Billionmail/BillionMail · error

failed to update Postfix configurations: %v

Error message

failed to update Postfix configurations: %v

What it means

applyConfigs step 2: regenerate Postfix main.cf/master.cf multi-ip entries via updatePostfixConfigs. On failure the error is wrapped with this prefix; ApplyConfigsWithRollback then rolls back from the backups created earlier. This is a wrapper — diagnose the inner updatePostfixConfigs error.

Source

Thrown at core/internal/service/multi_ip_domain/config_manager.go:149

	for _, backup := range backups {
		if gfile.Exists(backup) {
			g.Log().Debugf(ctx, "Cleaning up backup file: %s", backup)
			_ = os.Remove(backup)
		}
	}
}

// applyConfigs Apply configurations
func (m *ConfigManager) applyConfigs(ctx context.Context, configs []map[string]interface{}) error {
	// 1. Update docker-compose.yml
	if err := m.updateDockerCompose(ctx, configs); err != nil {

		return fmt.Errorf("failed to update docker-compose.yml: %v", err)
	}

	// 2. Update Postfix configurations
	if err := m.updatePostfixConfigs(ctx, configs); err != nil {
		return fmt.Errorf("failed to update Postfix configurations: %v", err)
	}

	return nil
}

// updateDockerCompose Generate docker-compose_addnetwork.yml
func (m *ConfigManager) updateDockerCompose(ctx context.Context, configs []map[string]interface{}) error {
	originalPath := filepath.Join(public.HostWorkDir, "docker-compose.yml")
	outputPath := filepath.Join(public.HostWorkDir, "docker-compose_addnetwork.yml")

	// 设置临时文件路径
	// 容器内路径：/opt/billionmail/core/data (通过 public.AbsPath 获取)
	// 宿主机路径：./core-data (相对于 docker-compose.yml 所在目录)
	containerDataPath := public.AbsPath("../core/data/")
	hostDataPath := filepath.Join(public.HostWorkDir, "core-data") // 宿主机的实际映射路径
	tempDockerComposePath := filepath.Join(containerDataPath, "temp_docker-compose.yml")
	hostTempDockerComposePath := filepath.Join(hostDataPath, "temp_docker-compose.yml")

View on GitHub (pinned to fc36c76c05)

Solutions

1. Unwrap the inner error to find the exact failing write or parse step.
2. Validate each entry in configs (IP format via net.ParseIP, unique hostname/IP) before calling ApplyConfigsWithRollback.
3. Restore conf/postfix from the .backup.<nano> files if rollback did not succeed, then fix inputs and retry.
4. Check conf/postfix file permissions and that the marker blocks (# BEGIN/END BILLIONMAIL multi-ip services) are intact.

Example fix

// before
for _, c := range configs {
    ip := gconv.String(c["ip"])
    _ = ip
}
// after
for _, c := range configs {
    ip := gconv.String(c["ip"])
    if net.ParseIP(ip) == nil {
        return fmt.Errorf("invalid IP in config: %q", ip)
    }
}

for _, c := range configs {
	ip, _ := c["ip"].(string)
	if net.ParseIP(ip) == nil {
		return fmt.Errorf("invalid ip in config: %q", ip)
	}
}
for _, f := range []string{multi_ip_domain.PostfixMainCfPath, multi_ip_domain.PostfixMasterCfPath} {
	if _, err := os.Stat(f); err != nil {
		return fmt.Errorf("postfix config missing: %v", err)
	}
}

if err := mgr.ApplyConfigsWithRollback(ctx, configs); err != nil {
	if strings.Contains(err.Error(), "failed to update Postfix configurations") {
		// rollback already ran; validate postfix configs and fix inputs before retry
	}
}

When it happens

Trigger: updatePostfixConfigs returns an error: template render failure, master.cf/main.cf write failure, or invalid entries derived from the configs slice (missing IP/bad hostname format).

Common situations: Config payload contains an invalid IP or duplicate service entry that fails to render into master.cf; conf/postfix files made read-only; concurrent external edit invalidating the marker-block structure.

Related errors

• failed to update postfix master config: %v
• failed to update docker-compose.yml: %v
• DNS automated resolution failed: ClientID, ClientSecret or T
• DNS automated resolution failed: APIKey or APISecret is empt
• Failed to get configuration

AI-assisted analysis of Billionmail/BillionMail@fc36c76c05 (2026-09-05). Data as JSON: /api/errors/dbb5dc629129792a. Report an issue: GitHub.