terraform-provider-greenhost/digitalocean/datasource_digitalocean_ima...

159 lines
3.7 KiB
Go

package digitalocean
import (
"context"
"fmt"
"strconv"
"github.com/digitalocean/godo"
"github.com/hashicorp/terraform-plugin-sdk/helper/schema"
"github.com/hashicorp/terraform-plugin-sdk/helper/validation"
)
func dataSourceDigitalOceanImage() *schema.Resource {
return &schema.Resource{
Read: dataSourceDigitalOceanImageRead,
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
Optional: true,
Description: "name of the image",
ValidateFunc: validation.NoZeroValues,
ConflictsWith: []string{"slug"},
},
"slug": {
Type: schema.TypeString,
Optional: true,
Description: "slug of the image",
ValidateFunc: validation.NoZeroValues,
},
// computed attributes
"image": {
Type: schema.TypeString,
Computed: true,
Description: "slug or id of the image",
},
"distribution": {
Type: schema.TypeString,
Computed: true,
Description: "distribution of the OS of the image",
},
"private": {
Type: schema.TypeBool,
Computed: true,
Description: "Is the image private or non-private",
},
"min_disk_size": {
Type: schema.TypeInt,
Computed: true,
Description: "minimum disk size required by the image",
},
"regions": {
Type: schema.TypeSet,
Computed: true,
Description: "list of the regions that the image is available in",
Elem: &schema.Schema{Type: schema.TypeString},
},
"type": {
Type: schema.TypeString,
Computed: true,
Description: "type of the image",
},
},
}
}
func dataSourceDigitalOceanImageRead(d *schema.ResourceData, meta interface{}) error {
client := meta.(*CombinedConfig).godoClient()
name, hasName := d.GetOk("name")
slug, hasSlug := d.GetOk("slug")
if !hasName && !hasSlug {
return fmt.Errorf("One of `name` or `slug` must be assigned")
}
var image *godo.Image
if hasName {
opts := &godo.ListOptions{
Page: 1,
PerPage: 200,
}
imageList := []godo.Image{}
for {
images, resp, err := client.Images.ListUser(context.Background(), opts)
if err != nil {
return fmt.Errorf("Error retrieving images: %s", err)
}
for _, image := range images {
imageList = append(imageList, image)
}
if resp.Links == nil || resp.Links.IsLastPage() {
break
}
page, err := resp.Links.CurrentPage()
if err != nil {
return fmt.Errorf("Error retrieving images: %s", err)
}
opts.Page = page + 1
}
var err error
image, err = findImageByName(imageList, name.(string))
if err != nil {
return err
}
} else {
var (
err error
resp *godo.Response
)
image, resp, err = client.Images.GetBySlug(context.Background(), slug.(string))
if err != nil {
if resp != nil && resp.StatusCode == 404 {
return fmt.Errorf("image not found: %s", err)
}
return fmt.Errorf("Error retrieving image: %s", err)
}
}
d.SetId(strconv.Itoa(image.ID))
d.Set("name", image.Name)
d.Set("slug", image.Slug)
d.Set("image", strconv.Itoa(image.ID))
d.Set("distribution", image.Distribution)
d.Set("min_disk_size", image.MinDiskSize)
d.Set("private", !image.Public)
d.Set("regions", image.Regions)
d.Set("type", image.Type)
return nil
}
func findImageByName(images []godo.Image, name string) (*godo.Image, error) {
results := make([]godo.Image, 0)
for _, v := range images {
if v.Name == name {
results = append(results, v)
}
}
if len(results) == 1 {
return &results[0], nil
}
if len(results) == 0 {
return nil, fmt.Errorf("no user image found with name %s", name)
}
return nil, fmt.Errorf("too many user images found with name %s (found %d, expected 1)", name, len(results))
}