Re-vendor queue-worker publisher for reconnect

- re-vendor queue-worker for publisher via 0.6.0 - bump queue-worker version to 0.6.0 in docker-compose.yml for AMD64 - use new naming for NATS of nats -> NATS in variables where required - add default reconnect of 60 times, 2 seconds apart. Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>
2025-06-18 12:06:37 +00:00 · 2019-01-29 15:04:00 +00:00
parent e63150ef70
commit b4a550327d
33 changed files with 1379 additions and 223 deletions
--- a/docker-compose.yml
+++ b/docker-compose.yml
@ -92,7 +92,7 @@ services:
                    - 'node.platform.os == linux'

    queue-worker:
-        image: openfaas/queue-worker:0.5.4
+        image: openfaas/queue-worker:0.6.0
        networks:
            - functions
        environment:
--- a/gateway/Gopkg.lock
+++ b/gateway/Gopkg.lock
@ -3,163 +3,128 @@

 [[projects]]
  branch = "master"
-  digest = "1:0c5485088ce274fac2e931c1b979f2619345097b39d91af3239977114adf0320"
  name = "github.com/beorn7/perks"
  packages = ["quantile"]
-  pruneopts = ""
  revision = "4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9"

 [[projects]]
-  digest = "1:a9e4ff75555e4500e409dc87c1d708b090bb8dd77f889bbf266773f3dc23af70"
  name = "github.com/docker/distribution"
  packages = ["uuid"]
-  pruneopts = ""
  revision = "48294d928ced5dd9b378f7fd7c6f5da3ff3f2c89"
  version = "v2.6.2"

 [[projects]]
-  digest = "1:70a80170917a15e1ff02faab5f9e716e945e0676e86599ba144d38f96e30c3bf"
  name = "github.com/gogo/protobuf"
  packages = [
    "gogoproto",
    "proto",
-    "protoc-gen-gogo/descriptor",
+    "protoc-gen-gogo/descriptor"
  ]
-  pruneopts = ""
  revision = "342cbe0a04158f6dcb03ca0079991a51a4248c02"
  version = "v0.5"

 [[projects]]
  branch = "master"
-  digest = "1:3b760d3b93f994df8eb1d9ebfad17d3e9e37edcb7f7efaa15b427c0d7a64f4e4"
  name = "github.com/golang/protobuf"
  packages = ["proto"]
-  pruneopts = ""
  revision = "1e59b77b52bf8e4b449a57e6f79f21226d571845"

 [[projects]]
-  digest = "1:20ed7daa9b3b38b6d1d39b48ab3fd31122be5419461470d0c28de3e121c93ecf"
  name = "github.com/gorilla/context"
  packages = ["."]
-  pruneopts = ""
  revision = "1ea25387ff6f684839d82767c1733ff4d4d15d0a"
  version = "v1.1"

 [[projects]]
-  digest = "1:c2c8666b4836c81a1d247bdf21c6a6fc1ab586538ab56f74437c2e0df5c375e1"
  name = "github.com/gorilla/mux"
  packages = ["."]
-  pruneopts = ""
  revision = "e3702bed27f0d39777b0b37b664b6280e8ef8fbf"
  version = "v1.6.2"

 [[projects]]
-  digest = "1:4c23ced97a470b17d9ffd788310502a077b9c1f60221a85563e49696276b4147"
  name = "github.com/matttproud/golang_protobuf_extensions"
  packages = ["pbutil"]
-  pruneopts = ""
  revision = "3247c84500bff8d9fb6d579d800f20b3e091582c"
  version = "v1.0.0"

 [[projects]]
-  digest = "1:665af347df4c5d1ae4c3eacd0754f5337a301f6a3f2444c9993b996605c8c02b"
  name = "github.com/nats-io/go-nats"
  packages = [
    ".",
    "encoders/builtin",
-    "util",
+    "util"
  ]
-  pruneopts = ""
  revision = "062418ea1c2181f52dc0f954f6204370519a868b"
  version = "v1.5.0"

 [[projects]]
-  digest = "1:ca0ffe35a7afa99d614845251f508505188d4117b87d368ee2f4b84c85f3fd29"
  name = "github.com/nats-io/go-nats-streaming"
  packages = [
    ".",
-    "pb",
+    "pb"
  ]
-  pruneopts = ""
  revision = "e15a53f85e4932540600a16b56f6c4f65f58176f"
  version = "v0.4.0"

 [[projects]]
-  digest = "1:be61e8224b84064109eaba8157cbb4bbe6ca12443e182b6624fdfa1c0dcf53d9"
  name = "github.com/nats-io/nuid"
  packages = ["."]
-  pruneopts = ""
  revision = "289cccf02c178dc782430d534e3c1f5b72af807f"
  version = "v1.0.0"

 [[projects]]
-  digest = "1:3eb611e5a4c84bb93879f9704b2fdc0ea9b29e59f465b3b8b2af382a747ef86f"
  name = "github.com/openfaas/faas-provider"
  packages = ["auth"]
-  pruneopts = ""
-  revision = "9ce928bc82cbb2642e6d534f93a7904116179e6c"
-  version = "0.7.0"
+  revision = "220324e98f5db5aa61f02d1ab13f03e91310796c"
+  version = "0.8.1"

 [[projects]]
-  digest = "1:26136842b63206aa4f8d20730edcdf88bd0e89f81df51b199b8baf9b9ed288bc"
  name = "github.com/openfaas/nats-queue-worker"
-  packages = ["handler"]
-  pruneopts = ""
-  revision = "15287c9b2af293cee0c545ccc014a68e1f0a4424"
-  version = "0.4.7"
+  packages = [
+    "handler",
+    "nats"
+  ]
+  revision = "1d731056d1729865034b4598f44031eab7f76adb"
+  version = "0.6.0"

 [[projects]]
-  digest = "1:6f218995d6a74636cfcab45ce03005371e682b4b9bee0e5eb0ccfd83ef85364f"
  name = "github.com/prometheus/client_golang"
  packages = [
    "prometheus",
    "prometheus/internal",
+    "prometheus/promhttp"
  ]
-  pruneopts = ""
  revision = "505eaef017263e299324067d40ca2c48f6a2cf50"
  version = "v0.9.2"

 [[projects]]
  branch = "master"
-  digest = "1:60aca47f4eeeb972f1b9da7e7db51dee15ff6c59f7b401c1588b8e6771ba15ef"
  name = "github.com/prometheus/client_model"
  packages = ["go"]
-  pruneopts = ""
  revision = "99fa1f4be8e564e8a6b613da7fa6f46c9edafc6c"

 [[projects]]
  branch = "master"
-  digest = "1:e3aa5178be4fc4ae8cdb37d11c02f7490c00450a9f419e6aa84d02d3b47e90d2"
  name = "github.com/prometheus/common"
  packages = [
    "expfmt",
    "internal/bitbucket.org/ww/goautoneg",
-    "model",
+    "model"
  ]
-  pruneopts = ""
  revision = "2e54d0b93cba2fd133edc32211dcc32c06ef72ca"

 [[projects]]
  branch = "master"
-  digest = "1:f0857d075687b4ddebb10c8403d5fec9f093f7208b34ed5b6f3101ee2e77cec5"
  name = "github.com/prometheus/procfs"
  packages = [
    ".",
-    "xfs",
+    "xfs"
  ]
-  pruneopts = ""
  revision = "b15cd069a83443be3154b719d0cc9fe8117f09fb"

 [solve-meta]
  analyzer-name = "dep"
  analyzer-version = 1
-  input-imports = [
-    "github.com/docker/distribution/uuid",
-    "github.com/gorilla/mux",
-    "github.com/openfaas/faas-provider/auth",
-    "github.com/openfaas/nats-queue-worker/handler",
-    "github.com/prometheus/client_golang/prometheus",
-    "github.com/prometheus/client_model/go",
-  ]
+  inputs-digest = "b2b3291c34b853085074ceb72c897de6bb7baec0b0193da42a5d0850e5280133"
  solver-name = "gps-cdcl"
  solver-version = 1
--- a/gateway/Gopkg.toml
+++ b/gateway/Gopkg.toml
@ -14,7 +14,7 @@ ignored = ["github.com/openfaas/faas/gateway/queue"]

 [[constraint]]
  name = "github.com/openfaas/nats-queue-worker"
-  version = "0.4.7"
+  version = "0.6.0"

 [[constraint]]
  name = "github.com/prometheus/client_golang"
--- a/gateway/server.go
+++ b/gateway/server.go
@ -10,12 +10,11 @@ import (
 	"time"

 	"github.com/gorilla/mux"
-	"github.com/openfaas/faas/gateway/handlers"
-	"github.com/openfaas/faas/gateway/scaling"
-
 	"github.com/openfaas/faas-provider/auth"
+	"github.com/openfaas/faas/gateway/handlers"
 	"github.com/openfaas/faas/gateway/metrics"
 	"github.com/openfaas/faas/gateway/plugin"
+	"github.com/openfaas/faas/gateway/scaling"
 	"github.com/openfaas/faas/gateway/types"
 	natsHandler "github.com/openfaas/nats-queue-worker/handler"
 )
@ -103,7 +102,12 @@ func main() {

 	if config.UseNATS() {
 		log.Println("Async enabled: Using NATS Streaming.")
-		natsQueue, queueErr := natsHandler.CreateNatsQueue(*config.NATSAddress, *config.NATSPort, natsHandler.DefaultNatsConfig{})
+		maxReconnect := 60
+		interval := time.Second * 2
+
+		defaultNATSConfig := natsHandler.NewDefaultNATSConfig(maxReconnect, interval)
+
+		natsQueue, queueErr := natsHandler.CreateNATSQueue(*config.NATSAddress, *config.NATSPort, defaultNATSConfig)
 		if queueErr != nil {
 			log.Fatalln(queueErr)
 		}
--- a/gateway/vendor/github.com/openfaas/faas-provider/.DEREK.yml
+++ b/gateway/vendor/github.com/openfaas/faas-provider/.DEREK.yml
@ -0,0 +1 @@
+redirect: https://raw.githubusercontent.com/openfaas/faas/master/.DEREK.yml
--- a/gateway/vendor/github.com/openfaas/faas-provider/Dockerfile
+++ b/gateway/vendor/github.com/openfaas/faas-provider/Dockerfile
@ -1,4 +1,4 @@
-FROM golang:1.9.7-alpine
+FROM golang:1.10.4-alpine3.8

 RUN mkdir -p /go/src/github.com/openfaas/faas-provider/

@ -12,7 +12,7 @@ COPY serve.go   .
 RUN go test ./auth/ -v \
    && CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o faas-provider .

