diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..06f46373a333332a8d757346274b35d8eb3e00df
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+downloaded_files
+ansible-docker/inventories/opengauss/credentials
+ansible-docker/inventories/opengauss/assembled_vars
\ No newline at end of file
diff --git a/01-deploy.yml b/01-deploy.yml
new file mode 100644
index 0000000000000000000000000000000000000000..73bdc435a70aa69e26577f1649340dd66b37a4ea
--- /dev/null
+++ b/01-deploy.yml
@@ -0,0 +1,5 @@
+- name: Deploy openGauss
+  hosts: openGauss
+  become: true
+  roles:
+    - openGauss
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..d3e2d9c0d470281e5c4ae0a78e3b757a9956832b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,59 @@
+# Ansible role for openGauss
+
+自动部署 openGauss，根据分组定义，自适应部署单点、一主一从、一主多从以及级联节点等架构模式。
+
+目前仅支持初次部署，不支持对集群架构做变更。
+
+# 已适配的系统
+
+* x86_64
+  * CentOS 7.6
+
+# 已适配的 openGauss 版本
+
+* 5.0.0
+
+# 优势特点
+
+1. 1 主 4 从 1 级联的架构，十分钟内部署完成（不含安装包的下载时间）。
+1. 自动匹配 CPU 架构以及操作系统。
+1. 支持自定义 cluster_config.xml.j2 模板，优先使用 `{{ inventory_dir }}/templates/openGauss/cluster_config.xml.j2`。
+1. 默认自动生成数据库管理员密码，也可自定义变量进行替换。全程自动化，无交互步骤。
+1. 部署完成后，从 `/root/.ssh/authorized_keys` 里移除相关公钥，而非删除 `/root/.ssh` 目录。
+1. 本地生成的公密钥、账号密码，均存放在 `{{ inventory_dir }}/credentials` 目录内。
+1. 支持自定义变量，自动与 `defaults/main.yml` 变量合并使用。例如
+
+    默认变量
+
+    ```
+    openGauss_env:
+      user_name: omm
+      user_group: dbgrp
+    ```
+
+    自定义变量文件 `{{ inventory_dir }}/group_vars/openGauss.yml`
+
+    ```
+    openGauss_env:
+      user_name: ommo
+    ```
+
+    合并后的可用变量
+
+    ```
+    combined_vars:
+      openGauss_env:
+        user_name: ommo
+        user_group: dbgrp
+    ```
+
+# 使用指南
+
+* [快速开始](docs/00-how-to.md)，适合熟悉 Ansible 的同学。
+* [创建 Ansible 容器](docs/01-ansible-in-docker.md)，使用 docker 快速搭建一个可以运行本项目的 ansible 环境，降低对操作系统的依赖。
+* [详细配置](docs/02-pre-set.md)
+* [开始部署](docs/03-deploy.md)
+
+# 开发指南
+
+（待补充）
\ No newline at end of file
diff --git a/ansible-docker/.dockerignore b/ansible-docker/.dockerignore
new file mode 100644
index 0000000000000000000000000000000000000000..1d247049b497da13e2a0a958c98dc7449681fc86
--- /dev/null
+++ b/ansible-docker/.dockerignore
@@ -0,0 +1,3 @@
+*.log
+.vagrant
+inventories
\ No newline at end of file
diff --git a/ansible-docker/.gitignore b/ansible-docker/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..e3f2c9d4cf9aa82c9e1bea6b3f656532502cd6a7
--- /dev/null
+++ b/ansible-docker/.gitignore
@@ -0,0 +1,4 @@
+*.log
+.vagrant
+inventories/vagrant/credentials
+inventories/vagrant/files
\ No newline at end of file
diff --git a/ansible-docker/Dockerfile b/ansible-docker/Dockerfile
new file mode 100644
index 0000000000000000000000000000000000000000..d4dccce37c6620bf3a79dba26bbbd813f685adb3
--- /dev/null
+++ b/ansible-docker/Dockerfile
@@ -0,0 +1,15 @@
+FROM alpine
+LABEL Creator="haibin.l@linkingcloud.cn"
+ARG TIMEZONE="Asia/Shanghai"
+
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.cloud.tencent.com/g' /etc/apk/repositories \
+  && apk --no-cache add bzip2 nano ansible fish byobu \
+    sshpass tzdata rsync wget curl net-tools tar unzip \
+    openssh-client py3-netaddr musl-locales py3-jmespath
+
+RUN byobu-select-backend tmux \
+  && byobu-ctrl-a screen \
+  && byobu-enable \
+  && ln -sf /usr/share/zoneinfo/$TIMEZONE /etc/localtime \
+  && sed -i 's/\/bin\/ash/\/usr\/bin\/fish/g' /etc/passwd \
+  && fish -c "alias pansible='ansible-playbook' && funcsave pansible"
\ No newline at end of file
diff --git a/ansible-docker/README.md b/ansible-docker/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..c36adb8daf8d0433e49ff0451c2501d8a404d939
--- /dev/null
+++ b/ansible-docker/README.md
@@ -0,0 +1,21 @@
+# 测试环境搭建
+
+1. （可选）Vagrantfile。默认启动 4 台 4U16G 的 Virtualbox 虚拟机，如果你的机器配置无法满足，请适当修改相关参数 `vb.memory` 和 `vb.cpus`。降低这 2 个参数可能会导致某些部署无法测试成功。
+1. Dockerfile。基于 Alpine Linux 容器镜像，制作一个运行 Ansible 的 Docker 镜像，解决某些离线环境里安装软件的问题。
+1. docker-compose.yml。Ansible 容器使用用例，请根据实际需要进行修改。
+
+## 步骤
+
+```
+# 启动虚拟机。（需要已安装 vagrant、virtualbox）
+vagrant up
+
+# 制作 ansible 容器镜像
+docker-compose build
+
+# 启动 ansible 容器
+docker-compose up -d
+
+# 进入容器环境
+docker exec -it ansible byobu
+```
diff --git a/ansible-docker/Vagrantfile b/ansible-docker/Vagrantfile
new file mode 100644
index 0000000000000000000000000000000000000000..548020a7cb3a631e4df96ef31901ed64daa58292
--- /dev/null
+++ b/ansible-docker/Vagrantfile
@@ -0,0 +1,26 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant.configure("2") do |config|
+
+  config.ssh.insert_key = false
+  config.vm.provider :virtualbox do |vb|
+    vb.memory = 4096
+    vb.cpus = 2
+    vb.customize [ "modifyvm", :id, "--uartmode1", "disconnected" ]
+    vb.linked_clone = true
+  end
+
+  #Disabling the default /vagrant share
+  config.vm.synced_folder ".", "/vagrant", disabled: true
+
+  # How many vm do you want?
