README
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go-docker-pull
The app makes it possible to download a docker-image without using docker
!!! Not working with v1 registry
Use
> git clone https://github.com/myback/go-docker-pull.git
> cd go-docker-pull
> go build -o bin/docker-pull -ldfalgs="-s -w" docker-pull/docker-pull.go
> bin/docker-pull -h
Usage:
docker-pull image [image ...] [flags]
Flags:
-a, --arch string CPU architecture platform image (default "amd64")
-h, --help help for docker-pull
-d, --only-download Only download layers
-o, --os string OS platform image (default "linux")
-p, --password string Registry password
-s, --save-cache Do not delete the temp folder
-u, --user string Registry user
>
> bin/docker-pull alpine:3.10
3.10: Pulling from library/alpine
21c83c524219: Pull complete
Digest: sha256:a143f3ba578f79e2c7b3022c488e6e12a35836cd4a6eb9e363d7f3a07d848590
> docker pull alpine:3.10
> docker save alpine:3.10 -o alpine_3.10.tar
> sha256sum *.tar
d59b494721c87e7536ad6b68d9066b82b55b9697d89239adb56a6ba2878a042d alpine_3.10.tar
d59b494721c87e7536ad6b68d9066b82b55b9697d89239adb56a6ba2878a042d library_alpine_3.10.tar
Fetch multiple images
> bin/docker-pull alpine:3.10 ubuntu:18.04 bitnami/redis:5.0
Fetch image from private registry
> bin/docker-pull --user username --password 'P@$$w0rd' private-registry.mydomain.com/my_image:1.2.3
Documentation
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Index ¶
- Variables
- func FileHashEqual(filename, hash string) (bool, error)
- func ParseRequestedImage(s string) *requestedImage
- func SaveToJson(file string, v interface{}) error
- type Client
- func (c *Client) GetBlob(tag digest.Digest, mediaTypeLayer string, resume int64) (*http.Response, error)
- func (c *Client) GetLayer(dir string, diffId digest.Digest, layerDesc distribution.Descriptor, ...) error
- func (c *Client) GetManifest(tag string) (*schema2.Manifest, string, error)
- func (c *Client) GetManifestList() (*manifestlist.ManifestList, error)
- func (c *Client) NewGetRequest(url string) (*http.Request, error)
- func (c *Client) SetCredentials(login, password string)
- type RegistryClient
- type WWWAuthenticate
Constants ¶
This section is empty.
Variables ¶
View Source
var ( ErrImageNotFound = fmt.Errorf("pull access denied, repository does not exist or may require login and password") ErrEmptyManifestList = fmt.Errorf("empty manifest list") )
Functions ¶
func FileHashEqual ¶
func ParseRequestedImage ¶
func ParseRequestedImage(s string) *requestedImage
func SaveToJson ¶
Types ¶
type Client ¶
type Client struct {
*http.Client
Image *requestedImage
UA string
// contains filtered or unexported fields
}
func (*Client) GetLayer ¶
func (c *Client) GetLayer(dir string, diffId digest.Digest, layerDesc distribution.Descriptor, legacyImg image.V1Image, created time.Time) error
func (*Client) GetManifest ¶
func (*Client) GetManifestList ¶
func (c *Client) GetManifestList() (*manifestlist.ManifestList, error)
func (*Client) SetCredentials ¶
type RegistryClient ¶
func (*RegistryClient) Pull ¶
func (rc *RegistryClient) Pull(imageReq *requestedImage) error
type WWWAuthenticate ¶
type WWWAuthenticate struct {
Realm, Service, Scope string
}
func WWWAuthenticateParse ¶
func WWWAuthenticateParse(s string) (out WWWAuthenticate)
Source Files
Directories
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