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href="/springboot/docker.html#intellij-idea-直连-docker" class="router-link-active router-link-exact-active nav-link sidebar-link heading" aria-label="Intellij IDEA 直连 Docker"><!---->Intellij IDEA 直连 Docker<!----></a><ul class="sidebar-sub-headers"></ul></li><li class="sidebar-sub-header"><a aria-current="page" href="/springboot/docker.html#源码路径" class="router-link-active router-link-exact-active nav-link sidebar-link heading" aria-label="源码路径："><!---->源码路径：<!----></a><ul class="sidebar-sub-headers"></ul></li></ul><!--]--></li><li><!--[--><a href="/springboot/macos-codingmore-run.html" class="nav-link sidebar-link sidebar-page" aria-label="macOS下如何运行编程喵源码"><!---->macOS下如何运行编程喵源码<!----></a><ul class="sidebar-sub-headers"></ul><!--]--></li><li><!--[--><a href="/springboot/windows-codingmore-run.html" class="nav-link sidebar-link sidebar-page" aria-label="Windows下如何运行编程喵源码"><!---->Windows下如何运行编程喵源码<!----></a><ul class="sidebar-sub-headers"></ul><!--]--></li><li><!--[--><a href="/springboot/linux-codingmore-run.html" class="nav-link sidebar-link sidebar-page" aria-label="一键部署编程喵到生产环境"><!---->一键部署编程喵到生产环境<!----></a><ul class="sidebar-sub-headers"></ul><!--]--></li><li><!--[--><a href="/springboot/validator.html" class="nav-link sidebar-link sidebar-page" aria-label="SpringBoot中如何处理校验逻辑"><!---->SpringBoot中如何处理校验逻辑<!----></a><ul class="sidebar-sub-headers"></ul><!--]--></li></ul></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">3.5 辅助工具</span><span class="arrow right"></span></button><!----></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">3.6 开源轮子</span><span class="arrow right"></span></button><!----></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">3.7 分布式</span><span class="arrow right"></span></button><!----></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">3.8 消息队列</span><span class="arrow right"></span></button><!----></section><!--]--></li></ul></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">四、数据库</span><span class="arrow right"></span></button><!----></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">五、计算机基础</span><span class="arrow right"></span></button><!----></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">六、求职面试</span><span class="arrow right"></span></button><!----></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">七、学习资源</span><span class="arrow right"></span></button><!----></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">八、学习建议</span><span class="arrow right"></span></button><!----></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">九、知识库搭建</span><span class="arrow right"></span></button><!----></section><!--]--></li><li><!--[--><section class="sidebar-group"><button class="sidebar-heading clickable"><!----><span class="title">十、联系作者</span><span class="arrow right"></span></button><!----></section><!--]--></li></ul><!--[--><!----><!--]--></aside><!--[--><main class="page" id="main-content"><!--[--><!----><nav class="breadcrumb disable"></nav><div class="page-title"><h1><!---->一键部署 Spring Boot 到远程 Docker 容器</h1><div class="page-info"><span class="author-info" aria-label="作者🖊" data-balloon-pos="down" isoriginal="false" pageview="false"><svg xmlns="http://www.w3.org/2000/svg" class="icon author-icon" viewbox="0 0 1024 1024" fill="currentColor" aria-label="author icon"><path d="M649.6 633.6c86.4-48 147.2-144 147.2-249.6 0-160-128-288-288-288s-288 128-288 288c0 108.8 57.6 201.6 147.2 249.6-121.6 48-214.4 153.6-240 288-3.2 9.6 0 19.2 6.4 25.6 3.2 9.6 12.8 12.8 22.4 12.8h704c9.6 0 19.2-3.2 25.6-12.8 6.4-6.4 9.6-16 6.4-25.6-25.6-134.4-121.6-240-243.2-288z"></path></svg><span><a class="author-item" href="/about-the-author/" target="_blank" rel="noopener noreferrer">沉默王二</a></span><span property="author" content="沉默王二"></span></span><!