I created a container for running mongoDB using the command (no docker compose used):

I am trying to launch two docker (mongodb and mongo-express) containers using separate commands, I created a network and launched the mongodb container successful.

version: ‘3’
services:
mongodb:
image: mongo
container_name: mongodb
ports:
– 27017:27017
environment:
MONGO_INITDB_ROOT_USERNAME: admin
MONGO_INITDB_ROOT_PASSWORD: mypassword
# volumes:
# – ./database-data:/data/db