https://pig.center/ja/docs/etcd/tasks/developer/Recent content in 開発者向けタスク on PIG.CENTERHugoja-JPTue, 08 Sep 2026 21:29:01 +0800https://pig.center/ja/docs/etcd/tasks/developer/reading-from-etcd/Mon, 01 Jan 0001 00:00:00 +0000https://pig.center/ja/docs/etcd/tasks/developer/reading-from-etcd/<h2 id="prerequisites">前提条件 </h2> <ul> <li><code>etcdctl</code>をインストールします。</li> </ul> <h2 id="procedure">手順 </h2> <p><code>get</code>サブコマンドを使用して、etcdから読み取ります。</p>https://pig.center/ja/docs/etcd/tasks/developer/writing-to-etcd/Mon, 01 Jan 0001 00:00:00 +0000https://pig.center/ja/docs/etcd/tasks/developer/writing-to-etcd/<h2 id="prerequisites">前提条件 </h2> <ul> <li><code>etcdctl</code>をインストールします。</li> </ul> <h2 id="procedure">手順 </h2> <p><code>put</code>サブコマンドを使用して、キー・バリューペアを書き込みます。</p>https://pig.center/ja/docs/etcd/tasks/developer/how-to-get-key-by-prefix/Mon, 01 Jan 0001 00:00:00 +0000https://pig.center/ja/docs/etcd/tasks/developer/how-to-get-key-by-prefix/<h2 id="pre-requisites">前提条件 </h2> <ul> <li><a href="https://pig.center/docs/etcd/install/" hreflang="en" data-fallback-language="en">etcdctlをインストール</a> します。</li> <li><a href="https://pig.center/docs/etcd/dev-guide/local_cluster/" hreflang="en" data-fallback-language="en">ローカルクラスターをセットアップ</a> します。</li> </ul> <h2 id="get-keys-by-prefix">プレフィックスでキーを取得する </h2> <div class="td-code td-code--untitled" id="td-code-4d2626d8-fence-0" data-td-code data-td-code-auto-id data-td-language="bash" data-td-line-count="1"> <div class="td-code__viewport" id="td-code-4d2626d8-fence-0-viewport" data-td-code-viewport><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">$ etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> get PREFIX --prefix</span></span></code></pre></div></div> </div> <h3 id="global-options">グローバルオプション </h3> <div class="td-code td-code--untitled" id="td-code-4d2626d8-fence-1" data-td-code data-td-code-auto-id data-td-language="bash" data-td-line-count="1"> <div class="td-code__viewport" id="td-code-4d2626d8-fence-1-viewport" data-td-code-viewport><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">--endpoints<span class="o">=[</span>127.0.0.1:2379<span class="o">]</span>, gRPC endpoints</span></span></code></pre></div></div> </div> <h3 id="options">オプション </h3> <div class="td-code td-code--untitled" id="td-code-4d2626d8-fence-2" data-td-code data-td-code-auto-id data-td-language="bash" data-td-line-count="1"> <div class="td-code__viewport" id="td-code-4d2626d8-fence-2-viewport" data-td-code-viewport><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-bash" data-lang="bash"><span class="line"><span class="cl">--prefix, get a range of keys with matching prefix</span></span></code></pre></div></div> </div> <h3 id="example">例 </h3> <img class="td-image" src="https://pig.center/docs/etcd/tasks/img/get-by-prefix.gif" alt="03_etcdctl_get_by_prefix_2016050501" loading="lazy" decoding="async"><div class="td-code td-code--untitled" id="td-code-4d2626d8-fence-3" data-td-code data-td-code-auto-id data-td-language="shell" data-td-line-count="5"> <div class="td-code__viewport" id="td-code-4d2626d8-fence-3-viewport" data-td-code-viewport><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> put web1 value1 </span></span><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> put web2 value2 </span></span><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> put web3 value3 </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> get web --prefix</span></span></code></pre></div></div> </div>https://pig.center/ja/docs/etcd/tasks/developer/how-to-delete-keys/Mon, 01 Jan 0001 00:00:00 +0000https://pig.center/ja/docs/etcd/tasks/developer/how-to-delete-keys/<h2 id="prerequisites">前提条件 </h2> <ul> <li><a href="https://pig.center/docs/etcd/install/" hreflang="en" data-fallback-language="en"><code>etcd</code>と<code>etcdctl</code></a> をインストールします。</li> </ul> <h2 id="add-or-delete-keys">キーの追加と削除 </h2> <p>指定したキーまたはキー範囲を削除する<code>del</code>：</p>https://pig.center/ja/docs/etcd/tasks/developer/how-to-watch-keys/Mon, 01 Jan 0001 00:00:00 +0000https://pig.center/ja/docs/etcd/tasks/developer/how-to-watch-keys/<h2 id="prerequisites">前提条件 </h2> <ul> <li><a href="https://pig.center/docs/etcd/install/" hreflang="en" data-fallback-language="en"><code>etcd</code>と<code>etcdctl</code></a> をインストールします。</li> </ul> <h2 id="watching-keys">キーの監視 </h2> <p>今後の変更の通知を受け取る<code>watch</code>：</p>https://pig.center/ja/docs/etcd/tasks/developer/how-to-create-lease/Mon, 01 Jan 0001 00:00:00 +0000https://pig.center/ja/docs/etcd/tasks/developer/how-to-create-lease/<p>TTLを指定した書き込みに使用する<code>lease</code>：</p> <img class="td-image" src="https://pig.center/docs/etcd/tasks/img/create-lease.gif" alt="07_etcdctl_lease_2016050501" loading="lazy" decoding="async"><div class="td-code td-code--untitled" id="td-code-a0aa4d14-fence-0" data-td-code data-td-code-auto-id data-td-language="shell" data-td-line-count="10"> <div class="td-code__viewport" id="td-code-a0aa4d14-fence-0-viewport" data-td-code-viewport><div class="highlight"><pre tabindex="0" class="chroma"><code class="language-shell" data-lang="shell"><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> lease grant <span class="m">300</span> </span></span><span class="line"><span class="cl"><span class="c1"># lease 2be7547fbc6a5afa granted with TTL(300s)</span> </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> put sample value --lease<span class="o">=</span>2be7547fbc6a5afa </span></span><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> get sample </span></span><span class="line"><span class="cl"> </span></span><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> lease keep-alive 2be7547fbc6a5afa </span></span><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> lease revoke 2be7547fbc6a5afa </span></span><span class="line"><span class="cl"><span class="c1"># or after 300 seconds</span> </span></span><span class="line"><span class="cl">etcdctl --endpoints<span class="o">=</span><span class="nv">$ENDPOINTS</span> get sample</span></span></code></pre></div></div> </div>https://pig.center/ja/docs/etcd/tasks/developer/how-to-create-locks/Mon, 01 Jan 0001 00:00:00 +0000https://pig.center/ja/docs/etcd/tasks/developer/how-to-create-locks/<p>LOCKは、指定された名前の分散ミューテックスを取得します。取得したロックは、etcdctlが終了するまで保持されます。</p> <h2 id="prerequisites">前提条件 </h2> <ul> <li><a href="https://pig.center/docs/etcd/install/" hreflang="en" data-fallback-language="en"><code>etcd</code>と<code>etcdctl</code></a> をインストールします。</li> </ul> <h2 id="creating-a-lock">ロックの作成 </h2> <p>分散ロックに使用する<code>lock</code>：</p>