1 00:00:04,420 --> 00:00:08,690 No, we are done with this final step in the Corizon Images gallery section. 2 00:00:08,920 --> 00:00:12,580 And we added such services as more and more go express. 3 00:00:13,000 --> 00:00:18,590 And we added to those containers more and Mongo Express to the existing Docker compose file. 4 00:00:19,030 --> 00:00:24,250 And no, actually, let's go to source, control and commit those changes because we are done with Mongo 5 00:00:24,250 --> 00:00:31,180 and Mongo Express configuration for Docker compose and commit mesoscale will be added Mongo and Mongo 6 00:00:31,270 --> 00:00:35,860 Dash Express to the Docker desk compose like that. 7 00:00:36,550 --> 00:00:39,070 Welcome the changes and quickly summarize. 8 00:00:39,670 --> 00:00:44,530 Here we added Mongo service, and for this service we use official Docker. 9 00:00:44,530 --> 00:00:46,140 Image available Addo-Carr. 10 00:00:46,600 --> 00:00:49,090 This what this instruction tells for Docker. 11 00:00:49,720 --> 00:00:54,160 We omitted that here and in this case, Docker utilize this latest deck. 12 00:00:54,790 --> 00:00:58,990 We added a couple of environment variables here with scope of doors variables. 13 00:00:58,990 --> 00:01:04,599 We set MongoDB username and password using such username and password. 14 00:01:04,660 --> 00:01:07,990 We are now able to connect to MongoDB database. 15 00:01:08,770 --> 00:01:11,650 Also, we added volume was meant for that. 16 00:01:11,650 --> 00:01:17,890 We created custom volume called MongoDB data, and this volume was created here. 17 00:01:18,520 --> 00:01:24,790 It was created actually inside of the Docker itself, and in such a way, we are able to persist MongoDB 18 00:01:24,790 --> 00:01:32,080 data between different containers because each time when you run Docker compose up after running Docker 19 00:01:32,080 --> 00:01:38,140 compose down brand new containers are created, including container from Mongo service. 20 00:01:39,100 --> 00:01:46,600 Also, we added one more service called Mongo Express, and for it, we also utilize official image 21 00:01:46,600 --> 00:01:48,250 Gold Mongo Dash Express. 22 00:01:48,880 --> 00:01:55,180 This image contains actually Node.js application that uses Express Web server, and it is a convenient 23 00:01:55,180 --> 00:02:00,810 way for all crud operations for Mongo because actual Mongo has only Mongo Shell. 24 00:02:00,910 --> 00:02:06,520 This command line utility and using Mongo Express, we could work with Mongo much more conveniently. 25 00:02:12,520 --> 00:02:20,590 We exposed your internal brought 88 to one to external support, +1 just for one go express and one 26 00:02:20,830 --> 00:02:22,900 doesn't feel any exposed ports. 27 00:02:23,530 --> 00:02:29,530 Also, there are few environment variables from one to express, such as MongoDB, etc. data set to 28 00:02:29,530 --> 00:02:37,120 hostname or the Mongo server MongoDB admin username that is equal to this username, hero and admin 29 00:02:37,120 --> 00:02:42,250 password that is equal to this password set for this Mongo container. 30 00:02:42,760 --> 00:02:49,270 And also we edit instruction depends on Mongo, and that means that Mongo Express container is started 31 00:02:49,270 --> 00:02:52,240 only after the start of the module container. 32 00:02:52,840 --> 00:02:57,700 And also there are restart options both from ongoing Express and for Mongo. 33 00:02:58,540 --> 00:03:00,820 That's how we edit Mongo to our project. 34 00:03:01,240 --> 00:03:05,230 And please notice that we did not install Mongo on our computers. 35 00:03:05,680 --> 00:03:08,650 Mongo is running all the inside of the container. 36 00:03:09,130 --> 00:03:17,020 If I go to the terminal and open up New tab here and enter Mongo here, I'll get command not found Mongo 37 00:03:17,260 --> 00:03:20,860 because Mongo is not installed directly on my computer. 38 00:03:21,160 --> 00:03:23,620 It does run in all the inside of the container. 39 00:03:24,760 --> 00:03:25,240 All right. 40 00:03:25,390 --> 00:03:27,070 That's it for this summer lecture. 41 00:03:27,070 --> 00:03:33,790 And next, let me explain to you how different containers communicate with each other, and you'll understand 42 00:03:33,790 --> 00:03:38,380 that each container has actually its own IP address assigned by Docker. 43 00:03:38,860 --> 00:03:40,480 Let's explore this after the break.