----><span class="date-info" aria-label="写作日期📅" data-balloon-pos="down" isoriginal="false" pageview="false"><svg xmlns="http://www.w3.org/2000/svg" class="icon calendar-icon" viewbox="0 0 1024 1024" fill="currentColor" aria-label="calendar icon"><path d="M716.4 110.137c0-18.753-14.72-33.473-33.472-33.473-18.753 0-33.473 14.72-33.473 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142.01 145.635s142.011-65.374 142.011-145.635c0-8.803 6.99-15.793 15.794-15.793s15.793 6.99 15.793 15.793c0 95.019-73.789 172.82-165.96 177.093z"></path></svg><span>大约 8 分钟</span><meta property="timeRequired" content="PT8M"></span></div><hr></div><div class="toc-place-holder"><aside id="toc"><div class="toc-header">此页内容</div><div class="toc-wrapper"><ul class="toc-list"><!--[--><li class="toc-item"><a aria-current="page" href="/springboot/docker.html#关于-docker" class="router-link-active router-link-exact-active toc-link level3">关于 Docker</a></li><!----><!--]--><!--[--><li class="toc-item"><a aria-current="page" href="/springboot/docker.html#安装-docker" class="router-link-active router-link-exact-active toc-link level3">安装 Docker</a></li><!----><!--]--><!--[--><li class="toc-item"><a aria-current="page" href="/springboot/docker.html#开启-docker-远程访问权限" class="router-link-active router-link-exact-active toc-link level3">开启 Docker 远程访问权限</a></li><!----><!--]--><!--[--><li class="toc-item"><a aria-current="page" href="/springboot/docker.html#使用-docker-部署-spring-boot" class="router-link-active router-link-exact-active toc-link level3">使用 Docker 部署 Spring Boot</a></li><!----><!--]--><!--[--><li class="toc-item"><a aria-current="page" href="/springboot/docker.html#intellij-idea-直连-docker" class="router-link-active router-link-exact-active toc-link level3">Intellij IDEA 直连 Docker</a></li><!----><!--]--><!--[--><li class="toc-item"><a aria-current="page" href="/springboot/docker.html#源码路径" class="router-link-active router-link-exact-active toc-link level3">源码路径：</a></li><!----><!--]--></ul></div></aside></div><!----><div class="theme-hope-content"><h3 id="关于-docker" tabindex="-1"><a class="header-anchor" href="#关于-docker" aria-hidden="true">#</a> 关于 Docker</h3><p>Docker 是用 go 语言编写的，这也是 go 语言近些年越来越火的原因之一。关于 Docker，有 3 个重要的概念需要了解下：</p><ul><li>image：镜像，一个文件，用来创建容器；如果你有 Windows 装机经历，那可以很好理解镜像这个词的含义，反正我年少的时候没少把 Windows 镜像刻盘重装系统。</li><li>container：容器，一个可运行的镜像实例，里面运行着一个完整的操作系统，可以做一切你当前操作系统可以做的事情。</li><li>Dockerfile：镜像构建的模板，描述镜像构建的步骤。</li></ul><p>它们之间的关系是，通过 Dockerfile 构建出镜像，然后通过镜像构建容器，容器里可以跑程序。另外，一个镜像可以创建多个容器，每个容器之间是相互隔离的。</p><p>对于我们开发人员来说，Docker 可以做到：</p><ul><li>编写本地代码</li><li>使用 Docker 将程序推送到测试环境</li><li>发现 bug 后在开发环境下修复，重新部署到测试环境测试</li><li>测试完成后，推送到生产环境</li></ul><p>在这个过程中，Docker 提供的是开发环境、测试环境和生产环境的一致性，细细想一下，是不是挺恐怖的。。。。。</p><p>以后我们开发人员再说什么“我本地运行的好好的呀”就甩不了锅了，哈哈。</p><p>Java 程序员应该对 Docker 这句宣传语很熟悉：</p><blockquote><p>Build once，Run anywhere（搭建一次，到处能用）</p></blockquote><p>Docker 采用的是 CS 架构，客户端与 Docker 守护进程交互，后者负责构建、运行和分发 Docker 容器的工作。