir -p /opt/mongo/configfiles



Docker Compose Code
version: ‘3.3’
services:
mongodb_container:
container_name: mongodb4.0
image: mongo:4.0 < Container Image>
environment:
MONGO_INITDB_DATABASE: thedbadmin
MONGO_INITDB_ROOT_USERNAME: root < Database Admin username>
MONGO_INITDB_ROOT_PASSWORD: oracle < Database Admin Password>
ports:
– 27017:27017
volumes:
– /opt/mongo/datafiles/db:/data < Persistent Volume for Data files>
– /opt/mongo/configfiles:/etc/mongod < Persistent volume for MongoDB configuration file>



Ruing Docker Compose

cd /opt/docker_com_repo
docker-compose up -d
Check if the MongoDB instance started?
[[email protected] mongodb]# docker-compose ps
Name Command State Ports
———————————————————————————————–
mongodb4.0docker-entrypoint.sh mongod Up 0.0.0.0:27017->27017/tcp,:::27017->27017/tcp

Test Database connection
[[email protected] mongodb]# telnet localhost 27017
Trying ::1…
Connected to localhost.
Escape character is ‘^]’.

if looks good than go for the next step or stop the Linux firewall



Open MongoDB compass and connect to Database. Follow the screenshots

Click on “Fill in connection Fields individually

 


KGIII

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