+  N = 3
+
+  (1..N).each do |i|
+  config.vm.define "opengauss#{i}" do |node|
+    node.vm.box = "centos/7"
+    node.vm.network :private_network, ip: "192.168.56.#{10+i}"
+  end
+  end
+end
diff --git a/ansible-docker/ansible.cfg b/ansible-docker/ansible.cfg
new file mode 100644
index 0000000000000000000000000000000000000000..8a0805d52fb32abfebba861ec940f8d3ffc5e7d9
--- /dev/null
+++ b/ansible-docker/ansible.cfg
@@ -0,0 +1,14 @@
+[defaults]
+nocows = True
+inventory  = ./inventories/opengauss/hosts.ini
+roles_path = ~/.ansible/roles,/workdir/roles,./roles
+
+remote_tmp = $HOME/.ansible/tmp
+local_tmp  = $HOME/.ansible/tmp
+pipelining = True
+become = True
+host_key_checking = False
+deprecation_warnings = False
+callback_whitelist = profile_tasks
+display_skipped_hosts = False
+#stdout_callback = yaml
diff --git a/ansible-docker/docker-compose.yml b/ansible-docker/docker-compose.yml
new file mode 100644
index 0000000000000000000000000000000000000000..74bf0517dea6f053dc1fb2536af43c69e13bb0f4
--- /dev/null
+++ b/ansible-docker/docker-compose.yml
@@ -0,0 +1,19 @@
+version: "3.3"
+
+services:
+  ansible:
+    image: haibin.lee/ansible
+    container_name: ansible
+    hostname: ansible-in-docker
+    restart: always
+    build:
+      context: .
+    working_dir: /workdir
+    volumes:
+      - "./inventories:/etc/ansible/inventories"
+      - "../:/workdir"
+      - "./ansible.cfg:/etc/ansible/ansible.cfg"
+      - "~/.vagrant.d/insecure_private_key:/root/.vagrant.d/insecure_private_key"
+    entrypoint:
+      - "crond"
+      - "-f"
diff --git a/ansible-docker/inventories/opengauss/group_vars/all/defaults.yml b/ansible-docker/inventories/opengauss/group_vars/all/defaults.yml
new file mode 100644
index 0000000000000000000000000000000000000000..0c13c88c4850ef39713cb2e4546dbe7534195546
--- /dev/null
+++ b/ansible-docker/inventories/opengauss/group_vars/all/defaults.yml
@@ -0,0 +1 @@
+# ansible_python_interpreter: "python3"
\ No newline at end of file
diff --git a/ansible-docker/inventories/opengauss/hosts.ini b/ansible-docker/inventories/opengauss/hosts.ini
new file mode 100644
index 0000000000000000000000000000000000000000..5b39407827e3dc779ad1f98f7fc215c9d8e9c3d1
--- /dev/null
+++ b/ansible-docker/inventories/opengauss/hosts.ini
@@ -0,0 +1,28 @@
+; 主服务器组，仅设置 1 个目标机。
+[openGauss_master]
+192.168.56.11
+
+; 从服务器组，可设置若干个或留空。
+[openGauss_follower]
+192.168.56.12
+
+; 级联服务器组，可设置若干个或留空。
+[openGauss_cascade]
+192.168.56.13
+
+; 以上 3 个分组的合并组，勿动。
+[openGauss:children]
+openGauss_master
+openGauss_follower
+openGauss_cascade
+
+; 机器的 SSH 信息，请根据你的实际情况修改。
+[openGauss:vars]
+; ssh 用户名，如果不是 root 用户，请确保它有 sudo 权限。
+ansible_ssh_user=vagrant
+; ssh 密码
+ansible_ssh_pass=vagrant
+; ssh 端口
+ansible_ssh_port=22
+; ssh 私钥。如果你的环境没有密钥登录方式，请务必删除以下这行。
+ansible_ssh_private_key_file="~/.vagrant.d/insecure_private_key"
diff --git a/docs/00-how-to.md b/docs/00-how-to.md
new file mode 100644
index 0000000000000000000000000000000000000000..d63dd8e4ebca96e0b8e9782656678a38c0217cd2
--- /dev/null
+++ b/docs/00-how-to.md
@@ -0,0 +1,37 @@
+# hosts.ini 示例
+
+master 组仅可以配置 1 台机器。follower 可以多台。cascade 可选可为空。
+
+```
+[openGauss_master]
+192.168.56.11
+
+[openGauss_follower]
+192.168.56.12
+
+[openGauss_cascade]
+192.168.56.13
+
+[openGauss:children]
+openGauss_master
+openGauss_follower
+openGauss_cascade
+```
+
+# playbook.yml 示例
+
+```
+- name: Deploy openGauss database
+  hosts: openGauss
+  become: true
+  roles:
+    - openGauss
+```
+
+# 效果展示
+
+本地物理机，启动 6 台虚拟机，用时 9 分 30 秒完成 1 主 4 从 1 级联的架构部署。
+
+![用时](imgs/23-09-20_1243_661.png)
+
+![集群状态](imgs/23-09-20_923_628.png)
\ No newline at end of file
diff --git a/docs/01-ansible-in-docker.md b/docs/01-ansible-in-docker.md
new file mode 100644
index 0000000000000000000000000000000000000000..2182994f1640e0a8bf550ae8b903374a84b52efe
--- /dev/null
+++ b/docs/01-ansible-in-docker.md
@@ -0,0 +1,17 @@
+进入 `ansible-docker` 目录，按以下步骤创建容器。
+
+# 制作 ansible 容器镜像
+
+`docker-compose build`
+
+# 启动 ansible 容器
+
+`docker-compose up -d`
+
+# 进入容器环境
+
+`docker exec -it ansible byobu`
+
+# 声明
+
+我个人比较喜爱使用 fish 作为默认的 shell，以及使用 byobu 作为单窗口多终端的工作环境。如果您不喜欢，可以自行修改 Dockerfile 的内容。
\ No newline at end of file
diff --git a/docs/02-pre-set.md b/docs/02-pre-set.md
new file mode 100644
index 0000000000000000000000000000000000000000..f27e230e5ca11212faa9936fa5057c43832aef0c
--- /dev/null
+++ b/docs/02-pre-set.md
@@ -0,0 +1,73 @@
+# 执行 playbook 之前的准备工作。
+
+## 修改 `ansible-docker\inventories\opengauss\hosts.ini` 文件
+
+这个文件是对你要部署的机器，进行一个分组编排，以及 ssh 信息。以 1 主 1 从 1 级联的架构为例，它的内容如下：
+
+```
+; 主服务器组，仅设置 1 个目标机。
+[openGauss_master]
+192.168.56.11
+
+; 从服务器组，可设置若干个或留空。
+[openGauss_follower]
+192.168.56.12
+
+; 级联服务器组，可设置若干个或留空。
+[openGauss_cascade]
+192.168.56.13
+
+; 以上 3 个分组的合并组，勿动。
+[openGauss:children]
+openGauss_master
+openGauss_follower
+openGauss_cascade
+
+; 机器的 SSH 信息，请根据你的实际情况修改。
