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server.go
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server.go
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// Copyright (c) 2022 Fujitsu Limited
package app
import (
"fmt"
"os"
"github.com/spf13/cobra"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/tools/clientcmd"
"github.com/FujitsuResearch/data-sharing-controllers-on-k8s/cmd/volume-controller/app/options"
"github.com/FujitsuResearch/data-sharing-controllers-on-k8s/pkg/controller/volume"
"github.com/FujitsuResearch/data-sharing-controllers-on-k8s/pkg/util"
)
func run(usageOptions *options.VolumeControllerOptions) error {
consumerConfig, err := clientcmd.BuildConfigFromFlags(
usageOptions.ConsumerApiServerUrl, usageOptions.ConsumerKubeConfig)
if err != nil {
return fmt.Errorf(
"Error building kubeconfig for a data consumer: %v", err.Error())
}
kubeClient, err := kubernetes.NewForConfig(consumerConfig)
if err != nil {
return fmt.Errorf(
"Error building kubernetes clientset: %v", err.Error())
}
stopCh := util.SetupSignalHandler()
ucontroller, err := volume.NewVolumeController(
usageOptions.FuseConfig, usageOptions.VolumeConfig,
usageOptions.ContainerRuntimeConfig, kubeClient, stopCh)
if err != nil {
return err
}
ucontroller.Run(usageOptions.GrpcServerEndpoint)
return nil
}
func NewVolumeControllerCommand() *cobra.Command {
opts := options.NewVolumeControllerOptions()
cmd := &cobra.Command{
Use: "shadowy-usage-controller",
Long: `the shadowy usage controller prevents untrusted programs from ` +
`manipulating provided data.`,
Run: func(cmd *cobra.Command, args []string) {
util.PrintFlags(cmd.Flags())
if err := options.ValidateVolumeControllerFlags(opts); err != nil {
fmt.Fprintf(os.Stderr, "Error: %v\n", err.Error())
os.Exit(1)
}
if err := run(opts); err != nil {
fmt.Fprintf(os.Stderr, "Error: %v\n", err.Error())
os.Exit(1)
}
},
}
opts.AddFlags(cmd.Flags())
return cmd
}