Simple MongoDB replica set docker compose file.
In order to use Transaction function in MongoDB, you need a set of a replicated databases named MongoDB replica set.
This project makes it easy to build a MongoDB replica set circumstances by using docker container.
This project uses a Docker container for virtualizing Database circumstances. Therefore, Docker must be installed
To set localhost host environment, Direnv must be installed
how to install direnv?
install with brew
brew install direnvset bash configuration(if you use bash) set zsh configuration(if you use zsh)
vi ~/.bashrc or vi ~/.zshrc
# add below configuration
eval "$(direnv hook bash)" or eval "$(direnv hook zsh)"
# apply
source ~/.bashrc or source ~/.zshrcPull all the necessary docker image from docker hub and set up replica set configuration
docker-compose upSet host name so that localhost can connect to docker container's internal ip with given mongodb configuration setting
direnv allowChanging directory to /dev triggers direnv setting so that hostname mongo-rs0-1, mongo-rs0-2, mongo-rs0-3 will be registered in you pc
cd devIf you have Err: direnv: error .envrc is blocked Run direnv allow to approve its content.
direnv allowdocker exec mongodb-replica-set_mongo-rs0-1_1 bash -c 'mongo --eval "rs.status()"'result
In members field you can find member who has "PRIMARY" in "stateStr" field, and that is a Primary Node
mongo 'mongodb://test:test1234@mongo-rs0-1:27017,mongo-rs0-2:27018,mongo-rs0-3:27019/test?replicaSet=rs0'mongo --host `mongo mongo-rs0-1:27017 --quiet --eval "db.isMaster()['primary']"`Create Admin Account
mongo
use admin
db.createUser({user: "root", pwd: "test1234", roles: [{ role: "root", db: "admin" }] });Create Database and matching account
mongo
use testdb
db.createUser(
{ user: "test",
pwd: "test1234",
roles: ['readWrite','userAdmin'] } )
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