【openshift 安装】openshift-ansible 安装，

一. openshift 安装

1.1 安装前准备工作

• 免密码ssh登陆，参考ssh免密码登陆
• 添加域名至/etc/hosts
• 开启iptables服务，执行systemctl start iptables
• 修改节点名字，例如 修改hostnamectl set-hostname node-10-12-40-250

1.2 安装前系统准备工作

系统要求至少centos 7.3以上

安装基础包： 

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

更新系统至最新包：

# yum update

配置ansible，配置文件/etc/ansible/hosts

# Create an OSEv3 group that contains the masters and nodes groups
[OSEv3:children]
masters
nodes


# Set variables common for all OSEv3 hosts
[OSEv3:vars]
# SSH user, this user should allow ssh based auth without requiring a password
ansible_ssh_user=root
# If ansible_ssh_user is not root, ansible_become must be set to true
#ansible_become=true
openshift_deployment_type=origin


openshift_disable_check=docker_image_availability,docker_storage,memory_availability,disk_availability


# uncomment the following to enable htpasswd authentication; defaults to DenyAllPasswordIdentityProvider
#openshift_master_identity_providers=[{'name': 'htpasswd_auth', 'login': 'true', 'challenge': 'true', 'kind': 'HTPasswdPasswordIdentityProvider', 'filename': '/etc/origin/master/htpasswd'}]


# host group for masters
[masters]
master-40-228


# host group for etcd
[etcd]
master-40-228


# host group for nodes, includes region info
[nodes]
master-40-228 openshift_node_labels="{'region': 'infra', 'zone': 'default'}"
node-40-230 openshift_node_labels="{'region': 'primary', 'zone': 'west'}"
node-40-131 openshift_node_labels="{'region': 'primary', 'zone': 'west'}"


[new_nodes]
#node-51-84 openshift_node_labels="{'region': 'primary', 'zone': 'west'}"
#node-51-85 openshift_node_labels="{'region': 'primary', 'zone': 'west'}"
node-51-86 openshift_node_labels="{'region': 'primary', 'zone': 'west'}"

下载openshift-ansible，

执行安装命令： ansible-playbook playbook/byo/config.yaml

参考： https://docs.openshift.org/3.6/install_config/install/host_preparation.html