1d8067450c
This avoids some conflict with the built-in `flag` module in Go. The module was already being renamed to `verflag` on import anyways, so we might as well just call it that. Tested: - hack/build-go.sh and ran the resulting binaries with -version args. Signed-off-by: Filipe Brandenburger <filbranden@google.com>
96 lines
2.8 KiB
Go
96 lines
2.8 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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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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package main
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import (
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"flag"
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"time"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/proxy"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/proxy/config"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/version/verflag"
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"github.com/coreos/go-etcd/etcd"
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"github.com/golang/glog"
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)
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var (
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configFile = flag.String("configfile", "/tmp/proxy_config", "Configuration file for the proxy")
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master = flag.String("master", "", "The address of the Kubernetes API server (optional)")
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etcdServerList util.StringList
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)
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func init() {
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flag.Var(&etcdServerList, "etcd_servers", "List of etcd servers to watch (http://ip:port), comma separated (optional)")
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}
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func main() {
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flag.Parse()
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util.InitLogs()
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defer util.FlushLogs()
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verflag.PrintAndExitIfRequested()
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serviceConfig := config.NewServiceConfig()
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endpointsConfig := config.NewEndpointsConfig()
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// define api config source
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if *master != "" {
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glog.Infof("Using api calls to get config %v", *master)
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//TODO: add auth info
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client, err := client.New(*master, nil)
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if err != nil {
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glog.Fatalf("Invalid -master: %v", err)
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}
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config.NewSourceAPI(
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client,
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30*time.Second,
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serviceConfig.Channel("api"),
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endpointsConfig.Channel("api"),
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)
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}
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// Create a configuration source that handles configuration from etcd.
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if len(etcdServerList) > 0 && *master == "" {
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glog.Infof("Using etcd servers %v", etcdServerList)
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// Set up logger for etcd client
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etcd.SetLogger(util.NewLogger("etcd "))
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etcdClient := etcd.NewClient(etcdServerList)
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config.NewConfigSourceEtcd(etcdClient,
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serviceConfig.Channel("etcd"),
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endpointsConfig.Channel("etcd"))
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}
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// And create a configuration source that reads from a local file
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config.NewConfigSourceFile(*configFile,
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serviceConfig.Channel("file"),
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endpointsConfig.Channel("file"))
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glog.Infof("Using configuration file %s", *configFile)
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loadBalancer := proxy.NewLoadBalancerRR()
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proxier := proxy.NewProxier(loadBalancer)
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// Wire proxier to handle changes to services
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serviceConfig.RegisterHandler(proxier)
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// And wire loadBalancer to handle changes to endpoints to services
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endpointsConfig.RegisterHandler(loadBalancer)
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// Just loop forever for now...
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select {}
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}
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