+[openGauss:vars]
+; ssh 用户名，如果不是 root 用户，请确保它有 sudo 权限。
+ansible_ssh_user=vagrant
+; ssh 密码
+ansible_ssh_pass=vagrant
+; ssh 端口
+ansible_ssh_port=22
+; ssh 私钥。如果你的环境没有密钥登录方式，请务必删除以下这行。
+ansible_ssh_private_key_file="~/.vagrant.d/insecure_private_key"
+```
+
+## 修改默认运行值。
+
+本项目的默认配置参数，存放在 `roles\openGauss\defaults\main.yml`，你可以参考这个文件的内容，根据实际需要做一些定制。*** 但不建议直接修改它，以考虑对不同的服务器仓库进行维护 ***
+
+建议的自定义方法，是将 `roles\openGauss\defaults\main.yml` 拷贝到 `ansible-docker\inventories\opengauss\group_vars\openGauss.yml`，再进行编辑。
+
+部分变量是可以替换或扩展的。例如
+
+```
+# Sysctl 的配置，可自行扩展。
+openGauss_sysctl:
+  net.ipv4.tcp_retries1: 5
+  net.ipv4.tcp_syn_retries: 5
+```
+
+你可以改成
+
+```
+# Sysctl 的配置，可自行扩展。
+openGauss_sysctl:
+  net.ipv4.tcp_retries1: 5
+  net.ipv4.tcp_syn_retries: 3
+  net.ipv4.tcp_synack_retries： 5
+```
+
+通过 `roles\pre-tasks\tasks\vars_combine.yml` 的处理后，我们可以得到一组合并后的变量
+
+```
+combined_vars:
+  openGauss_sysctl:
+    net.ipv4.tcp_retries1: 5
+    net.ipv4.tcp_syn_retries: 3
+    net.ipv4.tcp_synack_retries： 5
+```
+
+整个部署任务，都会大量使用 combined_vars 里的变量。
diff --git a/docs/03-deploy.md b/docs/03-deploy.md
new file mode 100644
index 0000000000000000000000000000000000000000..68e58037109ccc5e36432c066f73e6da2e32e6cc
--- /dev/null
+++ b/docs/03-deploy.md
@@ -0,0 +1,104 @@
+# 开始部署
+
+建议使用前文提到的 Ansible 容器执行部署，避免系统差异、ansible 版本差异等一系列问题造成的运行失败。本项目全部基于 Ansible in Docker 来测试开发。
+
+1. 进入 ansible 环境
+
+    ```
+    docker exec -it ansible byobu
+    ```
+
+    关于 byobu 的使用，大家可自行搜索一些教程。
+
+1. 执行部署
+
+    ```
+    pansible 01-deploy.yml
+    ```
+
+    这里的 `pansible` 是我预置的命令别名，对应的是 `ansible-playbook`。
+
+# 顺利部署后，你可看到一下输出内容
+
+## 单节点
+
+![单节点](imgs/1695614019309.png)
+
+对应的 hosts.ini 分组编排内容
+
+```
+[openGauss_master]
+192.168.56.11
+
+[openGauss_follower]
+
+[openGauss_cascade]
+
+[openGauss:children]
+openGauss_master
+openGauss_follower
+openGauss_cascade
+```
+
+## 1 主 1 从
+
+![1主1从](imgs/1695614019287.png)
+对应的 hosts.ini 分组编排内容
+
+```
+[openGauss_master]
+192.168.56.12
+
+[openGauss_follower]
+192.168.56.13
+
+[openGauss_cascade]
+
+[openGauss:children]
+openGauss_master
+openGauss_follower
+openGauss_cascade
+```
+
+## 1 主 1 从 1 级联
+
+![1主1从1级联](imgs/1695614019263.png)
+对应的 hosts.ini 分组编排内容
+
+```
+[openGauss_master]
+192.168.56.14
+
+[openGauss_follower]
+192.168.56.15
+
+[openGauss_cascade]
+192.168.56.16
+
+[openGauss:children]
+openGauss_master
+openGauss_follower
+openGauss_cascade
+```
+
+## 1 主 2 从
+
+![1主2从](imgs/1695614019240.png)
+对应的 hosts.ini 分组编排内容
+
+```
+[openGauss_master]
+192.168.56.17
+
+[openGauss_follower]
+192.168.56.18
+192.168.56.19
+
+[openGauss_cascade]
+192.168.56.16
+
+[openGauss:children]
+openGauss_master
+openGauss_follower
+openGauss_cascade
+```
\ No newline at end of file
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diff --git a/roles/openGauss/README.md b/roles/openGauss/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..722c7285352a3b5a607e00dc004f91456f2de635
--- /dev/null
+++ b/roles/openGauss/README.md
@@ -0,0 +1,82 @@
+# Ansible role for openGauss
+
+自动部署 openGauss，根据分组定义，自适应部署单点、一主一从、一主多从以及级联节点等架构模式。
+
+目前仅支持初次部署，不支持对集群架构做变更。
+
+# 优势特点
+
+1. 1 主 4 从 1 级联的架构，十分钟内部署完成（不含安装包的下载时间）。
+1. 自动匹配 CPU 架构以及操作系统。
+1. 支持自定义 cluster_config.xml.j2 模板，优先使用 `{{ inventory_dir }}/templates/openGauss/cluster_config.xml.j2`。
+1. 默认自动生成数据库管理员密码，也可自定义变量进行替换。全程自动化，无交互步骤。
+1. 部署完成后，从 `/root/.ssh/authorized_keys` 里移除相关公钥，而非删除 `/root/.ssh` 目录。
+1. 本地生成的公密钥、账号密码，均存放在 `{{ inventory_dir }}/credentials` 目录内。
+1. 支持自定义变量，自动与 `defaults/main.yml` 变量合并使用。例如
+
+    默认变量
+
+    ```
+    openGauss_env:
+      user_name: omm
+      user_group: dbgrp
+    ```
+
+    自定义变量文件 `{{ inventory_dir }}/group_vars/openGauss.yml`
+
+    ```
+    openGauss_env:
+      user_name: ommo
+    ```
+
+    合并后的可用变量
+
+    ```
+    combined_vars:
+      openGauss_env:
+        user_name: ommo
+        user_group: dbgrp
+    ```
+
+# 已匹配系统
+
+* x86_64
+  * CentOS 7.6
+
+# hosts.ini 示例
+
+master 组仅可以配置 1 台机器。follower 可以多台。cascade 可选可为空。
+
+```
+[openGauss_master]
+192.168.56.11
+
+[openGauss_follower]
+192.168.56.12
+
+[openGauss_cascade]
+192.168.56.13
+
+[openGauss:children]
+openGauss_master
+openGauss_follower
+openGauss_cascade
+```
+
+# playbook.yml 示例
+
+```
+- name: Deploy openGauss database
+  hosts: openGauss
+  become: true
+  roles:
+    - openGauss
+```
+
+# 效果展示
+
+本地物理机，启动 6 台虚拟机，用时 9 分 30 秒完成 1 主 4 从 1 级联的架构部署。
+
+![用时](files/23-09-20_1243_661.png)
+
+![集群状态](files/23-09-20_923_628.png)
diff --git a/roles/openGauss/defaults/main.yml b/roles/openGauss/defaults/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..02883224eae97df2c19b0a520f22ba7e72c9d7c2
--- /dev/null
+++ b/roles/openGauss/defaults/main.yml
@@ -0,0 +1,52 @@
+---
+# defaults file for openGauss
+
+# 安装版本
+openGauss_version: 5.0.0
+
+# 安装目录
+openGauss_home: /opt/openGauss
+
