Managed Delivery is an initiative with two key goals.
Provide native means for Spinnaker users to declaratively manage software delivery.
With a declarative model, users describe the desired end-state of a deployed application. Spinnaker continually calculates how this desired state maps to cloud resources. When desired state diverges from actual cloud state, Spinnaker figures out how to safely bring the deployed state in-line with the desired.
This is in stark contrast to the imperative pipeline model, which requires users to define every step of their delivery flow. Pipelines remain a powerful first class feature of Spinnaker that will offer greater flexibility than Managed Delivery for the foreseeable future. However, we feel the declarative approach is preferable for most delivery flows. Good pipeline design requires a depth of Spinnaker and cloud knowledge, while system failures impacting pipeline execution may leave environments in a transitional state without an automatic path back to normalcy. A declarative model solves both issues.
Provide Spinnaker Operators with powerful new means to raise the level of operational abstraction offered to their users.
If you are interested in contributing, the Managed Delivery initiative is under the auspices of the Spinnaker-as-Code SIG