-FROM alpine:3.7
+FROM alpine:3.8
 RUN apk --no-cache add ca-certificates
 WORKDIR /root/

--- a/gateway/vendor/github.com/openfaas/faas-provider/Gopkg.lock
+++ b/gateway/vendor/github.com/openfaas/faas-provider/Gopkg.lock
@ -2,20 +2,24 @@


 [[projects]]
+  digest = "1:160eabf7a69910fd74f29c692718bc2437c1c1c7d4c9dea9712357752a70e5df"
  name = "github.com/gorilla/context"
  packages = ["."]
+  pruneopts = "UT"
  revision = "1ea25387ff6f684839d82767c1733ff4d4d15d0a"
  version = "v1.1"

 [[projects]]
+  digest = "1:e73f5b0152105f18bc131fba127d9949305c8693f8a762588a82a48f61756f5f"
  name = "github.com/gorilla/mux"
  packages = ["."]
-  revision = "7f08801859139f86dfafd1c296e2cba9a80d292e"
-  version = "v1.6.0"
+  pruneopts = "UT"
+  revision = "e3702bed27f0d39777b0b37b664b6280e8ef8fbf"
+  version = "v1.6.2"

 [solve-meta]
  analyzer-name = "dep"
  analyzer-version = 1
-  inputs-digest = "22efb1c7d9d2403520db6d9a878b2f1e52741e51425cbda743cfd25f00c84a9b"
+  input-imports = ["github.com/gorilla/mux"]
  solver-name = "gps-cdcl"
  solver-version = 1
--- a/gateway/vendor/github.com/openfaas/faas-provider/Gopkg.toml
+++ b/gateway/vendor/github.com/openfaas/faas-provider/Gopkg.toml
@ -4,4 +4,4 @@

