1 00:00:04,760 --> 00:00:11,750 No doctor is available for use, and now it's time to create the custom Docker image from our API folder 2 00:00:12,290 --> 00:00:17,420 and then that Docker image, we will put the all files located in this folder. 3 00:00:17,900 --> 00:00:25,520 And afterwards, we will create container based on this newly created image and we will run such container. 4 00:00:26,180 --> 00:00:32,689 And in order to create new image using Docker, you need to create a file with instructions for Docker, 5 00:00:33,020 --> 00:00:35,660 and this file is called Docker file. 6 00:00:36,290 --> 00:00:39,860 Let's start with that and list in the root of the API a folder. 7 00:00:39,950 --> 00:00:42,830 Create new file gold docker file. 8 00:00:43,070 --> 00:00:46,250 Starting from the capital deep docker file. 9 00:00:46,640 --> 00:00:50,510 And notice that we as gold will automatically recognize type of this file. 10 00:00:50,690 --> 00:00:52,820 And here with this Docker item. 11 00:00:53,250 --> 00:00:59,480 So let's create such file and immediately you'll see suggestion from the school to install recommended 12 00:00:59,480 --> 00:01:02,990 extensions for Docker, and let's go ahead and install them. 13 00:01:03,680 --> 00:01:10,670 Extension is gold Docker and using such extension that you're able to very easily build new images and 14 00:01:10,670 --> 00:01:11,960 Darren Docker containers. 15 00:01:12,110 --> 00:01:17,120 Also, there was Docker Explorer many, many different features available directly in the code. 16 00:01:17,510 --> 00:01:24,020 Let me close this step and let me close this step as well, and let's keep only Docker file open here. 17 00:01:24,620 --> 00:01:29,750 So now let's write some instructions for Docker in this Docker a file. 18 00:01:30,380 --> 00:01:33,620 The instruction will be from and using such instruction. 19 00:01:33,650 --> 00:01:41,090 You could tell Docker which based image it should use for your custom image, and we will use by adding 20 00:01:41,090 --> 00:01:41,870 based image. 21 00:01:42,590 --> 00:01:46,010 There are, of course, multiple decks for this base image. 22 00:01:46,400 --> 00:01:50,720 And let's quickly go to Docker hub and verify which tracks are available for use. 23 00:01:51,200 --> 00:01:56,180 Let's open up a Google Chrome and here in the new tab, let's open Docker Hub. 24 00:01:57,610 --> 00:02:01,570 And click on the second link that leads you to have the doctor com. 25 00:02:02,740 --> 00:02:05,980 And he search for by them like that. 26 00:02:06,580 --> 00:02:09,030 And click here on this ghost by Adam Link. 27 00:02:09,580 --> 00:02:12,220 It will lead you to buy it on an image page. 28 00:02:12,400 --> 00:02:14,170 It is official Docker image. 29 00:02:14,710 --> 00:02:19,660 And in the description, you might find which tags are available for use. 30 00:02:20,290 --> 00:02:26,950 Here was a long, long list of the attacks and I'll use abortion data scrolled 3.9. 31 00:02:27,250 --> 00:02:29,640 If I search for it, I'll find it here. 32 00:02:30,220 --> 00:02:32,310 And it is basically tech for Brazil. 33 00:02:32,320 --> 00:02:38,980 Three Dot 9.4 Because as you might see, there are several things that point to the same image. 34 00:02:39,190 --> 00:02:47,170 For instance, text 3.9 Dot from 3.9 three and latest point to the version 3.9 9.4 four. 35 00:02:47,560 --> 00:02:51,850 Because at the moment of this recording, the latest version is 3.2 9.4. 36 00:02:52,540 --> 00:02:57,970 There are, of course, release candidate versions for the next version of the title, but I'll utilize 37 00:02:57,970 --> 00:03:04,000 this latest one and I'll specify this exact text 3.9 this way. 38 00:03:04,060 --> 00:03:09,220 Let's go back to doggerel file here and type text 3.9 like that? 39 00:03:09,880 --> 00:03:11,980 First instruction for base image? 40 00:03:12,670 --> 00:03:15,210 Next instruction will work deal. 41 00:03:15,520 --> 00:03:21,670 Notice that the Ice-Cold suggests, you know, to use different instructions in this Dogra file. 42 00:03:21,970 --> 00:03:24,640 That's because we installed Docker extension. 