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moby--moby/client/plugin_upgrade.go
Brian Goff 03c6949739 Add docker plugin upgrade
This allows a plugin to be upgraded without requiring to
uninstall/reinstall a plugin.
Since plugin resources (e.g. volumes) are tied to a plugin ID, this is
important to ensure resources aren't lost.

The plugin must be disabled while upgrading (errors out if enabled).
This does not add any convenience flags for automatically
disabling/re-enabling the plugin during before/after upgrade.

Since an upgrade may change requested permissions, the user is required
to accept permissions just like `docker plugin install`.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
2017-02-03 16:21:12 -05:00

37 lines
1.1 KiB
Go

package client
import (
"fmt"
"io"
"net/url"
"github.com/docker/distribution/reference"
"github.com/docker/docker/api/types"
"github.com/pkg/errors"
"golang.org/x/net/context"
)
// PluginUpgrade upgrades a plugin
func (cli *Client) PluginUpgrade(ctx context.Context, name string, options types.PluginInstallOptions) (rc io.ReadCloser, err error) {
query := url.Values{}
if _, err := reference.ParseNamed(options.RemoteRef); err != nil {
return nil, errors.Wrap(err, "invalid remote reference")
}
query.Set("remote", options.RemoteRef)
privileges, err := cli.checkPluginPermissions(ctx, query, options)
if err != nil {
return nil, err
}
resp, err := cli.tryPluginUpgrade(ctx, query, privileges, name, options.RegistryAuth)
if err != nil {
return nil, err
}
return resp.body, nil
}
func (cli *Client) tryPluginUpgrade(ctx context.Context, query url.Values, privileges types.PluginPrivileges, name, registryAuth string) (serverResponse, error) {
headers := map[string][]string{"X-Registry-Auth": {registryAuth}}
return cli.post(ctx, fmt.Sprintf("/plugins/%s/upgrade", name), query, privileges, headers)
}