 [[constraint]]
  name = "github.com/gorilla/mux"
-  version = "1.6.0"
+  version = "1.6.2"
--- a/gateway/vendor/github.com/openfaas/faas-provider/proxy/handler_test.go
+++ b/gateway/vendor/github.com/openfaas/faas-provider/proxy/handler_test.go
@ -0,0 +1,134 @@
+package proxy
+
+import (
+	"bytes"
+	"errors"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/gorilla/mux"
+)
+
+type testBaseURLResolver struct {
+	testServerBase string
+	err            error
+}
+
+func (tr *testBaseURLResolver) Resolve(name string) (url.URL, error) {
+	if tr.err != nil {
+		return url.URL{}, tr.err
+	}
+
+	return url.URL{
+		Scheme: "http",
+		Host:   tr.testServerBase,
+	}, nil
+}
+func Test_NewHandlerFunc_Panic(t *testing.T) {
+	defer func() {
+		if r := recover(); r == nil {
+			t.Errorf("should panic if resolver is nil")
+		}
+	}()
+
+	NewHandlerFunc(time.Second, nil)
+}
+
+func Test_NewHandlerFunc_NoPanic(t *testing.T) {
+	defer func() {
+		if r := recover(); r != nil {
+			t.Errorf("should not panic if resolver is not nil")
+		}
+	}()
+
+	proxyFunc := NewHandlerFunc(time.Second, &testBaseURLResolver{})
+	if proxyFunc == nil {
+		t.Errorf("proxy handler func is nil")
+	}
+}
+
+func Test_ProxyHandler_NonAllowedMethods(t *testing.T) {
+
+	proxyFunc := NewHandlerFunc(time.Second, &testBaseURLResolver{})
+
+	nonAllowedMethods := []string{
+		http.MethodHead, http.MethodConnect, http.MethodOptions, http.MethodTrace,
+	}
+
+	for _, method := range nonAllowedMethods {
+		t.Run(method+" method is not allowed", func(t *testing.T) {
+			w := httptest.NewRecorder()
+			req := httptest.NewRequest(method, "http://example.com/foo", nil)
+			proxyFunc(w, req)
+			resp := w.Result()
+			if resp.StatusCode != http.StatusMethodNotAllowed {
+				t.Errorf("expected status code `%d`, got `%d`", http.StatusMethodNotAllowed, resp.StatusCode)
+			}
+		})
+	}
+}
+
+func Test_ProxyHandler_MissingFunctionNameError(t *testing.T) {
+	proxyFunc := NewHandlerFunc(time.Second, &testBaseURLResolver{"", nil})
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest("GET", "http://example.com/foo", nil)
+	req = mux.SetURLVars(req, map[string]string{"name": ""})
+
+	proxyFunc(w, req)
+
+	if w.Code != http.StatusBadRequest {
+		t.Errorf("expected status code `%d`, got `%d`", http.StatusBadRequest, w.Code)
+	}
+
+	respBody := w.Body.String()
+	if respBody != errMissingFunctionName {
+		t.Errorf("expected error message `%s`, got `%s`", errMissingFunctionName, respBody)
+	}
+}
+
+func Test_ProxyHandler_ResolveError(t *testing.T) {
+	logs := &bytes.Buffer{}
+	log.SetOutput(logs)
+
+	resolveErr := errors.New("can not find test service `foo`")
+	proxyFunc := NewHandlerFunc(time.Second, &testBaseURLResolver{"", resolveErr})
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest("GET", "http://example.com/foo", nil)
+	req = mux.SetURLVars(req, map[string]string{"name": "foo"})
+
+	proxyFunc(w, req)
+
+	if w.Code != http.StatusNotFound {
+		t.Errorf("expected status code `%d`, got `%d`", http.StatusBadRequest, w.Code)
+	}
+
+	respBody := w.Body.String()
+	if respBody != "Cannot find service: foo." {
+		t.Errorf("expected error message `%s`, got `%s`", "Cannot find service: foo.", respBody)
+	}
+
+	if !strings.Contains(logs.String(), resolveErr.Error()) {
+		t.Errorf("expected logs to contain `%s`", resolveErr.Error())
+	}
+}
+
+func Test_ProxyHandler_Proxy_Success(t *testing.T) {
+	t.Skip("Test not implemented yet")
+	// testFuncService := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+	// 	w.WriteHeader(http.StatusOK)
+	// }))
+	// proxyFunc := NewHandlerFunc(time.Second, &testBaseURLResolver{testFuncService.URL, nil})
+
+	// w := httptest.NewRecorder()
+	// req := httptest.NewRequest("GET", "http://example.com/foo", nil)
+	// req = mux.SetURLVars(req, map[string]string{"name": "foo"})
+
+	// proxyFunc(w, req)
+}
--- a/gateway/vendor/github.com/openfaas/faas-provider/proxy/proxy.go
+++ b/gateway/vendor/github.com/openfaas/faas-provider/proxy/proxy.go
@ -0,0 +1,221 @@
+// Package proxy provides a default function invocation proxy method for OpenFaaS providers.
+//
+// The function proxy logic is used by the Gateway when `direct_functions` is set to false.
+// This means that the provider will direct call the function and return the results.  This
+// involves resolving the function by name and then copying the result into the original HTTP
+// request.
+//
+// openfaas-provider has implemented a standard HTTP HandlerFunc that will handle setting
+// timeout values, parsing the request path, and copying the request/response correctly.
+// 		bootstrapHandlers := bootTypes.FaaSHandlers{
+// 			FunctionProxy:  proxy.NewHandlerFunc(timeout, resolver),
+// 			DeleteHandler:  handlers.MakeDeleteHandler(clientset),
+// 			DeployHandler:  handlers.MakeDeployHandler(clientset),
+// 			FunctionReader: handlers.MakeFunctionReader(clientset),
+// 			ReplicaReader:  handlers.MakeReplicaReader(clientset),
+// 			ReplicaUpdater: handlers.MakeReplicaUpdater(clientset),
+// 			InfoHandler:    handlers.MakeInfoHandler(),
+// 		}
+//
+// proxy.NewHandlerFunc is optional, but does simplify the logic of your provider.
+package proxy
+
+import (
+	"fmt"
+	"io"
+	"log"
+	"net"
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/gorilla/mux"
+)
+
+const (
+	watchdogPort           = "8080"
+	defaultContentType     = "text/plain"
+	errMissingFunctionName = "Please provide a valid route /function/function_name."
+)
+
+// BaseURLResolver URL resolver for proxy requests
+//
+// The FaaS provider implementation is responsible for providing the resolver function implementation.
+// BaseURLResolver.Resolve will receive the function name and should return the URL of the
+// function service.
+type BaseURLResolver interface {
+	Resolve(functionName string) (url.URL, error)
+}
+
+// NewHandlerFunc creates a standard http.HandlerFunc to proxy function requests.
+// The returned http.HandlerFunc will ensure:
+//
+// 	- proper proxy request timeouts
+// 	- proxy requests for GET, POST, PATCH, PUT, and DELETE
+// 	- path parsing including support for extracing the function name, sub-paths, and query paremeters
+// 	- passing and setting the `X-Forwarded-Host` and `X-Forwarded-For` headers
+// 	- logging errors and proxy request timing to stdout
+//
+// Note that this will panic if `resolver` is nil.
+func NewHandlerFunc(timeout time.Duration, resolver BaseURLResolver) http.HandlerFunc {
+	if resolver == nil {
+		panic("NewHandlerFunc: empty proxy handler resolver, cannot be nil")
+	}
+
+	proxyClient := http.Client{
+		// these Transport values ensure that the http Client will eventually timeout and prevents
+		// infinite retries. The default http.Client configure these timeouts.  The specific
+		// values tuned via performance testing/benchmarking
+		//
+		// Additional context can be found at
+		// - https://medium.com/@nate510/don-t-use-go-s-default-http-client-4804cb19f779
+		// - https://blog.cloudflare.com/the-complete-guide-to-golang-net-http-timeouts/
+		Transport: &http.Transport{
+			Proxy: http.ProxyFromEnvironment,
+			DialContext: (&net.Dialer{
+				Timeout:   timeout,
+				KeepAlive: 1 * time.Second,
+			}).DialContext,
+			IdleConnTimeout:       120 * time.Millisecond,
+			ExpectContinueTimeout: 1500 * time.Millisecond,
+		},
+		Timeout: timeout,
+		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+			return http.ErrUseLastResponse
+		},
+	}
+
+	return func(w http.ResponseWriter, r *http.Request) {
+		if r.Body != nil {
+			defer r.Body.Close()
+		}
+
+		switch r.Method {
+		case http.MethodPost,
+			http.MethodPut,
+			http.MethodPatch,
+			http.MethodDelete,
+			http.MethodGet:
+
+			proxyRequest(w, r, proxyClient, resolver)
+
+		default:
+			w.WriteHeader(http.StatusMethodNotAllowed)
+		}
+	}
+}
+
+// proxyRequest handles the actual resolution of and then request to the function service.
+func proxyRequest(w http.ResponseWriter, originalReq *http.Request, proxyClient http.Client, resolver BaseURLResolver) {
+	ctx := originalReq.Context()
+
+	pathVars := mux.Vars(originalReq)
+	functionName := pathVars["name"]
+	if functionName == "" {
+		writeError(w, http.StatusBadRequest, errMissingFunctionName)
+		return
+	}
+
+	functionAddr, resolveErr := resolver.Resolve(functionName)
+	if resolveErr != nil {
+		// TODO: Should record the 404/not found error in Prometheus.
+		log.Printf("resolver error: cannot find %s: %s\n", functionName, resolveErr.Error())
+		writeError(w, http.StatusNotFound, "Cannot find service: %s.", functionName)
+		return
+	}
+
+	proxyReq, err := buildProxyRequest(originalReq, functionAddr, pathVars["params"])
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, "Failed to resolve service: %s.", functionName)
+		return
+	}
+	defer proxyReq.Body.Close()
+
+	start := time.Now()
+	response, err := proxyClient.Do(proxyReq.WithContext(ctx))
+	seconds := time.Since(start)
+
+	if err != nil {
+		log.Printf("error with proxy request to: %s, %s\n", proxyReq.URL.String(), err.Error())
+
+		writeError(w, http.StatusInternalServerError, "Can't reach service for: %s.", functionName)
+		return
+	}
+
+	log.Printf("%s took %f seconds\n", functionName, seconds.Seconds())
+
+	clientHeader := w.Header()
+	copyHeaders(clientHeader, &response.Header)
+	w.Header().Set("Content-Type", getContentType(response.Header, originalReq.Header))
+
+	w.WriteHeader(http.StatusOK)
+	io.Copy(w, response.Body)
+}
+
+// buildProxyRequest creates a request object for the proxy request, it will ensure that
+// the original request headers are preserved as well as setting openfaas system headers
+func buildProxyRequest(originalReq *http.Request, baseURL url.URL, extraPath string) (*http.Request, error) {
+
+	host := baseURL.Host
+	if baseURL.Port() == "" {
+		host = baseURL.Host + ":" + watchdogPort
+	}
+
+	url := url.URL{
+		Scheme:   baseURL.Scheme,
+		Host:     host,
+		Path:     extraPath,
+		RawQuery: originalReq.URL.RawQuery,
+	}
+
+	upstreamReq, err := http.NewRequest(originalReq.Method, url.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+	copyHeaders(upstreamReq.Header, &originalReq.Header)
+
+	if len(originalReq.Host) > 0 && upstreamReq.Header.Get("X-Forwarded-Host") == "" {
+		upstreamReq.Header["X-Forwarded-Host"] = []string{originalReq.Host}
+	}
+	if upstreamReq.Header.Get("X-Forwarded-For") == "" {
+		upstreamReq.Header["X-Forwarded-For"] = []string{originalReq.RemoteAddr}
+	}
+
+	if originalReq.Body != nil {
+		upstreamReq.Body = originalReq.Body
+	}
+
+	return upstreamReq, nil
+}
+
+// copyHeaders clones the header values from the source into the destination.
+func copyHeaders(destination http.Header, source *http.Header) {
+	for k, v := range *source {
+		vClone := make([]string, len(v))
+		copy(vClone, v)
+		destination[k] = vClone
+	}
+}
+
+// getContentType resolves the correct Content-Type for a proxied function.
+func getContentType(request http.Header, proxyResponse http.Header) (headerContentType string) {
+	responseHeader := proxyResponse.Get("Content-Type")
+	requestHeader := request.Get("Content-Type")
+
+	if len(responseHeader) > 0 {
+		headerContentType = responseHeader
+	} else if len(requestHeader) > 0 {
+		headerContentType = requestHeader
+	} else {
+		headerContentType = defaultContentType
