Function getContainersStatus

hubcmdui/services/dockerService.js:37–150

()

// 修改其他Docker相关方法，添加更友好的错误处理
async function getContainersStatus() {
  const docker = await initDockerConnection();
  if (!docker) {
    logger.warn('[getContainersStatus] Cannot connect to Docker daemon, returning error indicator.');
    // 返回带有特殊错误标记的数组，前端可以通过这个标记识别 Docker 不可用
    return [{ 
      id: 'n/a',
      name: 'Docker 服务不可用',
      image: 'n/a',
      state: 'error',
      status: 'Docker 服务未运行或无法连接',
      error: 'DOCKER_UNAVAILABLE', // 特殊错误标记
      cpu: 'N/A',
      memory: 'N/A',
      created: new Date().toLocaleString()
    }];
  }
  
  let containers = [];
  try {
      containers = await docker.listContainers({ all: true });
      logger.info(`[getContainersStatus] Found ${containers.length} containers.`);
  } catch (listError) {
      logger.error('[getContainersStatus] Error listing containers:', listError.message || listError);
      // 使用同样的错误标记模式
      return [{ 
        id: 'n/a',
        name: '容器列表获取失败',
        image: 'n/a',
        state: 'error',
        status: `获取容器列表失败: ${listError.message}`,
        error: 'CONTAINER_LIST_ERROR',
        cpu: 'N/A',
        memory: 'N/A',
        created: new Date().toLocaleString()
      }];
  }

  const containerPromises = containers.map(async (container) => {
    try { 
        const containerInspectInfo = await docker.getContainer(container.Id).inspect();
        
        let stats = {};
        let cpuUsage = 'N/A';
        let memoryUsage = 'N/A';

        // 仅在容器运行时尝试获取 stats
        if (containerInspectInfo.State.Running) {
            try {
                 stats = await docker.getContainer(container.Id).stats({ stream: false });
                 
                 // Safely calculate CPU usage
                 if (stats.precpu_stats && stats.cpu_stats && stats.cpu_stats.cpu_usage && stats.precpu_stats.cpu_usage && stats.cpu_stats.system_cpu_usage && stats.precpu_stats.system_cpu_usage) {
                     const cpuDelta = stats.cpu_stats.cpu_usage.total_usage - stats.precpu_stats.cpu_usage.total_usage;
                     const systemDelta = stats.cpu_stats.system_cpu_usage - stats.precpu_stats.system_cpu_usage;
                     if (systemDelta > 0 && stats.cpu_stats.online_cpus > 0) {
                         cpuUsage = ((cpuDelta / systemDelta) * stats.cpu_stats.online_cpus * 100.0).toFixed(2) + '%';
                     } else {