CODEWITHSUNDEEP
mongodbdockerdocker-composedocker-machine
casra
casra

Reputation: 441

How to mount external volume for mongoDB using docker-compose and docker-machine

I would like to persist the mongoDB data outside of the container and on a specified volume. I am using docker-compose and the yml file looks like

web:
  build: .
  command: python -u app.py
  ports:
    - "5000:5000"
  volumes:
    - .:/todo
  links:
    - db
db:
  image: mongo:3.0.2

Upvotes: 32

Views: 61989

Answers (7)

Kumar Ashish Ranjan
Kumar Ashish Ranjan

Reputation: 1

As of today, this the working docker compose yaml file for using docker volume with mongo image :

version: '3.1'
services:
  mongo:
    image: mongo
    restart: always
    ports:
      - 27017:27017
    volumes:
      - type: volume
        source: mongo-data
        target: /data/db
        volume:
          nocopy: true 
    # environment:
    #   MONGO_INITDB_ROOT_USERNAME: root
    #   MONGO_INITDB_ROOT_PASSWORD: example

  mongo-express:
    image: mongo-express
    restart: always
    ports:
      - 8081:8081
    environment:
      # ME_CONFIG_MONGODB_ADMINUSERNAME: root
      # ME_CONFIG_MONGODB_ADMINPASSWORD: example
      ME_CONFIG_MONGODB_URL: mongodb://mongo:27017/
volumes:
  mongo-data:
    driver: local

Upvotes: 0

Victor R Hdez
Victor R Hdez

Reputation: 127

#Mongo Dockerfile
FROM alpine:edge

MAINTAINER "loko" <[email protected]>

# proxy settings
ARG http_proxy=http://your-corporate-proxy-if-is-need-it/
ARG https_proxy=http://your-corporate-proxy-if-is-need-it/
ARG no_proxy=localhost,127.0.0.0/8,::1,15.0.0.0/8,16.0.0.0/8

ADD run /
ADD dosu /sbin/

RUN chmod +x /sbin/dosu && \
  echo http://dl-4.alpinelinux.org/alpine/edge/testing >> /etc/apk/repositories && \
  apk add --no-cache mongodb

VOLUME /data/db
EXPOSE 27017 28017

ENTRYPOINT [ "/run" ]
CMD [ "mongod" ]

Docker Compose

version: '2.0'

volumes:
  data:
    external:
      name: "the-volume-name-you-want"
services:
     web:
       build:
         context: .
         dockerfile: "Dockerfile"
         args:
           - HTTP_PROXY
           - HTTPS_PROXY
           - http_proxy
           - https_proxy
           - no_proxy
           - NO_PROXY
       image: "docker-hub-OR-your-built-image-name"
       environment:
          - http_proxy=$http_proxy
          - https_proxy=$https_proxy
          - no_proxy=$no_proxy
          - HTTP_PROXY=$HTTP_PROXY
          - HTTPS_PROXY=$HTTPS_PROXY
          - NO_PROXY=$NO_PROXY
       ports:
         - "8080"
       restart: always
       depends_on:
         - mongo
     mongo:
       image: "your-favorite-mongodb-image-name"
       environment:
          - http_proxy=$http_proxy
          - https_proxy=$https_proxy
          - no_proxy=$no_proxy
          - HTTP_PROXY=$HTTP_PROXY
          - HTTPS_PROXY=$HTTPS_PROXY
          - NO_PROXY=$NO_PROXY
       restart: always
       volumes:
         - data:/data/db

build and run

docker-compose build .
docker-compose up

Upvotes: 0

HibaHasan
HibaHasan

Reputation: 1493

this documentation has helped me: https://docs.docker.com/compose/compose-file/#volumes

To reuse a volume across multiple services, a named volume MUST be declared in the top-level volumes key.

This example shows a named volume (db-data) being used by the backend service, and a bind mount defined for a single service.

services:
  backend:
    image: awesome/backend
    volumes:
      - type: volume #this is to declare that the type is volume
        source: db-data #this is the name of your already existing volume
        target: /data #this is the target or destination of the data being saved by your volume 
        volume:
          nocopy: true #The nocopy modifier is for when you are creating a volume and data already exists in the container's path, you can specify if you want that data copied when the volume is created.

volumes:
  db-data:
    external: true # the external flag allows you to use volumes created outside the scope of the docker-compose file

Upvotes: 0

Fernando Carlinha
Fernando Carlinha

Reputation: 1

I had the same problem, i'm using docker with windows 10 and using WSL 2 to integrate with ubuntu, i was only able to solve the problem by putting the full path:

 volumes:
          - /home/you_user/mongoDocker/docker:/data/db

Upvotes: 0

Felipe Augusto
Felipe Augusto

Reputation: 1563

Using your file

web:
  build: .
  command: python -u app.py
  ports:
    - "5000:5000"
  volumes:
    - .:/todo # HERE --> /mnt/c/temp/mongo:/data/db (mnt= root | c = your drive | temp and mongo = folder
  links:
- db
db:
  image: mongo:3.0.2
  • Then, the value can be /mnt/c/temp/mongo:/data/db

Dont forget to use the environment variables:

environment:
  MONGO_INITDB_ROOT_USERNAME: root
  MONGO_INITDB_ROOT_PASSWORD: fw324fe

Upvotes: 0

Philiiiiiipp
Philiiiiiipp

Reputation: 753

I suppose you try to start the container on an OSX system like me? The host machine volume directory cannot be under /Users (or ~) as joshuajabbour points out here.

Try for example 

 volumes:
   - /usr/local/mongodb:/todo

Upvotes: 11

dnephin
dnephin

Reputation: 28140

As documented on the docker hub page for that image (https://hub.docker.com/_/mongo/) you can use

volumes:
  - './data:/data/db'

Which will use the host path ./data

Upvotes: 41

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