Spacelift is a commercial orchestration platform for OpenTofu, Terraform, Pulumi and other IaC tools, sold on annual subscriptions. Pages here cover replacing it with self-hosted Terrakube or Atlantis.
Spacelift against self-hosted Terrakube for teams running OpenTofu or Terraform: stacks versus workspaces, private workers versus Terrakube executors, policy with OPA, state management, identity, and what Spacelift covers beyond Terraform that Terrakube does not.
For teams that mostly need plan and apply on pull requests: Spacelift's managed runs and state against Atlantis, which runs in your own infrastructure, comments plans on pull requests, locks directories and needs a separate state backend.
Moving stacks from Spacelift to Terrakube: exporting managed state with a task or external state access, recreating workspaces, variables, contexts and VCS connections, translating Rego policies, swapping private workers for Terrakube executors and cutting over stack by stack.
Cost of ownership by component: Spacelift's annual subscriptions, from Starter+ at $20,000 a year to quoted Enterprise tiers priced around workers, against Terrakube's free software, the servers, database and executors it needs, migration effort and who operates it.
Getting state and configuration out of Spacelift before you leave: running terraform state pull in a task and pushing it to your own bucket, enabling external state access, capturing stack settings, contexts and policies, and checking that each workspace plans clean in its new home.
For teams that need IaC orchestration inside their own environment: self-hosted Spacelift, offered only on Enterprise+ and installed into your AWS account with an AWS License Manager license, against Terrakube on any Kubernetes or Docker host, compared on licensing, portability and support.
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