140 lines
3.4 KiB
Go
140 lines
3.4 KiB
Go
// +build experimental
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package plugin
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import (
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"fmt"
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"net/http"
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"os"
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"path/filepath"
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/pkg/archive"
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"github.com/docker/docker/pkg/stringid"
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"github.com/docker/docker/plugin/distribution"
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"github.com/docker/docker/reference"
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"github.com/docker/engine-api/types"
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)
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// Disable deactivates a plugin, which implies that they cannot be used by containers.
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func (pm *Manager) Disable(name string) error {
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p, err := pm.get(name)
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if err != nil {
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return err
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}
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return pm.disable(p)
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}
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// Enable activates a plugin, which implies that they are ready to be used by containers.
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func (pm *Manager) Enable(name string) error {
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p, err := pm.get(name)
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if err != nil {
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return err
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}
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return pm.enable(p)
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}
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// Inspect examines a plugin manifest
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func (pm *Manager) Inspect(name string) (tp types.Plugin, err error) {
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p, err := pm.get(name)
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if err != nil {
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return tp, err
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}
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return p.P, nil
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}
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// Pull pulls a plugin and enables it.
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func (pm *Manager) Pull(name string, metaHeader http.Header, authConfig *types.AuthConfig) (types.PluginPrivileges, error) {
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ref, err := reference.ParseNamed(name)
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if err != nil {
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logrus.Debugf("error in reference.ParseNamed: %v", err)
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return nil, err
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}
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name = ref.String()
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if p, _ := pm.get(name); p != nil {
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logrus.Debugf("plugin already exists")
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return nil, fmt.Errorf("%s exists", name)
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}
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pluginID := stringid.GenerateNonCryptoID()
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if err := os.MkdirAll(filepath.Join(pm.libRoot, pluginID), 0755); err != nil {
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logrus.Debugf("error in MkdirAll: %v", err)
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return nil, err
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}
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pd, err := distribution.Pull(name, pm.registryService, metaHeader, authConfig)
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if err != nil {
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logrus.Debugf("error in distribution.Pull(): %v", err)
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return nil, err
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}
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if err := distribution.WritePullData(pd, filepath.Join(pm.libRoot, pluginID), true); err != nil {
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logrus.Debugf("error in distribution.WritePullData(): %v", err)
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return nil, err
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}
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p := pm.newPlugin(ref, pluginID)
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if err := pm.initPlugin(p); err != nil {
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return nil, err
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}
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pm.Lock()
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pm.plugins[pluginID] = p
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pm.nameToID[name] = pluginID
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pm.save()
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pm.Unlock()
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return computePrivileges(&p.P.Manifest), nil
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}
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// List displays the list of plugins and associated metadata.
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func (pm *Manager) List() ([]types.Plugin, error) {
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out := make([]types.Plugin, 0, len(pm.plugins))
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for _, p := range pm.plugins {
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out = append(out, p.P)
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}
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return out, nil
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}
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// Push pushes a plugin to the store.
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func (pm *Manager) Push(name string, metaHeader http.Header, authConfig *types.AuthConfig) error {
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p, err := pm.get(name)
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if err != nil {
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return err
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}
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dest := filepath.Join(pm.libRoot, p.P.ID)
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config, err := os.Open(filepath.Join(dest, "manifest.json"))
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if err != nil {
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return err
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}
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defer config.Close()
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rootfs, err := archive.Tar(filepath.Join(dest, "rootfs"), archive.Gzip)
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if err != nil {
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return err
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}
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_, err = distribution.Push(name, pm.registryService, metaHeader, authConfig, config, rootfs)
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// XXX: Ignore returning digest for now.
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// Since digest needs to be written to the ProgressWriter.
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return err
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}
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// Remove deletes plugin's root directory.
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func (pm *Manager) Remove(name string) error {
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p, err := pm.get(name)
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if err != nil {
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return err
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}
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return pm.remove(p)
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}
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// Set sets plugin args
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func (pm *Manager) Set(name string, args []string) error {
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p, err := pm.get(name)
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if err != nil {
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return err
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}
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return pm.set(p, args)
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}
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