15003: Add dispatch-cloud configs to default/template file.

[arvados.git] / lib / controller / handler.go

diff --git a/lib/controller/handler.go b/lib/controller/handler.go
index 25799aae9ea30d3116469e205c77f927c313172a..35734d780c9bf1819c9f7b0875d0903858f95125 100644 (file)
--- a/lib/controller/handler.go
+++ b/lib/controller/handler.go
@@ -5,6 +5,7 @@
 package controller
 
 import (
+       "context"
        "database/sql"
        "errors"
        "net"
@@ -49,6 +50,12 @@ func (h *Handler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
                        req.URL.Path = strings.Replace(req.URL.Path, "//", "/", -1)
                }
        }
+       if h.Cluster.API.RequestTimeout > 0 {
+               ctx, cancel := context.WithDeadline(req.Context(), time.Now().Add(time.Duration(h.Cluster.API.RequestTimeout)))
+               req = req.WithContext(ctx)
+               defer cancel()
+       }
+
        h.handlerStack.ServeHTTP(w, req)
 }
 
@@ -65,26 +72,24 @@ func (h *Handler) setup() {
        mux.Handle("/_health/", &health.Handler{
                Token:  h.Cluster.ManagementToken,
                Prefix: "/_health/",
+               Routes: health.Routes{"ping": func() error { _, err := h.db(&http.Request{}); return err }},
        })
        hs := http.NotFoundHandler()
        hs = prepend(hs, h.proxyRailsAPI)
-       hs = prepend(hs, h.proxyRemoteCluster)
+       hs = h.setupProxyRemoteCluster(hs)
        mux.Handle("/", hs)
        h.handlerStack = mux
 
        sc := *arvados.DefaultSecureClient
-       sc.Timeout = time.Duration(h.Cluster.HTTPRequestTimeout)
        sc.CheckRedirect = neverRedirect
        h.secureClient = &sc
 
        ic := *arvados.InsecureHTTPClient
-       ic.Timeout = time.Duration(h.Cluster.HTTPRequestTimeout)
        ic.CheckRedirect = neverRedirect
        h.insecureClient = &ic
 
        h.proxy = &proxy{
-               Name:           "arvados-controller",
-               RequestTimeout: time.Duration(h.Cluster.HTTPRequestTimeout),
+               Name: "arvados-controller",
        }
 }
 
@@ -121,11 +126,10 @@ func prepend(next http.Handler, middleware middlewareFunc) http.Handler {
        })
 }
 
-func (h *Handler) proxyRailsAPI(w http.ResponseWriter, req *http.Request, next http.Handler) {
+func (h *Handler) localClusterRequest(req *http.Request) (*http.Response, error) {
        urlOut, insecure, err := findRailsAPI(h.Cluster, h.NodeProfile)
        if err != nil {
-               httpserver.Error(w, err.Error(), http.StatusInternalServerError)
-               return
+               return nil, err
        }
        urlOut = &url.URL{
                Scheme:   urlOut.Scheme,
@@ -138,7 +142,15 @@ func (h *Handler) proxyRailsAPI(w http.ResponseWriter, req *http.Request, next h
        if insecure {
                client = h.insecureClient
        }
-       h.proxy.Do(w, req, urlOut, client)
+       return h.proxy.Do(req, urlOut, client)
+}
+
+func (h *Handler) proxyRailsAPI(w http.ResponseWriter, req *http.Request, next http.Handler) {
+       resp, err := h.localClusterRequest(req)
+       n, err := h.proxy.ForwardResponse(w, resp, err)
+       if err != nil {
+               httpserver.Logger(req).WithError(err).WithField("bytesCopied", n).Error("error copying response body")
+       }
 }
 
 // For now, findRailsAPI always uses the rails API running on this