AWS Codebuild supports Bitbucket now !!!
AWS Codebuild was earlier supporting Amazon S3, AWS Codecommit, Github and now Bitbucket repo support as well is made available !!
Many organizations using and/or holding repositories in Bitbucket can now be content with this feature as there is no more work around designs or support and maintenance systems as a layer or workflow, in order to run builds from AWS Native services for repositories under Bitbucket