NewProcfileFromBinding creates a Procfile by reading Procfile from bindings if it exists.

NewProcfileFromEnvironment creates a Procfile by reading environment variable BP_PROCFILE_DEFAULT_PROCESS if it exists.

NewProcfileFromEnvironmentOrPathOrBinding attempts to create a merged Procfile from environment and/or given path and bindings.

NewProcfileFromPath creates a Procfile by reading Procfile from path if it exists.

BindingType is used to resolve a binding containing a Procfile.

Procfile is a map between a logical name and a command.