+	}
+
+	return headerContentType
+}
+
+// writeError sets the response status code and write formats the provided message as the
+// response body
+func writeError(w http.ResponseWriter, statusCode int, msg string, args ...interface{}) {
+	w.WriteHeader(statusCode)
+	w.Write([]byte(fmt.Sprintf(msg, args...)))
+}
--- a/gateway/vendor/github.com/openfaas/faas-provider/proxy/proxy_test.go
+++ b/gateway/vendor/github.com/openfaas/faas-provider/proxy/proxy_test.go
@ -0,0 +1,385 @@
+package proxy
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"testing"
+
+	"github.com/gorilla/mux"
+)
+
+func varHandler(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+	w.WriteHeader(http.StatusOK)
+	w.Write([]byte(fmt.Sprintf("name: %s params: %s", vars["name"], vars["params"])))
+}
+
+func testResolver(functionName string) (url.URL, error) {
+	return url.URL{
+		Scheme: "http",
+		Host:   functionName,
+	}, nil
+}
+
+func Test_pathParsing(t *testing.T) {
+	tt := []struct {
+		name         string
+		functionPath string
+		functionName string
+		extraPath    string
+		statusCode   int
+	}{
+		{
+			"simple_name_match",
+			"/function/echo",
+			"echo",
+			"",
+			200,
+		},
+		{
+			"simple_name_match_with_trailing_slash",
+			"/function/echo/",
+			"echo",
+			"",
+			200,
+		},
+		{
+			"name_match_with_additional_path_values",
+			"/function/echo/subPath/extras",
+			"echo",
+			"subPath/extras",
+			200,
+		},
+		{
+			"name_match_with_additional_path_values_and_querystring",
+			"/function/echo/subPath/extras?query=true",
+			"echo",
+			"subPath/extras",
+			200,
+		},
+		{
+			"not_found_if_no_name",
+			"/function/",
+			"",
+			"",
+			404,
+		},
+	}
+
+	// Need to create a router that we can pass the request through so that the vars will be added to the context
+	router := mux.NewRouter()
+	router.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}", varHandler)
+	router.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}/", varHandler)
+	router.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}/{params:.*}", varHandler)
+
+	for _, s := range tt {
+		t.Run(s.name, func(t *testing.T) {
+			rr := httptest.NewRecorder()
+			req, err := http.NewRequest("GET", s.functionPath, nil)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			router.ServeHTTP(rr, req)
+			if rr.Code != s.statusCode {
+				t.Fatalf("unexpected status code; got: %d, expected: %d", rr.Code, s.statusCode)
+			}
+
+			body := rr.Body.String()
+			expectedBody := fmt.Sprintf("name: %s params: %s", s.functionName, s.extraPath)
+			if s.statusCode == http.StatusOK && body != expectedBody {
+				t.Fatalf("incorrect function name and path params; got: %s, expected: %s", body, expectedBody)
+			}
+		})
+	}
+}
+
+func Test_buildProxyRequest_Body_Method_Query(t *testing.T) {
+	srcBytes := []byte("hello world")
+
+	reader := bytes.NewReader(srcBytes)
+	request, _ := http.NewRequest(http.MethodPost, "/?code=1", reader)
+	request.Header.Set("X-Source", "unit-test")
+
+	if request.URL.RawQuery != "code=1" {
+		t.Errorf("Query - want: %s, got: %s", "code=1", request.URL.RawQuery)
+		t.Fail()
+	}
+
+	funcURL, _ := testResolver("funcName")
+	upstream, err := buildProxyRequest(request, funcURL, "")
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	if request.Method != upstream.Method {
+		t.Errorf("Method - want: %s, got: %s", request.Method, upstream.Method)
+		t.Fail()
+	}
+
+	upstreamBytes, _ := ioutil.ReadAll(upstream.Body)
+
+	if string(upstreamBytes) != string(srcBytes) {
+		t.Errorf("Body - want: %s, got: %s", string(upstreamBytes), string(srcBytes))
+		t.Fail()
+	}
+
+	if request.Header.Get("X-Source") != upstream.Header.Get("X-Source") {
+		t.Errorf("Header X-Source - want: %s, got: %s", request.Header.Get("X-Source"), upstream.Header.Get("X-Source"))
+		t.Fail()
+	}
+
+	if request.URL.RawQuery != upstream.URL.RawQuery {
+		t.Errorf("URL.RawQuery - want: %s, got: %s", request.URL.RawQuery, upstream.URL.RawQuery)
+		t.Fail()
+	}
+
+}
+
+func Test_buildProxyRequest_NoBody_GetMethod_NoQuery(t *testing.T) {
+	request, _ := http.NewRequest(http.MethodGet, "/", nil)
+
+	funcURL, _ := testResolver("funcName")
+	upstream, err := buildProxyRequest(request, funcURL, "")
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	if request.Method != upstream.Method {
+		t.Errorf("Method - want: %s, got: %s", request.Method, upstream.Method)
+		t.Fail()
+	}
+
+	if upstream.Body != nil {
+		t.Errorf("Body - expected nil")
+		t.Fail()
+	}
+
+	if request.URL.RawQuery != upstream.URL.RawQuery {
+		t.Errorf("URL.RawQuery - want: %s, got: %s", request.URL.RawQuery, upstream.URL.RawQuery)
+		t.Fail()
+	}
+
+}
+
+func Test_buildProxyRequest_HasXForwardedHostHeaderWhenSet(t *testing.T) {
+	srcBytes := []byte("hello world")
+
+	reader := bytes.NewReader(srcBytes)
+	request, err := http.NewRequest(http.MethodPost, "http://gateway/function?code=1", reader)
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	funcURL, _ := testResolver("funcName")
+	upstream, err := buildProxyRequest(request, funcURL, "/")
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	if request.Host != upstream.Header.Get("X-Forwarded-Host") {
+		t.Errorf("Host - want: %s, got: %s", request.Host, upstream.Header.Get("X-Forwarded-Host"))
+	}
+}
+
+func Test_buildProxyRequest_XForwardedHostHeader_Empty_WhenNotSet(t *testing.T) {
+	srcBytes := []byte("hello world")
+
+	reader := bytes.NewReader(srcBytes)
+	request, err := http.NewRequest(http.MethodPost, "/function", reader)
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	funcURL, _ := testResolver("funcName")
+	upstream, err := buildProxyRequest(request, funcURL, "/")
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	if request.Host != upstream.Header.Get("X-Forwarded-Host") {
+		t.Errorf("Host - want: %s, got: %s", request.Host, upstream.Header.Get("X-Forwarded-Host"))
+	}
+}
+
+func Test_buildProxyRequest_XForwardedHostHeader_WhenAlreadyPresent(t *testing.T) {
+	srcBytes := []byte("hello world")
+	headerValue := "test.openfaas.com"
+	reader := bytes.NewReader(srcBytes)
+	request, err := http.NewRequest(http.MethodPost, "/function/test", reader)
+
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	request.Header.Set("X-Forwarded-Host", headerValue)
+	funcURL, _ := testResolver("funcName")
+	upstream, err := buildProxyRequest(request, funcURL, "/")
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	if upstream.Header.Get("X-Forwarded-Host") != headerValue {
+		t.Errorf("X-Forwarded-Host - want: %s, got: %s", headerValue, upstream.Header.Get("X-Forwarded-Host"))
+	}
+}
+
+func Test_buildProxyRequest_WithPathNoQuery(t *testing.T) {
+	srcBytes := []byte("hello world")
+	functionPath := "/employee/info/300"
+
+	requestPath := fmt.Sprintf("/function/xyz%s", functionPath)
+
+	reader := bytes.NewReader(srcBytes)
+	request, _ := http.NewRequest(http.MethodPost, requestPath, reader)
+	request.Header.Set("X-Source", "unit-test")
+
+	queryWant := ""
+	if request.URL.RawQuery != queryWant {
+
+		t.Errorf("Query - want: %s, got: %s", queryWant, request.URL.RawQuery)
+		t.Fail()
+	}
+
+	funcURL, _ := testResolver("xyz")
+	upstream, err := buildProxyRequest(request, funcURL, functionPath)
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	if request.Method != upstream.Method {
+		t.Errorf("Method - want: %s, got: %s", request.Method, upstream.Method)
+		t.Fail()
+	}
+
+	upstreamBytes, _ := ioutil.ReadAll(upstream.Body)
+
+	if string(upstreamBytes) != string(srcBytes) {
+		t.Errorf("Body - want: %s, got: %s", string(upstreamBytes), string(srcBytes))
+		t.Fail()
+	}
+
+	if request.Header.Get("X-Source") != upstream.Header.Get("X-Source") {
+		t.Errorf("Header X-Source - want: %s, got: %s", request.Header.Get("X-Source"), upstream.Header.Get("X-Source"))
+		t.Fail()
+	}
+
+	if request.URL.RawQuery != upstream.URL.RawQuery {
+		t.Errorf("URL.RawQuery - want: %s, got: %s", request.URL.RawQuery, upstream.URL.RawQuery)
+		t.Fail()
+	}
+
+	if functionPath != upstream.URL.Path {
+		t.Errorf("URL.Path - want: %s, got: %s", functionPath, upstream.URL.Path)
+		t.Fail()
+	}
+
+}
+
+func Test_buildProxyRequest_WithNoPathNoQuery(t *testing.T) {
+	srcBytes := []byte("hello world")
+	functionPath := "/"
+
+	requestPath := fmt.Sprintf("/function/xyz%s", functionPath)
+
+	reader := bytes.NewReader(srcBytes)
+	request, _ := http.NewRequest(http.MethodPost, requestPath, reader)
+	request.Header.Set("X-Source", "unit-test")
+
+	queryWant := ""
+	if request.URL.RawQuery != queryWant {
+
+		t.Errorf("Query - want: %s, got: %s", queryWant, request.URL.RawQuery)
+		t.Fail()
+	}
+
+	funcURL, _ := testResolver("xyz")
+	upstream, err := buildProxyRequest(request, funcURL, functionPath)
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	if request.Method != upstream.Method {
+		t.Errorf("Method - want: %s, got: %s", request.Method, upstream.Method)
+		t.Fail()
+	}
+
+	upstreamBytes, _ := ioutil.ReadAll(upstream.Body)
+
+	if string(upstreamBytes) != string(srcBytes) {
+		t.Errorf("Body - want: %s, got: %s", string(upstreamBytes), string(srcBytes))
+		t.Fail()
+	}
+
+	if request.Header.Get("X-Source") != upstream.Header.Get("X-Source") {
+		t.Errorf("Header X-Source - want: %s, got: %s", request.Header.Get("X-Source"), upstream.Header.Get("X-Source"))
+		t.Fail()
+	}
+
+	if request.URL.RawQuery != upstream.URL.RawQuery {
+		t.Errorf("URL.RawQuery - want: %s, got: %s", request.URL.RawQuery, upstream.URL.RawQuery)
+		t.Fail()
+	}
+
+	if functionPath != upstream.URL.Path {
+		t.Errorf("URL.Path - want: %s, got: %s", functionPath, upstream.URL.Path)
+		t.Fail()
+	}
+
+}
+
+func Test_buildProxyRequest_WithPathAndQuery(t *testing.T) {
+	srcBytes := []byte("hello world")
+	functionPath := "/employee/info/300"
+
+	requestPath := fmt.Sprintf("/function/xyz%s?code=1", functionPath)
+
+	reader := bytes.NewReader(srcBytes)
+	request, _ := http.NewRequest(http.MethodPost, requestPath, reader)
+	request.Header.Set("X-Source", "unit-test")
+
+	if request.URL.RawQuery != "code=1" {
+		t.Errorf("Query - want: %s, got: %s", "code=1", request.URL.RawQuery)
+		t.Fail()
+	}
+
+	funcURL, _ := testResolver("xyz")
+	upstream, err := buildProxyRequest(request, funcURL, functionPath)
+	if err != nil {
+		t.Fatal(err.Error())
+	}
+
+	if request.Method != upstream.Method {
+		t.Errorf("Method - want: %s, got: %s", request.Method, upstream.Method)
+		t.Fail()
+	}
+
+	upstreamBytes, _ := ioutil.ReadAll(upstream.Body)
+
+	if string(upstreamBytes) != string(srcBytes) {
+		t.Errorf("Body - want: %s, got: %s", string(upstreamBytes), string(srcBytes))
+		t.Fail()
+	}
+
+	if request.Header.Get("X-Source") != upstream.Header.Get("X-Source") {
+		t.Errorf("Header X-Source - want: %s, got: %s", request.Header.Get("X-Source"), upstream.Header.Get("X-Source"))
+		t.Fail()
+	}
+
+	if request.URL.RawQuery != upstream.URL.RawQuery {
+		t.Errorf("URL.RawQuery - want: %s, got: %s", request.URL.RawQuery, upstream.URL.RawQuery)
+		t.Fail()
+	}
+
+	if functionPath != upstream.URL.Path {
+		t.Errorf("URL.Path - want: %s, got: %s", functionPath, upstream.URL.Path)
+		t.Fail()
+	}
+
+}
--- a/gateway/vendor/github.com/openfaas/faas-provider/serve.go
+++ b/gateway/vendor/github.com/openfaas/faas-provider/serve.go
@ -9,6 +9,7 @@ import (
 	"net/http"

