workDirReplacer := strings.NewReplacer("$HST_DIR", workDir)
volDirReplacer := strings.NewReplacer("$HST_VOLUME_DIR", workingVolumeDir)
for _, volu := range yamlInput["volumes"].([]interface{}) {
workDirReplacer := strings.NewReplacer("$HST_DIR", workDir)
volDirReplacer := strings.NewReplacer("$HST_VOLUME_DIR", workingVolumeDir)
for _, volu := range yamlInput["volumes"].([]interface{}) {