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resource_provisioner.go
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resource_provisioner.go
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package terraform
// ResourceProvisioner is an interface that must be implemented by any
// resource provisioner: the thing that initializes resources in
// a Terraform configuration.
type ResourceProvisioner interface {
// Validate is called once at the beginning with the raw
// configuration (no interpolation done) and can return a list of warnings
// and/or errors.
//
// This is called once per resource.
//
// This should not assume any of the values in the resource configuration
// are valid since it is possible they have to be interpolated still.
// The primary use case of this call is to check that the required keys
// are set and that the general structure is correct.
Validate(*ResourceConfig) ([]string, []error)
// Apply runs the provisioner on a specific resource and returns the new
// resource state along with an error. Instead of a diff, the ResourceConfig
// is provided since provisioners only run after a resource has been
// newly created.
Apply(UIOutput, *InstanceState, *ResourceConfig) error
}
// ResourceProvisionerCloser is an interface that provisioners that can close
// connections that aren't needed anymore must implement.
type ResourceProvisionerCloser interface {
Close() error
}
// ResourceProvisionerFactory is a function type that creates a new instance
// of a resource provisioner.
type ResourceProvisionerFactory func() (ResourceProvisioner, error)