43 00:03:25,390 --> 00:03:27,850 Let's select this option from dropdown list. 44 00:03:28,180 --> 00:03:33,220 And here you need to specify path to the working directory inside of the image. 45 00:03:33,670 --> 00:03:40,730 And then that working directory Docker will actually store all your application files where there was 46 00:03:40,730 --> 00:03:47,350 a folder called API, and there are such files as amended by B.A.P File and all those inside. 47 00:03:48,260 --> 00:03:54,410 And those files that are located in the FBI folder, we want to throw in their working directory inside 48 00:03:54,410 --> 00:03:55,370 of the image. 49 00:03:56,270 --> 00:03:58,070 This way here let's be sapphire. 50 00:03:58,070 --> 00:04:01,660 For instance, Bath gold flares up like that. 51 00:04:02,030 --> 00:04:03,470 The stands for application. 52 00:04:04,320 --> 00:04:10,520 Notice that it is actually possible to place all application files in the root of the file system of 53 00:04:10,520 --> 00:04:13,970 corresponding image, but it's not the recommended practice. 54 00:04:14,300 --> 00:04:20,390 You should always create a separate folder like this one and place all application of files inside of 55 00:04:20,390 --> 00:04:20,660 it. 56 00:04:21,200 --> 00:04:23,990 And when will create a container based on this image? 57 00:04:24,110 --> 00:04:29,340 I'll demonstrate to you how file system inside of the container looks like the moment. 58 00:04:29,360 --> 00:04:34,970 Let's keep this instruction like this working directory points less up. 59 00:04:35,420 --> 00:04:42,440 Notice also that Docker will automatically create such folder if it is absent using Make Directory Command. 60 00:04:42,800 --> 00:04:46,910 You don't need to specify a separate command for creation of such folder. 61 00:04:47,690 --> 00:04:53,470 Next instruction that we will add here in the file is called Expose Lists Type Expose and you'll see 62 00:04:53,480 --> 00:04:55,130 suggestion expose fraud. 63 00:04:55,250 --> 00:04:56,360 Let's select it. 64 00:04:56,900 --> 00:05:03,770 And here, instead of brought, you need to type port number that you want to expose from such image. 65 00:05:04,430 --> 00:05:08,660 And that's that broad that is used for launch of our application. 66 00:05:09,180 --> 00:05:12,290 Let's open up explorer and go to a file. 67 00:05:12,440 --> 00:05:17,960 And here on this line, we start Python Flask, a web server at Broad 50 50. 68 00:05:18,350 --> 00:05:21,740 And that's that broad that we should expose in Docker. 69 00:05:22,220 --> 00:05:28,010 So let's go to Docker file and here type expose 50 50 like that. 70 00:05:28,970 --> 00:05:35,900 Next will be instructions related to installation of the Python dependencies inside of the Docker image, 71 00:05:36,860 --> 00:05:43,280 and remember that in our project there was a file called B.A.P File, and inside of this file you'll 72 00:05:43,280 --> 00:05:46,910 see a list of packages that our application depends on. 73 00:05:47,120 --> 00:05:54,210 For instance, flask request python, not envy for squirrels and also their packages like BlackBerry 74 00:05:54,210 --> 00:05:55,100 Island and so on. 75 00:05:55,880 --> 00:06:01,460 But in order to run our application, we actually require only those packages that are listed under 76 00:06:01,460 --> 00:06:02,570 the packages section. 77 00:06:03,320 --> 00:06:07,700 Their packages are acquired only during development brought us this way. 78 00:06:07,710 --> 00:06:12,170 Basically, Insider was a Docker container that will be created based on the image. 79 00:06:12,590 --> 00:06:14,830 We don't require day of packages. 80 00:06:14,840 --> 00:06:18,680 We only need those packages listed here under this section. 