1 00:00:00,660 --> 00:00:07,800 In this video, we are going to learn what is a CDK cloud development kit. 2 00:00:08,850 --> 00:00:15,780 A CDK Cloud Tool Kit is an open source software development framework to define your cloud application 3 00:00:15,780 --> 00:00:19,140 resources using familiar programming language. 4 00:00:19,870 --> 00:00:26,290 So provisioning cloud applications can be a challenging process that requires you to perform manual 5 00:00:26,290 --> 00:00:31,960 actions, write custom scripts, maintain templates, or learn domain specific languages. 6 00:00:33,030 --> 00:00:40,110 A.W. CDK, using the familiarity and expressive power of programming language for modeling your application 7 00:00:40,110 --> 00:00:41,190 infrastructures. 8 00:00:42,920 --> 00:00:49,820 CDK provides high level components called constructs that preconfigured cloud resources with proven 9 00:00:49,820 --> 00:00:50,540 defaults. 10 00:00:50,540 --> 00:00:55,490 So you can read cloud application with easy using the Cdcc constructs. 11 00:00:56,120 --> 00:01:04,720 A Cdcc provides a library of constructs in many programming language to easily automate aid infrastructures. 12 00:01:05,120 --> 00:01:12,830 In addition, these constructs can be customised and can be used to provision your application infrastructures, 13 00:01:14,120 --> 00:01:20,960 aid, cdcc provisions, your resources in a safe, repeatable manner through a cloud formation. 14 00:01:20,960 --> 00:01:29,990 So that means cdcc using cloud formation on behind of the chicken and edible Cdcc provide the writing 15 00:01:29,990 --> 00:01:33,740 infrastructure with familiar language object oriented programming language. 16 00:01:33,860 --> 00:01:40,370 It is also allows you to compose and share your own custom constructs, incorporating your organisation 17 00:01:40,370 --> 00:01:44,150 requirement and helping you to expedite new projects. 18 00:01:45,790 --> 00:01:52,510 So a fabulous cloth development kit is an open source software development framework to define cloud 19 00:01:52,510 --> 00:01:57,160 infrastructure, encode and provision it through a cloud formation. 20 00:01:57,190 --> 00:02:04,360 It offers a high level, object oriented abstraction to define a resources imperatively using the power 21 00:02:04,360 --> 00:02:06,040 of modern programming languages. 22 00:02:06,070 --> 00:02:07,510 It is so important. 23 00:02:07,510 --> 00:02:14,980 So using the CBC's library of infrastructure constructs, you can easily encapsulate the best practices 24 00:02:14,980 --> 00:02:20,320 in your infrastructure definition, and also you can share it without worrying about the boilerplate 25 00:02:20,320 --> 00:02:20,920 logic. 26 00:02:21,280 --> 00:02:27,870 By this way, you can also create serverless patterns and implement these patterns as a infrastructure 27 00:02:27,880 --> 00:02:30,070 level using the CDK libraries. 28 00:02:30,670 --> 00:02:37,000 The ADA SDK has first class support for TypeScript, JavaScript, Python, Java and C sharp. 29 00:02:38,860 --> 00:02:45,250 So basically we can also infrastructure is code with a cloud formation. 30 00:02:45,250 --> 00:02:50,460 So even CDK uses the cloud formation at the beginning of the scan. 31 00:02:50,470 --> 00:02:57,490 So while we are using data with CDK, if we have cloud formation, why you why we need to use a CDK. 32 00:02:58,240 --> 00:03:04,090 A CDK converts the code written into supporting programming language to go that formation secret before 33 00:03:04,090 --> 00:03:04,750 the execution. 34 00:03:05,590 --> 00:03:13,660 So that means cloud formation required to scripts, template scripts, but CDK converts to the code 35 00:03:13,660 --> 00:03:17,830 which we are writing the programming language, object oriented language. 36 00:03:17,860 --> 00:03:24,130 And by this way, we can use more powerful and we can develop more powerful infrastructure using the 37 00:03:24,130 --> 00:03:26,320 object oriented programming, language, power. 38 00:03:26,620 --> 00:03:31,660 And of course, only behind all of this you can see the K using the converting these codes to the cloud 39 00:03:31,660 --> 00:03:32,860 formation templates. 40 00:03:33,880 --> 00:03:39,700 So what are the benefits using the CDK instead of rho cloud formation templates? 41 00:03:39,700 --> 00:03:41,830 So let me explain the benefits. 42 00:03:41,890 --> 00:03:48,580 The first benefit is, as we explained before, choosing a programming language of our choice. 43 00:03:49,420 --> 00:03:53,920 We all have a preferred programming language that we are comfortable with. 44 00:03:53,950 --> 00:04:00,010 So ideally, CDK currently supports JavaScript, TypeScript, Python, Java, C, sharp and go programming 45 00:04:00,010 --> 00:04:03,280 language that you can write and develop your infrastructures. 