## 日志与监控
Mesos 自身提供了强大的日志和监控功能,某些应用框架也提供了针对框架中任务的监控能力。通过这些接口,用户可以实时获知集群的各种状态。
### 日志配置
日志文件默认在 `/var/log/mesos` 目录下,根据日志等级带有不同后缀。
用户可以通过日志来调试使用中碰到的问题。
一般的,推荐使用 `--log_dir` 选项来指定日志存放路径,并通过日志分析引擎来进行监控。
### 监控
Mesos 提供了方便的监控接口,供用户查看集群中各个节点的状态。
#### 主节点
通过 `http://MASTER_NODE:5050/metrics/snapshot` 地址可以获取到 Mesos 主节点的各种状态统计信息,包括资源(CPU、硬盘、内存)使用、系统状态、从节点、应用框架、任务状态等。
例如查看主节点 `10.0.0.2` 的状态信息,并用 jq 来解析返回的 json 对象。
```
<pre class="prettyprint"><ol class="linenums"><li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln">$ curl </span><span class="pun">-</span><span class="pln">s http</span><span class="pun">://</span><span class="lit">10.0</span><span class="pun">.</span><span class="lit">0.2</span><span class="pun">:</span><span class="lit">5050</span><span class="pun">/</span><span class="pln">metrics</span><span class="pun">/</span><span class="pln">snapshot </span><span class="pun">|</span><span class="pln">jq </span><span class="pun">.</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pun">{</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/mem_total_bytes"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">4144713728</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/mem_free_bytes"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">153071616</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/load_5min"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0.37</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/load_1min"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0.6</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/load_15min"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0.29</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/cpus_total"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">4</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"registrar/state_store_ms/p9999"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">45.4096616192</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"registrar/state_store_ms/p999"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">45.399272192</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"registrar/state_store_ms/p99"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">45.29537792</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"registrar/state_store_ms/p95"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">44.8336256</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"registrar/state_store_ms/p90"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">44.2564352</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"registrar/state_store_ms/p50"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">34.362368</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="pun">...</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/recovery_slave_removals"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">1</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/slave_registrations"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/slave_removals"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/slave_removals/reason_registered"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/slave_removals/reason_unhealthy"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/slave_removals/reason_unregistered"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/slave_reregistrations"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">2</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/slave_shutdowns_canceled"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/slave_shutdowns_completed"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">1</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"master/slave_shutdowns_scheduled"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">1</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pun">}</span></code></li>
</ol>
```
#### 从节点
通过 `http://SLAVE_NODE:5051/metrics/snapshot` 地址可以获取到 Mesos 从节点的各种状态统计信息,包括资源、系统状态、各种消息状态等。
例如查看从节点 `10.0.0.10` 的状态信息。
```
<pre class="prettyprint"><ol class="linenums"><li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln">$ curl </span><span class="pun">-</span><span class="pln">s http</span><span class="pun">://</span><span class="lit">10.0</span><span class="pun">.</span><span class="lit">0.10</span><span class="pun">:</span><span class="lit">5051</span><span class="pun">/</span><span class="pln">metrics</span><span class="pun">/</span><span class="pln">snapshot </span><span class="pun">|</span><span class="pln">jq </span><span class="pun">.</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pun">{</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/mem_total_bytes"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">16827785216</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/mem_free_bytes"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">3377315840</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/load_5min"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0.11</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/load_1min"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0.16</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/load_15min"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0.13</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"system/cpus_total"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">8</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/valid_status_updates"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">11</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/valid_framework_messages"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/uptime_secs"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">954125.458927872</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/tasks_starting"