Spacelift supports locking the stack for one person's exclusive use. This can be very handy if a delicate operation is taking place that could easily be affected by someone else making changes in the meantime. Every stack writer can lock the stack unless it's already locked. The owner of the lock is the only one who can trigger runs and tasks for the entire duration of the lock. Locks never expire, and only its creator and Spacelift admins can release it. Note that while a stack is locked, auto deploy is disabled to prevent accidental deployments.