58 lines
1.2 KiB
Go
58 lines
1.2 KiB
Go
package metadata
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import (
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"strings"
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"github.com/coreos/coreos-cloudinit/pkg"
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)
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type MetadataService struct {
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Root string
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Client pkg.Getter
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ApiVersion string
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UserdataPath string
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MetadataPath string
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}
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func NewDatasource(root, apiVersion, userdataPath, metadataPath string) MetadataService {
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if !strings.HasSuffix(root, "/") {
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root += "/"
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}
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return MetadataService{root, pkg.NewHttpClient(), apiVersion, userdataPath, metadataPath}
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}
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func (ms MetadataService) IsAvailable() bool {
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_, err := ms.Client.Get(ms.Root + ms.ApiVersion)
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return (err == nil)
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}
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func (ms MetadataService) AvailabilityChanges() bool {
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return true
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}
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func (ms MetadataService) ConfigRoot() string {
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return ms.Root
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}
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func (ms MetadataService) FetchUserdata() ([]byte, error) {
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return ms.FetchData(ms.UserdataUrl())
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}
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func (ms MetadataService) FetchData(url string) ([]byte, error) {
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if data, err := ms.Client.GetRetry(url); err == nil {
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return data, err
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} else if _, ok := err.(pkg.ErrNotFound); ok {
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return []byte{}, nil
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} else {
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return data, err
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}
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}
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func (ms MetadataService) MetadataUrl() string {
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return (ms.Root + ms.MetadataPath)
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}
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func (ms MetadataService) UserdataUrl() string {
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return (ms.Root + ms.UserdataPath)
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}
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