<p class="shortdesc">在实例不够用或多余时，您可以对应用进行扩缩容，本文主要介绍如何扩缩容无状态应用。</p> <section class="section prereq" id="expansion__prereq_rsv_w1d_vvb"><div class="tasklabel"><h2 class="doc-tairway">前提条件</h2></div> <p class="p">您已成功创建无状态应用，可参考<a class="xref" href="/ssr/help/compute/caas/Operation_Guide.Service_Management.Deployment.create" target="_blank" rel="external noopener">创建无状态应用</a>。</p> </section> <section id="expansion__steps_rm3_w2f_fvb"><div class="tasklabel"><h2 class="doc-tairway">操作步骤</h2></div><ol class="ol steps" id="expansion__steps_rm3_w2f_fvb"><li class="li step"> <span class="ph cmd">登录<a class="xref" href="https://www.ocftcloud.com/console/caas/overview" target="_blank" rel="external noopener">容器服务CaaS控制台</a>。</span> </li><li class="li step"> <span class="ph cmd">单击左侧导航栏<span class="ph menucascade"><span class="ph uicontrol">应用管理</span><abbr> > </abbr><span class="ph uicontrol">无状态应用</span></span>。</span> </li><li class="li step"> <span class="ph cmd">选择目标地域，单击目标无状态应用<span class="ph uicontrol">操作</span>列的<span class="ph uicontrol">扩缩容</span>。</span> </li><li class="li step"> <span class="ph cmd">在弹出<strong class="ph b">扩缩容服务</strong>页面，调整滚动条中的目标实例数。</span> </li><li class="li step"> <span class="ph cmd">单击<span class="ph uicontrol">确定</span>。</span> </li></ol></section> <section class="section result" id="expansion__result_xxk_frf_fvb"><div class="tasklabel"><h2 class="doc-tairway">执行结果</h2></div> <p class="p">在<span class="keyword wintitle">无状态应用</span>页面，目标无状态应用<span class="ph uicontrol">实例数量</span>列为目标数量。</p> </section>