+# 其它目录，对应 cluster_config.xml 的内容。具体请看 https://docs.opengauss.org/zh/docs/5.0.0/docs/InstallationGuide/%E5%88%9B%E5%BB%BAXML%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6.html
+openGauss_paths:
+  gaussdbAppPath: "{{ openGauss_home }}/install/app"
+  gaussdbLogPath: "/var/log/openGauss"
+  tmpMppdbPath: "{{ openGauss_home }}/tmp"
+  corePath: "{{ openGauss_home }}/corefile"
+  gaussdbToolPath: "{{ openGauss_home }}/install/om"
+  dataPath: "{{ openGauss_home }}/data"
+
+# 环境设置。
+openGauss_env:
+  user_name: omm
+  user_group: dbgrp
+  user_pass: "{{ lookup('password', inventory_dir + '/credentials/openGauss_omm_pass', chars=['ascii_letters', 'digits']) | password_hash }}"
+  iface_mtu: 8192
+  clusterName: openGauss
+  dataPortBase: 15400
+  cmServerPortBase: 15300
+  cmServerPortStandby: 15500
+  azName: AZ1
+
+# 数据库安装配置
+openGauss_db_set:
+  locale: en_US.utf8
+  root_pass: "{{ lookup('password', inventory_dir + '/credentials/openGauss_root_pass', chars=['ascii_letters', 'digits'], length=16) }}"
+
+# Sysctl 的配置，可自行扩展。
+# 参考官方文档->初始化安装环境->配置操作系统参数
+openGauss_sysctl:
+  net.ipv4.tcp_retries1: 5
+  net.ipv4.tcp_syn_retries: 5
+  net.ipv4.tcp_synack_retries: 5
+  net.ipv4.tcp_fin_timeout: 60
+
+# 安装包的下载链接。按 CPU 架构、操作系统及版本做区分。例如 openEuler_22 表示是针对 openEuler 22.03 版本的下载链接。
+openGauss_download:
+  aarch64: 
+    openEuler_22: "https://opengauss.obs.cn-south-1.myhuaweicloud.com/{{ openGauss_version }}/arm_2203/openGauss-{{ openGauss_version }}-openEuler-64bit-all.tar.gz"
+    openEuler_20: "https://opengauss.obs.cn-south-1.myhuaweicloud.com/{{ openGauss_version }}/arm/openGauss-{{ openGauss_version }}-openEuler-64bit-all.tar.gz"
+  x86_64: 
+    openEuler_22: "https://opengauss.obs.cn-south-1.myhuaweicloud.com/{{ openGauss_version }}/x86_openEuler_2203/openGauss-{{ openGauss_version }}-openEuler-64bit-all.tar.gz"
+    openEuler_20: "https://opengauss.obs.cn-south-1.myhuaweicloud.com/{{ openGauss_version }}/x86_openEuler/openGauss-{{ openGauss_version }}-openEuler-64bit-all.tar.gz"
+    CentOS_7:  "https://opengauss.obs.cn-south-1.myhuaweicloud.com/{{ openGauss_version }}/x86/openGauss-{{ openGauss_version }}-CentOS-64bit-all.tar.gz"
\ No newline at end of file
diff --git a/roles/openGauss/handlers/main.yml b/roles/openGauss/handlers/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..b24a3cd7b499c1e177621bc0218fa1da25f73bae
--- /dev/null
+++ b/roles/openGauss/handlers/main.yml
@@ -0,0 +1,2 @@
+---
+# handlers file for openGauss
diff --git a/roles/openGauss/meta/main.yml b/roles/openGauss/meta/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..4c3689d8406ab31181bc16cdf7b07c56665ab984
--- /dev/null
+++ b/roles/openGauss/meta/main.yml
@@ -0,0 +1,4 @@
+dependencies: 
+  - name: pre-tasks
+    tags:
+      - always
\ No newline at end of file
diff --git a/roles/openGauss/tasks/install/cleanup.yml b/roles/openGauss/tasks/install/cleanup.yml
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/roles/openGauss/tasks/install/install.yml b/roles/openGauss/tasks/install/install.yml
new file mode 100644
index 0000000000000000000000000000000000000000..3249ec1b9d5e6b0fe615eec426bee6b79857f4f2
--- /dev/null
+++ b/roles/openGauss/tasks/install/install.yml
@@ -0,0 +1,27 @@
+- name: Create /opt/software/openGauss/cluster_config.xml
+  template:
+    src: "{{ item }}"
+    dest: "/opt/software/openGauss/cluster_config.xml"
+    owner: "{{ og_user }}"
+    group: "{{ og_group }}"
+    backup: true
+    lstrip_blocks: true
+  with_first_found:
+    - "{{ inventory_dir }}/templates/openGauss/cluster_config.xml.j2"
+    - "cluster_config.xml.j2"
+
+- name: Starting pre install
+  command: "python3 gs_preinstall -U {{ og_user }} -G {{ og_group }} -X /opt/software/openGauss/cluster_config.xml --non-interactive"
+  args:
+    chdir: "/opt/software/openGauss/script"
+  changed_when: false
+
+- name: Deploy openGauss
+  shell: |
+    . ~/.bashrc && \
+    python3 gs_install \
+      -X /opt/software/openGauss/cluster_config.xml \
+      --gsinit-parameter="--pwpasswd={{ combined_vars.openGauss_db_set.root_pass }}"
+  args:
+    chdir: "{{ og_home }}/install/om/script"
+  become_user: "{{ og_user }}"
diff --git a/roles/openGauss/tasks/install/ssh.yml b/roles/openGauss/tasks/install/ssh.yml
new file mode 100644
index 0000000000000000000000000000000000000000..757a82ca8c65e3ec90e4d6187e9241867ae81156
--- /dev/null
+++ b/roles/openGauss/tasks/install/ssh.yml
@@ -0,0 +1,88 @@
+- name: "Create {{ og_ssh.home }}/.ssh"
+  file:
+    path: "{{ og_ssh.home }}/.ssh"
+    state: directory
+    mode: 0700
+    owner: "{{ og_ssh.user }}"
+    group: "{{ og_ssh.group }}"
+
+- name: Generate ssh keys
+  block: 
+    - name: "Create {{ inventory_dir }}/credentials"
+      file:
+        path: "{{ inventory_dir }}/credentials"
+        state: directory
+
+    - name: Generate openGauss_id_om
+      openssh_keypair:
