aws codepipline - creating s3 bucket using cloudformation

 In this setup we are going to create a simple code pipeline that gets code from codecommit and then build it with codebuild. Finally it uses codepipeline to create/update a s3 via cloudformation. 

Here are the steps:

1. check in your code 

2. create a codebuild to get your app build - yes although it is just a simple command

3. create a codepipeline that combine everything

Source

 You can get the source from here.

https://github.com/mitzenjeremywoo/simple-cloudformation-s3-codepipeline

Check this into your codecommit. The build file is ready, so we can just setup codebuild as well.

Setting up code build 

1. Create a build project call it cfbuild

2. Source provider - AWS code commut 

3. Repository - your repository, Branch - master, 

4. Operating system - Amazon Linux

5. Buildspec - Choose Use Buildspec 

6. Artifact - Amazon S3, Bucket name - choose your bucket name and name of the folder - configure it as cfbuild

7. Artifact packaging - zip 

Things to note here - Although artifact is zip, AWS codepipeline will be able to read s3-out.yaml. file.

Setting up AWS codepipeline

Source section

1. For the name of the pipeline, give it mytest 

2. Click next, and then under Source select Action Provider - choose AWS CodeCommit. Choose your repository name, Branch - master

3. Output - SourceArtifact

Build section 

1. For action provider - choose AWS CodeBuild

2. Input Artifact - Source Artifact

3. Project name - choose cfbuild - (the build name we configure above)

4. Output artifact - confirm it is BuildArtifact

Deploy section 

1. Provide a name. 

2. Action Provider - AWS Cloudformation (Not AWS Cloudformtion Stack Set)

3. Input artifact - BuildArtifact

4. Action mode - Create or replace a changeset

5. Stack name - give it myteststack - don't worry about the error - the stack name does not exist. 

6. Change set name - give it myteststack-changeset

7. Template -- Choose Buildartifact. Filename - s3-out.yaml - this is the output of our build process configured above. 

8. Capabilities - Capability_IAM 

9. Role name:  You need to create a role and give it access to S3. Then come back to codepipeline to complete your build.

Some of the configuration is shown below:-

Also note the template file path: BuildArtifact::s3-out.yaml

Run the codebuild pipeline. 

You will hit build error saying that it does not have access to S3 bucket. Please add the necessary permission for this role.