MongoDB Local ReplicaSet

This is docker image for creating mongodb replica set in your local environment with authentication enabled (enforced to be precise). This docker image will create a self-contained 3 node replica set (that is, all three nodes are running in one container). Important part is that replica set enforce authentication.

Note: I know that all point of Docker is one process per container, but in this case I was unable to setup Mongodb replica set, with full authentication enabled in 3 or more Docker containers.

THIS IS ONLY USEFUL FOR LOCAL DEVELOPMENT

Using

You need to know the following:

LOGIN INFO

User info is configured on the admin database:

• username: dbadmin
• password: adminPass

PORTS

Each instance exposes a port, all listening on 0.0.0.0 interface:

• db1: 27021 [primary]
• db2: 27022
• db3: 27023

DATA

The container will create one volume at /data, but you can mount one or more to your host at these paths:

• db1: /data/db1 [primary]
• db2: /data/db2
• db3: /data/db3

REPLICA SET NAME

It's called: rs0

Notes

If you mount something into /data/db1, the container will not go through it's initialization process, but it will also assume that you have mounted all 3 volumes -- so mount all 3 or none. You can customize the username/password by providing USERNAME/PASSWORD environment variables.

Also, you need to execute rights to setup.sh before running Docker creation.

chmod +x ./setup.sh

Docker build command

docker build -t authdockermongo:2.0.1 .

Example Run

Regular container start (on Ubuntu 16.04). Connect data folder from current directory. Change if you have your data somewhere else.

    docker run -p 27021:27021 -p 27022:27022 -p 27023:27023 -d --name autDockerMongo --network mongo10net --net-alias="authmongodocker.net" -v $(pwd)/data:/data authdockermongo:2.0.1

If you want to specify fixed IP address use next docker run command:

    docker run -p 27021:27021 -p 27022:27022 -p 27023:27023 -d --name autDockerMongo40 --network scp10net --ip=192.168.44.101 --net-alias="authmongodocker.net" -v $(pwd)/data:/data authdockermongo:2.0.1

Command to run from macOS 10.13+

docker run -p 27021:27021 -p 27022:27022 -p 27023:27023 -d --name autDockerMongo40 --network scp10net --net-alias="authmongodocker.net" -v $(pwd)/data:/data authdockermongo:2.0.1

Example Mongo Connection String (from localhost command line (your development machine))

    mongo -u dbadmin -p adminPass --authenticationDatabase admin mongodb://localhost:27021,localhost:27022,localhost:27023/dbTest?replicaSet=rs0

Example Mongo Native Connection String (from node.js app on the host)

    mongodb://dbadmin:adminPass@localhost:27021,localhost:27022,localhost:27023/dream1dev3?replicaSet=rs0&authSource=admin

Example Mongoose Connection String (from node.js app on the host)

    MONGO_URI=mongodb://dbadmin:adminPass@localhost:27021/dream1dev3,localhost:27022/dream1dev3,localhost:27023/dream1dev3?replicaSet=rs0&authSource=admin