+        path: "{{ inventory_dir }}/credentials/openGauss_id_om"
+        type: ed25519
+        regenerate: never
+
+    - name: Generate openGauss_id_rsa
+      openssh_keypair:
+        path: "{{ inventory_dir }}/credentials/openGauss_id_rsa"
+        regenerate: never
+  delegate_to: localhost
+  become: false
+  run_once: true
+
+- name: Upload ssh keys
+  copy:
+    src: "{{ og_key }}"
+    dest: "{{ og_ssh.home }}/.ssh/{{ og_key | basename | replace('openGauss_', '') }}"
+    mode: 0400
+    owner: "{{ og_ssh.user }}"
+    group: "{{ og_ssh.group }}"
+    backup: true
+  with_fileglob:
+    - "{{ inventory_dir }}/credentials/openGauss_id*"
+  loop_control:
+    loop_var: og_key
+    label: "{{ og_ssh.home }}/.ssh/{{ og_key | basename | replace('openGauss_', '') }}"
+
+- name: Add authorized key
+  authorized_key:
+    user: "{{ og_ssh.user }}"
+    state: present
+    key: "{{ lookup('file', pub_key) }}"
+  with_fileglob:
+    - "{{ inventory_dir }}/credentials/openGauss_id*.pub"
+  loop_control:
+    loop_var: pub_key
+    label: "{{ og_ssh.home }}/.ssh/{{ pub_key | basename | replace('openGauss_', '') }}"
+
+# - name: "Setup {{ og_ssh.home }}/.ssh/config"
+#   blockinfile:
+#     create: true
+#     path: "{{ og_ssh.home }}/.ssh/config"
+#     owner: "{{ og_ssh.user }}"
+#     group: "{{ og_ssh.group }}"
+#     block: |
+#       Host *
+#         StrictHostKeyChecking no
+#         UserKnownHostsFile    /dev/null
+
+- name: Scan hosts key
+  command: "ssh-keyscan -p {{ port }} {{ node }},opengauss{{ ansible_loop.index }}"
+  changed_when: false
+  loop: "{{ groups['openGauss'] | sort }}"
+  loop_control:
+    loop_var: node
+    extended: true
+  vars:
+    port: "{{ ansible_ssh_port | default('22') }}"
+  register: known_host_keys
+
+- name: "Update {{ og_ssh.home }}/.ssh/known_hosts"
+  blockinfile:
+    path: "{{ og_ssh.home }}/.ssh/known_hosts"
+    owner: "{{ og_ssh.user }}"
+    group: "{{ og_ssh.group }}"
+    create: true
+    block: |
+      {% for key in (host_keys | sort) %}
+      {{ key }}
+      {% endfor %}
+  vars:
+    host_keys: "{{ known_host_keys.results | map(attribute='stdout_lines') | flatten }}"
\ No newline at end of file
diff --git a/roles/openGauss/tasks/install/upload.yml b/roles/openGauss/tasks/install/upload.yml
new file mode 100644
index 0000000000000000000000000000000000000000..1df27c90b52477f96c235ad66ab87da1a8405332
--- /dev/null
+++ b/roles/openGauss/tasks/install/upload.yml
@@ -0,0 +1,43 @@
+- name: Upload and extract files
+  block:
+    - name: Create /opt/software/openGauss
+      file:
+        path: /opt/software/openGauss
+        state: directory
+        # owner: "{{ og_user }}"
+        # group: "{{ og_group }}"
+        recurse: true
+
+    - name: "Extracting {{ og_pkg_url | basename }}"
+      unarchive:
+        src: "{{ playbook_dir }}/downloaded_files/{{ og_pkg_url | basename }}"
+        dest: /opt/software/openGauss/
+        # owner: "{{ og_user }}"
+        # group: "{{ og_group }}"
+
+    - name: "Extracting {{ og_pkg_url | basename | replace('all', 'om') }}"
+      unarchive:
+        remote_src: true
+        src: "/opt/software/openGauss/{{ og_pkg_url | basename | replace('all', 'om') }}"
+        dest: "/opt/software/openGauss/"
+        # owner: "{{ og_user }}"
+        # group: "{{ og_group }}"
+
+  rescue:
+    - name: "Get {{ og_pkg_url }}"
+      block:
+        - name: "Create {{ playbook_dir }}/downloaded_files"
+          file:
+            path: "{{ playbook_dir }}/downloaded_files"
+            state: directory
+
+        - name: Downloading
+          get_url:
+            url: "{{ og_pkg_url }}"
+            dest: "{{ playbook_dir }}/downloaded_files/"
+      run_once: true
+      delegate_to: localhost
+      become: false
+    
+    - include_tasks: install/upload.yml
+
diff --git a/roles/openGauss/tasks/install/user.yml b/roles/openGauss/tasks/install/user.yml
new file mode 100644
index 0000000000000000000000000000000000000000..cc69a0a45c2e0b5f0a23605fa1108c725262a7bc
--- /dev/null
+++ b/roles/openGauss/tasks/install/user.yml
@@ -0,0 +1,28 @@
+- name: "Create group '{{ og_group }}'"
+  group:
+    name: "{{ og_group }}"
+
+- name: "Create user '{{ og_user }}'"
+  user:
+    name: "{{ og_user }}"
+    group: "{{ og_group }}"
+    shell: "{{ ansible_user_shell }}"
+    password: "{{ og_user_pass }}"
+    update_password: on_create
+
+# - name: Touch user profile
+#   file:
+#     path: "/home/{{ og_user }}/.bashrc"
+#     state: touch
+#     owner: "{{ og_user }}"
+#     group: "{{ og_group }}"
+
+# - name: Create paths
+#   file:
+#     path: "{{ openGauss_home }}/install"
+#     state: directory
+#     owner: "{{ og_user }}"
+#     group: "{{ og_group }}"
+#   # with_dict: "{{ og_paths }}"
+#   # loop_control:
+#   #   label: "{{ item.value }}"
\ No newline at end of file