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-5583604e-5ef8-4187-b29b-ff8527829141.png" alt=""></p><p>Docker 的应用场景非常丰富，比如说：</p><ul><li>自动打包和部署应用</li><li>创建轻量、私有的PaaS环境</li><li>自动化测试和持续集成/部署</li><li>部署并扩展Web应用、数据库和后端服务器</li><li>创建安全沙盒</li><li>轻量级的桌面虚拟化</li></ul><h3 id="安装-docker" tabindex="-1"><a class="header-anchor" href="#安装-docker" aria-hidden="true">#</a> 安装 Docker</h3><p>Docker Engine（引擎）需要安装在 64 位的 Linux 服务器上（32 位不支持），并且需要一些先决条件（针对 CentOS 系统）：</p><blockquote><p>PS：Linux 社区已不再维护 CentOS 8，导致 yum 源需要<a href="https://help.aliyun.com/document_detail/405635.htm" target="_blank" rel="noopener noreferrer">切换<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a>，后面打算把系统切换为 Anolis或Alinux</p></blockquote><ul><li>必须是 CentOS 7 或者 8版本，以下版本不支持</li><li>centos-extras 存储库必须是启用的，一般是启用的，如果没启用的话，需要手动启用</li><li>推荐使用 overlay2（戳<a href="https://www.cnblogs.com/FengZeng666/p/14173906.html" target="_blank" rel="noopener noreferrer">链接<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a>了解）存储驱动</li></ul><p>我的云服务器安装的是 CentOS 系统，所以这里就以 CentOS 作为演示环境。我个人更喜欢 RPM（Red-Hat Package Manager，红帽软件包管理器）安装包的方式，简单高效。</p><p>第一步，安装 yum-utils 工具包。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>yum install -y yum-utils
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>第二步，使用 yum-utils 提供的 yum-config-manager 工具配置 Docker 的安装仓库。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>yum-config-manager \
--add-repo \
https://download.docker.com/linux/centos/docker-ce.repo
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>第三步，安装 Docker 引擎（包括 Docker Engine, containerd, 和 Docker Compose）。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>yum install docker-ce docker-ce-cli containerd.io docker-compose-plugin
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>第四步，启动 Docker。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>systemctl start docker
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>第五步，验证 Docker 是否正确安装。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>docker run hello-world
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>如果出现以下提示信息，就表明 Docker 安装成功了！</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-e1443e64-810b-46e3-9c1c-f144cdca1a35.png" alt=""></p><p>以上是 Docker 官方提供的安装方式，稍显复杂，其实我们可以用更简洁的方式。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code># 首先安装 Docker
yum -y install docker
# 然后启动 Docker 服务
service docker start
# 测试安装是否成功
docker -v
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>Docker 针对 Windows 和 macOS 系统都提供了桌面版，可以到官网下载安装包。</p><blockquote><p>Docker 下载地址：<a href="https://docs.docker.com/get-docker/" target="_blank" rel="noopener noreferrer">https://docs.docker.com/get-docker/<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></p></blockquote><p>我这里以 macOS 为例，M1 芯片可以选择 Apple Chip。下载完成后直接傻瓜式安装就可以了。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-f4cd508b-c77b-44a1-979f-b4e9e7ff82ef.png" alt=""></p><p>安装并启动成功后的界面如下所示:</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-c78c5bea-aa4c-472f-aa69-20854211fd02.png" alt=""></p><p>按照提示，在终端输入命令 <code>docker run -d -p 80:80 docker/getting-started</code>：</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-9d04a0e6-7e74-4a36-bc39-7abc0079ff16.png" alt=""></p><p>再次回到 Docker 桌面版，可以看到刚刚通过 80 端口在 Docker 中跑起来的 Docker 教程。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-36708add-535a-41d3-bbcf-68e2750e5f16.png" alt=""></p><p>点击「open in browser」图标就可以在浏览器打开教程文档了。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-209a79c6-294f-4f0d-9fe1-1ab62190d4ef.png" alt=""></p><p>Windows 用户也可以通过我之前推荐的 chocolatey 命令行工具安装。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-4ef004a5-5b96-41eb-8621-65edfbe64f14.png" alt=""></p><p>（Windows 的安装等下一次拿到小米的笔记本后，我装一个把这部分补充完整）</p><h3 id="开启-docker-远程访问权限" tabindex="-1"><a class="header-anchor" href="#开启-docker-远程访问权限" aria-hidden="true">#</a> 开启 Docker 远程访问权限</h3><p>为了将我们本地的应用程序部署到 Docker 服务器上，我们需要开启一下 Docker 的远程访问权限。</p><p>第一步，通过以下命令打开 Docker 配置文件。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>vim /usr/lib/systemd/system/docker.service
