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docker-alpine-mongo

This repository contains Dockerfile for MongoDB 3.2 container, based on the Alpine 3.3 image.

Why ? the official mongo image size: 317 MB, alpine-mongo: 133 MB

Install

As a prerequisite, you need Docker to be installed.

To download this image from the public docker hub:

$ docker pull 3cola/alpine-mongo

To re-build this image from the dockerfile:

$ docker build -t 3cola/alpine-mongo .

Usage

To run mongod:

$ docker run -d --name mongo_1 -p 27017:27017 3cola/alpine-mongo

Or do not expose port and use a link in the container that need a connection to the db...

You can also specify the database repository where to store the data with the volume -v option:

$ docker run -d --name mongo_1 -p 27017:27017 \
  -v /somewhere/onmyhost/mydatabase:/data/db \
  3cola/alpine-mongo

and with the authentication on (for production):

$ docker run -d --name mongo_1 3cola/alpine-mongo --auth

to create the first admin user:

$ docker exec -it mongo_1 mongo admin
> db.createUser({ user: "admin", pwd: "myPassw0rd", roles: [ { role: "userAdminAnyDatabase", db: "admin" } ] })

to create a user and its db:

$ docker exec -it mongo_1 sh
$ mongo -u "admin" -p "myPassw0rd" --authenticationDatabase "admin" myDb
> db.createUser({ user: "myUser", pwd: "123Soleil", roles: [ { role: "dbOwner", db: "myDb" } ] })

Now, on the same host where the mongodb container is running, to trace database network activity in real-time:

$ docker exec -ti mongo_1 mongosniff

To run a shell session:

$ docker exec -ti mongo_1 sh

To use the mongo shell client:

$ docker exec -ti mongo_1 mongo

The mongo shell client can also be run its own container:

$ docker run -ti --rm --name mongoshell-volatile 3cola/alpine-mongo mongo host:port/db

or with a link

$ docker run -ti --rm --name mongoshell-volatile --link "mongo_1:db" 3cola/alpine-mongo mongo db/myDb

Limitations

• On MacOSX, volumes located in a virtualbox shared folder are not supported, due to a limitation of virtualbox (default docker-machine driver) not supporting fsync().