84 lines
2 KiB
Go
84 lines
2 KiB
Go
package main
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import (
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"fmt"
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"github.com/traefik/traefik/v2/pkg/config/static"
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"github.com/traefik/traefik/v2/pkg/plugins"
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)
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const outputDir = "./plugins-storage/"
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func createPluginBuilder(staticConfiguration *static.Configuration) (*plugins.Builder, error) {
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client, plgs, localPlgs, err := initPlugins(staticConfiguration)
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if err != nil {
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return nil, err
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}
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return plugins.NewBuilder(client, plgs, localPlgs)
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}
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func initPlugins(staticCfg *static.Configuration) (*plugins.Client, map[string]plugins.Descriptor, map[string]plugins.LocalDescriptor, error) {
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err := checkUniquePluginNames(staticCfg.Experimental)
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if err != nil {
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return nil, nil, nil, err
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}
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var client *plugins.Client
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plgs := map[string]plugins.Descriptor{}
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if hasPlugins(staticCfg) {
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opts := plugins.ClientOptions{
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Output: outputDir,
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}
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var err error
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client, err = plugins.NewClient(opts)
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if err != nil {
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return nil, nil, nil, fmt.Errorf("unable to create plugins client: %w", err)
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}
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err = plugins.SetupRemotePlugins(client, staticCfg.Experimental.Plugins)
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if err != nil {
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return nil, nil, nil, fmt.Errorf("unable to set up plugins environment: %w", err)
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}
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plgs = staticCfg.Experimental.Plugins
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}
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localPlgs := map[string]plugins.LocalDescriptor{}
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if hasLocalPlugins(staticCfg) {
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err := plugins.SetupLocalPlugins(staticCfg.Experimental.LocalPlugins)
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if err != nil {
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return nil, nil, nil, err
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}
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localPlgs = staticCfg.Experimental.LocalPlugins
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}
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return client, plgs, localPlgs, nil
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}
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func checkUniquePluginNames(e *static.Experimental) error {
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if e == nil {
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return nil
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}
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for s := range e.LocalPlugins {
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if _, ok := e.Plugins[s]; ok {
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return fmt.Errorf("the plugin's name %q must be unique", s)
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}
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}
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return nil
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}
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func hasPlugins(staticCfg *static.Configuration) bool {
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return staticCfg.Experimental != nil && len(staticCfg.Experimental.Plugins) > 0
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}
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func hasLocalPlugins(staticCfg *static.Configuration) bool {
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return staticCfg.Experimental != nil && len(staticCfg.Experimental.LocalPlugins) > 0
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}
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