Refactor #843

Code-review/refactoring for #843. Closes #843.

FaaSHandlers has had info and query handlers added to its list
of types for consistency.

Secrets added to queue-worker component ready for next PR.

Signed-off-by: Alex Ellis (VMware) <alexellis2@gmail.com>

docker-compose.armhf.yml

@@ -89,6 +89,8 @@ services:
         environment:
             max_inflight: "1"
             ack_wait: "30s"    # Max duration of any async task / request
+            basic_auth: "false"
+            secret_mount_path: "/run/secrets/"
         deploy:
             resources:
                 limits:

docker-compose.yml

@@ -93,6 +93,8 @@ services:
         environment:
             max_inflight: "1"
             ack_wait: "300s"    # Max duration of any async task / request
+            basic_auth: "${BASIC_AUTH:-true}"
+            secret_mount_path: "/run/secrets/"
         deploy:
             resources:
                 limits:
@@ -107,6 +109,10 @@ services:
             placement:
                 constraints:
                     - 'node.platform.os == linux'
+        secrets:
+            - basic-auth-user
+            - basic-auth-password
+
     # End services
 
     # Start monitoring

gateway/Makefile

@@ -0,0 +1,6 @@
+.PHONY: all build
+TAG?=latest
+
+all:	build
+build:
+	./build.sh ${TAG}

gateway/server.go

@@ -1,5 +1,4 @@
 // Copyright (c) Alex Ellis 2017. All rights reserved.
-// Copyright (c) OpenFaaS Author(s). All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
 package main
@@ -85,13 +84,12 @@ func main() {
 	faasHandlers.DeployFunction = handlers.MakeForwardingProxyHandler(reverseProxy, forwardingNotifiers, urlResolver, nilURLTransformer)
 	faasHandlers.DeleteFunction = handlers.MakeForwardingProxyHandler(reverseProxy, forwardingNotifiers, urlResolver, nilURLTransformer)
 	faasHandlers.UpdateFunction = handlers.MakeForwardingProxyHandler(reverseProxy, forwardingNotifiers, urlResolver, nilURLTransformer)
-	queryFunction := handlers.MakeForwardingProxyHandler(reverseProxy, forwardingNotifiers, urlResolver, nilURLTransformer)
+	faasHandlers.QueryFunction = handlers.MakeForwardingProxyHandler(reverseProxy, forwardingNotifiers, urlResolver, nilURLTransformer)
+	faasHandlers.InfoHandler = handlers.MakeInfoHandler(handlers.MakeForwardingProxyHandler(reverseProxy, forwardingNotifiers, urlResolver, nilURLTransformer))
 
 	alertHandler := plugin.NewExternalServiceQuery(*config.FunctionsProviderURL)
 	faasHandlers.Alert = handlers.MakeAlertHandler(alertHandler)
 
-	infoHandler := handlers.MakeInfoHandler(handlers.MakeForwardingProxyHandler(reverseProxy, forwardingNotifiers, urlResolver, nilURLTransformer))
-
 	if config.UseNATS() {
 		log.Println("Async enabled: Using NATS Streaming.")
 		natsQueue, queueErr := natsHandler.CreateNatsQueue(*config.NATSAddress, *config.NATSPort, natsHandler.DefaultNatsConfig{})
@@ -120,8 +118,8 @@ func main() {
 			handlers.DecorateWithBasicAuth(faasHandlers.ListFunctions, credentials)
 		faasHandlers.ScaleFunction =
 			handlers.DecorateWithBasicAuth(faasHandlers.ScaleFunction, credentials)
-		infoHandler = handlers.DecorateWithBasicAuth(infoHandler, credentials)
-		queryFunction = handlers.DecorateWithBasicAuth(queryFunction, credentials)
+		faasHandlers.QueryFunction = handlers.DecorateWithBasicAuth(faasHandlers.QueryFunction, credentials)
+		faasHandlers.InfoHandler = handlers.DecorateWithBasicAuth(faasHandlers.InfoHandler, credentials)
 	}
 
 	r := mux.NewRouter()
@@ -137,17 +135,17 @@ func main() {
 			ServiceQuery:         alertHandler,
 		}
 
-		functionProxy = handlers.MakeScalingHandler(faasHandlers.Proxy, queryFunction, scalingConfig)
+		functionProxy = handlers.MakeScalingHandler(faasHandlers.Proxy, faasHandlers.QueryFunction, scalingConfig)
 	}
 	// r.StrictSlash(false)	// This didn't work, so register routes twice.
 	r.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}", functionProxy)
 	r.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}/", functionProxy)
 	r.HandleFunc("/function/{name:[-a-zA-Z_0-9]+}/{params:.*}", functionProxy)
 
-	r.HandleFunc("/system/info", infoHandler).Methods(http.MethodGet)
-	r.HandleFunc("/system/alert", faasHandlers.Alert)
+	r.HandleFunc("/system/info", faasHandlers.InfoHandler).Methods(http.MethodGet)
+	r.HandleFunc("/system/alert", faasHandlers.Alert).Methods(http.MethodPost)
 
-	r.HandleFunc("/system/function/{name:[-a-zA-Z_0-9]+}", queryFunction).Methods(http.MethodGet)
+	r.HandleFunc("/system/function/{name:[-a-zA-Z_0-9]+}", faasHandlers.QueryFunction).Methods(http.MethodGet)
 	r.HandleFunc("/system/functions", faasHandlers.ListFunctions).Methods(http.MethodGet)
 	r.HandleFunc("/system/functions", faasHandlers.DeployFunction).Methods(http.MethodPost)
 	r.HandleFunc("/system/functions", faasHandlers.DeleteFunction).Methods(http.MethodDelete)

gateway/types/handler_set.go

@@ -12,6 +12,9 @@ type HandlerSet struct {
 	RoutelessProxy http.HandlerFunc
 	UpdateFunction http.HandlerFunc
 
+	// QueryFunction - queries the metdata for a function
+	QueryFunction http.HandlerFunc
+
 	// QueuedProxy - queue work and return synchronous response
 	QueuedProxy http.HandlerFunc
 
@@ -20,4 +23,7 @@ type HandlerSet struct {
 
 	// ScaleFunction allows a function to be scaled
 	ScaleFunction http.HandlerFunc
+
+	// InfoHandler provides version and build info
+	InfoHandler http.HandlerFunc
 }