 	"github.com/gorilla/mux"
+	"github.com/openfaas/faas-provider/auth"
 	"github.com/openfaas/faas-provider/types"
 )

@ -26,6 +27,28 @@ func Router() *mux.Router {

 // Serve load your handlers into the correct OpenFaaS route spec. This function is blocking.
 func Serve(handlers *types.FaaSHandlers, config *types.FaaSConfig) {
+
+	if config.EnableBasicAuth {
+		reader := auth.ReadBasicAuthFromDisk{
+			SecretMountPath: config.SecretMountPath,
+		}
+
+		credentials, err := reader.Read()
+		if err != nil {
+			log.Fatal(err)
+		}
+
+		handlers.FunctionReader = auth.DecorateWithBasicAuth(handlers.FunctionReader, credentials)
+		handlers.DeployHandler = auth.DecorateWithBasicAuth(handlers.DeployHandler, credentials)
+		handlers.DeleteHandler = auth.DecorateWithBasicAuth(handlers.DeleteHandler, credentials)
+		handlers.UpdateHandler = auth.DecorateWithBasicAuth(handlers.UpdateHandler, credentials)
+		handlers.ReplicaReader = auth.DecorateWithBasicAuth(handlers.ReplicaReader, credentials)
+		handlers.ReplicaUpdater = auth.DecorateWithBasicAuth(handlers.ReplicaUpdater, credentials)
+		handlers.InfoHandler = auth.DecorateWithBasicAuth(handlers.InfoHandler, credentials)
+		handlers.SecretHandler = auth.DecorateWithBasicAuth(handlers.SecretHandler, credentials)
+	}
+
+	// System (auth) endpoints
 	r.HandleFunc("/system/functions", handlers.FunctionReader).Methods("GET")
 	r.HandleFunc("/system/functions", handlers.DeployHandler).Methods("POST")
 	r.HandleFunc("/system/functions", handlers.DeleteHandler).Methods("DELETE")
@ -33,11 +56,14 @@ func Serve(handlers *types.FaaSHandlers, config *types.FaaSConfig) {

 	r.HandleFunc("/system/function/{name:[-a-zA-Z_0-9]+}", handlers.ReplicaReader).Methods("GET")
 	r.HandleFunc("/system/scale-function/{name:[-a-zA-Z_0-9]+}", handlers.ReplicaUpdater).Methods("POST")
+	r.HandleFunc("/system/info", handlers.InfoHandler).Methods("GET")

+	r.HandleFunc("/system/secrets", handlers.SecretHandler).Methods(http.MethodGet, http.MethodPut, http.MethodPost, http.MethodDelete)
+
+	// Open endpoints
 	r.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}", handlers.FunctionProxy)
 	r.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}/", handlers.FunctionProxy)
-
-	r.HandleFunc("/system/info", handlers.InfoHandler).Methods("GET")
+	r.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}/{params:.*}", handlers.FunctionProxy)

 	if config.EnableHealth {
 		r.HandleFunc("/healthz", handlers.Health).Methods("GET")
--- a/gateway/vendor/github.com/openfaas/faas-provider/types/config.go
+++ b/gateway/vendor/github.com/openfaas/faas-provider/types/config.go
@ -9,10 +9,13 @@ import (
 type FaaSHandlers struct {
 	FunctionReader http.HandlerFunc
 	DeployHandler  http.HandlerFunc
+	// FunctionProxy provides the function invocation proxy logic.  Use proxy.NewHandlerFunc to
+	// use the standard OpenFaaS proxy implementation or provide completely custom proxy logic.
+	FunctionProxy  http.HandlerFunc
 	DeleteHandler  http.HandlerFunc
 	ReplicaReader  http.HandlerFunc
-	FunctionProxy  http.HandlerFunc
 	ReplicaUpdater http.HandlerFunc
+	SecretHandler  http.HandlerFunc

 	// Optional: Update an existing function
 	UpdateHandler http.HandlerFunc
@ -26,4 +29,6 @@ type FaaSConfig struct {
 	ReadTimeout     time.Duration
 	WriteTimeout    time.Duration
 	EnableHealth    bool
+	EnableBasicAuth bool
+	SecretMountPath string
 }
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/.DEREK.yml
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/.DEREK.yml
@ -1,16 +1 @@
-maintainers:
- - alexellis
- - rgee0
- - johnmccabe
- - jockdarock
- - ericstoekl
- - austinfrey
- - itscaro
- - rorpage
- - kenfdev
- - BurtonR
-
-features:
- - dco_check
- - comments
- 
+redirect: https://raw.githubusercontent.com/openfaas/faas/master/.DEREK.yml
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/.travis.yml
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/.travis.yml
@ -23,10 +23,16 @@ after_success:
    - if [ ! -z "$TRAVIS_TAG" ] ; then
    
        if [ -z $DOCKER_NS ] ; then
-          export DOCKER_NS=functions;
+          export DOCKER_NS=openfaas;
          fi

        docker tag $DOCKER_NS/queue-worker:latest-dev $DOCKER_NS/queue-worker:$TRAVIS_TAG;
        echo $DOCKER_PASSWORD | docker login -u=$DOCKER_USERNAME --password-stdin;
        docker push $DOCKER_NS/queue-worker:$TRAVIS_TAG;
+
+
+        docker tag $DOCKER_NS/queue-worker:latest-dev quay.io/$DOCKER_NS/queue-worker:$TRAVIS_TAG;
+        echo $QUAY_PASSWORD | docker login -u=$QUAY_USERNAME --password-stdin quay.io;
+        docker push quay.io/$DOCKER_NS/queue-worker:$TRAVIS_TAG;
+
        fi
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/Dockerfile
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/Dockerfile
@ -1,14 +1,18 @@
-FROM golang:1.9.7-alpine as golang
+FROM golang:1.10-alpine as golang
 WORKDIR /go/src/github.com/openfaas/nats-queue-worker

 COPY vendor     vendor
 COPY handler    handler
+COPY nats       nats
 COPY main.go  .
+COPY readconfig.go .
+COPY readconfig_test.go .
+COPY auth.go .

-RUN go test -v ./handler/
+RUN go test -v ./...
 RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .

-FROM alpine:3.7
+FROM alpine:3.8

 RUN addgroup -S app \
  && adduser -S -g app app \
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/Dockerfile.arm64
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/Dockerfile.arm64
@ -0,0 +1,32 @@
+FROM golang:1.10-alpine as golang
+WORKDIR /go/src/github.com/openfaas/nats-queue-worker
+
+COPY vendor     vendor
+COPY handler    handler
+COPY nats	nats
+COPY auth.go		.
+COPY readconfig.go 	.
+COPY readconfig_test.go .
+COPY main.go  		.
+
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .
+
+FROM alpine:3.8
+
+RUN addgroup -S app \
+  && adduser -S -g app app \
+  && apk add --no-cache ca-certificates
+
+WORKDIR /home/app
+
+EXPOSE 8080
+
+ENV http_proxy      ""
+ENV https_proxy     ""
+
+COPY --from=golang /go/src/github.com/openfaas/nats-queue-worker/app    .
+
+RUN chown -R app:app ./
+
+USER app
+CMD ["./app"]
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/Dockerfile.armhf
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/Dockerfile.armhf
@ -1,13 +1,17 @@
-FROM golang:1.9.7-alpine as golang
+FROM golang:1.10-alpine as golang
 WORKDIR /go/src/github.com/openfaas/nats-queue-worker

 COPY vendor     vendor
 COPY handler    handler
+COPY nats       nats
 COPY main.go  .
+COPY readconfig.go .
+COPY readconfig_test.go .
+COPY auth.go .

 RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .

-FROM alpine:3.7
+FROM alpine:3.8

 RUN addgroup -S app \
  && adduser -S -g app app \
@ -16,6 +20,7 @@ RUN addgroup -S app \
 WORKDIR /home/app

 EXPOSE 8080
+
 ENV http_proxy      ""
 ENV https_proxy     ""

--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/Gopkg.lock
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/Gopkg.lock
@ -39,12 +39,18 @@
 [[projects]]
  name = "github.com/openfaas/faas"
  packages = ["gateway/queue"]
-  revision = "81334141832d6c4fc9b78e6b5e17e5330eca7606"
-  version = "0.8.2"
+  revision = "bfa869ec8c0c04c26c5b0ed434bc367e712dcaef"
+  version = "0.10.2"
+
+[[projects]]
+  name = "github.com/openfaas/faas-provider"
+  packages = ["auth"]
+  revision = "9ce928bc82cbb2642e6d534f93a7904116179e6c"
+  version = "0.7.0"

 [solve-meta]
  analyzer-name = "dep"
  analyzer-version = 1
-  inputs-digest = "fb873f03ba109e6e479b9133d610f50d7fd6cbcdc0fe7dcf947ae70a1eade465"
+  inputs-digest = "b568e20d336fb2625ad72caa1b479a46ed1362e320083720feabccd1abaedbee"
  solver-name = "gps-cdcl"
  solver-version = 1
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/Gopkg.toml
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/Gopkg.toml
@ -31,7 +31,7 @@

 [[constraint]]
  name = "github.com/openfaas/faas"
-  version = "0.8.2"
+  version = "0.10.2"

 [[constraint]]
  name = "github.com/nats-io/go-nats"
@ -40,3 +40,7 @@
 [prune]
  go-tests = true
  unused-packages = true
+
+[[constraint]]
+  name = "github.com/openfaas/faas-provider"
+  version = "0.7.0"
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/Makefile
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/Makefile
@ -1,9 +1,29 @@
 TAG?=latest

+.PHONY: build
 build:
-	docker build --build-arg http_proxy="${http_proxy}" --build-arg https_proxy="${https_proxy}" -t functions/queue-worker:$(TAG) .
+	docker build --build-arg http_proxy="${http_proxy}" --build-arg https_proxy="${https_proxy}" -t openfaas/queue-worker:$(TAG) .

