五、DC/OS 增加节点

                  **DC/OS 增加节点**

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1、前期环境配置参考：
http://blog.csdn.net/huohuangfengcheng/article/details/53994851
http://blog.csdn.net/huohuangfengcheng/article/details/53977920

2、拷贝dcos-install.tar到要增加的节点，关于如何找到这个文件可以参考如下链接（https://docs.mesosphere.com/1.8/administration/installing/custom/gui/#backup）
scp dcos-install.tar root@dcos009:~/dcos-install.tar

3、创建程序的安装目录并解压文件
sudo mkdir -p /opt/dcos_install_tmp
sudo tar xf dcos-install.tar -C /opt/dcos_install_tmp

4、安装DC/OS在新增节点
增加private节点
$ sudo bash /opt/dcos_install_tmp/dcos_install.sh slave

增加public节点
$ sudo bash /opt/dcos_install_tmp/dcos_install.sh slave_public

5、验证
查询private节点个数
dcos node –json | jq –raw-output ‘.[] | select(.reserved_resources.slave_public == null) | .id’ | wc -l
查询public节点个数
dcos node –json | jq –raw-output ‘.[] | select(.reserved_resources.slave_public != null) | .id’ | wc -l