Example #1
0
// Apply performs a create or update depending on the diff, and calls
// the proper function on the matching Resource.
func (m *Map) Apply(
	s *terraform.ResourceState,
	d *terraform.ResourceDiff,
	meta interface{}) (*terraform.ResourceState, error) {
	r, ok := m.Mapping[s.Type]
	if !ok {
		return nil, fmt.Errorf("Unknown resource type: %s", s.Type)
	}

	if d.Destroy || d.RequiresNew() {
		if s.ID != "" {
			// Destroy the resource if it is created
			err := r.Destroy(s, meta)
			if err != nil {
				return s, err
			}

			s.ID = ""
		}

		// If we're only destroying, and not creating, then return now.
		// Otherwise, we continue so that we can create a new resource.
		if !d.RequiresNew() {
			return nil, nil
		}
	}

	var result *terraform.ResourceState
	var err error
	if s.ID == "" {
		result, err = r.Create(s, d, meta)
	} else {
		if r.Update == nil {
			return s, fmt.Errorf(
				"Resource type '%s' doesn't support update",
				s.Type)
		}

		result, err = r.Update(s, d, meta)
	}
	if result != nil {
		if result.Attributes == nil {
			result.Attributes = make(map[string]string)
		}

		result.Attributes["id"] = result.ID
	}

	return result, err
}
Example #2
0
// State returns the new ResourceState after the diff and any Set
// calls.
func (d *ResourceData) State() *terraform.ResourceState {
	var result terraform.ResourceState
	result.ID = d.Id()

	// If we have no ID, then this resource doesn't exist and we just
	// return nil.
	if result.ID == "" {
		return nil
	}

	result.Attributes = d.stateObject("", d.schema)
	result.ConnInfo = d.ConnInfo()
	result.Dependencies = d.Dependencies()

	if v := d.Id(); v != "" {
		result.Attributes["id"] = d.Id()
	}

	return &result
}