Cron Trigger CLI

CodeBuild build triggers are simply CloudWatch event rules.

When creating build triggers through the console, what is actually being created is a CloudWatch event rule. You can create CloudWatch event rules using the CLI, for example:

aws events put-rule \
    --name run-codebuild \
    --schedule-expression 'rate(1 hour)' \
    --role-arn arn:aws:iam::000000000000:role/service-role/AWS_Events_Invoke_CodeBuild_124052220
                            
aws events put-targets \
    --rule run-codebuild \
    --targets '
[
    {
        "Id": "some_id",
        "Arn": "arn:aws:codebuild:us-east-1:000000000000:project/some-codebuild-project",
        "RoleArn": "arn:aws:iam::000000000000:role/service-role/codebuild-some-codebuild-project-service-role"
    }
]
'

If the CW event rule is associated with a CodeBuild project, that event rule will show up under the project's build triggers.