mirror of
https://github.com/versity/versitygw.git
synced 2026-08-16 20:26:16 +00:00
78 lines
1.9 KiB
Go
78 lines
1.9 KiB
Go
// Copyright 2025 Versity Software
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// This file is licensed under the Apache License, Version 2.0
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// (the "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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package gwcli
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import (
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"errors"
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"fmt"
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"plugin"
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"github.com/urfave/cli/v2"
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"github.com/versity/versitygw/plugins"
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)
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// PluginCommand returns the "plugin" subcommand, common to all versitygw
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// binaries.
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func PluginCommand() *cli.Command {
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return &cli.Command{
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Name: "plugin",
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Usage: "load a backend from a plugin",
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Description: "Runs a s3 gateway and redirects the requests to the backend defined in the plugin",
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Action: runPluginBackend,
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Flags: []cli.Flag{
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&cli.StringFlag{
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Name: "config",
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Usage: "location of the plugin config file",
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Aliases: []string{"c"},
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EnvVars: []string{"VGW_PLUGIN_CONFIG"},
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},
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},
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}
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}
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func runPluginBackend(ctx *cli.Context) error {
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if ctx.NArg() == 0 {
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return fmt.Errorf("no plugin file provided to be loaded")
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}
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pluginPath := ctx.Args().Get(0)
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config := ctx.String("config")
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p, err := plugin.Open(pluginPath)
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if err != nil {
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return err
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}
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backendSymbol, err := p.Lookup("Backend")
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if err != nil {
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return err
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}
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backendPluginPtr, ok := backendSymbol.(*plugins.BackendPlugin)
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if !ok {
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return errors.New("plugin is not of type *plugins.BackendPlugin")
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}
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if backendPluginPtr == nil {
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return errors.New("variable Backend is nil")
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}
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be, err := (*backendPluginPtr).New(config)
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if err != nil {
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return err
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}
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return RunGateway(ctx.Context, be)
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}
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