Instructions
The steps to create a docker cluster are as follows.
- Start one instance of MongoDB.
- Initiate the Replica Set.
Once you have a MongoDB cluster up and running, you will be able to experiment with it.
How it will look like:
graph LR
Application[Application] -- Read --> MongoDB(MongoDB)
Application[Application] -- Write --> MongoDB(MongoDB)
Run MongoDB in docker
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docker run -d -p 27017:27017 --name mongodb mongo:6.0.4 mongod --replSet myReplicaSet
Initiate replica set
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docker exec -it mongodb mongosh --eval "rs.initiate({
_id: \"myReplicaSet\",
members: [
{_id: 0, host: \"localhost\"}
]
})"
Test and verify replica set
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docker exec -it mongodb mongosh --eval "rs.status()"