Digitalocean provider (#171)

* Implement Digitalocean provider
* Vendor digitalocean lib
* Enable SRV for Digitalocean and fix the tests
* Test cname etc. records pointing to the same domain

vendor/github.com/digitalocean/godo/images.go

@@ -0,0 +1,199 @@
+package godo
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/digitalocean/godo/context"
+)
+
+const imageBasePath = "v2/images"
+
+// ImagesService is an interface for interfacing with the images
+// endpoints of the DigitalOcean API
+// See: https://developers.digitalocean.com/documentation/v2#images
+type ImagesService interface {
+	List(context.Context, *ListOptions) ([]Image, *Response, error)
+	ListDistribution(ctx context.Context, opt *ListOptions) ([]Image, *Response, error)
+	ListApplication(ctx context.Context, opt *ListOptions) ([]Image, *Response, error)
+	ListUser(ctx context.Context, opt *ListOptions) ([]Image, *Response, error)
+	GetByID(context.Context, int) (*Image, *Response, error)
+	GetBySlug(context.Context, string) (*Image, *Response, error)
+	Update(context.Context, int, *ImageUpdateRequest) (*Image, *Response, error)
+	Delete(context.Context, int) (*Response, error)
+}
+
+// ImagesServiceOp handles communication with the image related methods of the
+// DigitalOcean API.
+type ImagesServiceOp struct {
+	client *Client
+}
+
+var _ ImagesService = &ImagesServiceOp{}
+
+// Image represents a DigitalOcean Image
+type Image struct {
+	ID           int      `json:"id,float64,omitempty"`
+	Name         string   `json:"name,omitempty"`
+	Type         string   `json:"type,omitempty"`
+	Distribution string   `json:"distribution,omitempty"`
+	Slug         string   `json:"slug,omitempty"`
+	Public       bool     `json:"public,omitempty"`
+	Regions      []string `json:"regions,omitempty"`
+	MinDiskSize  int      `json:"min_disk_size,omitempty"`
+	Created      string   `json:"created_at,omitempty"`
+}
+
+// ImageUpdateRequest represents a request to update an image.
+type ImageUpdateRequest struct {
+	Name string `json:"name"`
+}
+
+type imageRoot struct {
+	Image *Image
+}
+
+type imagesRoot struct {
+	Images []Image
+	Links  *Links `json:"links"`
+}
+
+type listImageOptions struct {
+	Private bool   `url:"private,omitempty"`
+	Type    string `url:"type,omitempty"`
+}
+
+func (i Image) String() string {
+	return Stringify(i)
+}
+
+// List lists all the images available.
+func (s *ImagesServiceOp) List(ctx context.Context, opt *ListOptions) ([]Image, *Response, error) {
+	return s.list(ctx, opt, nil)
+}
+
+// ListDistribution lists all the distribution images.
+func (s *ImagesServiceOp) ListDistribution(ctx context.Context, opt *ListOptions) ([]Image, *Response, error) {
+	listOpt := listImageOptions{Type: "distribution"}
+	return s.list(ctx, opt, &listOpt)
+}
+
+// ListApplication lists all the application images.
+func (s *ImagesServiceOp) ListApplication(ctx context.Context, opt *ListOptions) ([]Image, *Response, error) {
+	listOpt := listImageOptions{Type: "application"}
+	return s.list(ctx, opt, &listOpt)
+}
+
+// ListUser lists all the user images.
+func (s *ImagesServiceOp) ListUser(ctx context.Context, opt *ListOptions) ([]Image, *Response, error) {
+	listOpt := listImageOptions{Private: true}
+	return s.list(ctx, opt, &listOpt)
+}
+
+// GetByID retrieves an image by id.
+func (s *ImagesServiceOp) GetByID(ctx context.Context, imageID int) (*Image, *Response, error) {
+	if imageID < 1 {
+		return nil, nil, NewArgError("imageID", "cannot be less than 1")
+	}
+
+	return s.get(ctx, interface{}(imageID))
+}
+
+// GetBySlug retrieves an image by slug.
+func (s *ImagesServiceOp) GetBySlug(ctx context.Context, slug string) (*Image, *Response, error) {
+	if len(slug) < 1 {
+		return nil, nil, NewArgError("slug", "cannot be blank")
+	}
+
+	return s.get(ctx, interface{}(slug))
+}
+
+// Update an image name.
+func (s *ImagesServiceOp) Update(ctx context.Context, imageID int, updateRequest *ImageUpdateRequest) (*Image, *Response, error) {
+	if imageID < 1 {
+		return nil, nil, NewArgError("imageID", "cannot be less than 1")
+	}
+
+	if updateRequest == nil {
+		return nil, nil, NewArgError("updateRequest", "cannot be nil")
+	}
+
+	path := fmt.Sprintf("%s/%d", imageBasePath, imageID)
+	req, err := s.client.NewRequest(ctx, "PUT", path, updateRequest)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	root := new(imageRoot)
+	resp, err := s.client.Do(ctx, req, root)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return root.Image, resp, err
+}
+
+// Delete an image.
+func (s *ImagesServiceOp) Delete(ctx context.Context, imageID int) (*Response, error) {
+	if imageID < 1 {
+		return nil, NewArgError("imageID", "cannot be less than 1")
+	}
+
+	path := fmt.Sprintf("%s/%d", imageBasePath, imageID)
+
+	req, err := s.client.NewRequest(ctx, http.MethodDelete, path, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := s.client.Do(ctx, req, nil)
+
+	return resp, err
+}
+
+// Helper method for getting an individual image
+func (s *ImagesServiceOp) get(ctx context.Context, ID interface{}) (*Image, *Response, error) {
+	path := fmt.Sprintf("%s/%v", imageBasePath, ID)
+
+	req, err := s.client.NewRequest(ctx, http.MethodGet, path, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	root := new(imageRoot)
+	resp, err := s.client.Do(ctx, req, root)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return root.Image, resp, err
+}
+
+// Helper method for listing images
+func (s *ImagesServiceOp) list(ctx context.Context, opt *ListOptions, listOpt *listImageOptions) ([]Image, *Response, error) {
+	path := imageBasePath
+	path, err := addOptions(path, opt)
+	if err != nil {
+		return nil, nil, err
+	}
+	path, err = addOptions(path, listOpt)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	req, err := s.client.NewRequest(ctx, http.MethodGet, path, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	root := new(imagesRoot)
+	resp, err := s.client.Do(ctx, req, root)
+	if err != nil {
+		return nil, resp, err
+	}
+	if l := root.Links; l != nil {
+		resp.Links = l
+	}
+
+	return root.Images, resp, err
+}