diff --git a/roles/openGauss/tasks/main.yml b/roles/openGauss/tasks/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..81e64f31ae73c728b7e4866038aad27bdc7a90d1
--- /dev/null
+++ b/roles/openGauss/tasks/main.yml
@@ -0,0 +1,92 @@
+---
+# tasks file for openGauss
+ 
+- name: Tasks always run
+  block:
+    - name: Combine vars
+      import_role:
+        name: "pre-tasks"
+        tasks_from: "vars_combine.yml"
+
+    - name: Set runtime facts
+      import_tasks: runtime_facts.yml
+
+    - name: Config /etc/sysctl.d/50-opengauss.conf
+      sysctl:
+        sysctl_file: /etc/sysctl.d/50-opengauss.conf
+        name: "{{ sysctl.key }}"
+        value: "{{ sysctl.value }}"
+      with_dict: "{{ combined_vars.openGauss_sysctl }}"
+      loop_control:
+        label: "{{ sysctl.key }} = {{ sysctl.value }}"
+        loop_var: sysctl
+  tags: always
+
+- name: Deploy openGauss
+  block:
+    - name: Check cluster status
+      shell: ". ~/.bashrc && gs_om -t status --detail"
+      changed_when: false
+      args:
+        chdir: "{{ og_home }}/install/om/script"
+      become_user: "{{ og_user }}"
+      run_once: true
+      register: cluster_detail
+
+  rescue:
+    - name: Common sets for all distribution
+      import_tasks: os/common_set.yml
+
+    - name: Custom sets by distribution
+      include_tasks: "{{ item }}"
+      with_first_found:
+        - "os/{{ ansible_distribution }}.yml"
+        - "os/not_supported.yml"
+
+    - name: Custom sets by os family
+      include_tasks: "{{ item }}"
+      with_first_found:
+        - "os/{{ ansible_os_family }}.yml"
+        - "os/not_supported.yml"
+
+    - import_tasks: install/user.yml
+
+    - include_tasks: install/ssh.yml
+      with_items:
+        - user: root
+          group: root
+          home: /root
+        - user: "{{ og_user }}"
+          group: "{{ og_group }}"
+          home: "/home/{{ og_user }}"
+      loop_control:
+        loop_var: og_ssh
+
+    - block:    
+        - import_tasks: install/upload.yml
+        - import_tasks: install/install.yml
+      run_once: true
+    
+    - name: Check cluster status
+      shell: ". ~/.bashrc && gs_om -t status --detail"
+      changed_when: false
+      args:
+        chdir: "{{ og_home }}/install/om/script"
+      become_user: "{{ og_user }}"
+      run_once: true
+      register: cluster_detail
+
+  always:
+    - name: Remove authorized key
+      authorized_key:
+        user: root
+        state: absent
+        key: "{{ lookup('file', item) }}"
+      with_fileglob:
+        - "{{ inventory_dir }}/credentials/openGauss_id_*.pub"
+    
+    - name: Print cluster detail
+      debug:
+        msg: |
+          {{ cluster_detail.stdout_lines }}
+      run_once: true
\ No newline at end of file
diff --git a/roles/openGauss/tasks/os/CentOS.yml b/roles/openGauss/tasks/os/CentOS.yml
new file mode 100644
index 0000000000000000000000000000000000000000..eb44c2ff3c3657fcf68717bee0c4964c24d0bbc0
--- /dev/null
+++ b/roles/openGauss/tasks/os/CentOS.yml
@@ -0,0 +1,19 @@
+- name: Install epel-release
+  package:
+    name: epel-release
+    
+- name: Install dependencies
+  package:
+    name:
+      - python36
+      - libaio-devel
+      - flex
+      - bison
+      - ncurses-devel
+      - glibc-devel
+      - patch
+      - redhat-lsb-core
+      - readline-devel
+      - nano
+      - htop
+
diff --git a/roles/openGauss/tasks/os/Debian.yml b/roles/openGauss/tasks/os/Debian.yml
new file mode 100644
index 0000000000000000000000000000000000000000..31f42991594ec5e13dcc06b472a7273b5761736b
--- /dev/null
+++ b/roles/openGauss/tasks/os/Debian.yml
@@ -0,0 +1,8 @@
+- name: Install dependencies
+  apt:
+    name:
+      - libaio-dev
+      - flex
+      - bison
+      - patch
+      - readline-common
\ No newline at end of file
diff --git a/roles/openGauss/tasks/os/RedHat.yml b/roles/openGauss/tasks/os/RedHat.yml
new file mode 100644
index 0000000000000000000000000000000000000000..7fa8834e1362ed6738c3dbdeaf8942e55d466670
--- /dev/null
+++ b/roles/openGauss/tasks/os/RedHat.yml
@@ -0,0 +1,14 @@
+- name: Disable firewalld
+  service:
+    name: firewalld
+    state: stopped
+    enabled: false
+
+- name: "Config MTU in /etc/sysconfig/network-scripts/ifcfg-{{ og_back_iface }}"
+  ini_file:
+    path: "/etc/sysconfig/network-scripts/ifcfg-{{ og_back_iface }}"
+    section: null
+    option: MTU
+    value: "{{ combined_vars.openGauss_env.iface_mtu }}"
+    backup: true
+    no_extra_spaces: true
\ No newline at end of file
diff --git a/roles/openGauss/tasks/os/common_set.yml b/roles/openGauss/tasks/os/common_set.yml
new file mode 100644
index 0000000000000000000000000000000000000000..5f1e5f10bda9ea657edae86033d2dc71f084b44d
--- /dev/null
+++ b/roles/openGauss/tasks/os/common_set.yml
@@ -0,0 +1,78 @@
+- name: Set hostname
+  hostname:
+    name: "opengauss{{ ansible_loop.index }}"
