linkerd2/cli/cmd/root.go

56 lines
2.0 KiB
Go

package cmd
import (
"os"
"github.com/runconduit/conduit/controller/api/public"
pb "github.com/runconduit/conduit/controller/gen/public"
"github.com/runconduit/conduit/pkg/k8s"
"github.com/spf13/cobra"
)
var cfgFile string
var controlPlaneNamespace string
var apiAddr string // An empty value means "use the Kubernetes configuration"
var kubeconfigPath string
var RootCmd = &cobra.Command{
Use: "conduit",
Short: "conduit manages the Conduit service mesh",
Long: `conduit manages the Conduit service mesh.`,
}
func init() {
RootCmd.PersistentFlags().StringVarP(&controlPlaneNamespace, "conduit-namespace", "n", "conduit", "namespace in which Conduit is installed")
}
// TODO: decide if we want to use viper
func addControlPlaneNetworkingArgs(cmd *cobra.Command) {
// Use the same argument name as `kubectl` (see the output of `kubectl options`).
cmd.PersistentFlags().StringVar(&kubeconfigPath, "kubeconfig", "", "Path to the kubeconfig file to use for CLI requests")
cmd.PersistentFlags().StringVar(&apiAddr, "api-addr", "", "Override kubeconfig and communicate directly with the control plane at host:port (mostly for testing)")
}
func newApiClient(kubeApi k8s.KubernetesApi) (pb.ApiClient, error) {
return public.NewExternalClient(controlPlaneNamespace, kubeApi)
}
// Exit with non-zero exit status without printing the command line usage and
// without printing the error message.
//
// When a `RunE` command returns an error, Cobra will print the usage message
// so the `RunE` function needs to handle any non-usage errors itself without
// returning an error. `exitSilentlyOnError` can be used as the `Run` (not
// `RunE`) function to help with this.
//
// TODO: This is used by the `version` command now; it should be used by other commands too.
func exitSilentlyOnError(f func(cmd *cobra.Command, args []string) error) func(cmd *cobra.Command, args []string) {
return func(cmd *cobra.Command, args []string) {
if err := f(cmd, args); err != nil {
os.Exit(2) // Reserve 1 for usage errors.
}
}
}