109 lines
3.3 KiB
Go
109 lines
3.3 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package main
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import (
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"flag"
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"fmt"
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"log"
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"net/http"
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"github.com/google/cadvisor/api"
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"github.com/google/cadvisor/container/docker"
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"github.com/google/cadvisor/container/lmctfy"
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"github.com/google/cadvisor/info"
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"github.com/google/cadvisor/manager"
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"github.com/google/cadvisor/pages"
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"github.com/google/cadvisor/pages/static"
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)
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var argPort = flag.Int("port", 8080, "port to listen")
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var argAllowLmctfy = flag.Bool("allow_lmctfy", true, "whether to allow lmctfy as a container handler")
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var argDbDriver = flag.String("storage_driver", "memory", "storage driver to use. Options are: memory (default) and influxdb")
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func main() {
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flag.Parse()
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storageDriver, err := NewStorageDriver(*argDbDriver)
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if err != nil {
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log.Fatalf("Failed to connect to database: %s", err)
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}
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containerManager, err := manager.New(storageDriver)
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if err != nil {
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log.Fatalf("Failed to create a Container Manager: %s", err)
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}
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// Register lmctfy for the root if allowed and available.
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registeredRoot := false
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if *argAllowLmctfy {
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if err := lmctfy.Register("/"); err != nil {
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log.Printf("lmctfy registration failed: %v.", err)
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log.Print("Running in docker only mode.")
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}
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}
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// Register Docker for root if we were unable to register lmctfy.
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if !registeredRoot {
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if err := docker.Register(containerManager, "/"); err != nil {
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log.Printf("Docker registration failed: %v.", err)
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log.Fatalf("Unable to continue without root handler.")
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}
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}
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// Register Docker for all Docker containers.
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if err := docker.Register(containerManager, "/docker"); err != nil {
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// Ignore this error because we should work with lmctfy only
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log.Printf("Docker registration failed: %v.", err)
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log.Print("Running in lmctfy only mode.")
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}
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// Handler for static content.
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http.HandleFunc(static.StaticResource, func(w http.ResponseWriter, r *http.Request) {
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err := static.HandleRequest(w, r.URL)
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if err != nil {
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fmt.Fprintf(w, "%s", err)
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}
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})
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// Handler for the API.
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http.HandleFunc(api.ApiResource, func(w http.ResponseWriter, r *http.Request) {
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err := api.HandleRequest(containerManager, w, r)
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if err != nil {
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fmt.Fprintf(w, "%s", err)
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}
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})
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// Redirect / to containers page.
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http.Handle("/", http.RedirectHandler(pages.ContainersPage, http.StatusTemporaryRedirect))
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// Register the handler for the containers page.
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http.HandleFunc(pages.ContainersPage, func(w http.ResponseWriter, r *http.Request) {
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err := pages.ServerContainersPage(containerManager, w, r.URL)
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if err != nil {
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fmt.Fprintf(w, "%s", err)
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}
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})
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go containerManager.Start()
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log.Printf("Starting cAdvisor version: %q", info.VERSION)
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log.Print("About to serve on port ", *argPort)
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addr := fmt.Sprintf(":%v", *argPort)
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log.Fatal(http.ListenAndServe(addr, nil))
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}
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