- hosts: Main-standby    #被管理主机组，详情见/etc/ansible/hosts文件
  vars:   #定义变量
    - installation_package: openGauss-Lite-3.0.0-openEuler-x86_64.tar.gz  #安装包
    - ansible_ip: 192.168.100.99  #ansible主机ip
  tasks:
    - name: Install dependencies packages    #安装依赖包
      yum:
        name:
          - flex 
          - bison 
          - ncurses-devel 
          - glibc-devel 
          - patch 
          - readline-devel 
          - libaio-devel
        state: present
    - name: Modify system configuration      #修改系统环境
      shell: |
        systemctl stop firewalld.service     #关闭防火墙
        systemctl disable firewalld.service
        sed -i '/^SELINUX=.*/ c\SELINUX=disabled' /etc/selinux/config  #关闭selinux
        echo "export LC_CTYPE=zh_CN.GB18030" >> /etc/profile    #统一字符集
        echo "export LC_ALL=zh_CN.GB18030" >> /etc/profile
        echo "export LANG=zh_CN.GB18030" >> /etc/profile
        source /etc/profile
        sed -i 's/^server/#server/g' /etc/chrony.conf           #时间同步
        sed -i "/^#server 0.*/ i\server {{ ansible_ip }} iburst"  /etc/chrony.conf
        systemctl restart chronyd.service
        swapoff -a    #关闭交换内存
        sed -i 's/^#RemoveIPC/RemoveIPC/' /etc/systemd/logind.conf  #关闭RemoveIPC
        systemctl daemon-reload
        systemctl restart systemd-logind
        echo "500 641280 500 500" > /proc/sys/kernel/sem     #修改信号集参数
    - name: Create omm user        #创建数据库专用用户
      user:
        name: omm
        state: present
    - name: Create installation directory   #创建数据目录和安装目录
      shell: |
        mkdir -p /home/omm/openGauss/data
        mkdir -p /home/omm/openGauss/install
    - name: Download opengauss-Lite package   #下载安装包
      get_url: 
        url: https://opengauss.obs.cn-south-1.myhuaweicloud.com/3.0.0/x86_openEuler/{{ installation_package }}
        dest: /tmp/
    - name: Decompression opengauss-Lite package  #解压安装包
      unarchive:
          src: /tmp/{{ installation_package }}
          dest: /home/omm/openGauss/
          copy: no
    - name: Directory authorization       #进行目录权限的给与
      shell: chown -R omm:omm /home/omm/openGauss/

- hosts: master
  vars:      #定义变量
    - master_ip: 192.168.100.101  #主节点ip
    - slave_ip: 192.168.100.102   #从节点ip
    - master_port: 36999   #本地端口
    - slave_port: 36999  #另外一台的端口（二者的端口号都要在1024--65535之间）
    - password: password123!  #密码
  tasks:
    - name: Start up opengauss-master      #安装主节点
      shell: >-
        su omm -l -c "echo {{password}} | sh /home/omm/openGauss/install.sh --mode primary -D ~/openGauss/data -R ~/openGauss/install -C 
        \"replconninfo1='localhost={{master_ip}} localport={{master_port}} remotehost={{slave_ip}} remoteport={{slave_port}}'\" --start"
- hosts: slave
  vars:      #定义变量
    - master_ip: 192.168.100.101  #主节点ip
    - slave_ip: 192.168.100.102   #从节点ip
    - master_port: 36999   #本地端口
    - slave_port: 36999  #另外一台的端口（二者的端口号都要在1024--65535之间）
    - password: password123!  #密码
  tasks:
    - name: Start up opengauss-slave       #安装从节点
      shell: >-
        su omm -l -c "echo {{password}} | sh /home/omm/openGauss/install.sh --mode standby -D ~/openGauss/data -R ~/openGauss/install -C 
        \"replconninfo1='localhost={{slave_ip}} localport={{slave_port}} remotehost={{master_ip}} remoteport={{master_port}}'\" --start"