+  loop: "{{ groups['openGauss'] | sort }}"
+  loop_control:
+    extended: true
+    loop_var: node
+    label: "opengauss{{ ansible_loop.index }}"
+  when: "node == inventory_hostname"
+
+- name: Disable selinux
+  selinux:
+    state: disabled
+  when: "ansible_selinux.status != 'disabled'"
+
+- name: "Set timezone to {{ global_timezone | default('Asia/Shanghai') }}"
+  timezone:
+    name: "{{ global_timezone | default('Asia/Shanghai') }}"
+
+- name: Config /etc/systemd/logind.conf
+  ini_file:
+    path: /etc/systemd/logind.conf
+    section: Login
+    option: RemoveIPC
+    value: 'no'
+
+- name: Config /usr/lib/systemd/system/systemd-logind.service
+  ini_file:
+    path: /usr/lib/systemd/system/systemd-logind.service
+    section: Service
+    option: RemoveIPC
+    value: 'no'
+  register: systemd_logind
+
+- name: Restart systemd-logind.service
+  service:
+    name: systemd-logind
+    state: restarted
+    enabled: true
+  when: "systemd_logind is changed"
+
+- name: Disable history command logs
+  lineinfile:
+    path: /etc/profile
+    line: "HISTSIZE=0"
+    regex: "^HISTSIZE="
+    backup: true
+
+- name: Install dependencies
+  package:
+    name:
+      - bzip2
+      - expect
+      - net-tools
+    state: latest
+    update_cache: true
+
+- name: Config /etc/hosts
+  blockinfile:
+    path: /etc/hosts
+    marker: "# {mark} OPENGAUSS NODES"
+    block: |
+      {% for node in (groups['openGauss'] | sort) %}
+      {{ node }}  opengauss{{ loop.index }} #Gauss OM IP Hosts Mapping
+      {% endfor %}
+
+- name: Get iface name
+  shell: "ip a | grep {{ backIp1 | default(inventory_hostname) }} | awk '{print $NF}'"
+  changed_when: false
+  register: backIface
+
+- name: Set og_back_iface
+  set_fact:
+    og_back_iface: "{{ backIface.stdout | trim }}"
+
+- name: Config MTU on the fly
+  command: "ifconfig {{ og_back_iface }} mtu {{ combined_vars.openGauss_env.iface_mtu }}"
+  changed_when: false
\ No newline at end of file
diff --git a/roles/openGauss/tasks/os/not_supported.yml b/roles/openGauss/tasks/os/not_supported.yml
new file mode 100644
index 0000000000000000000000000000000000000000..253883e703099590ffebd3ff7a6a4162818569c0
--- /dev/null
+++ b/roles/openGauss/tasks/os/not_supported.yml
@@ -0,0 +1,5 @@
+- debug:
+    msg: "'{{ ansible_distribution }}' is not supported"
+
+- name: Play aborted
+  meta: end_play
\ No newline at end of file
diff --git a/roles/openGauss/tasks/runtime_facts.yml b/roles/openGauss/tasks/runtime_facts.yml
new file mode 100644
index 0000000000000000000000000000000000000000..9006508f5e2f60538fc49d25a846fb0322bd7be1
--- /dev/null
+++ b/roles/openGauss/tasks/runtime_facts.yml
@@ -0,0 +1,19 @@
+- name: Set runtime facts
+  set_fact:
+    og_user: "{{ combined_vars.openGauss_env.user_name }}"
+    og_group: "{{ combined_vars.openGauss_env.user_group }}"
+    og_user_pass: "{{ combined_vars.openGauss_env.user_pass }}"
+    og_home: "{{ combined_vars.openGauss_home }}"
+    og_paths: "{{ combined_vars.openGauss_paths }}"
+    og_pkg_url: "{{ combined_vars.openGauss_download[ansible_architecture][ansible_distribution + '_' + ansible_distribution_major_version] }}"
+    og_ver: "{{ combined_vars.openGauss_version }}"
+    og_ip_list: "{{ groups['openGauss'] | sort | join(',') }}"
+    og_host_list: >-
+      {%- for cm_node in (groups['openGauss'] | sort) -%}      
+        opengauss{{ loop.index }}{{ (loop.nextitem is defined) | ternary(',', '') }}
+      {%- endfor -%}
+    og_hostname: >-
+      {%- for cm_node in (groups['openGauss'] | sort) if cm_node == inventory_hostname -%}      
+        opengauss{{ loop.index }}
+      {%- endfor -%}
+    og_data_path: "{{ combined_vars.openGauss_paths.dataPath }}"
diff --git a/roles/openGauss/templates/cluster_config.xml.j2 b/roles/openGauss/templates/cluster_config.xml.j2
new file mode 100644
index 0000000000000000000000000000000000000000..8485733e91c9018bd42258473b0538c7aed80fa5
--- /dev/null
+++ b/roles/openGauss/templates/cluster_config.xml.j2
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ROOT>
+  <CLUSTER>
+    <PARAM name="clusterName" value="{{ combined_vars.openGauss_env.clusterName }}" />
+    <PARAM name="nodeNames" value="{{ og_host_list }}"/>
+    <PARAM name="gaussdbAppPath" value="{{ combined_vars.openGauss_paths.gaussdbAppPath }}" />
+    <PARAM name="gaussdbLogPath" value="{{ combined_vars.openGauss_paths.gaussdbLogPath }}" />
+    <PARAM name="tmpMppdbPath" value="{{ combined_vars.openGauss_paths.tmpMppdbPath }}"/>
+    <PARAM name="gaussdbToolPath" value="{{ combined_vars.openGauss_paths.gaussdbToolPath }}" />
+    <PARAM name="corePath" value="{{ combined_vars.openGauss_paths.corePath }}"/>
+    <PARAM name="backIp1s" value="{{ og_ip_list }}"/>
+  </CLUSTER>
+  
+  <DEVICELIST>
+{% for node in (groups['openGauss'] | sort) %}
