Single service comparison

AWS CodeBuild is a standalone, independently billed service whose build projects use a buildspec.yml, IAM execution roles, VPC and security-group controls, and S3/CodeArtifact I/O. CodeArts Build is not sold standalone; it is a sub-service inside the CodeArts suite (Repos, Check, Build, Pipeline, Deploy, Artifact) consumed through a seat-plus-resource package, with build tasks authored in CodeArts YAML and tightly coupled to CodeArts pipeline and repository objects rather than AWS IAM principals.

CodeBuild elastically provisions fresh container instances per run and charges per build-minute, with concurrency effectively limited by account service quotas. CodeArts Build concurrency and execution minutes are gated by the purchased package tier (for example 1, 5, 10, or 20 concurrent build slots) and must be raised by buying concurrency and duration extensions that are tenant-shared, so capacity and cost behavior differ materially and require upfront sizing instead of pure pay-per-run.

Integrations diverge by ecosystem. CodeBuild natively pairs with CodePipeline, CodeCommit, IAM, KMS, Secrets Manager, VPC endpoints, and EventBridge for arbitrary triggering. CodeArts Build integrates primarily within the CodeArts toolchain (Repos, Check, Pipeline, Deploy, Artifact) and Huawei IAM; AWS-native security primitives, cross-account artifact flows, and batch/vpc build features have no direct equivalent and must be re-architected rather than re-pointed.

Inventory every CodeBuild project: buildspec steps, runtime/image, environment variables, IAM role permissions, secrets, S3 and CodeArtifact inputs/outputs, and CodePipeline or EventBridge triggers. Map each project to a CodeArts Build task and select a CodeArts package tier whose concurrency and execution-minute quotas cover peak usage, adding concurrency and duration extensions as needed; expect an accompanying CodeArts Pipeline object to reproduce orchestration and triggers.

Re-author each buildspec into CodeArts Build YAML tasks and steps, mirroring install, pre-build, build, and post-build phases. Recreate environment variables and credentials in CodeArts parameter contexts, source from CodeArts Repos or a supported external Git connector, and relocate artifact outputs to CodeArts Artifact repositories. Re-introduce caching, unit tests, and code checks using CodeArts Check, since there is no automated buildspec conversion path.

Run shadow builds in CodeArts Build against the same source revisions and compare artifact checksums, build durations, and test outcomes with the AWS baseline. Tune build images, cache strategies, and concurrency to meet target performance, then validate downstream deployment and release gates in CodeArts Pipeline. Confirm Huawei IAM permissions and secret access for every task before promoting tenants to production traffic.

No one-click migration exists; build definitions, triggers, and integrations must be manually re-platformed, and AWS-specific features such as batch builds, VPC-only builds, and deep IAM/KMS coupling require architectural rework. The cost model shifts from AWS per-build-minute plus data transfer to CodeArts seat/package plus concurrency, execution-minute, storage, and artifact-traffic extensions; recompute TCO using peak concurrency, build frequency, artifact retention, and cross-region traffic before cutover.