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62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a href="/doc/contact-us.md" class="sidebar-item" aria-label="QQ群/钉钉群"><!--[--><!--]--> QQ群/钉钉群 <!--[--><!--]--></a><!----></li><!--]--></ul></li><!--]--></ul><!--[--><!--]--></aside><!--]--><!--[--><main class="page" data-v-e0e60120><!--[--><!--]--><div class="right-menu-padding theme-default-content" data-v-e0e60120><!--[--><!--]--><div class="right-menu-wrapper" data-v-e0e60120><div class="right-menu-margin"><div class="right-menu-title">目录</div><div class="right-menu-content"><!--[--><!--]--></div></div></div><div data-v-e0e60120><h1 id="docker" tabindex="-1"><a class="header-anchor" href="#docker" aria-hidden="true">#</a> Docker</h1><h2 id="在-docker-里使用-jdk" tabindex="-1"><a class="header-anchor" href="#在-docker-里使用-jdk" aria-hidden="true">#</a> 在 Docker 里使用 JDK</h2><p>很多时候，应用在 docker 里出现 arthas 无法工作的问题，是因为应用没有安装 JDK ，而是安装了 JRE 。如果只安装了 JRE，则会缺少很多 JAVA 的命令行工具和类库，Arthas 也没办法正常工作。下面介绍两种常见的在 Docker 里使用 JDK 的方式。</p><h3 id="使用公开的-jdk-镜像" tabindex="-1"><a class="header-anchor" href="#使用公开的-jdk-镜像" aria-hidden="true">#</a> 使用公开的 JDK 镜像</h3><ul><li>https://hub.docker.com/_/openjdk/</li></ul><p>比如：</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>FROM openjdk:8-jdk
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><p>或者：</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>FROM openjdk:8-jdk-alpine
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h3 id="通过包管理软件来安装" tabindex="-1"><a class="header-anchor" href="#通过包管理软件来安装" aria-hidden="true">#</a> 通过包管理软件来安装</h3><p>比如：</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code><span class="token comment"># Install OpenJDK-8</span>
RUN <span class="token function">apt-get</span> update <span class="token operator">&amp;&amp;</span> <span class="token punctuation">\</span>
<span class="token function">apt-get</span> <span class="token function">install</span> -y openjdk-8-jdk <span class="token operator">&amp;&amp;</span> <span class="token punctuation">\</span>
<span class="token function">apt-get</span> <span class="token function">install</span> -y ant <span class="token operator">&amp;&amp;</span> <span class="token punctuation">\</span>
<span class="token function">apt-get</span> clean<span class="token punctuation">;</span>
<span class="token comment"># Fix certificate issues</span>
RUN <span class="token function">apt-get</span> update <span class="token operator">&amp;&amp;</span> <span class="token punctuation">\</span>
<span class="token function">apt-get</span> <span class="token function">install</span> ca-certificates-java <span class="token operator">&amp;&amp;</span> <span class="token punctuation">\</span>
<span class="token function">apt-get</span> clean <span class="token operator">&amp;&amp;</span> <span class="token punctuation">\</span>
update-ca-certificates -f<span class="token punctuation">;</span>
<span class="token comment"># Setup JAVA_HOME -- useful for docker commandline</span>
ENV JAVA_HOME /usr/lib/jvm/java-8-openjdk-amd64/
RUN <span class="token builtin class-name">export</span> JAVA_HOME
</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></div><p>或者：</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>RUN yum <span class="token function">install</span> -y <span class="token punctuation">\</span>
java-1.8.0-openjdk <span class="token punctuation">\</span>
java-1.8.0-openjdk-devel
ENV JAVA_HOME /usr/lib/jvm/java-1.8.0-openjdk/
RUN <span class="token builtin class-name">export</span> JAVA_HOME
</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></div><h2 id="通过-docker-快速入门" tabindex="-1"><a class="header-anchor" href="#通过-docker-快速入门" aria-hidden="true">#</a> 通过 Docker 快速入门</h2><ol><li><p>删除本地已有的<code>math-game</code> docker container（非必要）</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">docker</span> stop math-game <span class="token operator">||</span> <span class="token boolean">true</span> <span class="token operator">&amp;&amp;</span> <span class="token function">docker</span> <span class="token function">rm</span> math-game <span class="token operator">||</span> <span class="token boolean">true</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div></li><li><p>启动<code>math-game</code></p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">docker</span> run --name math-game -it hengyunabc/arthas:latest /bin/sh -c <span class="token string">&quot;java -jar /opt/arthas/math-game.jar&quot;</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div></li><li><p>启动<code>arthas-boot</code>来进行诊断</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>$ <span class="token function">docker</span> <span class="token builtin class-name">exec</span> -it math-game /bin/sh -c <span class="token string">&quot;java -jar /opt/arthas/arthas-boot.jar&quot;</span>
* <span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span>: <span class="token number">9</span> jar
<span class="token punctuation">[</span>INFO<span class="token punctuation">]</span> arthas home: /opt/arthas
<span class="token punctuation">[</span>INFO<span class="token punctuation">]</span> Try to attach process <span class="token number">9</span>
<span class="token punctuation">[</span>INFO<span class="token punctuation">]</span> Attach process <span class="token number">9</span> success.