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/tasks_staging"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/tasks_running"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">1</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/tasks_lost"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/tasks_killed"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">2</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/tasks_finished"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/executors_preempted"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/executor_directory_max_allowed_age_secs"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">403050.709525191</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/disk_used"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/disk_total"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">88929</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/disk_revocable_used"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/disk_revocable_total"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/disk_revocable_percent"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/disk_percent"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"containerizer/mesos/container_destroy_errors"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/container_launch_errors"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">6</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/cpus_percent"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0.025</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/cpus_revocable_percent"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/cpus_revocable_total"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/cpus_revocable_used"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/cpus_total"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">8</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/cpus_used"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0.2</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/executors_registering"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/executors_running"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">1</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/executors_terminated"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">8</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/executors_terminating"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/frameworks_active"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">1</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/invalid_framework_messages"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/invalid_status_updates"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/mem_percent"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0.00279552715654952</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/mem_revocable_percent"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/mem_revocable_total"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/mem_revocable_used"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/mem_total"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">15024</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/mem_used"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">42</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/recovery_errors"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">0</span><span class="pun">,</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/registered"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">1</span><span class="pun">,</span></code></li>
<li class="l"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pln"> </span><span class="str">"slave/tasks_failed"</span><span class="pun">:</span><span class="pln"> </span><span class="lit">6</span></code></li>
<li class="l1"><code class="pcalibre10 pcalibre11 pcalibre9"><span class="pun">}</span></code></li>
</ol>
```
另外,通过 `http://MASTER_NODE:5050/monitor/statistics.json` 地址可以看到该从节点上容器网络相关的统计数据,包括进出流量、丢包数、队列情况等。获取方法同上,在此不再演示。
- 致谢
- 目录
- 01. 前言
- 02. 修订记录
- 03. 如何贡献
- 04. Docker 简介
- 什么是 Docker
- 为什么要用 Docker
- 05. 基本概念
- 镜像
- 容器
- 仓库
- 06. 安装 Docker
- Ubuntu
- Debian
- CentOS
- Raspberry Pi
- macOS
- Windows PC
- 镜像加速器
- 07.使用镜像
- 获取镜像
- 列出镜像
- 删除本地镜像
- 利用 commit 理解镜像构成
- 使用 Dockerfile 定制镜像
- Dockerfile 指令详解
- COPY 复制文件
- ADD 更高级的复制文件
- CMD 容器启动命令
- ENTRYPOINT 入口点
- ENV 设置环境变量
- ARG 构建参数
- VOLUME 定义匿名卷
- EXPOSE 暴露端口
- WORKDIR 指定工作目录
- USER 指定当前用户
- HEALTHCHECK 健康检查
- ONBUILD 为他人作嫁衣裳
- 参考文档
- Dockerfile 多阶段构建
- 其它制作镜像的方式
- 实现原理
- 08. 操作容器
- 启动
- 守护态运行
- 终止
- 进入容器
- 导出和导入
- 删除
- 09. 访问仓库
- Docker Hub
- 私有仓库
- 私有仓库高级配置
- 10. 数据管理
- 数据卷
- 监听主机目录
- 11. 使用网络
- 外部访问容器
- 容器互联
- 配置 DNS
- 12. 高级网络配置
- 快速配置指南
- 容器访问控制
- 配置 docker0 网桥
- 自定义网桥
- 工具和示例
- 编辑网络配置文件
- 实例:创建一个点到点连接
- 映射容器端口到宿主主机的实现
- 13. Docker 三剑客之 Compose 项目
- 简介
- 安装与卸载
- 使用
- 命令说明
- Compose 模板文件
- 实战 Django
- 实战 Rails
- 实战 WordPress
- 14. Docker 三剑客之 Machine 项目
- 安装
- 使用
- 15. Docker 三剑客之 Docker Swarm
- 16. Swarm mode
- 基本概念
- 创建 Swarm 集群
- 部署服务
- 使用 compose 文件
- 管理敏感数据
- 管理配置信息
- 17. 安全
- 内核命名空间
- 控制组
- 服务端防护
- 内核能力机制
- 其它安全特性
- 总结
- 18. 底层实现
- 基本架构
- 命名空间
- 控制组
- 联合文件系统
- 容器格式
- 网络
- 19. Etcd 项目
- 简介
- 安装
- 集群
- 使用 etcdctl
- 使用 etcdctl v2
- 20. CoreOS 项目
- 简介
- 工具
- 快速搭建 CoreOS 集群
- 21. Kubernetes 项目
- 简介
- 快速上手
- 基本概念
- kubectl 使用
- 架构设计
- 22. Mesos - 优秀的集群资源调度平台
- Mesos 简介
- 安装与使用
- 原理与架构
- Mesos 配置项解析
- 日志与监控
- 常见应用框架
- 本章小结
- 23. 容器与云计算
- 简介
- 亚马逊云
- 腾讯云
- 阿里云
- 小结
- 24. 实战案例-操作系统
- Busybox
- Alpine
- Debian Ubuntu
- CentOS Fedora
- 本章小结
- 25. 实战案例-CI-CD
- Drone
- 26. Docker 开源项目
- LinuxKit
- 27. 附录
- 附录一:常见问题总结
- 附录二:热门镜像介绍
- Ubuntu
- CentOS
- MySQL
- MongoDB
- Redis
- Nginx
- WordPress
- Node.js
- 附录三:Docker 命令查询
- 附录四:Dockerfile 最佳实践
- 附录五:资源链接
- 附录六:Docker 中文资源