CB-3928 Store pillar as json instead of yaml

Author: lacikaaa

saltboot/salt.go

@@ -305,8 +305,9 @@ func writePillarImpl(pillar SaltPillar, basePath string) (outStr string, err err
 		return "Failed to create dir " + dir, err
 	}
 
-	yml, _ := yaml.Marshal(pillar.Json)
-	err = ioutil.WriteFile(file, yml, 0644)
+	jsonDef := []byte("#!json\n")
+	jsn, _ := json.MarshalIndent(pillar.Json, "", "\t")
+	err = ioutil.WriteFile(file, append(jsonDef,jsn...), 0644)
 	if err != nil {
 		return "Failed to write to " + file, err
 	}

saltboot/salt_test.go

@@ -217,7 +217,7 @@ func TestWritePillar(t *testing.T) {
 		t.Errorf("error occurred during write %s", err)
 	}
 
-	expected := "key: value\n"
+	expected := "#!json\n{\n\t\"key\": \"value\"\n}"
 	content, _ := ioutil.ReadFile(tempDirName + "/srv/pillar" + pillar.Path)
 	if string(content) != expected {
 		t.Errorf("yml content not match %s == %s", expected, string(content))