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>第二步，在 service 节点下编辑 ExecStart 属性，增加 <code>-H tcp://0.0.0.0:2375</code></p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-a1be68f4-cb1b-45b1-ab6a-b39259a3ef39.png" alt=""></p><p>这样就相当于对外开放了 2375 端口，如果你安装了宝塔面板，记得在安全页放行该端口，同时，云服务器的防火墙也要放开该端口。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-9bddcf0e-c6a7-414d-82ef-7881009ea6c9.png" alt=""></p><p>配置完成后，重启 Docker。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>systemctl daemon-reload
systemctl restart docker
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div></div></div><p>在浏览器地址栏输入 <code>http://ip:2375/version</code> 测试一下是否生效。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-29852364-5b55-43b4-a7fa-6a9c4a592606.png" alt=""></p><p>之后，可以在 Intellij IDEA 中配置一下 Docker 的 TCP socket，如果出现 connection successful 就表明链接成功了。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-a6e42514-8740-48ac-8baf-b97f49cb1818.png" alt=""></p><h3 id="使用-docker-部署-spring-boot" tabindex="-1"><a class="header-anchor" href="#使用-docker-部署-spring-boot" aria-hidden="true">#</a> 使用 Docker 部署 Spring Boot</h3><p>第一步，新建一个简单的 Spring Boot 项目。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-3f748cc6-2efe-487d-9799-f02794145aec.png" alt=""></p><p>一个非常简单的 Web 项目，只有一个控制器，代码如下：</p><div class="language-java ext-java line-numbers-mode"><pre class="language-java"><code><span class="token annotation punctuation">@RequestMapping</span>
<span class="token annotation punctuation">@RestController</span>
<span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">DockerController</span> <span class="token punctuation">{</span>
<span class="token annotation punctuation">@RequestMapping</span><span class="token punctuation">(</span><span class="token string">"/"</span><span class="token punctuation">)</span>
<span class="token keyword">public</span> <span class="token class-name">String</span> <span class="token function">hello</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">return</span> <span class="token string">"Docker，我告诉你，沉默王二是沙雕"</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><p>@RequestMapping、@RestController 注解我们在前几个章节介绍过了，也就是表明我们这是一个 SpringMVC 的项目，<code>/</code> 路径意味着我们只要在浏览器地址栏输入 <code>localhost:8080</code> 就可以发送请求了，响应结果为 “Docker，我告诉你，沉默王二是沙雕”。</p><p>启动服务后，可以通过 Intellij IDEA 的 HTTP Client 验证一下。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-78c3e7e5-e208-417e-9b9f-4fc97643f4da.png" alt=""></p><p>OK，项目可以正常访问。</p><p>第二步，构建 Spring Boot 项目的 Docker 镜像文件 Dockerfile。</p><p>在项目根目录新建 Dockerfile 文件，见下图位置。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-08d6ce30-8192-4a7e-8bdc-95adb91c7c74.png" alt=""></p><p>具体内容如下所示：</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>FROM openjdk:8-jdk-alpine
ARG JAR_FILE=target/*.jar
COPY ${JAR_FILE} app.jar
ENTRYPOINT ["java","-jar","/app.jar"]
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li><code>FROM openjdk:8-jdk-alpine</code>：表示使用 JDK8 为基础镜像。</li><li><code>ARG JAR_FILE=target/*.jar</code>：表示定义一个参数名为 JAR_FILE，值为 <code>target/*.jar</code> 的构建参数</li><li><code>COPY ${JAR_FILE} app.jar</code>：表示把 target 目录下的 jar 文件复制一份新的到镜像内的 app.jar 文件</li><li><code>ENTRYPOINT ["java","-jar","/app.jar"]</code>：表示通过 <code>java -jar</code> 的形式运行 <code>app.jar</code>，ENTRYPOINT 用来配置容器启动时的运行命令，第一个参数是运行命令，后面是一个一个参数。</li></ul><p>第三步，在 pom.xml 文件中添加 Maven 的 Docker 插件。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code><plugin>
<groupId>com.spotify</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>1.2.2</version>
<executions>
<execution>
<id>build-image</id>
<phase>package</phase>
<goals>
<goal>build</goal>
</goals>
</execution>
</executions>
