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Send events from kubelet.

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Accept argument specifying file with kubernetes_auth file.
Make an api client in kubelet.
Send events to apiserver.
This commit is contained in:
Eric Tune 2014-11-10 16:13:17 -08:00
parent cb8ca2d341
commit 6430250ce8
1 changed files with 38 additions and 0 deletions
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38
cmd/kubelet/kubelet.go
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@ -32,7 +32,9 @@ import (
"time" "time"
"github.com/GoogleCloudPlatform/kubernetes/pkg/capabilities" "github.com/GoogleCloudPlatform/kubernetes/pkg/capabilities"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/record" "github.com/GoogleCloudPlatform/kubernetes/pkg/client/record"
"github.com/GoogleCloudPlatform/kubernetes/pkg/clientauth"
"github.com/GoogleCloudPlatform/kubernetes/pkg/health" "github.com/GoogleCloudPlatform/kubernetes/pkg/health"
_ "github.com/GoogleCloudPlatform/kubernetes/pkg/healthz" _ "github.com/GoogleCloudPlatform/kubernetes/pkg/healthz"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet" "github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet"
@ -70,11 +72,14 @@ var (
enableDebuggingHandlers = flag.Bool("enable_debugging_handlers", true, "Enables server endpoints for log collection and local running of containers and commands") enableDebuggingHandlers = flag.Bool("enable_debugging_handlers", true, "Enables server endpoints for log collection and local running of containers and commands")
minimumGCAge = flag.Duration("minimum_container_ttl_duration", 0, "Minimum age for a finished container before it is garbage collected. Examples: '300ms', '10s' or '2h45m'") minimumGCAge = flag.Duration("minimum_container_ttl_duration", 0, "Minimum age for a finished container before it is garbage collected. Examples: '300ms', '10s' or '2h45m'")
maxContainerCount = flag.Int("maximum_dead_containers_per_container", 5, "Maximum number of old instances of a container to retain per container. Each container takes up some disk space. Default: 5.") maxContainerCount = flag.Int("maximum_dead_containers_per_container", 5, "Maximum number of old instances of a container to retain per container. Each container takes up some disk space. Default: 5.")
authPath = flag.String("auth_path", "", "Path to .kubernetes_auth file, specifying how to authenticate to API server.")
apiServerList util.StringList
) )
func init() { func init() {
flag.Var(&etcdServerList, "etcd_servers", "List of etcd servers to watch (http://ip:port), comma separated. Mutually exclusive with -etcd_config") flag.Var(&etcdServerList, "etcd_servers", "List of etcd servers to watch (http://ip:port), comma separated. Mutually exclusive with -etcd_config")
flag.Var(&address, "address", "The IP address for the info server to serve on (set to 0.0.0.0 for all interfaces)") flag.Var(&address, "address", "The IP address for the info server to serve on (set to 0.0.0.0 for all interfaces)")
flag.Var(&apiServerList, "api_servers", "List of Kubernetes API servers to publish events to. (ip:port), comma separated.")
} }
func getDockerEndpoint() string { func getDockerEndpoint() string {
@ -126,6 +131,39 @@ func main() {
etcd.SetLogger(util.NewLogger("etcd ")) etcd.SetLogger(util.NewLogger("etcd "))
// Make an API client if possible.
var apiClient *client.Client = nil
if len(apiServerList) < 1 {
glog.Info("No api servers specified.")
} else {
authInfo, err := clientauth.LoadFromFile(*authPath)
if err != nil {
glog.Warningf("Not able to load auth config file: %v", err)
} else {
clientConfig, err := authInfo.MergeWithConfig(client.Config{})
if err != nil {
glog.Warningf("Not able to make client config: %v", err)
} else {
// TODO: adapt Kube client to support LB over several servers.
if len(apiServerList) > 1 {
glog.Infof("Mulitple api servers specified. Picking first one")
}
clientConfig.Host = apiServerList[0]
if c, err := client.New(&clientConfig); err != nil {
glog.Warningf("No API client configured: %v", err)
} else {
apiClient = c
glog.Infof("API Client created.")
}
}
}
}
// Send events to APIserver if there is a client.
if apiClient != nil {
glog.Infof("Sending events to APIserver.")
record.StartRecording(apiClient.Events(""), "kubelet")
}
// Log the events locally too. // Log the events locally too.
record.StartLogging(glog.Infof) record.StartLogging(glog.Infof)