331fd0d986
because it causes a runtime panic if a binary which has its own implementation of "-version" flag tries to reuse a package library which indirectly depend on "pkg/version". e.g. If such an user-defined binary tires to link "pkg/api" or "pkg/client", the binary fails with a runtime panic "flag redefined: version".
119 lines
4.0 KiB
Go
119 lines
4.0 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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// apiserver is the main api server and master for the cluster.
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// it is responsible for serving the cluster management API.
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package main
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import (
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"flag"
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"net"
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"net/http"
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"strconv"
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"time"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/cloudprovider"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/master"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
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verflag "github.com/GoogleCloudPlatform/kubernetes/pkg/version/flag"
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"github.com/golang/glog"
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)
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var (
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port = flag.Uint("port", 8080, "The port to listen on. Default 8080.")
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address = flag.String("address", "127.0.0.1", "The address on the local server to listen to. Default 127.0.0.1")
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apiPrefix = flag.String("api_prefix", "/api/v1beta1", "The prefix for API requests on the server. Default '/api/v1beta1'")
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cloudProvider = flag.String("cloud_provider", "", "The provider for cloud services. Empty string for no provider.")
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minionRegexp = flag.String("minion_regexp", "", "If non empty, and -cloud_provider is specified, a regular expression for matching minion VMs")
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minionPort = flag.Uint("minion_port", 10250, "The port at which kubelet will be listening on the minions.")
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healthCheckMinions = flag.Bool("health_check_minions", true, "If true, health check minions and filter unhealthy ones. [default true]")
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minionCacheTTL = flag.Duration("minion_cache_ttl", 30*time.Second, "Duration of time to cache minion information. [default 30 seconds]")
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etcdServerList, machineList 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")
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flag.Var(&machineList, "machines", "List of machines to schedule onto, comma separated.")
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}
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func verifyMinionFlags() {
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if *cloudProvider == "" || *minionRegexp == "" {
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if len(machineList) == 0 {
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glog.Fatal("No machines specified!")
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}
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return
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}
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if len(machineList) != 0 {
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glog.Info("-machines is overwritten by -minion_regexp")
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}
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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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verifyMinionFlags()
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var cloud cloudprovider.Interface
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switch *cloudProvider {
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case "gce":
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var err error
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cloud, err = cloudprovider.NewGCECloud()
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if err != nil {
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glog.Fatalf("Couldn't connect to GCE cloud: %#v", err)
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}
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default:
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if len(*cloudProvider) > 0 {
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glog.Infof("Unknown cloud provider: %s", *cloudProvider)
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} else {
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glog.Info("No cloud provider specified.")
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}
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}
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podInfoGetter := &client.HTTPPodInfoGetter{
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Client: http.DefaultClient,
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Port: *minionPort,
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}
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client := client.New("http://"+net.JoinHostPort(*address, strconv.Itoa(int(*port))), nil)
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var m *master.Master
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if len(etcdServerList) > 0 {
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m = master.New(&master.Config{
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Client: client,
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Cloud: cloud,
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EtcdServers: etcdServerList,
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HealthCheckMinions: *healthCheckMinions,
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Minions: machineList,
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MinionCacheTTL: *minionCacheTTL,
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MinionRegexp: *minionRegexp,
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PodInfoGetter: podInfoGetter,
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})
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} else {
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m = master.NewMemoryServer(&master.Config{
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Client: client,
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Cloud: cloud,
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Minions: machineList,
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PodInfoGetter: podInfoGetter,
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})
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}
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glog.Fatal(m.Run(net.JoinHostPort(*address, strconv.Itoa(int(*port))), *apiPrefix))
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}
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