Implementing Defense-in-Depth for AWS CodeBuild Pipelines
🔒 This guide consolidates practical recommendations for securing AWS CodeBuild CI/CD pipelines, emphasizing webhook configuration, trust boundaries, and least-privilege access. It warns against automatic pull request builds from untrusted contributors and prescribes push-based, branch-based, and contributor-filtered webhook patterns, plus staged rollout using Infrastructure as Code. Additional safeguards include scoped GitHub tokens, per-build IAM roles, isolated build environments, CloudTrail logging, and manual approval gates for sensitive deployments.