81 00:06:19,520 --> 00:06:21,580 This way, now inside there was a Docker file. 82 00:06:21,590 --> 00:06:28,100 We will add some Docker instructions for installation of all those packages from this baby file. 83 00:06:28,580 --> 00:06:35,630 Let's do that here in Docker file and next command, we'll be following run and after run you need to 84 00:06:35,630 --> 00:06:41,770 type specific command and first command will be pipe install baby. 85 00:06:41,810 --> 00:06:44,600 And we record that we used baby. 86 00:06:44,840 --> 00:06:52,030 And we also call it on our computers for creation of the Python environment because we are running API 87 00:06:52,050 --> 00:06:58,430 service inside of the Python environment, inside of the container that will be based on this Docker 88 00:06:58,430 --> 00:06:58,850 image. 89 00:06:59,270 --> 00:07:05,060 We will run our application directly without Python view environment. 90 00:07:05,990 --> 00:07:06,420 Why? 91 00:07:06,650 --> 00:07:13,280 Because there was no need to create separate virtual environment for our based servers because container 92 00:07:13,310 --> 00:07:15,250 will be sole purpose. 93 00:07:15,260 --> 00:07:17,960 It will around only our single application. 94 00:07:18,380 --> 00:07:24,110 This way, we are able to very easily install all dependencies globally in that container. 95 00:07:24,290 --> 00:07:32,120 No need for creation of the python environment, but we need to install some all dependencies of our 96 00:07:32,120 --> 00:07:32,660 project. 97 00:07:32,990 --> 00:07:35,390 And for that, we could utilize pipe. 98 00:07:36,680 --> 00:07:46,550 And using cap envy, we are able to generate special tax file for people with least of all dependencies 99 00:07:46,550 --> 00:07:49,170 of our application and afterwards using. 100 00:07:49,950 --> 00:07:54,260 We will install all dependencies globally inside of this image. 101 00:07:54,830 --> 00:08:00,170 So let's add one more run command and it will be the HP Envy. 102 00:08:00,320 --> 00:08:09,100 Look, there's this requirements like that greater than sign and hero type requirements, not DSD. 103 00:08:10,100 --> 00:08:18,010 Would this command essentially will do it will use envy in order to create a list of all requirements 104 00:08:18,530 --> 00:08:24,320 Romsey, P, P, E and V file this file that we have inside of our application. 105 00:08:25,710 --> 00:08:33,720 But at the moment, this baby file is absent in this image, and this way, before Ron those comments, 106 00:08:34,110 --> 00:08:43,830 we need to copy both AP File and AP file a block from the API folder to the UP folder in the image. 107 00:08:44,750 --> 00:08:47,690 And for that, we need to use one more instruction called Scorpion. 108 00:08:47,990 --> 00:08:54,590 And we could add somewhere before Rahm commands, for instance, here scorpion and in command, you 109 00:08:54,590 --> 00:08:58,280 need to specify the source path and destination path. 110 00:08:58,880 --> 00:08:59,900 Let's first copy. 111 00:09:00,050 --> 00:09:07,310 AP File This file is located in the route of the EPA folder here at the same level as local file. 112 00:09:07,610 --> 00:09:14,150 That's why you could simply type like that copy paper file without a path to it and afterwards will 113 00:09:14,150 --> 00:09:15,170 be destination path. 114 00:09:15,800 --> 00:09:19,940 And this scope is simply using Path Dot for what's less like that. 115 00:09:20,980 --> 00:09:29,260 And in such case, Doro will actually copy such file Bapu file, who's up working directory because 116 00:09:29,260 --> 00:09:32,260 here we help separate instruction work dear. 117 00:09:33,680 --> 00:09:40,070 Also, we need to copy the AP file, but look in order to install exact versions of all packages for 118 00:09:40,070 --> 00:09:46,430 that, we could use one or more command Copia, the AP file the blog and let's copy it to the same destination 119 00:09:46,430 --> 00:09:46,940 folder. 