CodeBuild

Developer Associate

Fully managed build service, which compiles source code, runs simple tests, and can generate build artifacts for deployment
To build a docker image for use in ECS, there are a number of different commands you’ll need to run
- To build the image, use
```
docker build -t <<dockerimagename>> .
```
- After the build completes, tag the image so you can push it to the registry.
```
docker tag <<dockerimagename>>:latest <<registry/dockerimagename:latest>>
```
- Then push teh build to the registry using “docker push «registry/dockerimagename:latest»”
Buildspec.yml file explains to CodeBuild exactly how we want it to build our Docker images / whatever it’s building
- variables/paramters
- phases: hooks you can tie in commands with
- pre_build, build, post_build
- artifacts:
You can also define commands directly into the CodeBuild configuration and forego the buildspec.yml file entirely (know this for exam!!)
You also need to specify a Service Role for CodeBuild which gives it the ability to call into other AWS dependent services
If your build fails, check the build logs within the CodeBuild console, or within CloudWatch
If you get an error stating “The bucket you are attempting to access must be addressed using the specified endpoint”, it means the bucket is in a different region than the CodeBuild build project.