/
image.go
49 lines (40 loc) · 1.17 KB
/
image.go
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package dockerClient
import (
"io"
"io/ioutil"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
)
type DockerImage interface {
PullImage(image string, pull bool) (err error)
IsImagePulled(image string) (status bool, err error)
RemoveImage(image string) (err error)
Images() ([]types.ImageSummary, error)
}
func (c *CLI) Images() ([]types.ImageSummary, error) {
return c.Client.ImageList(c.Ctx, types.ImageListOptions{})
}
func (c *CLI) PullImage(image string, pull bool) (err error) {
if exists, _ := c.IsImagePulled(image); !pull && exists {
return nil
}
resp, err := c.Client.ImagePull(c.Ctx, image, types.ImagePullOptions{})
if err != nil {
return err
}
defer resp.Close()
// Required to wait for container pull to finish
io.Copy(ioutil.Discard, resp)
return err
}
func (c *CLI) IsImagePulled(image string) (status bool, err error) {
_, _, err = c.Client.ImageInspectWithRaw(c.Ctx, image)
return !client.IsErrImageNotFound(err), err
}
func (c *CLI) RemoveImage(image string) (err error) {
if exists, _ := c.IsImagePulled(image); !exists {
return nil
}
_, err = c.Client.ImageRemove(c.Ctx, image, types.ImageRemoveOptions{})
return err
}