AWS CloudFormation vs Canonical MAAS

AWS CloudFormation models, provisions, and manages related AWS and third-party resources as infrastructure as code. YAML or JSON templates define AWS resources and their properties. StackSets deploy a common set of resources across multiple AWS accounts and Regions; Change Sets preview proposed stack updates, including possible deletion or replacement, and Drift Detection tracks changes made outside the service. For authoring, AWS CDK supports TypeScript, Python, Java, and .NET, while AWS SAM offers shorthand YAML for serverless resources that is converted during deployment. The CloudFormation Registry supports third-party resources and modules, and stacks can be updated from remote Git repositories. The service is available through API, Linux, macOS, web, and Windows, and manages state. CloudFormation itself has a free plan, with no additional charge for AWS and Alexa resource providers, but created AWS resources are billed at their standard rates. Third-party provider and custom hook operations may also incur charges. Access can be managed with IAM, and CloudTrail logs API calls.

Canonical MAAS is an open source platform for provisioning physical servers as centrally managed cloud resources. It automates server discovery, inventory, commissioning, deployment, and decommissioning, and lets operators manage nodes through a web interface, command line, or API. Hardware discovery uses PXE boot and supports IPMI-enabled machines, as well as subnets, VLANs, and switch fabrics. MAAS integrates with Terraform, Juju, and Ansible for infrastructure automation. It can configure networking and storage, run hardware tests, and manage LXD and KVM virtual machines. Listed images include Ubuntu, CentOS, Windows, and RHEL; images can be synchronized or served from an onsite mirror for offline use. Canonical describes MAAS for private cloud with OpenStack, server automation, and bare-metal Kubernetes. A free self-support plan covers all machines but excludes HA support, RBAC, Knowledge Base, a Sev 1 response SLA, phone support, and ticket support. Paid plans start at $30 a year per managed machine. Ubuntu Pro is required for MAAS controllers; Canonical says it provides security patching and enterprise support for controllers and Ubuntu machines.