fix: switch back to replacing <recipe>.example.com

Fixes #355

pkg/config/app.go

@@ -2,7 +2,6 @@ package config
 
 import (
 	"fmt"
-	"html/template"
 	"io/ioutil"
 	"os"
 	"path"
@@ -321,25 +320,16 @@ func TemplateAppEnvSample(recipeName, appName, server, domain string) error {
 		return err
 	}
 
-	file, err := os.OpenFile(appEnvPath, os.O_RDWR, 0664)
-	if err != nil {
-		return err
-	}
-	defer file.Close()
-
-	tpl, err := template.ParseFiles(appEnvPath)
+	read, err := ioutil.ReadFile(appEnvPath)
 	if err != nil {
 		return err
 	}
 
-	type templateVars struct {
-		Name   string
-		Domain string
-	}
+	newContents := strings.Replace(string(read), recipeName+".example.com", domain, -1)
 
-	tvars := templateVars{Name: recipeName, Domain: domain}
-	if err := tpl.Execute(file, tvars); err != nil {
-		return err
+	err = ioutil.WriteFile(appEnvPath, []byte(newContents), 0)
+	if err != nil {
+		panic(err)
 	}
 
 	logrus.Debugf("copied & templated %s to %s", envSamplePath, appEnvPath)