Question

这是我的服务器。 js file:

let path = require( path );
let fs = require( fs );
let MongoClient = require( mongodb ).MongoClient;
let bodyParser = require( body-parser );
let app = express();

app.use(bodyParser.urlencoded({
  extended: true
}));
app.use(bodyParser.json());

app.get( / , function (req, res) {
    res.sendFile(path.join(__dirname, "index.html"));
  });

  
app.get( /profile-picture , function (req, res) {
  let img = fs.readFileSync(path.join(__dirname, "images/profile-1.jpg"));
  res.writeHead(200, { Content-Type :  image/jpg  });
  res.end(img,  binary );
});
let mongoUrlLocal = "mongodb://admin:password@localhost:27017";
let mongoUrlDocker = "mongodb://admin:password@mongodb";
let mongoClientOptions = { useNewUrlParser: true, useUnifiedTopology: true };
let databaseName = "user-account";

app.post( /update-profile , function (req, res) {
  let userObj = req.body;
    MongoClient.connect( mongodb://localhost:8080 , function (err, client) {
    if (err) throw err;

    let db = client.db(databaseName);
    userObj[ userid ] = 1;

    let myquery = { userid: 1 };
    let newvalues = { $set: userObj };

    db.collection("users").updateOne(myquery, newvalues, {upsert: true}, function(err, res) {
      if (err) throw err;
      client.close();
    });

  });
  // Send response
  res.send(userObj);
});

app.get( /get-profile , function (req, res) {
  let response = {};
  // Connect to the db
    MongoClient.connect( mongodb://admin:password@localhost:8080 , function (err, client) {
    if (err) throw err;

    let db = client.db(databaseName);

    let myquery = { userid: 1 };

    db.collection("users").findOne(myquery, function (err, result) {
      if (err) throw err;
      response = result;
      client.close();

      // Send response
      res.send(response ? response : {});
    });
  });
});

app.listen(3000, function () {
  console.log("app listening on port 3000!");
});

这是我的cker。垃圾处理

version:  3 
services:
  # my-app:
  # image: ${docker-registry}/my-app:1.0
  # ports:
  # - 3000:3000
  mongodb:
    image: mongo
    ports:
      - 27017:27017
    environment:
      - MONGO_INITDB_ROOT_USERNAME=admin
      - MONGO_INITDB_ROOT_PASSWORD=password
    volumes:
      - mongo-data:/data/db
  mongo-express:
    image: mongo-express
    restart: always # fixes MongoNetworkError when mongodb is not ready when mongo-express starts
    ports:
      - 8080:8081
    environment:
      - ME_CONFIG_MONGODB_ADMINUSERNAME=admin
      - ME_CONFIG_MONGODB_ADMINPASSWORD=password
      - ME_CONFIG_MONGODB_SERVER=mongodb
volumes:
  mongo-data:
    driver: local

这是Dockerfile:


ENV MONGO_DB_USERNAME=admin 
    MONGO_DB_PWD=password

RUN mkdir -p /home/app

COPY ./app /home/app
WORKDIR /home/app
RUN npm install
CMD ["node", "server.js"]

当我操作docker-compose -f docker-compose.yml up,发现这一错误:

ms","Start up the replication coordinator":"6 ms","Start transport layer":"2 ms","_initAndListen total elapsed time":"909 ms"}}}}        
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Try again
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | Wed Apr  3 01:27:38 UTC 2024 retrying to connect to mongo:27017 (2/10)
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Try again
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | Wed Apr  3 01:27:44 UTC 2024 retrying to connect to mongo:27017 (3/10)
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Try again
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | Wed Apr  3 01:27:50 UTC 2024 retrying to connect to mongo:27017 (4/10)
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Try again
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | Wed Apr  3 01:27:56 UTC 2024 retrying to connect to mongo:27017 (5/10)
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Name does not resolve
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | Wed Apr  3 01:28:00 UTC 2024 retrying to connect to mongo:27017 (6/10)
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Name does not resolve
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | Wed Apr  3 01:28:05 UTC 2024 retrying to connect to mongo:27017 (7/10)
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Try again
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | Wed Apr  3 01:28:11 UTC 2024 retrying to connect to mongo:27017 (8/10)
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Try again
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | Wed Apr  3 01:28:17 UTC 2024 retrying to connect to mongo:27017 (9/10)
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Try again
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | Wed Apr  3 01:28:23 UTC 2024 retrying to connect to mongo:27017 (10/10)
mongo-express-1  | /docker-entrypoint.sh: line 15: mongo: Try again
mongo-express-1  | /docker-entrypoint.sh: line 15: /dev/tcp/mongo/27017: Invalid argument
mongo-express-1  | No custom config.js found, loading config.default.js
mongo-express-1  | Welcome to mongo-express 1.0.2

And unable to run this app at port 3000 with node server.js It goes into app listening at port 3000 but on the browser it s all empty. Reference for this: https://www.youtube.com/watch?v=3c-iBn73dDE&t=7223s

Answer 1

基本上,<代码>mongo-express 多克形象是 b。

<代码>mongo-express> 自行使用ME_CONFIG_MONGODB_SERVER。如果是(并且将更喜欢ME_CONFIG_MONGODB_URL)的条目编号(/docker-enterpoint.sh)只有使用的ME_CONF_MONDODB_URL。载有。

if [[ "$ME_CONFIG_MONGODB_URL" != *,* ]]; then
    work=$ME_CONFIG_MONGODB_URL
    # Remove the scheme (should be "mongodb://" or "mongodb+srv://").
    work=${work#*://}
    # Remove the path component of the URL (should just be a "/").
    work=${work%%/*}
    # Remove the userinfo.
    work=${work#*@}
    if [[ "$work" = *:* ]]; then
        # Match the host.
        host=${work%:*}
        # Match the port.
        port=${work#*:}
    else
        host=$work
        port=27017
    fi

    # wait for the mongo server to be available
    echo "Waiting for $host:$port..."
    wait_tcp_port "$host" "$port" "${ME_CONFIG_CONNECT_RETRIES:-10}"
fi

图像还设定了ME_CONFIG_MONGODB_URL>mongodb://mongo:27017的违约值。由于你重新设置了<代码>ME_CONFIG_MONGODB_SERVER,但not<>>>>>> 代码>ME_CONFIG_MONGODB_URL,因此,根据这一缺省值,切入点等待与服务器代码>/code>连接。

我们可以确定这一点,为<代码>提供适当的价值。 ME_CONFIG_MONGODB_URL:

services: mongodb: image: mongo ports: - 27017:27017 environment: MONGO_INITDB_ROOT_USERNAME: admin MONGO_INITDB_ROOT_PASSWORD: password volumes: - mongo-data:/data/db mongo-express: image: mongo-express restart: always # fixes MongoNetworkError when mongodb is not ready when mongo-express starts ports: - 8080:8081 environment: ME_CONFIG_MONGODB_ADMINUSERNAME: admin ME_CONFIG_MONGODB_ADMINPASSWORD: password ME_CONFIG_MONGODB_SERVER: mongodb ME_CONFIG_MONGODB_URL: mongodb://mongodb:27017 volumes: mongo-data:

上述堆肥文件成功地建立了<代码>mongo-express。

你也可以通过重新命名<代码>mongodb服务 to mongo,从而解决这个问题,这样就能够与违约行为保持一致。

Answer 2

can you help script this algorithm to the alight motion app" I want to do it on WordPress

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