1 00:00:04,540 --> 00:00:10,180 I just made a quick overview of the Moon and Moon Express official Docker images, and now it's time 2 00:00:10,180 --> 00:00:17,620 to create additional services in our own Docker compose file and add their Mongo and Monaco Express 3 00:00:17,620 --> 00:00:20,320 services in order to save some time. 4 00:00:20,440 --> 00:00:26,200 Let's simply grab those lines from this example and insult them to the Docker compose file. 5 00:00:26,470 --> 00:00:31,480 Let's go there, and let's insert those services below API here. 6 00:00:31,810 --> 00:00:38,980 Make sure that you go to the same level as API and front end services here in this Yamal file and based 7 00:00:39,010 --> 00:00:43,210 corporate lines like that, and make sure that formatting is correct. 8 00:00:43,840 --> 00:00:46,300 And let's, of course, make some adjustments here. 9 00:00:46,810 --> 00:00:54,790 There also is Mongo and the hear whispers if I image and it means for Docker that we want to use official 10 00:00:54,790 --> 00:00:58,510 image from the Docker hop hero's name or such image. 11 00:00:58,960 --> 00:01:03,400 And if you want, you could also at Caltech lead us, but we will admit it. 12 00:01:03,490 --> 00:01:06,640 In such case, Docker will attack latest automatically. 13 00:01:07,090 --> 00:01:09,550 Let's keep or start always here and here. 14 00:01:09,760 --> 00:01:11,170 Same as in the example. 15 00:01:11,290 --> 00:01:17,050 In such case, Docker will restart containers automatically in case of any failures and environment. 16 00:01:17,050 --> 00:01:20,140 Variables here will be kept, as you'll see here. 17 00:01:20,350 --> 00:01:28,990 But let's change this example password to a NAS, or let's say, very this strong db, this password 18 00:01:29,260 --> 00:01:29,770 like that. 19 00:01:30,250 --> 00:01:36,010 And also, let's take this password and insert it here instead of this example password. 20 00:01:36,400 --> 00:01:43,660 Also here in Mongo Express section, let's add one more environment variable gold and eve underscore 21 00:01:43,660 --> 00:01:52,180 config underscore MongoDB under a scroll etc column and well, you will be Mongo. 22 00:01:52,750 --> 00:01:59,800 He does name of the Mongo service here, and I told you in the previous lecture that such Mongo hostname 23 00:01:59,800 --> 00:02:06,520 instead was a Docker will be resolved by DNS of the Docker to correspondent IP address of the running 24 00:02:06,520 --> 00:02:10,180 container container that will be running Mongo servers. 25 00:02:10,509 --> 00:02:12,880 And of course, I'll show you how it looks from inside. 26 00:02:13,480 --> 00:02:17,980 Also here you see both mapping and internal brought. 27 00:02:18,050 --> 00:02:25,900 A Dubon inside of the Mongo Express is mapped to external brought on your computer aided 12:52, and 28 00:02:25,900 --> 00:02:32,020 that means that you will be able to access graphical user interface of the Mongo Express because it 29 00:02:32,020 --> 00:02:38,950 has actually it is based on the express and more, and it means that you will be able to access it in 30 00:02:38,950 --> 00:02:43,810 any web browser using local host Golden 88 to one address. 31 00:02:44,590 --> 00:02:48,520 But notice that Mongo doesn't have any exposed ports. 32 00:02:49,150 --> 00:02:52,300 It doesn't mean that the Mongo does not utilize ports. 33 00:02:52,330 --> 00:02:56,650 Of course, it uses corresponding ports in order to be able to accept incoming requests. 34 00:02:57,610 --> 00:03:02,620 But Mongo will not be exposed to outside world. 35 00:03:02,920 --> 00:03:10,540 It will be available only from all the containers, for example, from one express or from API. 36 00:03:11,050 --> 00:03:17,890 Because usually eBay's servers communicate directly with databases, and the Noah Project API container 37 00:03:18,010 --> 00:03:25,570 should interact with Mongo container, and it is possible inside of the Docker using Mongo as a hostname 38 00:03:25,600 --> 00:03:26,850 of the Mongo container. 39 00:03:28,010 --> 00:03:35,660 And again, there was no need to expose Mongeau to outside world and to add for something Mongeau Express 40 00:03:35,660 --> 00:03:38,180 will communicate with Mongeau internally. 41 00:03:39,470 --> 00:03:39,850 All right. 42 00:03:40,200 --> 00:03:45,630 That's actually all configuration that needs to be done in order to bring up two additional services, 43 00:03:45,900 --> 00:03:53,280 mourn and mourn, Go Express and basically let me add one more instruction here and to scold depends 44 00:03:53,940 --> 00:04:01,770 on underscore on and with such instruction in place, you could at least of the containers that current 45 00:04:01,770 --> 00:04:03,600 container depends on. 46 00:04:04,200 --> 00:04:09,570 And with such configuration, if you enter here, for instance, Morning Good Morning Express container 47 00:04:09,600 --> 00:04:13,960 will be started by Docker only after start of the morning. 48 00:04:13,960 --> 00:04:17,610 The container that's what depends on instruction means. 49 00:04:18,329 --> 00:04:20,329 That's why let's give this instruction here. 50 00:04:20,579 --> 00:04:26,880 We want to start Moonglow Express after Mongo and let's say changes here in this Docker compose file. 51 00:04:27,360 --> 00:04:32,880 Now there are four different services front and API Mongo and Mongo Express. 52 00:04:33,900 --> 00:04:40,020 Let's not go ahead and using Docker compose up command, bring up those two additional services. 53 00:04:40,290 --> 00:04:42,330 But let's do that, of course, after the small balls.