javilobo8 / mongors

Mongodb with replicaset running in docker

Documentation

A simple docker compose file to run a mongodb database in docker with replica set on.

Requirements

• Install Docker and docker compose if you don't have them already.

Installation

1. Clone the repository:

git clone https://github.com/javilobo8/mongors.git && cd mongors

2. Copy default configuration to .env file:

cp .env.example .env

3. Apply the configuration you want to the .env file:

• RS -> The replicas set name (Default: rs0)
• HOST -> The replica set host (Default: 127.0.0.1)
• PORT -> The replica set port (Default: 27017)
• DATA -> The folder where the database information will be stored (Default: ./data/db)

4. Start the container

docker compose up -d

5. Initialize the replica set (Only the first time you run the container)

docker exec -it rs0 mongosh # This will open the mongo shell
rs.initiate() # This will initialize the replica set
rs.status() # This will show the replica set status
exit # This will exit the mongo shell

Updating from previous versions

If you are updating from a previous version, you will need to remove the old container and create a new one. To do so, follow these steps:

1. Stop the container

docker compose down

2. Remove the container

docker rm rs0

3. Check mongodb version in compose.yml file and update it if needed
4. Start the container

docker compose up -d