120 00:09:47,150 --> 00:09:48,410 Vote for what's less. 121 00:09:48,770 --> 00:09:53,350 You discount working directory inside of the image if you want. 122 00:09:53,360 --> 00:10:00,230 You could also combine those two copy commands and Typekit one line with copy this file name like that 123 00:10:00,230 --> 00:10:01,190 and paste here. 124 00:10:01,460 --> 00:10:02,700 And it will also work. 125 00:10:02,750 --> 00:10:04,910 Same as those two different commands. 126 00:10:06,240 --> 00:10:12,480 With this instruction in place, Dulquer will equip you two files, the AP file and the AP file that 127 00:10:12,480 --> 00:10:16,020 log to the working directory inside of the image. 128 00:10:16,980 --> 00:10:19,500 And this way I have to run this command. 129 00:10:20,040 --> 00:10:23,700 We will get File Gold Requirements Directive. 130 00:10:24,390 --> 00:10:32,430 It will be created inside of the Docker image, and this file will contain least of all project dependencies 131 00:10:32,670 --> 00:10:36,480 retrieved from zip file and baby file that look. 132 00:10:37,260 --> 00:10:44,970 And this way, we needed to install the API in V dependency because it knows how to extract all packages 133 00:10:45,210 --> 00:10:48,700 from those files to the text file requirements. 134 00:10:50,040 --> 00:10:56,550 And now, using one more command, we are able to install all dependencies listed in these requirements. 135 00:10:56,550 --> 00:10:59,520 But the file and this command is falling. 136 00:10:59,520 --> 00:11:05,030 Baby install this our requirements note. 137 00:11:06,630 --> 00:11:14,010 And after such command, baby will globally in terms of python install all necessary for our application 138 00:11:14,010 --> 00:11:16,680 requirements like flask and others. 139 00:11:17,250 --> 00:11:22,920 Again, there was no need for creation of the separate Python beautiful environment inside of the container, 140 00:11:23,520 --> 00:11:30,150 so this whole necessary requirements will be installed inside of the Docker image and next command will 141 00:11:30,150 --> 00:11:36,180 be copied and we will copy all remaining application files you as a source. 142 00:11:36,210 --> 00:11:42,750 You'll need to type only dot and this nation will be working directory that is represented using Dorton 143 00:11:42,750 --> 00:11:48,390 for what's less so after installation of all those dependencies. 144 00:11:49,080 --> 00:11:57,350 We copy all remaining application files from the API folder and print such file as amended to. 145 00:11:57,360 --> 00:11:59,790 I will be copied to the image. 146 00:12:11,760 --> 00:12:17,010 And lost dog construction, this dog profile will be seemed the stance for comment. 147 00:12:17,520 --> 00:12:23,760 And here in square brackets, we need to put executable along with parameters if necessary. 148 00:12:24,620 --> 00:12:31,670 And this command will be executed when actual, a container that will be based on this image will be 149 00:12:31,670 --> 00:12:32,270 started. 150 00:12:33,080 --> 00:12:33,890 And we'll keep that. 151 00:12:33,890 --> 00:12:39,530 We started our obligation using command python and named the file man to do. 152 00:12:40,100 --> 00:12:42,630 We did that in Python brutal environment. 153 00:12:42,650 --> 00:12:43,690 Here you see the python. 154 00:12:43,690 --> 00:12:47,530 A built environment was activated using a command baby and B cell. 155 00:12:47,960 --> 00:12:52,910 And now in the FBI folder, I could run our eBay service using a command. 156 00:12:52,910 --> 00:12:59,720 Python waned or try and floss web server was just started at broad 50 50. 157 00:13:00,140 --> 00:13:02,570 Let's stop it in the same way. 158 00:13:02,750 --> 00:13:09,910 We will start by a flask service inside of the container using the command python and name of the file 159 00:13:09,920 --> 00:13:10,850 man that boy. 160 00:13:11,540 --> 00:13:19,520 Let's do that here in the command instruction thrust element here in this array will be Python like 161 00:13:19,520 --> 00:13:19,820 that. 162 00:13:20,270 --> 00:13:23,750 And second, one will be parameter, and that is name of the file. 163 00:13:24,040 --> 00:13:25,280 When do I? 164 00:13:26,380 --> 00:13:31,570 And again, such comment by the blast that I will be executed each time. 165 00:13:31,720 --> 00:13:33,640 One container is started. 