MongooseServerSelectionError: getaddrinfo EAI_AGAIN mongodb

[itheynamesoimnotgenderracial]

Good day sir.
Please assist me with this issue when connecting mongo docker to the mongoose to start the server. I'm new to docker and I'm trying to connect mongo docker to mongoose but apparently, things are not working so well. Your assistance would be highly appreciated.

Error:

 MongooseServerSelectionError: getaddrinfo EAI_AGAIN mongodb
 at NativeConnection.Connection.openUri (/home/app/node_modules/mongoose/lib/connection.js:824:32)
 at /home/app/node_modules/mongoose/lib/index.js:380:10
 at /home/app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:41:5
 at new Promise ()
 at promiseOrCallback (/home/app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:40:10)
 at Mongoose._promiseOrCallback (/home/app/node_modules/mongoose/lib/index.js:1225:10)
 at Mongoose.connect (/home/app/node_modules/mongoose/lib/index.js:379:20)
 at connectDB (/home/app/connections/database.js:4:18)
 at start (/home/app/server.js:31:9)
 at Object. (/home/app/server.js:39:1) {
 reason: TopologyDescription {
 type: 'Unknown',
 servers: Map(1) { 'mongodb:27017' => [ServerDescription] },
 stale: false,
 compatible: true,
 heartbeatFrequencyMS: 10000,
 localThresholdMS: 15,
 logicalSessionTimeoutMinutes: undefined
 },
 code: undefined
 }

mongo.yaml

version: "3"
services:
  mongodb:
    image: mongo
    ports:
      - 27017:27017
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=password
  mongo-express:
    image: mongo-express
    depends_on:
      - mongodb
    restart: always
    ports:
      - 8080:8081
    environment:
      - ME_CONFIG_MONGODB_ADMINUSERNAME=admin
      - ME_CONFIG_MONGODB_ADMINPASSWORD=password
      - ME_CONFIG_MONGODB_SERVER=mongodb
      - ME_CONFIG_MONGODB_HOSTNAME=localhost

server.js

const express = require("express");
const app = express();
const bodyParser = require("body-parser");
const path = require("path");

// Routes and controllers
const router = require("./routes/route");
const controller = require("./controllers/controller");
const connectDB = require("./connections/database");
const User = require("./models/User");

app.use(express.json());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({
extended: true,
limit: "100000mb",
parameterLimit: 10000000
}));

app.use("/public", express.static(path.join(__dirname, "assets")));
app.set("views", __dirname + "/views");
app.set("view engine", "ejs");
app.get("/", async (req, res) => {
res.render("index");
});

app.use("/api/v1/test", router);
const PORT = 3000;
const start = async () => {
try {
await connectDB("mongodb://admin:password@mongodb");
app.listen(PORT, () => console.log(Server is listening to port ${PORT}));
} catch(error) {
console.log(error);
return error;
}
}

start();

Thank you.