func (ms *metadataService) FetchUserdata() ([]byte, error) {
client := pkg.NewHttpClient()
if data, err := client.GetRetry(Ec2UserdataUrl); err == nil {
return data, err
} else if _, ok := err.(pkg.ErrTimeout); ok {
return data, err
}
if data, err := client.GetRetry(OpenstackUserdataUrl); err == nil {
return data, err
} else if _, ok := err.(pkg.ErrNotFound); ok {
return []byte{}, nil
} else {
return data, err
}
}
func fetchUserKeys(url string) ([]string, error) {
client := pkg.NewHttpClient()
data, err := client.GetRetry(url)
if err != nil {
return nil, err
}
var userKeys []UserKey
err = json.Unmarshal(data, &userKeys)
if err != nil {
return nil, err
}
keys := make([]string, 0)
for _, key := range userKeys {
keys = append(keys, key.Key)
}
return keys, err
}
func (c *procCmdline) FetchUserdata() ([]byte, error) {
contents, err := ioutil.ReadFile(c.Location)
if err != nil {
return nil, err
}
cmdline := strings.TrimSpace(string(contents))
url, err := findCloudConfigURL(cmdline)
if err != nil {
return nil, err
}
client := pkg.NewHttpClient()
cfg, err := client.GetRetry(url)
if err != nil {
return nil, err
}
return cfg, nil
}
func NewDatasource(root string) *metadataService {
if !strings.HasSuffix(root, "/") {
root += "/"
}
return &metadataService{root, pkg.NewHttpClient()}
}
func urlDownload(url string) ([]byte, error) {
client := pkg.NewHttpClient()
return client.GetRetry(url)
}
func (ms *metadataService) FetchMetadata() ([]byte, error) {
return fetchMetadata(pkg.NewHttpClient())
}
func (ms *metadataService) IsAvailable() bool {
client := pkg.NewHttpClient()
_, err := client.Get(BaseUrl)
return (err == nil)
}
func NewDatasource(root, apiVersion, userdataPath, metadataPath string) MetadataService {
if !strings.HasSuffix(root, "/") {
root += "/"
}
return MetadataService{root, pkg.NewHttpClient(), apiVersion, userdataPath, metadataPath}
}
func (f *remoteFile) FetchUserdata() ([]byte, error) {
client := pkg.NewHttpClient()
return client.GetRetry(f.url)
}
func (f *remoteFile) IsAvailable() bool {
client := pkg.NewHttpClient()
_, err := client.Get(f.url)
return (err == nil)
}
func (ms *metadataService) Fetch() ([]byte, error) {
client := pkg.NewHttpClient()
return client.Get(ms.url)
}