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Add monitoring instrumentation for the remaining HTTP handlers in the apiserver.

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This commit is contained in:
Alex Robinson
2015-02-10 23:19:49 +00:00
parent 535502ead6
commit ab62b689a5
3 changed files with 42 additions and 6 deletions
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18
pkg/apiserver/proxy.go
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@@ -82,16 +82,25 @@ type ProxyHandler struct {
}
func (r *ProxyHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
var verb string
var apiResource string
var httpCode int
reqStart := time.Now()
defer func() { monitor("proxy", verb, apiResource, httpCode, reqStart) }()
requestInfo, err := r.apiRequestInfoResolver.GetAPIRequestInfo(req)
if err != nil {
notFound(w, req)
httpCode = http.StatusNotFound
return
}
verb = requestInfo.Verb
namespace, resource, parts := requestInfo.Namespace, requestInfo.Resource, requestInfo.Parts
ctx := api.WithNamespace(api.NewContext(), namespace)
if len(parts) < 2 {
notFound(w, req)
httpCode = http.StatusNotFound
return
}
id := parts[1]
@@ -110,13 +119,15 @@ func (r *ProxyHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
if !ok {
httplog.LogOf(req, w).Addf("'%v' has no storage object", resource)
notFound(w, req)
httpCode = http.StatusNotFound
return
}
apiResource = resource
redirector, ok := storage.(Redirector)
if !ok {
httplog.LogOf(req, w).Addf("'%v' is not a redirector", resource)
errorJSON(errors.NewMethodNotSupported(resource, "proxy"), r.codec, w)
httpCode = errorJSON(errors.NewMethodNotSupported(resource, "proxy"), r.codec, w)
return
}
@@ -125,11 +136,13 @@ func (r *ProxyHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
httplog.LogOf(req, w).Addf("Error getting ResourceLocation: %v", err)
status := errToAPIStatus(err)
writeJSON(status.Code, r.codec, status, w)
httpCode = status.Code
return
}
if location == "" {
httplog.LogOf(req, w).Addf("ResourceLocation for %v returned ''", id)
notFound(w, req)
httpCode = http.StatusNotFound
return
}
@@ -137,6 +150,7 @@ func (r *ProxyHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
if err != nil {
status := errToAPIStatus(err)
writeJSON(status.Code, r.codec, status, w)
httpCode = status.Code
return
}
if destURL.Scheme == "" {
@@ -151,8 +165,10 @@ func (r *ProxyHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
status := errToAPIStatus(err)
writeJSON(status.Code, r.codec, status, w)
notFound(w, req)
httpCode = status.Code
return
}
httpCode = http.StatusOK
newReq.Header = req.Header
proxy := httputil.NewSingleHostReverseProxy(&url.URL{Scheme: "http", Host: destURL.Host})