+.PHONY: push
 push:
-	docker push functions/queue-worker:$(TAG)
+	docker push openfaas/queue-worker:$(TAG)

+.PHONY: all
 all: build
+
+.PHONY: ci-armhf-build
+ci-armhf-build:
+	docker build --build-arg http_proxy="${http_proxy}" --build-arg https_proxy="${https_proxy}" -t openfaas/queue-worker:$(TAG)-armhf . -f Dockerfile.armhf
+
+.PHONY: ci-armhf-push
+ci-armhf-push:
+	docker push openfaas/queue-worker:$(TAG)-armhf
+
+.PHONY: ci-arm64-build
+ci-arm64-build:
+	docker build --build-arg http_proxy="${http_proxy}" --build-arg https_proxy="${https_proxy}" -t openfaas/queue-worker:$(TAG)-arm64 . -f Dockerfile.arm64
+
+.PHONY: ci-arm64-push
+ci-arm64-push:
+	docker push openfaas/queue-worker:$(TAG)-arm64
+
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/README.md
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/README.md
@ -1,12 +1,14 @@
 ## Queue worker for OpenFaaS - NATS Streaming

+[![Build Status](https://travis-ci.org/openfaas/nats-queue-worker.svg?branch=master)](https://travis-ci.org/openfaas/nats-queue-worker)
+
 This is a queue-worker to enable asynchronous processing of function requests. 

 > Note: A Kafka queue-worker is under-way through a PR on the main OpenFaaS repository.

 * [Read more in the async guide](https://github.com/openfaas/faas/blob/master/guide/asynchronous.md)

-Hub image: [functions/queue-worker](https://hub.docker.com/r/functions/queue-worker/)
+Hub image: [openfaas/queue-worker](https://hub.docker.com/r/openfaas/queue-worker/)

 License: MIT

--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/auth.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/auth.go
@ -0,0 +1,43 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+
+	"github.com/openfaas/faas-provider/auth"
+)
+
+//AddBasicAuth to a request by reading secrets
+func AddBasicAuth(req *http.Request) error {
+	if os.Getenv("basic_auth") == "true" {
+		reader := auth.ReadBasicAuthFromDisk{}
+
+		if len(os.Getenv("secret_mount_path")) > 0 {
+			reader.SecretMountPath = os.Getenv("secret_mount_path")
+		}
+
+		credentials, err := reader.Read()
+		if err != nil {
+			return fmt.Errorf("Unable to read basic auth: %s", err.Error())
+		}
+
+		req.SetBasicAuth(credentials.User, credentials.Password)
+	}
+	return nil
+}
+
+//LoadCredentials load credentials from dis
+func LoadCredentials() (*auth.BasicAuthCredentials, error) {
+	reader := auth.ReadBasicAuthFromDisk{}
+
+	if len(os.Getenv("secret_mount_path")) > 0 {
+		reader.SecretMountPath = os.Getenv("secret_mount_path")
+	}
+
+	credentials, err := reader.Read()
+	if err != nil {
+		return nil, fmt.Errorf("Unable to read basic auth: %s", err.Error())
+	}
+	return credentials, nil
+}
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/build.sh
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/build.sh
@ -6,6 +6,6 @@ if [ $1 ] ; then
  eTAG=$1
 fi

-echo Building functions/queue-worker:$eTAG
+echo Building openfaas/queue-worker:$eTAG

-docker build --build-arg http_proxy=$http_proxy -t functions/queue-worker:$eTAG .
+docker build --build-arg http_proxy=$http_proxy -t openfaas/queue-worker:$eTAG .
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/handler/handler.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/handler/handler.go
@ -1,38 +1,13 @@
 package handler

 import (
-	"encoding/json"
 	"fmt"
 	"log"
-	"os"
-
-	"github.com/nats-io/go-nats-streaming"
-	"github.com/openfaas/faas/gateway/queue"
-	"regexp"
+	"sync"
 )

-// NatsQueue queue for work
-type NatsQueue struct {
-	nc stan.Conn
-}
-
-type NatsConfig interface {
-	GetClientID() string
-}
-
-type DefaultNatsConfig struct {
-}
-
-var supportedCharacters, _ = regexp.Compile("[^a-zA-Z0-9-_]+")
-
-func (DefaultNatsConfig) GetClientID() string {
-	val, _ := os.Hostname()
-	return getClientId(val)
-}
-
-// CreateNatsQueue ready for asynchronous processing
-func CreateNatsQueue(address string, port int, clientConfig NatsConfig) (*NatsQueue, error) {
-	queue1 := NatsQueue{}
+// CreateNATSQueue ready for asynchronous processing
+func CreateNATSQueue(address string, port int, clientConfig NATSConfig) (*NATSQueue, error) {
 	var err error
 	natsURL := fmt.Sprintf("nats://%s:%d", address, port)
 	log.Printf("Opening connection to %s\n", natsURL)
@ -40,28 +15,17 @@ func CreateNatsQueue(address string, port int, clientConfig NatsConfig) (*NatsQu
 	clientID := clientConfig.GetClientID()
 	clusterID := "faas-cluster"

-	nc, err := stan.Connect(clusterID, clientID, stan.NatsURL(natsURL))
-	queue1.nc = nc
+	queue1 := NATSQueue{
+		ClientID:       clientID,
+		ClusterID:      clusterID,
+		NATSURL:        natsURL,
+		Topic:          "faas-request",
+		maxReconnect:   clientConfig.GetMaxReconnect(),
+		reconnectDelay: clientConfig.GetReconnectDelay(),
+		ncMutex:        &sync.RWMutex{},
+	}
+
+	err = queue1.connect()

 	return &queue1, err
 }
-
-// Queue request for processing
-func (q *NatsQueue) Queue(req *queue.Request) error {
-	var err error
-
-	fmt.Printf("NatsQueue - submitting request: %s.\n", req.Function)
-
-	out, err := json.Marshal(req)
-	if err != nil {
-		log.Println(err)
-	}
-
-	err = q.nc.Publish("faas-request", out)
-
-	return err
-}
-
-func getClientId(hostname string) string {
-	return "faas-publisher-" + supportedCharacters.ReplaceAllString(hostname, "_")
-}
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/handler/handler_test.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/handler/handler_test.go
@ -4,36 +4,37 @@ import (
 	"os"
 	"strings"
 	"testing"
+
+	"github.com/openfaas/nats-queue-worker/nats"
 )

 func Test_GetClientID_ContainsHostname(t *testing.T) {
-	c := DefaultNatsConfig{}
+	c := DefaultNATSConfig{}

 	val := c.GetClientID()

 	hostname, _ := os.Hostname()
-	if !strings.HasSuffix(val, hostname) {
+	encodedHostname := nats.GetClientID(hostname)
+	if !strings.HasSuffix(val, encodedHostname) {
 		t.Errorf("GetClientID should contain hostname as suffix, got: %s", val)
 		t.Fail()
 	}
 }

-func TestCreateClientId(t *testing.T) {
-	clientId := getClientId("computer-a")
-	expected := "faas-publisher-computer-a"
-	if clientId != expected {
-		t.Logf("Expected client id `%s` actual `%s`\n", expected, clientId)
+func TestCreategetClientID(t *testing.T) {
+	clientID := getClientID("computer-a")
+	want := "faas-publisher-computer-a"
+	if clientID != want {
+		t.Logf("Want clientID: `%s`, but got: `%s`\n", want, clientID)
 		t.Fail()
 	}
 }

