I want to use MongoDB with Docker

I don't want to download the database to a local environment such as Mac when developing an app, so I use a container management tool called Docker. Because the transition is easy. I want to use it in the production environment in the mountains, but I don't have any knowledge about Kubernetes, so I can't really step into it. Well, it depends on the scale.

This article is like a sample of building ** MongoDB ** using ** Docker **. There was nothing else that was easy to understand, and I remember checking it when I made it.

The operating environment is Mac OS Catalina

Goal Create a ** docker-compose.yml ** file and put ** MongoDB ** and ** mongo-express ** on localhost.

** MongoDB ** is NoSQL ** mongo-express ** is like ** phpMyAdmin ** in MySQL. The contents of ** MongoDB ** are easier to see.

Docker

MongoDB

mongo-express

docker-compose.yml

# Use root/example as user/password credentials
version: "3.1"

services:
  mongo:
    image: mongo
    restart: always
    environment:
      MONGO_INITDB_ROOT_USERNAME: root   #username
      MONGO_INITDB_ROOT_PASSWORD: tree  #password
    ports:
      - 27014:27017
    volumes:
      - ./db:/data/db
      - ./configdb:/data/configdb

  mongo-express:
    image: mongo-express
    restart: always
    ports:
      - 8080:8081
    environment:
      ME_CONFIG_MONGODB_ADMINUSERNAME: root   #username
      ME_CONFIG_MONGODB_ADMINPASSWORD: tree   #password

Commentary

See below for the basic way to write a ** docker-compose.yml ** file. https://docs.docker.com/compose/compose-file/

See below for ** ports ** specifications https://qiita.com/tksugimoto/items/23fcce1b067661e8aa46#%E6%A4%9C%E8%A8%BC%E7%B5%90%E6%9E%9C

The database file will be created in the location specified by ** volumes **. If there are files in ** sample / docker-compose.yml **, ** sample / db ** and ** sample / configdb ** will be created.

How To Use

whoami$ pwd
/Users/whoami/sample
whoami$ ls
docker-compose.yml
whoami$ docker-compose up -d    // -d means run as daemon
Creating network "sample_default" with the default driver
Creating sample_mongo-express_1 ... done
Creating sample_mongo_1         ... done
whoami$ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                      NAMES
1aeb90deadd0        mongo               "docker-entrypoint.s…"   23 seconds ago      Up 22 seconds       0.0.0.0:27014->27017/tcp   sample_mongo_1
6649bb697412        mongo-express       "tini -- /docker-ent…"   23 seconds ago      Up 9 seconds        0.0.0.0:8080->8081/tcp     sample_mongo-express_1

whoami$ docker-compose down
Stopping sample_mongo_1         ... done
Stopping sample_mongo-express_1 ... done
Removing sample_mongo_1         ... done
Removing sample_mongo-express_1 ... done
Removing network sample_default
whoami$ docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

After ** docker-compose up -d **, open [http: // localhost: 8080 /] in your browser and you will find ** mongo-express ** there.

Note

** MongoDB ** will not work if you specify the port number too much. I think I've seen an article that says Docker's MongoDB port is only 27017. It seems that mongo-express can only be used in the development environment with docker.

Notice

I will also write a method to connect to the newly created MongoDB from Node.js.

Official ref

https://hub.docker.com/_/mongo

https://hub.docker.com/_/mongo-express