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fix: traceability of the middleware plugins
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parent
7792d197e6
commit
47faae25d7
@ -357,7 +357,7 @@ func (b *Builder) buildConstructor(ctx context.Context, middlewareName string) (
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}
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middleware = func(next http.Handler) (http.Handler, error) {
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return plug(ctx, next)
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return newTraceablePlugin(ctx, middlewareName, plug, next)
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}
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}
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@ -1,10 +1,14 @@
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package middleware
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import (
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"context"
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"errors"
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"net/http"
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"github.com/opentracing/opentracing-go/ext"
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"github.com/traefik/traefik/v2/pkg/config/dynamic"
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"github.com/traefik/traefik/v2/pkg/plugins"
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"github.com/traefik/traefik/v2/pkg/tracing"
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)
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// PluginsBuilder the plugin's builder interface.
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@ -31,3 +35,25 @@ func findPluginConfig(rawConfig map[string]dynamic.PluginConf) (string, map[stri
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return pluginType, rawPluginConfig, nil
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}
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type traceablePlugin struct {
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name string
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h http.Handler
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}
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func newTraceablePlugin(ctx context.Context, name string, plug plugins.Constructor, next http.Handler) (*traceablePlugin, error) {
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h, err := plug(ctx, next)
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if err != nil {
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return nil, err
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}
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return &traceablePlugin{name: name, h: h}, nil
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}
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func (s *traceablePlugin) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
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s.h.ServeHTTP(rw, req)
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}
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func (s *traceablePlugin) GetTracingInformation() (string, ext.SpanKindEnum) {
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return s.name, tracing.SpanKindNoneEnum
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}
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