166 00:13:34,300 --> 00:13:39,820 And notice that here I don't need to specify Python three or any other version of the Python, just 167 00:13:39,820 --> 00:13:40,330 python. 168 00:13:40,630 --> 00:13:46,270 Because here inside of this container, there will be only one part in the version available. 169 00:13:46,510 --> 00:13:47,500 3.9. 170 00:13:48,100 --> 00:13:52,080 And this Python executable points of growth to this version. 171 00:13:52,120 --> 00:13:52,780 3.9. 172 00:13:53,500 --> 00:13:53,950 All right. 173 00:13:54,190 --> 00:13:57,010 This ID for this doggerel file, let's save it. 174 00:13:57,010 --> 00:14:04,270 And let's summarize what happens here on the first line we use base image and despite them, version 175 00:14:04,270 --> 00:14:11,410 3.9 and inside of this image, there was already Python preinstalled along with B.A.P that we need here 176 00:14:11,410 --> 00:14:13,390 in order to install all dependencies. 177 00:14:14,320 --> 00:14:20,980 Next, using work word instruction whispers, a five path working directory inside of the container 178 00:14:21,430 --> 00:14:22,900 and that is folder up. 179 00:14:23,200 --> 00:14:29,290 You could choose any name you want after world using export instruction with withheld that we want to 180 00:14:29,290 --> 00:14:31,230 export brought 50 50. 181 00:14:31,240 --> 00:14:34,840 That is that brought where we were on our Python floor script, cetera. 182 00:14:35,710 --> 00:14:39,510 Next, we copy two files Baby File and Baby File. 183 00:14:39,520 --> 00:14:43,680 Both look from Folder, where our Docker file is located. 184 00:14:43,690 --> 00:14:45,100 It is API folder. 185 00:14:45,250 --> 00:14:52,690 Here are those two files and we compared them to the image to working directory that is fight here. 186 00:14:52,690 --> 00:14:53,620 Isn't this come out? 187 00:14:54,650 --> 00:14:56,810 Next, we run three different commands. 188 00:14:57,110 --> 00:15:04,520 First one to be installed, baby in view and using baby, we installed baby and view package afterwards 189 00:15:04,520 --> 00:15:05,800 using baby envy. 190 00:15:06,180 --> 00:15:09,370 Weekly text file gold requirements data. 191 00:15:10,370 --> 00:15:17,060 Based on those two files and all dependencies of the API service are extracted to the requirements file 192 00:15:17,600 --> 00:15:23,180 and afterward, using kabab, we install all dependencies from this file. 193 00:15:24,080 --> 00:15:30,800 After this moment, inside of the image, there will be all necessary dependencies of our own API application 194 00:15:31,280 --> 00:15:33,620 and they will be installed globally. 195 00:15:33,710 --> 00:15:38,960 We don't create B.A.P in the environment because there is no need for DEP. 196 00:15:39,650 --> 00:15:43,880 Container will be single purpose run python application. 197 00:15:43,910 --> 00:15:47,210 There will be no other applications running this way. 198 00:15:47,330 --> 00:15:51,650 It makes sense to install all the requirements globally inside of the image. 199 00:15:52,400 --> 00:15:59,810 All right, after that, we copy all remaining files from the API folder to the working directory. 200 00:16:00,200 --> 00:16:07,340 It is still up folder inside of the image, and finally, we add, seemed instruction that will run 201 00:16:07,430 --> 00:16:12,440 main file using Python executable inside of the container. 202 00:16:13,040 --> 00:16:19,100 In total, in this Docker file, there are eight steps and the Docker went will build Docker. 203 00:16:19,100 --> 00:16:23,630 Image will go through each instruction one by one step by step. 204 00:16:24,740 --> 00:16:25,160 All right. 205 00:16:25,370 --> 00:16:29,210 Make sure you save the file and then the next lecture of the small bills. 206 00:16:29,360 --> 00:16:32,480 We will build image using this doggerel file. 207 00:16:32,640 --> 00:16:33,560 I'll see you guys next.