<configuration>
<dockerHost>http://ip:2375</dockerHost>
<imageName>itwanger/${project.artifactId}</imageName>
<imageTags>
<imageTag>${project.version}</imageTag>
</imageTags>
<forceTags>true</forceTags>
<dockerDirectory>${project.basedir}</dockerDirectory>
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}.jar</include>
</resource>
</resources>
</configuration>
</plugin>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div><div class="line-number"></div></div></div><ul><li>在 <code>executions</code> 节点下添加 docker:build，表示在执行 mvn:package 打包的时候顺带构建一下 Docker 镜像。</li><li>在 <code>configuration</code> 节点下添加 Docker 主机的地址、镜像的名字、镜像的版本、镜像文件的目录、以及 resources 节点下配置的 jar 包位置和名称等。</li></ul><p>配置搞定后，接下来就是对项目进行打包，可以直接点击 Maven 面板中的 package 进行打包。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-1932f285-bb8d-4225-af6e-014ed2c9104b.png" alt=""></p><p>首次打包需要下载一些基础镜像，打包成功后，可以在 Docker 容器中查看我们刚刚打包好的镜像，命令 <code>docker images</code>。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-730b4f5b-d556-4f73-9dfc-b22152d86f08.png" alt=""></p><p>接下来，我们就可以启动这个镜像的容器：</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>docker run -d --name itwanger -p 8080:8080 itwanger/springboot-docker:0.0.1-SNAPSHOT
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><ul><li><code>-d</code>: 后台运行容器，并返回容器ID；</li><li><code>--name</code>: 为容器指定一个名称 itwanger；</li><li><code>-p</code>: 指定端口映射，格式为：主机(宿主)端口:容器端口</li></ul><p>然后在浏览器中访问 8080 端口，就可以看到我们的应用程序在 Docker 上成功运行了。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-79a760b1-c084-4a5c-adc0-911b2e44ae7a.png" alt=""></p><p>当利用 <code>docker run</code> 来创建容器时，Docker 在后台运行的标准操作包括：</p><ul><li>检查本地是否存在指定的镜像，不存在就从仓库下载</li><li>利用镜像创建并启动一个容器</li><li>分配一个文件系统，并在只读的镜像层外面挂载一层可读写层</li><li>从宿主主机配置的网桥接口中桥接一个虚拟接口到容器中去</li><li>从地址池配置一个 ip 地址给容器</li><li>执行用户指定的应用程序</li><li>执行完毕后容器被终止</li></ul><h3 id="intellij-idea-直连-docker" tabindex="-1"><a class="header-anchor" href="#intellij-idea-直连-docker" aria-hidden="true">#</a> Intellij IDEA 直连 Docker</h3><p>新版的 Intellij IDEA 中已经默认继承了 Docker，所以我们可以通过 services 面板打开 Docker，直接进行操作。</p><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/springboot/docker-6b4fbbb0-3986-403b-9d7e-7e50cf27b499.png" alt=""></p><hr><p>更多内容，只针对《Java 程序员进阶之路》星球用户开放，需要的小伙伴可以<a href="https://tobebetterjavaer.com/zhishixingqiu/" target="_blank" rel="noopener noreferrer">戳链接🔗<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a>加入我们的星球，一起学习，一起卷。。<strong>编程喵</strong>🐱是一个 Spring Boot+Vue 的前后端分离项目，融合了市面上绝大多数流行的技术要点。通过学习实战项目，你可以将所学的知识通过实践进行检验、你可以拓宽自己的技术边界，你可以掌握一个真正的实战项目是如何从 0 到 1 的。</p><h3 id="源码路径" tabindex="-1"><a class="header-anchor" href="#源码路径" aria-hidden="true">#</a> 源码路径：</h3><blockquote><ul><li>编程喵：<a href="https://github.com/itwanger/coding-more" target="_blank" rel="noopener noreferrer">https://github.com/itwanger/coding-more<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></li><li>codingmore-docker：<a href="https://github.com/itwanger/codingmore-learning/tree/main/springboot-docker" target="_blank" rel="noopener noreferrer">https://github.com/itwanger/codingmore-learning<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a></li></ul></blockquote><hr><p><img src="http://cdn.tobebetterjavaer.com/tobebetterjavaer/images/xingbiaogongzhonghao.png" alt=""></p></div><!----><footer class="page-meta"><div class="meta-item edit-link"><a href="https://github.com/itwanger/toBeBetterJavaer/edit/master/docs/springboot/docker.md" rel="noopener noreferrer" target="_blank" aria-label="在 GitHub 上编辑此页" class="nav-link label"><!--[--><svg xmlns="http://www.w3.org/2000/svg" class="icon edit-icon" 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