func (c *CheckHAProxyTemplateFileExists) Check(config configuration.Configuration) (bool, error) {
exists := util.FileExists(config.HAProxy.TemplatePath)
if exists {
return true, nil
}
return false, fmt.Errorf("HAProxy Template file at %s : does not exist.", config.HAProxy.TemplatePath)
}
func renderTemplate(details *types.MasterDetailsCollection, outputPath string, templatepath string) (bool, error) {
logger.Info.Printf("Details %s", util.String(details.Items()))
renderedTemplate, err := template.RenderTemplate(templatepath, details)
if err != nil {
logger.Error.Printf("Error rendering tempate at %s.", templatepath)
return false, err
}
if util.FileExists(outputPath) {
newFileHash := util.HashString(renderedTemplate)
oldFileHash, err := util.HashFile(outputPath)
if err != nil {
logger.Error.Printf("Error hashing existing HAProxy config file at %s.", outputPath)
return false, err
}
if newFileHash == oldFileHash {
logger.NoteWorthy.Printf("Existing config file up todate. New file hash : %s == Old file hash %s. Nothing to do.", newFileHash, oldFileHash)
return true, nil
}
logger.Info.Printf("Updating config file. New file hash : %s != Old file hash %s", newFileHash, oldFileHash)
}
err = util.WriteFile(outputPath, renderedTemplate)
if err != nil {
logger.Error.Printf("Error writing file to %s : %s\n", outputPath, err.Error())
return false, err
}
return true, nil
}