centos7下Openshift Origin高级安装

前期准备

1. 修改主机名

   确定主机名配置是否正确,可用hostnamectl修改主机名

   # hostnamectl set-hostname master.example.com

2. 启动网卡端口

   # vi /etc/sysconfig/network-scripts/ifcfg-ens33

     修改ONBOOT=yes

     重启网卡systemctl restart network

3. 修改各节点/etc/host文件

192.168.64.146 node1.example.com

192.168.64.147 master.example.com

4.   开启selinux和关闭防火墙

 SELINUX=enforcing

SELINUXTYPE=targeted

systemctl stop firewalld

systemctl disabled firewalld


一、安装基础包

1. 安装一下基本软件包

# yum install wget git net-tools bind-utils iptables-services bridge-utils bash-completion kexec-tools sos psacct

2. 将系统更新到最新的软件包:

# yum update

二、准备进行高级安装

如果你打算使用containerized installer来运行高级安装

1. 安装atomic

# yum install atomic

2. 安装Docker

如果你打算使用 RPM-based installer来运行高级安装

1. 安装Ansible

a. 安装EPEL存储库:

# yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

b. 全局禁用EPEL存储库,以便在安装的后续步骤中不会意外使用它:

# sed -i -e "s/^enabled=1/enabled=0/" /etc/yum.repos.d/epel.repo

c. 安装Ansible的软件包:

# yum -y --enablerepo=epel install ansible pyOpenSSL

2. GitHub 克隆openshift / openshift-ansible存储库,它提供了所需的剧本和配置文件:

# cd〜

# git clone https://github.com/openshift/openshift-ansible

# cd openshift-ansible

#git checkout release-3.6

三、安装Docker

# yum install docker

验证版本

# rpm -V docker

# docker version

四、配置Docker存储

1. 创建docker-pool

A. use an additional block device (建议选A

[root@master ~]# vi /etc/sysconfig/docker-storage-setup

DEVS=/dev/sdb

VG=docker-vg

运行docker-storage-setup并查看输出以确保docker-pool卷已创建:

# docker-storage-setup

centos7下Openshift Origin高级安装_第1张图片

B. Use an existing, specified volume group

[root@master ~]# vi /etc/sysconfig/docker-storage-setup

VG=docker-vg

# docker-storage-setup

C. Use the remaining free space from the volume group where your root file system is located.

# docker-storage-setup

2. 查看配置是否生效。在/ etc / sysconfig / docker -storage文件和docker-pool逻辑卷中应该有一个dm.thinpooldev值 :

[root@master ~]# cat /etc/sysconfig/docker-storage

[root@master ~]# lvs

3. 检查Docker是否正在运行:

# systemctl is-active docker

# systemctl enable docker

# systemctl start docker

如果Docker已经在运行,重新初始化Docker:

# systemctl stop docker

# rm -rf / var / lib / docker / *

# systemctl restart docker

五、安装etcd(数据库,master控制数据放在其中,减少对master的请求)

# yum -y install etcd

# systemctl enable etcd

# systemctl start etcd

六、实现SSH无密钥主机访问

# ssh-keygen -f /root/.ssh/id_rsa -N ''

# for host in master.example.com \

 node1.example.com; \

 do ssh-copy-id -i ~/.ssh/id_rsa.pub $host; \

 done

高级安装

一、 配置Ansible文件

1. 配置/etc/ansible/hosts

## 备份原生hosts文件,另存为hosts.org

# mv -f /etc/ansible/hosts /etc/ansible/hosts.org

##新创建一个文件

# touch /etc/ansible/hosts

# vi /etc/ansible/hosts

centos7下Openshift Origin高级安装_第2张图片

2. 运行高级安装

# ansible-playbook /root/openshift-ansible/playbooks/byo/config.yml

ansible-playbook /root/openshift-ansible/playbooks/adhoc/uninstall.yml   (卸载节点)

centos7下Openshift Origin高级安装_第3张图片

failed=0表示没有出现报错,安装成功。

二、 验证安装

# oc get nodes

# oc get nodes -o wide

# oc whoami   可以看到当前是以管理员的权限登录的集群。

# oc get all -o wide    查看资源列表。

# oc get pod --all-namespaces 查看各个组件

验证Web控制台是否安装正确
# https://master.example.com:8443/console

centos7下Openshift Origin高级安装_第4张图片

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