-func TestCreateClientIdWhenHostHasUnsupportedCharacters(t *testing.T) {
-	clientId := getClientId("computer-a.acme.com")
-	expected := "faas-publisher-computer-a_acme_com"
-	if clientId != expected {
-		t.Logf("Expected client id `%s` actual `%s`\n", expected, clientId)
+func TestCreategetClientIDWhenHostHasUnsupportedCharacters(t *testing.T) {
+	clientID := getClientID("computer-a.acme.com")
+	want := "faas-publisher-computer-a_acme_com"
+	if clientID != want {
+		t.Logf("Want clientID: `%s`, but got: `%s`\n", want, clientID)
 		t.Fail()
 	}
 }
-
-
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/handler/nats_config.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/handler/nats_config.go
@ -0,0 +1,41 @@
+package handler
+
+import (
+	"os"
+	"time"
+
+	"github.com/openfaas/nats-queue-worker/nats"
+)
+
+type NATSConfig interface {
+	GetClientID() string
+	GetMaxReconnect() int
+	GetReconnectDelay() time.Duration
+}
+
+type DefaultNATSConfig struct {
+	maxReconnect   int
+	reconnectDelay time.Duration
+}
+
+func NewDefaultNATSConfig(maxReconnect int, reconnectDelay time.Duration) DefaultNATSConfig {
+	return DefaultNATSConfig{maxReconnect, reconnectDelay}
+}
+
+// GetClientID returns the ClientID assigned to this producer/consumer.
+func (DefaultNATSConfig) GetClientID() string {
+	val, _ := os.Hostname()
+	return getClientID(val)
+}
+
+func (c DefaultNATSConfig) GetMaxReconnect() int {
+	return c.maxReconnect
+}
+
+func (c DefaultNATSConfig) GetReconnectDelay() time.Duration {
+	return c.reconnectDelay
+}
+
+func getClientID(hostname string) string {
+	return "faas-publisher-" + nats.GetClientID(hostname)
+}
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/handler/nats_queue.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/handler/nats_queue.go
@ -0,0 +1,88 @@
+package handler
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"sync"
+	"time"
+
+	"github.com/nats-io/go-nats-streaming"
+	"github.com/openfaas/faas/gateway/queue"
+)
+
+// NATSQueue queue for work
+type NATSQueue struct {
+	nc             stan.Conn
+	ncMutex        *sync.RWMutex
+	maxReconnect   int
+	reconnectDelay time.Duration
+
+	// ClientID for NATS Streaming
+	ClientID string
+
+	// ClusterID in NATS Streaming
+	ClusterID string
+
+	// NATSURL URL to connect to NATS
+	NATSURL string
+
+	// Topic to respond to
+	Topic string
+}
+
+// Queue request for processing
+func (q *NATSQueue) Queue(req *queue.Request) error {
+	fmt.Printf("NatsQueue - submitting request: %s.\n", req.Function)
+
+	out, err := json.Marshal(req)
+	if err != nil {
+		log.Println(err)
+	}
+
+	q.ncMutex.RLock()
+	nc := q.nc
+	q.ncMutex.RUnlock()
+
+	return nc.Publish(q.Topic, out)
+}
+
+func (q *NATSQueue) connect() error {
+	nc, err := stan.Connect(
+		q.ClusterID,
+		q.ClientID,
+		stan.NatsURL(q.NATSURL),
+		stan.SetConnectionLostHandler(func(conn stan.Conn, err error) {
+			log.Printf("Disconnected from %s\n", q.NATSURL)
+
+			q.reconnect()
+		}),
+	)
+
+	if err != nil {
+		return err
+	}
+
+	q.ncMutex.Lock()
+	q.nc = nc
+	q.ncMutex.Unlock()
+
+	return nil
+}
+
+func (q *NATSQueue) reconnect() {
+	for i := 0; i < q.maxReconnect; i++ {
+		time.Sleep(time.Second * time.Duration(i) * q.reconnectDelay)
+
+		if err := q.connect(); err == nil {
+			log.Printf("Reconnecting (%d/%d) to %s. OK\n", i+1, q.maxReconnect, q.NATSURL)
+
+			return
+		}
+
+		log.Printf("Reconnecting (%d/%d) to %s failed\n", i+1, q.maxReconnect, q.NATSURL)
+	}
+
+	log.Printf("Reached reconnection limit (%d) for %s\n", q.maxReconnect, q.NATSURL)
+
+}
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/main.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/main.go
@ -10,14 +10,15 @@ import (
 	"net"
 	"os"
 	"os/signal"
-	"strconv"
 	"strings"
 	"time"

 	"net/http"

 	"github.com/nats-io/go-nats-streaming"
+	"github.com/openfaas/faas-provider/auth"
 	"github.com/openfaas/faas/gateway/queue"
+	"github.com/openfaas/nats-queue-worker/nats"
 )

 // AsyncReport is the report from a function executed on a queue worker.
@ -49,41 +50,32 @@ func makeClient() http.Client {
 }

 func main() {
+	readConfig := ReadConfig{}
+	config := readConfig.Read()
 	log.SetFlags(0)

 	clusterID := "faas-cluster"
 	val, _ := os.Hostname()
-	clientID := "faas-worker-" + val
-
-	natsAddress := "nats"
-	gatewayAddress := "gateway"
-	functionSuffix := ""
-	var debugPrintBody bool
-
-	if val, exists := os.LookupEnv("faas_nats_address"); exists {
-		natsAddress = val
-	}
-
-	if val, exists := os.LookupEnv("faas_gateway_address"); exists {
-		gatewayAddress = val
-	}
-
-	if val, exists := os.LookupEnv("faas_function_suffix"); exists {
-		functionSuffix = val
-	}
-
-	if val, exists := os.LookupEnv("faas_print_body"); exists {
-		debugPrintBody = val == "1" || val == "true"
-	}
+	clientID := "faas-worker-" + nats.GetClientID(val)

 	var durable string
 	var qgroup string
 	var unsubscribe bool
+	var credentials *auth.BasicAuthCredentials
+	var err error
+
+	if os.Getenv("basic_auth") == "true" {
+		log.Printf("Loading basic authentication credentials")
+		credentials, err = LoadCredentials()
+		if err != nil {
+			log.Printf("Error with LoadCredentials: %s ", err.Error())
+		}
+	}

 	client := makeClient()
-	sc, err := stan.Connect(clusterID, clientID, stan.NatsURL("nats://"+natsAddress+":4222"))
+	sc, err := stan.Connect(clusterID, clientID, stan.NatsURL("nats://"+config.NatsAddress+":4222"))
 	if err != nil {
-		log.Fatalf("Can't connect: %v\n", err)
+		log.Fatalf("Can't connect to %s: %v\n", "nats://"+config.NatsAddress+":4222", err)
 	}

 	startOpt := stan.StartWithLastReceived()
@ -104,8 +96,11 @@ func main() {
 			return
 		}

+		xCallID := req.Header.Get("X-Call-Id")
+
 		fmt.Printf("Request for %s.\n", req.Function)
-		if debugPrintBody {
+
+		if config.DebugPrintBody {
 			fmt.Println(string(req.Body))
 		}

@ -114,7 +109,7 @@ func main() {
 			queryString = fmt.Sprintf("?%s", strings.TrimLeft(req.QueryString, "?"))
 		}

-		functionURL := fmt.Sprintf("http://%s%s:8080/%s", req.Function, functionSuffix, queryString)
+		functionURL := fmt.Sprintf("http://%s%s:8080/%s", req.Function, config.FunctionSuffix, queryString)

 		request, err := http.NewRequest(http.MethodPost, functionURL, bytes.NewReader(req.Body))
 		defer request.Body.Close()
@ -134,7 +129,12 @@ func main() {
 			if req.CallbackURL != nil {
 				log.Printf("Callback to: %s\n", req.CallbackURL.String())

-				resultStatusCode, resultErr := postResult(&client, res, functionResult, req.CallbackURL.String())
+				resultStatusCode, resultErr := postResult(&client,
+					res,
+					functionResult,
+					req.CallbackURL.String(),
+					xCallID,
+					status)
 				if resultErr != nil {
 					log.Println(resultErr)
 				} else {
@ -142,7 +142,7 @@ func main() {
 				}
 			}

-			statusCode, reportErr := postReport(&client, req.Function, status, timeTaken, gatewayAddress)
+			statusCode, reportErr := postReport(&client, req.Function, status, timeTaken, config.GatewayAddress, credentials)
 			if reportErr != nil {
 				log.Println(reportErr)
 			} else {
@ -160,7 +160,12 @@ func main() {
 			if err != nil {
 				log.Println(err)
 			}
+
+			if config.WriteDebug {
 				fmt.Println(string(functionResult))
+			} else {
+				fmt.Printf("Wrote %d Bytes\n", len(string(functionResult)))
+			}
 		}

 		timeTaken := time.Since(started).Seconds()
@ -169,7 +174,12 @@ func main() {

 		if req.CallbackURL != nil {
 			log.Printf("Callback to: %s\n", req.CallbackURL.String())
-			resultStatusCode, resultErr := postResult(&client, res, functionResult, req.CallbackURL.String())
+			resultStatusCode, resultErr := postResult(&client,
+				res,
+				functionResult,
+				req.CallbackURL.String(),
+				xCallID,
+				res.StatusCode)
 			if resultErr != nil {
 				log.Println(resultErr)
 			} else {
@ -177,7 +187,7 @@ func main() {
 			}
 		}

-		statusCode, reportErr := postReport(&client, req.Function, res.StatusCode, timeTaken, gatewayAddress)
+		statusCode, reportErr := postReport(&client, req.Function, res.StatusCode, timeTaken, config.GatewayAddress, credentials)

 		if reportErr != nil {
 			log.Println(reportErr)
@ -189,29 +199,8 @@ func main() {
 	subj := "faas-request"
 	qgroup = "faas"

-	ackWait := time.Second * 30
-	maxInflight := 1
-
-	if value, exists := os.LookupEnv("max_inflight"); exists {
-		val, err := strconv.Atoi(value)
-		if err != nil {
-			log.Println("max_inflight error:", err)
-		} else {
-			maxInflight = val
-		}
-	}
-
-	if val, exists := os.LookupEnv("ack_wait"); exists {
-		ackWaitVal, durationErr := time.ParseDuration(val)
-		if durationErr != nil {
-			log.Println("ack_wait error:", durationErr)
-		} else {
-			ackWait = ackWaitVal
-		}
-	}
-
-	log.Println("Wait for ", ackWait)
-	sub, err := sc.QueueSubscribe(subj, qgroup, mcb, startOpt, stan.DurableName(durable), stan.MaxInflight(maxInflight), stan.AckWait(ackWait))
+	log.Println("Wait for ", config.AckWait)
+	sub, err := sc.QueueSubscribe(subj, qgroup, mcb, startOpt, stan.DurableName(durable), stan.MaxInflight(config.MaxInflight), stan.AckWait(config.AckWait))
 	if err != nil {
 		log.Panicln(err)
 	}
@ -224,7 +213,7 @@ func main() {
 	cleanupDone := make(chan bool)
 	signal.Notify(signalChan, os.Interrupt)
 	go func() {
-		for _ = range signalChan {
+		for range signalChan {
 			fmt.Printf("\nReceived an interrupt, unsubscribing and closing connection...\n\n")
 			// Do not unsubscribe a durable on exit, except if asked to.
 			if durable == "" || unsubscribe {
@ -237,7 +226,7 @@ func main() {
 	<-cleanupDone
 }

