/
cmd.go
137 lines (115 loc) · 4.18 KB
/
cmd.go
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package openshift_network_controller
import (
"errors"
"fmt"
"io"
"io/ioutil"
"os"
"path"
"github.com/openshift/origin/pkg/cmd/openshift-controller-manager/configdefault"
"k8s.io/client-go/rest"
"github.com/coreos/go-systemd/daemon"
"github.com/spf13/cobra"
"k8s.io/klog"
kerrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
"k8s.io/client-go/tools/clientcmd/api"
kcmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
"k8s.io/kubernetes/pkg/kubectl/util/templates"
configv1 "github.com/openshift/api/config/v1"
openshiftcontrolplanev1 "github.com/openshift/api/openshiftcontrolplane/v1"
"github.com/openshift/library-go/pkg/config/helpers"
"github.com/openshift/library-go/pkg/serviceability"
"github.com/openshift/origin/pkg/configconversion"
)
const RecommendedStartNetworkControllerName = "openshift-network-controller"
type OpenShiftNetworkController struct {
ConfigFilePath string
Output io.Writer
}
var longDescription = templates.LongDesc(`
Start the OpenShift SDN controller`)
func NewOpenShiftNetworkControllerCommand(name, basename string, out, errout io.Writer) *cobra.Command {
options := &OpenShiftNetworkController{Output: out}
cmd := &cobra.Command{
Use: name,
Short: "Start the OpenShift SDN controller",
Long: longDescription,
Run: func(c *cobra.Command, args []string) {
rest.CommandNameOverride = name
kcmdutil.CheckErr(options.Validate())
serviceability.StartProfiler()
if err := options.StartNetworkController(); err != nil {
if kerrors.IsInvalid(err) {
if details := err.(*kerrors.StatusError).ErrStatus.Details; details != nil {
fmt.Fprintf(errout, "Invalid %s %s\n", details.Kind, details.Name)
for _, cause := range details.Causes {
fmt.Fprintf(errout, " %s: %s\n", cause.Field, cause.Message)
}
os.Exit(255)
}
}
klog.Fatal(err)
}
},
}
flags := cmd.Flags()
// This command only supports reading from config
flags.StringVar(&options.ConfigFilePath, "config", options.ConfigFilePath, "Location of the master configuration file to run from.")
cmd.MarkFlagFilename("config", "yaml", "yml")
cmd.MarkFlagRequired("config")
return cmd
}
func (o *OpenShiftNetworkController) Validate() error {
if len(o.ConfigFilePath) == 0 {
return errors.New("--config is required for this command")
}
return nil
}
// StartNetworkController calls RunNetworkController and then waits forever
func (o *OpenShiftNetworkController) StartNetworkController() error {
if err := o.RunNetworkController(); err != nil {
return err
}
go daemon.SdNotify(false, "READY=1")
select {}
}
// RunNetworkController takes the options and starts the network controller
func (o *OpenShiftNetworkController) RunNetworkController() error {
// try to decode into our new types first. right now there is no validation, no file path resolution. this unsticks the operator to start.
// TODO add those things
configContent, err := ioutil.ReadFile(o.ConfigFilePath)
if err != nil {
return err
}
scheme := runtime.NewScheme()
utilruntime.Must(openshiftcontrolplanev1.Install(scheme))
codecs := serializer.NewCodecFactory(scheme)
obj, err := runtime.Decode(codecs.UniversalDecoder(openshiftcontrolplanev1.GroupVersion, configv1.GroupVersion), configContent)
if err != nil {
return err
}
// Resolve relative to CWD
absoluteConfigFile, err := api.MakeAbs(o.ConfigFilePath, "")
if err != nil {
return err
}
configFileLocation := path.Dir(absoluteConfigFile)
config := obj.(*openshiftcontrolplanev1.OpenShiftControllerManagerConfig)
/// this isn't allowed to be nil when by itself.
// TODO remove this when the old path is gone.
if config.ServingInfo == nil {
config.ServingInfo = &configv1.HTTPServingInfo{}
}
if err := helpers.ResolvePaths(configconversion.GetOpenShiftControllerConfigFileReferences(config), configFileLocation); err != nil {
return err
}
configdefault.SetRecommendedOpenShiftControllerConfigDefaults(config)
clientConfig, err := helpers.GetKubeClientConfig(config.KubeClientConfig)
if err != nil {
return err
}
return RunOpenShiftNetworkController(config, clientConfig)
}