error connecting to cube with mongo

**Problem**
i am trying to use mongo db with cube.
This is my container on docker:
```
cube:
container_name: cube
image: cubejs/cube
ports:
- 3001:3000
- 4000:4000
environment:

- CUBEJS_DEV_MODE=true
- CUBEJS_DB_TYPE=mongobi
- CUBEJS_DB_HOST=mongodb
- CUBEJS_DB_PORT=27017
- CUBEJS_DB_NAME=mydatabase
- CUBEJS_DB_USER=user
- CUBEJS_DB_PASS=password
- CUBEJS_API_SECRET=SECRET
- CUBEJS_WEB_SOCKETS=true
- CUBEJS_DB_SSL=true
# - CUBEJS_DB_SSL_CA=./certs/fullchain.pem
# - CUBEJS_DB_SSL_KEY=./certs/privkey.pem
volumes:
- .:/cube/conf
networks:
- app-tier
```

I am sure of the values i am putting there.
but i am getting this error "Error while loading DB schema
Error: connect ETIMEDOUT at PromiseConnection.connect (/cube/node_modules/mysql2/promise.js:171:22) at Object.create (/cube/node_modules/@cubejs-backend/mongobi-driver/src/MongoBIDriver.ts:112:30) at MongoBIDriver.testConnection (/cube/node_modules/@cubejs-backend/mongobi-driver/src/MongoBIDriver.ts:182:63) at CubejsServerCore.getDriver (/cube/node_modules/@cubejs-backend/server-core/src/core/server.ts:800:20) at processTicksAndRejections (node:internal/process/task_queues:96:5) at /cube/node_modules/@cubejs-backend/server-core/src/core/DevServer.ts:108:22 at /cube/node_modules/@cubejs-backend/server-core/src/core/DevServer.ts:78:9"