-func postResult(client *http.Client, functionRes *http.Response, result []byte, callbackURL string) (int, error) {
+func postResult(client *http.Client, functionRes *http.Response, result []byte, callbackURL string, xCallID string, statusCode int) (int, error) {
 	var reader io.Reader

 	if result != nil {
@ -246,7 +235,15 @@ func postResult(client *http.Client, functionRes *http.Response, result []byte,

 	request, err := http.NewRequest(http.MethodPost, callbackURL, reader)

+	if functionRes != nil {
 		copyHeaders(request.Header, &functionRes.Header)
+	}
+
+	request.Header.Set("X-Function-Status", fmt.Sprintf("%d", statusCode))
+
+	if len(xCallID) > 0 {
+		request.Header.Set("X-Call-Id", xCallID)
+	}

 	res, err := client.Do(request)

@ -272,7 +269,7 @@ func copyHeaders(destination http.Header, source *http.Header) {
 	}
 }

-func postReport(client *http.Client, function string, statusCode int, timeTaken float64, gatewayAddress string) (int, error) {
+func postReport(client *http.Client, function string, statusCode int, timeTaken float64, gatewayAddress string, credentials *auth.BasicAuthCredentials) (int, error) {
 	req := AsyncReport{
 		FunctionName: function,
 		StatusCode:   statusCode,
@ -282,6 +279,11 @@ func postReport(client *http.Client, function string, statusCode int, timeTaken
 	targetPostback := "http://" + gatewayAddress + ":8080/system/async-report"
 	reqBytes, _ := json.Marshal(req)
 	request, err := http.NewRequest(http.MethodPost, targetPostback, bytes.NewReader(reqBytes))
+
+	if os.Getenv("basic_auth") == "true" && credentials != nil {
+		request.SetBasicAuth(credentials.User, credentials.Password)
+	}
+
 	defer request.Body.Close()

 	res, err := client.Do(request)
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/nats/client.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/nats/client.go
@ -0,0 +1,8 @@
+package nats
+
+import "regexp"
+
+var supportedCharacters = regexp.MustCompile("[^a-zA-Z0-9-_]+")
+func GetClientID(value string) string {
+	return supportedCharacters.ReplaceAllString(value, "_")
+}
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/nats/client_test.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/nats/client_test.go
@ -0,0 +1,23 @@
+package nats
+
+import (
+	"testing"
+)
+
+func TestGetClientID(t *testing.T) {
+	clientID := GetClientID("computer-a")
+	want := "computer-a"
+	if clientID != want {
+		t.Logf("Want clientID: `%s`, but got: `%s`\n", want, clientID)
+		t.Fail()
+	}
+}
+
+func TestGetClientIDWhenHostHasUnsupportedCharacters(t *testing.T) {
+	clientID := GetClientID("computer-a.acme.com")
+	want := "computer-a_acme_com"
+	if clientID != want {
+		t.Logf("Want clientID: `%s`, but got: `%s`\n", want, clientID)
+		t.Fail()
+	}
+}
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/readconfig.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/readconfig.go
@ -0,0 +1,81 @@
+package main
+
+import (
+	"log"
+	"os"
+	"strconv"
+	"time"
+)
+
+// ReadConfig constitutes config from env variables
+type ReadConfig struct {
+}
+
+func (ReadConfig) Read() QueueWorkerConfig {
+	cfg := QueueWorkerConfig{
+		AckWait:     time.Second * 30,
+		MaxInflight: 1,
+	}
+
+	if val, exists := os.LookupEnv("faas_nats_address"); exists {
+		cfg.NatsAddress = val
+	} else {
+		cfg.NatsAddress = "nats"
+	}
+
+	if val, exists := os.LookupEnv("faas_gateway_address"); exists {
+		cfg.GatewayAddress = val
+	} else {
+		cfg.GatewayAddress = "gateway"
+	}
+
+	if val, exists := os.LookupEnv("faas_function_suffix"); exists {
+		cfg.FunctionSuffix = val
+	}
+
+	if val, exists := os.LookupEnv("faas_print_body"); exists {
+		if val == "1" || val == "true" {
+			cfg.DebugPrintBody = true
+		} else {
+			cfg.DebugPrintBody = false
+		}
+	}
+
+	if val, exists := os.LookupEnv("write_debug"); exists {
+		if val == "1" || val == "true" {
+			cfg.WriteDebug = true
+		} else {
+			cfg.WriteDebug = false
+		}
+	}
+
+	if value, exists := os.LookupEnv("max_inflight"); exists {
+		val, err := strconv.Atoi(value)
+		if err != nil {
+			log.Println("max_inflight error:", err)
+		} else {
+			cfg.MaxInflight = val
+		}
+	}
+
+	if val, exists := os.LookupEnv("ack_wait"); exists {
+		ackWaitVal, durationErr := time.ParseDuration(val)
+		if durationErr != nil {
+			log.Println("ack_wait error:", durationErr)
+		} else {
+			cfg.AckWait = ackWaitVal
+		}
+	}
+
+	return cfg
+}
+
+type QueueWorkerConfig struct {
+	NatsAddress    string
+	GatewayAddress string
+	FunctionSuffix string
+	DebugPrintBody bool
+	WriteDebug     bool
+	MaxInflight    int
+	AckWait        time.Duration
+}
--- a/gateway/vendor/github.com/openfaas/nats-queue-worker/readconfig_test.go
+++ b/gateway/vendor/github.com/openfaas/nats-queue-worker/readconfig_test.go
@ -0,0 +1,96 @@
+package main
+
+import (
+	"os"
+	"testing"
+	"time"
+)
+
+func Test_ReadConfig(t *testing.T) {
+
+	readConfig := ReadConfig{}
+
+	os.Setenv("faas_nats_address", "test_nats")
+	os.Setenv("faas_gateway_address", "test_gatewayaddr")
+	os.Setenv("faas_function_suffix", "test_suffix")
+	os.Setenv("faas_print_body", "true")
+	os.Setenv("write_debug", "true")
+	os.Setenv("max_inflight", "10")
+	os.Setenv("ack_wait", "10ms")
+
+	config := readConfig.Read()
+
+	expected := "test_nats"
+	if config.NatsAddress != expected {
+		t.Logf("Expected NatsAddress `%s` actual `%s`\n", expected, config.NatsAddress)
+		t.Fail()
+	}
+
+	expected = "test_gatewayaddr"
+	if config.GatewayAddress != expected {
+		t.Logf("Expected GatewayAddress `%s` actual `%s`\n", expected, config.GatewayAddress)
+		t.Fail()
+	}
+
+	expected = "test_suffix"
+	if config.FunctionSuffix != expected {
+		t.Logf("Expected FunctionSuffix `%s` actual `%s`\n", expected, config.FunctionSuffix)
+		t.Fail()
+	}
+
+	if config.DebugPrintBody != true {
+		t.Logf("Expected DebugPrintBody `%v` actual `%v`\n", true, config.DebugPrintBody)
+		t.Fail()
+	}
+
+	if config.WriteDebug != true {
+		t.Logf("Expected WriteDebug `%v` actual `%v`\n", true, config.WriteDebug)
+		t.Fail()
+	}
+
+	expectedMaxInflight := 10
+	if config.MaxInflight != expectedMaxInflight {
+		t.Logf("Expected maxInflight `%v` actual `%v`\n", expectedMaxInflight, config.MaxInflight)
+		t.Fail()
+	}
+
+	expectedAckWait := time.Millisecond * 10
+	if config.AckWait != expectedAckWait {
+		t.Logf("Expected maxInflight `%v` actual `%v`\n", expectedAckWait, config.AckWait)
+		t.Fail()
+	}
+
+	os.Unsetenv("max_inflight")
+	os.Unsetenv("ack_wait")
+
+	config = readConfig.Read()
+
+	expectedMaxInflight = 1
+	if config.MaxInflight != expectedMaxInflight {
+		t.Logf("Expected maxInflight `%v` actual `%v`\n", expectedMaxInflight, config.MaxInflight)
+		t.Fail()
+	}
+
+	expectedAckWait = time.Second * 30
+	if config.AckWait != expectedAckWait {
+		t.Logf("Expected maxInflight `%v` actual `%v`\n", expectedAckWait, config.AckWait)
+		t.Fail()
+	}
+
+	os.Setenv("max_inflight", "10.00")
+	os.Setenv("ack_wait", "10")
+
+	config = readConfig.Read()
+
+	expectedMaxInflight = 1
+	if config.MaxInflight != expectedMaxInflight {
+		t.Logf("Expected maxInflight `%v` actual `%v`\n", expectedMaxInflight, config.MaxInflight)
+		t.Fail()
+	}
+
+	expectedAckWait = time.Second * 30
+	if config.AckWait != expectedAckWait {
+		t.Logf("Expected ackWait `%v` actual `%v`\n", expectedAckWait, config.AckWait)
+		t.Fail()
+	}
+}
				`@ -0,0 +1 @@`
				`redirect: https://raw.githubusercontent.com/openfaas/faas/master/.DEREK.yml`