Documentation
¶
Overview ¶
Package cache provides functionality for working with an on-disk cache of the ECS Agent image.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Downloader ¶
type Downloader struct {
// contains filtered or unexported fields
}
Downloader is resposible for cache operations relating to downloading the agent
func NewDownloader ¶
func NewDownloader() *Downloader
NewDownloader returns a Downloader with default dependencies
func (*Downloader) DownloadAgent ¶
func (d *Downloader) DownloadAgent() error
DownloadAgent downloads a fresh copy of the Agent and performs an integrity check on the downloaded image
func (*Downloader) IsAgentCached ¶
func (d *Downloader) IsAgentCached() bool
IsAgentCached returns true if there is a cached copy of the Agent present and a cache state file is not empty (no validation is performed on the tarball or cache state file contents)
func (*Downloader) LoadCachedAgent ¶
func (d *Downloader) LoadCachedAgent() (io.ReadCloser, error)
LoadCachedAgent returns an io.ReadCloser of the Agent from the cache
func (*Downloader) LoadDesiredAgent ¶
func (d *Downloader) LoadDesiredAgent() (io.ReadCloser, error)
LoadDesiredAgent returns an io.ReadCloser of the Agent indicated by the desiredImageLocatorFile (/var/cache/ecs/desired-image). The desiredImageLocatorFile must contain as the beginning of the file the name of the file containing the desired image (interpreted as a basename) and ending in a newline. Only the first line is read, with the rest of the file reserved for future use.
func (*Downloader) RecordCachedAgent ¶
func (d *Downloader) RecordCachedAgent() error
Source Files