//Diagnostics shows a bunch of app engine's information for the app/project
//useful for figuring out which version of an app is serving
func Diagnostics(w http.ResponseWriter, r *http.Request) {
c := appengine.NewContext(r)
out := map[string]interface{}{
"App ID": appengine.AppID(c),
"Instance ID": appengine.InstanceID(),
"Default Version Hostname": appengine.DefaultVersionHostname(c),
"Version ID": appengine.VersionID(c),
"Datacenter": appengine.Datacenter(c),
"Module Name": appengine.ModuleName(c),
"Server Software": appengine.ServerSoftware(),
}
templates.Load(w, "diagnostics", out)
return
}
// Status gathers a quick overview of the system state
// and dumps it in JSON format.
func Status(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {
return
}
ctx := appengine.NewContext(r)
m := new(runtime.MemStats)
runtime.ReadMemStats(m)
s := &status{
initTime,
appengineStatus{
appengine.InstanceID(),
appengine.AppID(ctx),
appengine.Datacenter(ctx),
appengine.DefaultVersionHostname(ctx),
appengine.ModuleName(ctx),
appengine.IsDevAppServer(),
},
runtimeStatus{
runtime.GOMAXPROCS(0),
runtime.GOARCH,
runtime.GOOS,
runtime.GOROOT(),
runtime.NumCPU(),
runtime.NumCgoCall(),
runtime.Version(),
*m,
},
os.Environ(),
}
b, err := json.Marshal(s)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json; encoding=utf-8")
w.Write(b)
}
func (l *GCLLogger) Log(res *responseLogger, r *http.Request) (err error) {
if res.Status() == http.StatusOK {
context := appengine.NewContext(r)
client, err := google.DefaultClient(appengine.NewContext(r),
logging.CloudPlatformScope)
if err != nil {
return err
}
service, err := logging.New(client)
if err != nil {
return err
}
projectId := appengine.AppID(context)
labels := map[string]string{
"compute.googleapis.com/resource_type": "instance",
"compute.googleapis.com/resource_id": appengine.InstanceID(),
}
meta := &logging.LogEntryMetadata{
Severity: l.Severity,
ProjectId: projectId,
ServiceName: "compute.googleapis.com",
Zone: appengine.Datacenter(context),
}
entry := &logging.LogEntry{Metadata: meta, TextPayload: string(res.Body())}
e := &logging.WriteLogEntriesRequest{
CommonLabels: labels,
Entries: []*logging.LogEntry{entry},
}
_, err = service.Projects.Logs.Entries.Write(projectId, l.Target, e).Do()
}
return
}
func (g giImpl) Datacenter() string {
return appengine.Datacenter(g.aeCtx)
}