46 00:04:04,750 --> 00:04:10,150 You can pick your preferred programming language and start provisioning your application first sector 47 00:04:10,150 --> 00:04:11,320 with minimum code. 48 00:04:11,380 --> 00:04:18,180 So ADA SDK enables you to model application infrastructure using TypeScript, Python, Java and dot 49 00:04:18,190 --> 00:04:18,700 net. 50 00:04:19,000 --> 00:04:26,500 With CDK developers, you can use existing IDE or testing tools and workflow patterns. 51 00:04:26,500 --> 00:04:30,400 It's like a development application, traditional application development. 52 00:04:30,400 --> 00:04:32,860 You can develop your infrastructure very easily. 53 00:04:33,490 --> 00:04:37,810 The second benefit is it is powered by a cloud formation. 54 00:04:38,230 --> 00:04:44,770 So a double SDK enables you to define your infrastructure with code and provision it through using the 55 00:04:45,250 --> 00:04:46,210 cloud formation. 56 00:04:47,500 --> 00:04:53,560 You can get all the benefits of cloud formation, including the repeatable deployments, easy rollbacks 57 00:04:53,560 --> 00:04:55,180 and drift detection. 58 00:04:55,940 --> 00:05:01,940 One of the main advantages of using the programming language over the JSON or HTML template file is 59 00:05:01,940 --> 00:05:06,710 that we can use programming constructs when we link infrastructure. 60 00:05:07,040 --> 00:05:13,280 For example, you can use if then as logic to select the provisioning infrastructure based on the different 61 00:05:13,280 --> 00:05:14,120 criterias. 62 00:05:14,630 --> 00:05:20,870 You can also use loops to execute a sequence of instructions until a certain condition is met. 63 00:05:20,900 --> 00:05:27,710 These are the really great features when you are using the SDK, developing your infrastructure. 64 00:05:28,850 --> 00:05:35,990 The third benefit is we can say that using autocomplete and inline documentation, another perk of using 65 00:05:35,990 --> 00:05:41,570 programming language is that you get autocomplete and inline documentation while coding the infrastructure. 66 00:05:41,750 --> 00:05:46,640 This saves a lot of time as you don't have to refer to documentation often. 67 00:05:47,120 --> 00:05:53,080 So we will also see the autocomplete and inline documentation when developing our infrastructure with 68 00:05:53,090 --> 00:05:54,670 using a cbdc. 69 00:05:54,770 --> 00:05:58,420 I will show you how we can read documentation and user documentation. 70 00:05:58,430 --> 00:06:00,110 It is very useful. 71 00:06:01,330 --> 00:06:06,050 Another benefit is deploy infrastructure and runtime code together. 72 00:06:06,650 --> 00:06:12,860 A double SDK enables you to reference your runtime code assets in the same project with the same programming 73 00:06:12,860 --> 00:06:13,520 language. 74 00:06:13,550 --> 00:06:20,390 For example, you can include your A Lambda runtime code or Docker container image in your CDK project. 75 00:06:20,690 --> 00:06:27,890 And when you deploy your application, the CDK framework automatically uploads and configures the services 76 00:06:27,890 --> 00:06:29,390 with your runtime assets. 77 00:06:29,780 --> 00:06:36,050 When the CDK deployment is complete, you will have a fully functional application so you don't have 78 00:06:36,050 --> 00:06:39,920 to separate your input sector automation code from your application code. 79 00:06:40,010 --> 00:06:43,520 We already see this when we learn to monitor repo. 80 00:06:43,640 --> 00:06:50,360 We will also follow this principle or CDK infrastructure automation code and our application code will 81 00:06:50,360 --> 00:06:51,470 be the same repository. 82 00:06:51,950 --> 00:06:55,280 CDK links both of these types of code together. 83 00:06:55,370 --> 00:07:02,150 For example, you can provision an S3 bucket with static web hosting enabled and associate the HTML 84 00:07:02,150 --> 00:07:06,890 JavaScript CSS single page of application code in the CDK code itself. 85 00:07:09,240 --> 00:07:12,880 Another benefit is developer friendly command line interface. 86 00:07:13,480 --> 00:07:22,090 So the ADA SDK has CLI and CLI enables you to interact with your CDK applications and enables functionalities 87 00:07:22,090 --> 00:07:28,990 such as synthesizing a C C cloud formation template, showing the difference between the running stack 88 00:07:28,990 --> 00:07:35,680 and proposed change, confirming security related chains prior to deployment and deploying multiple 89 00:07:35,680 --> 00:07:42,700 stacks across multiple environments that are first class, first class command line interface support 90 00:07:42,700 --> 00:07:43,750 in the Cdcc. 91 00:07:43,810 --> 00:07:50,410 We will also see in the upcoming videos we can run Cdcc synthesised CDCC diff for different cdcc deploy. 92 00:07:50,440 --> 00:07:52,480 This kind of commands are very useful.