EnsureApp makes sure that the installer has the application being installed available locally If there's no installer tarball (and hence, no application), then it replicates the metadata of the application and its dependencies from remote Ops Center (for which remote Ops Center credentials should have been provided).

FSMSpec returns a function that returns an appropriate phase executor based on the provided params.

NewClusterFactory returns a factory for creating cluster requests.

NewFSMFactory returns a new state machine factory.

NewProcessConfig creates a gravity process config from installer config.

RegisterAgentLoop makes a request to an Ops Center periodically to register this agent process in an install group.

Config defines the installer configuration.

PlanBuilder extends the open-source plan builder.

Planner builds an install operation plan.

ProcessConfig defines the configuration for the wizard process.

RegisterAgentParams combines parameters needed for registering agent with an Ops Center.