<p><span style="font-size:16px"><strong>前提条件</strong></span></p> <p>1.&nbsp; 您已制作自定义镜像。针对启用弹性伸缩的应用，首先在控制台申请一台ECS安装部署应用，并设置应用开机启动，把状态数据单独存放于独立的服务器中，数据、日志等存放于数据库或日志服务器。关机后选择制作镜像。详细制作镜像操作流程，请参考制作自定义镜像。</p> <p>2.&nbsp; 子网的可用IP数充足，若可用IP数不足，会导致伸缩组扩展活动失败。</p> <p>&nbsp;</p> <p><span style="font-size:16px"><strong>操作步骤</strong></span></p> <p>1.&nbsp; 登录<a href="https://www.ocftcloud.com/console/autoScaling/list" target="_blank">弹性伸缩AS控制台</a>。</p> <p>2.&nbsp; 进入<strong>伸缩组管理 &gt; 伸缩组列表</strong>页面，单击目标地域。</p> <p>3.&nbsp; 在目标伸缩组操作列单击更多图标<strong>︙</strong>，弹出下拉列表。</p> <p><img src="https://obs-cn-shanghai.ocftcloud.com/pacloud/20192508120041-1b380950905f.png" style="height:166px; width:830px" /></p> <p>4.&nbsp; 单击<strong>配置</strong>，进入<strong>伸缩组配置</strong>页面。</p> <p>5.&nbsp; 根据如下信息，配置伸缩组，单击<strong>下一步</strong>。</p> <p><strong>计费选择</strong></p> <table border="1" cellpadding="0" cellspacing="0" style="width:807px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:150px"> <p><strong>配置项</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:651px"> <p><strong>说明</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:150px"> <p>计费方式</p> </td> <td style="vertical-align:top; width:651px"> <p>默认提供按量计费方式。</p> </td> </tr> </tbody> </table> <p><strong>区域选择</strong></p> <table border="1" cellpadding="0" cellspacing="0" style="width:806px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:150px"> <p><strong>配置项</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:650px"> <p><strong>说明</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:150px"> <p>地域</p> </td> <td style="vertical-align:top; width:650px"> <p>默认即可。</p> </td> </tr> <tr> <td style="vertical-align:top; width:150px"> <p>可用区</p> </td> <td style="vertical-align:top; width:650px"> <p>默认即可。</p> </td> </tr> <tr> <td style="vertical-align:top; width:150px"> <p>高可用域</p> </td> <td style="vertical-align:top; width:650px"> <p>默认即可。</p> </td> </tr> </tbody> </table> <p><strong>主机配置</strong></p> <table border="1" cellpadding="0" cellspacing="0" style="width:805px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:149px"> <p><strong>配置项</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:650px"> <p><strong>说明</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:149px"> <p>实例类型</p> </td> <td style="vertical-align:top; width:650px"> <p>选择实例类型和规格。</p> </td> </tr> </tbody> </table> <p><strong>镜像</strong></p> <table border="1" cellpadding="0" cellspacing="0" style="width:805px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:151px"> <p><strong>配置项</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:648px"> <p><strong>说明</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:151px"> <p>镜像</p> </td> <td style="vertical-align:top; width:648px"> <p>仅提供自定义镜像。</p> <p><strong>说明：</strong>需针对启用弹性伸缩的应用，首先在控制台申请一台ECS安装部署应用，并设置应用开机启动，把状态数据单独存放于独立的服务器中，数据、日志等存放于数据库或日志服务器。关机后选择制作镜像。</p> </td> </tr> <tr> <td style="vertical-align:top; width:151px"> <p>操作系统类型</p> </td> <td style="vertical-align:top; width:648px"> <p>选择已创建好自定义镜像的操作系统类型。</p> </td> </tr> </tbody> </table> <p><strong>磁盘配置</strong></p> <table border="1" cellpadding="0" cellspacing="0" style="width:803px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:152px"> <p><strong>配置项</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:645px"> <p><strong>说明</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:152px"> <p>数据盘</p> </td> <td style="vertical-align:top; width:645px"> <p>根据业务需要，选择是否添加数据盘。