Merge pull request #3 from Luap99/fix-ports

Fix using the plugin without ports

.gitignore

@@ -0,0 +1 @@
+bin/*

plugins/meta/podman-machine/main.go

@@ -43,7 +43,8 @@ func cmdAdd(args *skel.CmdArgs) error {
 	}
 	// No portmappings, do nothing
 	if len(portMaps.RuntimeConfig.PortMaps) < 1 {
-		return nil
+		// Have to do this for chained plugins, which this is
+		return types.PrintResult(portMaps.PrevResult, portMaps.CNIVersion)
 	}
 	// Iterate and send requests to the server
 	for _, pm := range portMaps.RuntimeConfig.PortMaps {

plugins/meta/podman-machine/restful.go

@@ -5,7 +5,9 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"fmt"
 	"io"
+	"io/ioutil"
 	"net"
 	"net/http"
 	"net/url"
@@ -50,7 +52,11 @@ func postRequest(ctx context.Context, url *url.URL, body interface{}) error {
 		return err
 	}
 	if resp.StatusCode != http.StatusOK {
-		return errors.New("something went wrong with the request")
+		b, err := ioutil.ReadAll(resp.Body)
+		if err == nil && len(b) > 0 {
+			return fmt.Errorf("something went wrong with the request: %q", string(b))
+		}
+		return errors.New("something went wrong with the request, could not read response")
 	}
 	return nil
 }