AWS CodeDeploy vs Kargo

AWS CodeDeploy automates application releases across development, test, and production environments. It deploys to Amazon EC2, AWS Fargate, AWS Lambda, and on-premises instances using in-place, canary, or blue/green methods. Rolling updates and deployment health tracking help limit disruption; when too many updates fail, CodeDeploy can stop a deployment and restore a previous revision. Teams can launch and monitor releases through the AWS Management Console, CLI, SDKs, or APIs. AWS CodePipeline and some AWS partners offer prebuilt CI/CD connections. For EC2, CodeDeploy works with Auto Scaling and can update an instance before it joins an Elastic Load Balancing load balancer. Amazon SNS can send deployment-event notifications by SMS or email. The service uses a file- and command-based installation model with an AppSpec configuration file and is platform and language agnostic. EC2 deployments have no additional CodeDeploy charge; on-premises updates cost $0.02 per instance update, with no minimum fees or upfront commitments. On-premises instances must connect to public AWS service endpoints. The free plan is listed at free.

Kargo is an open-source continuous promotion orchestration layer for moving applications through deployment stages in Kubernetes environments. It complements Argo CD, with customizable pipelines for advancing changes from one environment to another and a view of changes across environments. Kargo tracks updates from Git artifacts, container images, Helm charts, and other artifacts. Verification checks can run at stages before an artifact advances downstream. Documented promotion steps include Git operations, Helm, Kustomize, Argo CD, and HTTP requests to external services. Kargo Enterprise additionally lists Jira, ServiceNow, JFrog Evidence, GitHub Actions, and Slack or email notifications, and can automatically return a stage to its last stable artifact when verification fails. The open-source distribution uses the Apache 2.0 license. A basic installation requires a Kubernetes cluster, and the documentation says Kargo works best paired with Argo CD. Its default configuration is suitable only for trying it in a local cluster that is not internet-facing. The open-source distribution has no time- or severity-bound backport guarantee for security fixes. Akuity Pro, including one Kargo instance, is listed at $495 a month; Enterprise pricing is available by contacting sales.