</p> </td> </tr> </tbody> </table> <p><strong>网络</strong></p> <table border="1" cellpadding="0" cellspacing="0" style="width:803px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:152px"> <p><strong>配置项</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:645px"> <p><strong>说明</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:152px"> <p>专有网络VPC</p> </td> <td style="vertical-align:top; width:645px"> <p>默认为伸缩组关联的负载均衡实例所在的专有网络VPC。</p> </td> </tr> <tr> <td style="vertical-align:top; width:152px"> <p>子网</p> </td> <td style="vertical-align:top; width:645px"> <p>选择子网，需要确保子网的可用IP数充足，若可用IP数不足，会导致伸缩组扩展活动失败。</p> </td> </tr> <tr> <td style="vertical-align:top; width:152px"> <p>安全组</p> </td> <td style="vertical-align:top; width:645px"> <p>选择是否绑定安全组。</p> </td> </tr> <tr> <td style="vertical-align:top; width:152px"> <p>后端端口</p> </td> <td style="vertical-align:top; width:645px"> <p>伸缩组实例后端端口，实例运行服务或应用使用端口，初次配置后不可更改，您在初次配置时可自行定义。</p> </td> </tr> <tr> <td style="vertical-align:top; width:152px"> <p>端口权重</p> </td> <td style="vertical-align:top; width:645px"> <p>选择端口权重。</p> </td> </tr> </tbody> </table> <p><strong>安全配置</strong></p> <table border="1" cellpadding="0" cellspacing="0" style="width:800px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:152px"> <p><strong>配置项</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:642px"> <p><strong>说明</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:152px"> <p>安全服务</p> </td> <td style="vertical-align:top; width:642px"> <p>为Linux操作系统免费提供安全服务，您可以选择是否需要PHS。</p> </td> </tr> </tbody> </table> <p><strong>配置描述</strong></p> <table border="1" cellpadding="0" cellspacing="0" style="width:797px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:152px"> <p><strong>配置项</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:639px"> <p><strong>说明</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:152px"> <p>描述</p> </td> <td style="vertical-align:top; width:639px"> <p>输入描述信息。</p> <p>&bull;&nbsp;&nbsp;&nbsp; 中文、英文字母、空格、数字、 @ 、下划线（_）、中划线（-）。</p> <p>&bull;&nbsp;&nbsp;&nbsp; 最长 128 个字符。</p> </td> </tr> </tbody> </table> <p><strong>系统配置</strong></p> <table border="1" cellpadding="0" cellspacing="0" style="width:797px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top; width:148px"> <p><strong>配置项</strong></p> </td> <td style="background-color:#ededed; vertical-align:top; width:643px"> <p><strong>说明</strong></p> </td> </tr> <tr> <td style="vertical-align:top; width:148px"> <p>描述</p> </td> <td style="vertical-align:top; width:643px"> <p>提供两种登录方式：密钥对、使用镜像密码。</p> <p>&bull;&nbsp;&nbsp;&nbsp; 密钥对：用户名为默认，可以选择SSH密钥或创建新密钥对。</p> <p>&bull;&nbsp;&nbsp;&nbsp; 使用镜像密码：镜像密码在创建镜像时设置。</p> </td> </tr> </tbody> </table> <p>6.&nbsp; 确认配置信息，单击<strong>确认</strong>。</p> <p><img src="https://obs-cn-shanghai.ocftcloud.com/pacloud/20192508120109-12c5705493bc.png" style="height:447px; width:830px" /></p> <p>&nbsp;</p> <p><span style="font-size:16px"><strong>执行结果</strong></span></p> <p>页面下方提示<strong>操作成功</strong>，刚刚配置的伸缩组状态仍为<strong>停用</strong>状态，操作列<strong>启用</strong>按钮变为橙色。</p> <p><img src="https://obs-cn-shanghai.ocftcloud.com/pacloud/20192508120130-1cb09c219912.png" style="height:47px; width:238px" /></p> <p>&nbsp;</p>