github.com/mika/distribution@v2.2.2-0.20160108133430-a75790e3d8e0+incompatible/health/api/api.go (about)

     1  package api
     2  
     3  import (
     4  	"errors"
     5  	"net/http"
     6  
     7  	"github.com/docker/distribution/health"
     8  )
     9  
    10  var (
    11  	updater = health.NewStatusUpdater()
    12  )
    13  
    14  // DownHandler registers a manual_http_status that always returns an Error
    15  func DownHandler(w http.ResponseWriter, r *http.Request) {
    16  	if r.Method == "POST" {
    17  		updater.Update(errors.New("Manual Check"))
    18  	} else {
    19  		w.WriteHeader(http.StatusNotFound)
    20  	}
    21  }
    22  
    23  // UpHandler registers a manual_http_status that always returns nil
    24  func UpHandler(w http.ResponseWriter, r *http.Request) {
    25  	if r.Method == "POST" {
    26  		updater.Update(nil)
    27  	} else {
    28  		w.WriteHeader(http.StatusNotFound)
    29  	}
    30  }
    31  
    32  // init sets up the two endpoints to bring the service up and down
    33  func init() {
    34  	health.Register("manual_http_status", updater)
    35  	http.HandleFunc("/debug/health/down", DownHandler)
    36  	http.HandleFunc("/debug/health/up", UpHandler)
    37  }