Initial glance client

glance/glance.go

+// The glance package provides a way to access the OpenStack Image Service APIs.
+// See http://docs.openstack.org/api/openstack-image-service/2.0/content/.
+package glance
+
+import (
+        "fmt"
+        "launchpad.net/goose/client"
+        goosehttp "launchpad.net/goose/http"
+        "net/http"
+)
+
+const (
+        apiImages       = "/images"
+        apiImagesDetail = "/images/detail"
+)
+
+// Client provides a means to access the OpenStack Image Service.
+type Client struct {
+        client client.Client
+}
+
+func New(client client.Client) *Client {
+        return &Client{client}
+}
+
+type Link struct {
+        Href string
+        Rel  string
+        Type string
+}
+
+type Image struct {
+        Id    string
+        Name  string
+        Links []Link
+}
+
+// ListImages lists IDs, names, and links for available images.
+func (c *Client) ListImages() ([]Image, error) {
+        var resp struct {
+                Images []Image
+        }
+        requestData := goosehttp.RequestData{RespValue: &resp, ExpectedStatus: []int{http.StatusOK}}
+        err := c.client.SendRequest(client.GET, "compute", apiImages, &requestData,
+                "failed to get list of images")
+        return resp.Images, err
+}
+
+type ImageMetadata struct {
+        Architecture string
+        State        string      `json:"image_state"`
+        Location     string      `json:"image_location"`
+        KernelId     interface{} `json:"kernel_id"`
+        ProjectId    interface{} `json:"project_id"`
+        RAMDiskId    interface{} `json:"ramdisk_id"`
+        OwnerId      interface{} `json:"owner_id"`
+}
+
+type ImageDetail struct {
+        Id          string
+        Name        string
+        Created     string
+        Updated     string
+        Progress    int
+        Status      string
+        MinimumRAM  int `json:"minRam"`
+        MinimumDisk int `json:"minDisk"`
+        Links       []Link
+        Metadata    ImageMetadata
+}
+
+// ListImageDetails lists all details for available images.
+func (c *Client) ListImagesDetail() ([]ImageDetail, error) {
+        var resp struct {
+                Images []ImageDetail
+        }
+        requestData := goosehttp.RequestData{RespValue: &resp}
+        err := c.client.SendRequest(client.GET, "compute", apiImagesDetail, &requestData,
+                "failed to get list of images details")
+        return resp.Images, err
+}
+
+// GetImageDetail lists details of the specified image.
+func (c *Client) GetImageDetail(imageId string) (ImageDetail, error) {
+        var resp struct {
+                Image ImageDetail
+        }
+        url := fmt.Sprintf("%s/%s", apiImages, imageId)
+        requestData := goosehttp.RequestData{RespValue: &resp}
+        err := c.client.SendRequest(client.GET, "compute", url, &requestData,
+                "failed to get details for imageId=%s", imageId)
+        return resp.Image, err
+}