Merge pull request #8799 from carlpett/proxmox/validate-template-name

proxmox: template_name cannot contain spaces

builder/proxmox/config.go

@@ -8,6 +8,7 @@ import (
 	"log"
 	"net/url"
 	"os"
+	"strings"
 	"time"
 
 	"github.com/hashicorp/packer/common"
@@ -213,6 +214,9 @@ func (c *Config) Prepare(raws ...interface{}) ([]string, error) {
 	if c.Node == "" {
 		errs = packer.MultiErrorAppend(errs, errors.New("node must be specified"))
 	}
+	if strings.ContainsAny(c.TemplateName, " ") {
+		errs = packer.MultiErrorAppend(errs, errors.New("template_name must not contain spaces"))
+	}
 	for idx := range c.NICs {
 		if c.NICs[idx].Bridge == "" {
 			errs = packer.MultiErrorAppend(errs, errors.New(fmt.Sprintf("network_adapters[%d].bridge must be specified", idx)))