cmd/proxy/proxy.go

package proxy

import (
	"fmt"
	"net"
	"os"

	"github.com/spf13/cobra"

	"gitlab.com/gitlab-org/step-runner/cmd"
	"gitlab.com/gitlab-org/step-runner/pkg/api"
	proxyapi "gitlab.com/gitlab-org/step-runner/pkg/api/proxy"
)

func NewCmd() *cobra.Command {
	return &cobra.Command{
		Use:         "proxy",
		Short:       "Tunnel gRPC requests/responses from stdin/stdout to the service listening on a local socket",
		Annotations: cmd.SuppressWelcomeCmdAnnotation,
		Args:        cobra.ExactArgs(0),
		RunE:        run,
	}
}

func run(cmd *cobra.Command, args []string) error {
	conn, err := net.DialUnix("unix", nil, api.SocketAddr(api.DefaultSocketPath()))
	if err != nil {
		return fmt.Errorf("dialing: %w", err)
	}
	return proxyapi.Proxy(os.Stdin, os.Stdout, conn)
}