Cleanup after plugin install.

During error cases, we dont cleanup correctly. This commit takes care
of removing the plugin, if there are errors after the pull passed. It
also shuts down the plugin, if there are errors after the plugin in the
enable path.

Signed-off-by: Anusha Ragunathan <anusha@docker.com>

client/plugin_install.go

@@ -10,7 +10,7 @@ import (
 )
 
 // PluginInstall installs a plugin
-func (cli *Client) PluginInstall(ctx context.Context, name string, options types.PluginInstallOptions) error {
+func (cli *Client) PluginInstall(ctx context.Context, name string, options types.PluginInstallOptions) (err error) {
 	// FIXME(vdemeester) name is a ref, we might want to parse/validate it here.
 	query := url.Values{}
 	query.Set("name", name)
@@ -27,6 +27,14 @@ func (cli *Client) PluginInstall(ctx context.Context, name string, options types
 		ensureReaderClosed(resp)
 		return err
 	}
+
+	defer func() {
+		if err != nil {
+			delResp, _ := cli.delete(ctx, "/plugins/"+name, nil, nil)
+			ensureReaderClosed(delResp)
+		}
+	}()
+
 	var privileges types.PluginPrivileges
 	if err := json.NewDecoder(resp.body).Decode(&privileges); err != nil {
 		ensureReaderClosed(resp)
@@ -40,8 +48,6 @@ func (cli *Client) PluginInstall(ctx context.Context, name string, options types
 			return err
 		}
 		if !accept {
-			resp, _ := cli.delete(ctx, "/plugins/"+name, nil, nil)
-			ensureReaderClosed(resp)
 			return pluginPermissionDenied{name}
 		}
 	}

plugin/manager_linux.go

@@ -36,6 +36,7 @@ func (pm *Manager) enable(p *v2.Plugin, force bool) error {
 		p.Lock()
 		p.Restart = false
 		p.Unlock()
+		shutdownPlugin(p, pm.containerdClient)
 		return err
 	}