Files
podman/pkg/api/server/handler_logging.go
Jhon Honce deaf969243 Refacter API server emphasis on logging
* To aid in debugging log API request and response bodies at trace
  level. Events can be correlated using the X-Reference-Id.
* Server now echos X-Reference-Id from client if set, otherwise
  generates an unique id.
* Move logic for X-Reference-Id into middleware
* Change uses of Header.Add() to Set() when setting Content-Type
* Log API operations in Apache format using gorilla middleware
* Port server code to use BaseContext and ConnContext

Fixes #10053

Signed-off-by: Jhon Honce <jhonce@redhat.com>
2021-09-10 15:07:25 -07:00

52 lines
1.2 KiB
Go

package server
import (
"io"
"io/ioutil"
"net/http"
"time"
"github.com/gorilla/mux"
"github.com/sirupsen/logrus"
)
type responseWriter struct {
http.ResponseWriter
}
var apiLogger = &logrus.Logger{
Formatter: &logrus.TextFormatter{
DisableColors: true,
DisableLevelTruncation: true,
FullTimestamp: true,
QuoteEmptyFields: true,
TimestampFormat: time.RFC3339,
},
Level: logrus.TraceLevel,
Out: logrus.StandardLogger().Out,
}
func (l responseWriter) Write(b []byte) (int, error) {
apiLogger.WithFields(logrus.Fields{
"API": "response",
"X-Reference-Id": l.Header().Get("X-Reference-Id"),
}).Trace(string(b))
return l.ResponseWriter.Write(b)
}
func loggingHandler() mux.MiddlewareFunc {
return func(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
annotated := apiLogger.WithFields(logrus.Fields{
"API": "request",
"X-Reference-Id": r.Header.Get("X-Reference-Id"),
})
r.Body = ioutil.NopCloser(
io.TeeReader(r.Body, annotated.WriterLevel(logrus.TraceLevel)))
w = responseWriter{ResponseWriter: w}
h.ServeHTTP(w, r)
})
}
}