<span class="token punctuation">[</span>INFO<span class="token punctuation">]</span> arthas-client connect <span class="token number">127.0</span>.0.1 <span class="token number">3658</span>
,---. ,------. ,--------.,--. ,--. ,---. ,---.
/ O <span class="token punctuation">\</span> <span class="token operator">|</span> .--. <span class="token string">&#39;&#39;</span>--. .--<span class="token string">&#39;| &#39;</span>--<span class="token string">&#39; | / O \ &#39;</span> .-<span class="token string">&#39;
| .-. || &#39;</span>--<span class="token string">&#39;.&#39;</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> .--. <span class="token operator">||</span> .-. <span class="token operator">|</span><span class="token variable"><span class="token variable">`</span><span class="token builtin class-name">.</span> <span class="token variable">`</span></span>-.
<span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">||</span> <span class="token operator">|</span><span class="token punctuation">\</span> <span class="token punctuation">\</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">||</span> <span class="token operator">|</span> <span class="token operator">|</span> <span class="token operator">|</span>.-<span class="token string">&#39; |
`--&#39;</span> <span class="token variable"><span class="token variable">`</span>--&#39;<span class="token variable">`</span></span>--<span class="token string">&#39; &#39;</span>--<span class="token string">&#39; `--&#39;</span> <span class="token variable"><span class="token variable">`</span>--&#39; <span class="token variable">`</span></span>--<span class="token string">&#39;`--&#39;</span> <span class="token variable"><span class="token variable">`</span>--&#39;<span class="token variable">`</span></span>-----&#39;
wiki: https://arthas.aliyun.com/doc
version: <span class="token number">3.0</span>.5
pid: <span class="token number">9</span>
time: <span class="token number">2018</span>-12-18 <span class="token number">11</span>:30:36
</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></div></li></ol><h2 id="诊断-docker-里的-java-进程" tabindex="-1"><a class="header-anchor" href="#诊断-docker-里的-java-进程" aria-hidden="true">#</a> 诊断 Docker 里的 Java 进程</h2><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code><span class="token function">docker</span> <span class="token builtin class-name">exec</span> -it <span class="token variable">${containerId}</span> /bin/bash -c <span class="token string">&quot;wget https://arthas.aliyun.com/arthas-boot.jar &amp;&amp; java -jar arthas-boot.jar&quot;</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="诊断-k8s-里容器里的-java-进程" tabindex="-1"><a class="header-anchor" href="#诊断-k8s-里容器里的-java-进程" aria-hidden="true">#</a> 诊断 k8s 里容器里的 Java 进程</h2><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>kubectl <span class="token builtin class-name">exec</span> -it <span class="token variable">${pod}</span> --container <span class="token variable">${containerId}</span> -- /bin/bash -c <span class="token string">&quot;wget https://arthas.aliyun.com/arthas-boot.jar &amp;&amp; java -jar arthas-boot.jar&quot;</span>
</code></pre><div class="line-numbers" aria-hidden="true"><div class="line-number"></div></div></div><h2 id="把-arthas-安装到基础镜像里" tabindex="-1"><a class="header-anchor" href="#把-arthas-安装到基础镜像里" aria-hidden="true">#</a> 把 Arthas 安装到基础镜像里</h2><p>可以很简单把 Arthas 安装到你的 Docker 镜像里。</p><div class="language-text ext-text line-numbers-mode"><pre class="language-text"><code>FROM openjdk:8-jdk-alpine
# copy arthas
COPY --from=hengyunabc/arthas:latest /opt/arthas /opt/arthas
</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><p>如果想指定版本，可以查看具体的 tags：</p><p><a href="https://hub.docker.com/r/hengyunabc/arthas/tags" target="_blank" rel="noopener noreferrer">https://hub.docker.com/r/hengyunabc/arthas/tags<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">在新窗口打开</span></span></a></p></div><!--[--><!--]--></div><footer class="page-meta right-menu-padding" data-v-e0e60120><div class="meta-item edit-link"><a class="external-link meta-item-label" href="https://github.com/alibaba/arthas/edit/master/site/docs/doc/docker.md" rel="noopener noreferrer" target="_blank" aria-label="在 GitHub 上编辑此页"><!--[--><!--]--><span>在 GitHub 上编辑此页</span><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">在新窗口打开</span></span><!--[--><!--]--></a></div><div class="meta-item last-updated"><span class="meta-item-label">Last Updated: </span><!----></div><div class="meta-item contributors"><span class="meta-item-label">贡献者: </span><span class="meta-item-info"><!--[--><!--[--><span class="contributor" title="email: hengyunabc@gmail.com">hengyunabc</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: 1412950785@qq.com">garenchan</span><!----><!--]--><!--]--></span></div></footer><nav class="page-nav right-menu-padding" data-v-e0e60120><p class="inner"><span class="prev"><a href="/doc/http-api.html" class="" aria-label="Http API"><!--[--><!--]--> Http API <!--[--><!--]--></a></span><span class="next"><a href="/doc/spring-boot-starter.html" class="" aria-label="Arthas Spring Boot Starter"><!--[--><!--]--> Arthas Spring Boot Starter <!--[--><!--]--></a></span></p></nav><!--[--><!--]--></main><!--]--></div><!----><!--]--></div>
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