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‫Okay, so now let's get into CodeBuild

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‫to see how we can use CodeBuild not to build this time

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‫but to test our code in our CodePipeline.

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‫So what do we want to test?

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‫Well, if you look at our Beanstalk environment,

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‫we really, really like that congratulations message.

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‫I think we should have it,

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‫and we want to test for this not ever leaving the screen,

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‫so we never want congratulations to go away,

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‫this is what we want to test for.

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‫So for this, let's go to CodeBuild and get started.

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‫We're going to create our first build project

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‫and I will call it MyBuildProjects,

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‫and the description is going to be

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‫testing for congratulations.

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‫So the idea is that we're going to have a script

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‫that will test whether or not this congratulation word

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‫are going to appear in our webpage.

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‫So I'm going to scroll down

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‫and for the source provider,

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‫I'm going to choose CodeCommits

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‫and the repository going to be my-nodejs-app.

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‫So we can see here in the primary sources,

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‫we can have S3, GitHub, Bitbucket,

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‫and GitHub Enterprise for now,

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‫and so as you can see, CodeBuild can be used

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‫to test many different projects.

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‫So we'll use my-nodejs-app,

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‫we'll choose a branch,

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‫and the branch is going to be the main branch,

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‫and then we don't specify a commit ID,

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‫that means we want to test the main branch at its latest.

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‫Okay, that's great,

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‫then I will scroll down and under environments,

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‫I will choose a managed image or a custom image.

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‫So the idea is that CodeBuild uses Docker in the backend

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‫to create a testing environment,

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‫and so we can use the managed images by AWS

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‫to have the ready to use images

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‫when we want to test for specific programming languages,

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‫but if you want you to have your own programming environment

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‫and your own testing environments,

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‫you could provide your own custom image.

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‫In terms of operating system,

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‫it's recommended to use Ubuntu,

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‫as you can see in this message,

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‫so we use Ubuntu, and for the runtime,

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‫we'll be using standard,

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‫and the image, I'm going to use codebuild/standard:5.0,

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‫but the rule of thumb is that if you see this video

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‫and there's been new releases for this image, 6.0, 7.0,

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‫please use the latest and it will make sure

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‫that the code will work, okay?

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‫Then the image version is

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‫always used the latest image for this runtime version,

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‫we'll use Linux,

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‫and then we'll create a new service role

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‫that will be used by this CodeBuild project.

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‫The important thing you can see,

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‫an interesting thing you can see is that

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‫there are some additional configurations to this,

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‫for example, we have timeouts where we can set

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‫how long we want the default timeouts,

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‫they must between five minutes and eight hours,

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‫so this is good if you know

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‫that the build can not last too long,

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‫you should then set this to something very, very low.

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‫The VPC is something very interesting,

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‫you can select the VPC, and the CodeBuild project

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‫will run the VPC for the the build from within the VPC,

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‫and the idea is that you can access

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‫your internal resources such as RDS databases and so on.

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‫You can set how big you want your compute power to be

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‫for this testing image, we will choose the lowest.

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‫We can specify environment variables

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‫that can come from different places,

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‫the Parameter store, Secrets Manager,

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‫or just be Plaintext,

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‫and we can specify a file system.

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‫Now, the most important thing from an exam perspective

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‫is that now we have the buildspec configuration

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‫and we need to use a buildspec file

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‫to specify how we want to build our project in CodeBuild,

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‫and as you can see, we have a buildspec name as optional,

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‫and that means that by default,

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‫CodeBuild will look for a file named buildspec.yml

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‫in the source code root directory.

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‫So the idea is really, you want to remember

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‫that buildspec.yml is the name of the file

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‫and it's placed at the source code root directory.

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‫Okay, so we won't specify anything here,

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‫we'll just use a buildspec file.

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‫I will scroll down,

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‫and then for Artifacts is do you want to create artifacts,

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‫for example, pushing a Docker image to Amazon ECR,

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‫no, and we could push it to Amazon S3 as well

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‫if you wanted to, but I will choose no artifacts.

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‫And then for logging, we can have CloudWatch

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‫and Amazon S3 and then we're good to go,

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‫and when you're ready, just click on create build project.

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‫And now let's run a build,

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‫so I click on Start Build,

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‫and then say, okay,

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‫I'm going to start a new build,

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‫the source looks correct,

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‫and so on, click on Start Build,

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‫and let's see what happens here.

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‫So the status is in progress,

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‫so let's just wait a little bit.

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‫Okay, so as we can see, this build has failed.

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‫How surprising, so what's happening?

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‫We have the entire log right here

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‫and we can look at the phase details as well,

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‫but the error comes from DOWNLOAD_SOURCE,

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‫which failed because YAML_FILE_ERROR:

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‫YAML file does not exist,

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‫and that's indeed true

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‫because this is looking for a buildspec.yml

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‫in my code commit repository,

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‫but currently there's none.

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‫So what we can do,

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‫and what we'll do in the very next lecture

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‫is go to that CodeCommit repository in here

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‫and add the missing buildspec.yml,

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‫so for that, I will see you in the next lecture.