J. Gavin Ray
943d430870
# This is the 1st commit message: Changed package names to match the new organization # This is the commit message #2: Forgot Cache
82 lines
2.3 KiB
Go
82 lines
2.3 KiB
Go
/*
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Copyright 2016 The Fission Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/*
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This is the Fission Router package.
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Its job is to:
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1. Keep track of HTTP triggers and their mappings to functions
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Use the controller API to get and watch this state.
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2. Given a function, get a reference to a routable function run service
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Use the ContainerPoolManager API to get a service backed by one
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or more function run containers. The container(s) backing the
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service may be newly created, or they might be reused. The only
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requirement is that one or more containers backs the service.
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3. Forward the request to the service, and send the response back.
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Plain ol HTTP.
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*/
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package router
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import (
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"fmt"
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"log"
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"net/http"
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"os"
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"time"
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"github.com/gorilla/handlers"
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"github.com/gorilla/mux"
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controllerClient "github.com/fission/fission/controller/client"
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poolmgrClient "github.com/fission/fission/poolmgr/client"
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)
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// request url ---[mux]---> Function(name,uid) ----[fmap]----> k8s service url
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// request url ---[trigger]---> Function(name, deployment) ----[deployment]----> Function(name, uid) ----[pool mgr]---> k8s service url
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func router(httpTriggerSet *HTTPTriggerSet) *mutableRouter {
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muxRouter := mux.NewRouter()
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mr := NewMutableRouter(muxRouter)
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httpTriggerSet.subscribeRouter(mr)
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return mr
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}
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func serve(port int, httpTriggerSet *HTTPTriggerSet) {
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mr := router(httpTriggerSet)
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url := fmt.Sprintf(":%v", port)
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http.ListenAndServe(url, handlers.LoggingHandler(os.Stdout, mr))
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}
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func Start(port int, controllerUrl string, poolmgrUrl string) {
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fmap := makeFunctionServiceMap(time.Minute)
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controller := controllerClient.MakeClient(controllerUrl)
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poolmgr := poolmgrClient.MakeClient(poolmgrUrl)
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triggers := makeHTTPTriggerSet(fmap, controller, poolmgr)
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log.Printf("Starting router at port %v\n", port)
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serve(port, triggers)
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}
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