Docker image running have getaddrinfo eai_again maps.googleapis.com:443

Im using the Express generator to generate the pug view Im using the npm 5.4.2 and nodejs 6.x Im using the npm start my app without any problem but when I build this app into a docker image, and then run it. It comes out the problem like dns problem.

  function createGoogleOptions(query){
    var options = {
        hostname: 'maps.googleapis.com',
        port: 443,
        path: '/maps/api/geocode/json?',
        method: 'GET'
    };

    var str = 'address=' + query +'&key=' + 'AIzaSyA9wNCIiINgXZITnyP1p3MGMWTdaWpJtMk';
    options.path += str;
    console.log(options.path);
    return options;
  }


var express = require('express');
var router = express.Router();
const request =require('request');

var https = require('https');
var http = require('http');

/* GET home page. */
router.get('/', function(appReq, appRes, next) {
  console.log(appReq.url);
  console.log(appReq.path);
  console.log(appReq.query.location);


  function createGoogleOptions(query){
    var options = {
        hostname: 'maps.googleapis.com',
        port: 443,
        path: '/maps/api/geocode/json?',
        method: 'GET'
    };

    var str = 'address=' + query +'&key=' + 'AIzaSyA9wNCIiINgXZITnyP1p3MGMWTdaWpJtMk';
    options.path += str;
    console.log(options.path);
    return options;
  }

    function createYelpOptions(term,lat, lng){

    var options = {
      hostname: 'api.yelp.com',
      port: 443,
      path: '/v3/businesses/search?',
      method: 'GET',
      headers: {
        'Authorization' : 'Bearer lTy6fRnbm063oo_X3itFala7Y5yb6DS8wIlX_oteHqDr0xn5yHNwXCXu14cLMKj6WobnGVCOSMSNQIvXxRyvdkwYRwu3BKEP13GbiQCWcOCm72C3jf2ee8tkvy3GWXYx'
        //'user-key' : 'eefc2a80e3a6ccdee95930f59d476b56'
      }
    };

    term= 'hotel';

    var str = 'term='+ term + '&latitude=' + lat + '&longitude=' + lng ;
    options.path += str;
    console.log(options.path);

    return options;
  }
  
  var query = appReq.query.location.replace(/ /g, "+");
  var options = createGoogleOptions(query);
  var googleReq = https.request(options, function(googleRes){

        var body = [];
        googleRes.on('data', function(chunk){
            body.push(chunk);
        });

        googleRes.on('end', function(){
            var bodyString = body.join("");
            var geoRsp = JSON.parse(bodyString);
            console.log("Google result : " + geoRsp.status);            
            if(geoRsp.status == "OK"){
                var location_result = geoRsp.results[0].geometry.location;
                console.log("Geolocation API response" + appReq.query.location);
                console.log("Lat : " + location_result.lat + " Lng : " + location_result.lng);
                var yelpOptions = createYelpOptions('hotel',location_result.lat,location_result.lng);
                var yelpReq = https.request(yelpOptions, function(yelpRes){
                  console.log('headers: ', yelpRes.headers);
                  console.log('statusCode: ', yelpRes.statusCode);
                  var body = '';
                  yelpRes.on('data',function(chunk) {
                    body += chunk;
                  });
                  yelpRes.on('end', function() {
                    var yelpRsp = JSON.parse(body);
                    console.log("Result found :" + yelpRsp.total);
                    appRes.setHeader("content-type","text/html");
                    appRes.setHeader("Access-Control-Allow-Origin", "*");
                    appRes.render('hotel',{yelpRsp});
                    appRes.end();
                  });
                });

                yelpReq.on('error', (e) => {
                    console.error(e);
                });

                yelpReq.end();

            } else {
                console.log("Result not found !!!!");
                appRes.setHeader("Content-Type", "text/html");
                appRes.setHeader("Access-Control-Allow-Origin", "*");
                var hotelResult = {'totalHotelCount' : 0
                };
                appRes.render('index',{});
                appRes.end();
            }
        });
    });
    
    googleReq.on('error', (e) => {
       console.error(e);
    });

    googleReq.end();
});
module.exports = router;

Thanks!

[MartinMuzatko]

Restarted docker - solved it for me.

[DhinendraRajapakse]

@MartinMuzatko answer solved this issue when you have variable names for mapping url to ip best to give docker a restart and then it should be able to resolve them . sudo systemctl restart docker