+
+    <DEVICE sn="opengauss{{ loop.index }}">
+      <PARAM name="name" value="opengauss{{ loop.index }}"/>
+      <PARAM name="azName" value="{{ combined_vars.openGauss_env.azName | default('AZ1') }}"/>
+      <PARAM name="azPriority" value="{{ hostvars[node]['azPriority'] | default('1') }}"/>
+      <PARAM name="backIp1" value="{{ hostvars[node]['backIp1'] | default(hostvars[node]['inventory_hostname']) }}"/>
+      <PARAM name="sshIp1" value="{{ hostvars[node]['inventory_hostname'] }}"/>
+{% if node in groups['openGauss_master'] %}
+  {% if (groups['openGauss'] | count) > 2 %}
+  
+      <!-- CLUSTER MANAGER --> 
+      <PARAM name="cmsNum" value="1"/> 
+      <PARAM name="cmServerPortBase" value="{{ combined_vars.openGauss_env.cmServerPortBase }}"/> 
+      <PARAM name="cmServerListenIp1" value="{{ og_ip_list }}"/> 
+      <PARAM name="cmServerHaIp1" value="{{ og_ip_list }}"/> 
+      <PARAM name="cmServerlevel" value="1"/> 
+      <PARAM name="cmServerRelation" value="{{ og_host_list }}"/> 
+      <PARAM name="cmDir" value="{{ og_data_path }}/cmserver"/> 
+  {% endif %}
+
+      <!-- Data Node -->
+      <PARAM name="dataNum" value="1"/>
+      <PARAM name="dataPortBase" value="15400"/>
+      <PARAM name="dataNode1" value="{{ og_data_path }}/dn
+      {%- for dn_node in (groups['openGauss'] | sort) if dn_node != inventory_hostname -%}      
+        ,opengauss{{ loop.index + 1 }},{{ og_data_path }}/dn
+      {%- endfor -%}
+      "/>
+      <PARAM name="dataNode1_syncNum" value="0"/>
+{% endif %}
+{% if node not in groups['openGauss_master'] 
+  and (groups['openGauss'] | count) > 2 %}
+
+      <!-- CLUSTER MANAGER --> 
+      <PARAM name="cmServerPortStandby" value="{{ combined_vars.openGauss_env.cmServerPortBase }}"/> 
+      <PARAM name="cmDir" value="{{ og_data_path }}/cmserver"/>
+  {% if node in groups['openGauss_cascade'] %}
+
+      <PARAM name="cascadeRole" value="on"/>
+  {% endif %}
+{% endif %}
+    </DEVICE>
+{% endfor %}
+
+  </DEVICELIST>
+</ROOT>
diff --git a/roles/openGauss/tests/inventory b/roles/openGauss/tests/inventory
new file mode 100644
index 0000000000000000000000000000000000000000..878877b0776c44f55fc4e458f70840f31da5bb01
--- /dev/null
+++ b/roles/openGauss/tests/inventory
@@ -0,0 +1,2 @@
+localhost
+
diff --git a/roles/openGauss/tests/test.yml b/roles/openGauss/tests/test.yml
new file mode 100644
index 0000000000000000000000000000000000000000..2943711ab483c60987f90d8e70612d9f5d8435d2
--- /dev/null
+++ b/roles/openGauss/tests/test.yml
@@ -0,0 +1,5 @@
+---
+- hosts: localhost
+  remote_user: root
+  roles:
+    - openGauss
diff --git a/roles/openGauss/vars/main.yml b/roles/openGauss/vars/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..d0bd0ac82c2c45d34e8c10b29d37fdb7df954ac7
--- /dev/null
+++ b/roles/openGauss/vars/main.yml
@@ -0,0 +1,2 @@
+---
+# vars file for openGauss
diff --git a/roles/pre-tasks/README.md b/roles/pre-tasks/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/roles/pre-tasks/defaults/main.yml b/roles/pre-tasks/defaults/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..573ac5e8e27e2089636328991605ba4d047a6b86
--- /dev/null
+++ b/roles/pre-tasks/defaults/main.yml
@@ -0,0 +1,2 @@
+---
+# defaults file for pre-tasks
diff --git a/roles/pre-tasks/handlers/main.yml b/roles/pre-tasks/handlers/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..4df3d0b3ad253f906b6b57163a49c3fd18483aa8
--- /dev/null
+++ b/roles/pre-tasks/handlers/main.yml
@@ -0,0 +1,2 @@
+---
+# handlers file for pre-tasks
diff --git a/roles/pre-tasks/meta/main.yml b/roles/pre-tasks/meta/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..c572acc9f8b466bea50f2799b0ca1956418b862c
--- /dev/null
+++ b/roles/pre-tasks/meta/main.yml
@@ -0,0 +1,52 @@
+galaxy_info:
+  author: your name
+  description: your role description
+  company: your company (optional)
+
+  # If the issue tracker for your role is not on github, uncomment the
+  # next line and provide a value
+  # issue_tracker_url: http://example.com/issue/tracker
+
+  # Choose a valid license ID from https://spdx.org - some suggested licenses:
+  # - BSD-3-Clause (default)
+  # - MIT
+  # - GPL-2.0-or-later
+  # - GPL-3.0-only
+  # - Apache-2.0
+  # - CC-BY-4.0
+  license: license (GPL-2.0-or-later, MIT, etc)
+
+  min_ansible_version: 2.1
+
+  # If this a Container Enabled role, provide the minimum Ansible Container version.
+  # min_ansible_container_version:
+
+  #
+  # Provide a list of supported platforms, and for each platform a list of versions.
+  # If you don't wish to enumerate all versions for a particular platform, use 'all'.
+  # To view available platforms and versions (or releases), visit:
+  # https://galaxy.ansible.com/api/v1/platforms/
+  #
+  # platforms:
+  # - name: Fedora
+  #   versions:
+  #   - all
+  #   - 25
+  # - name: SomePlatform
+  #   versions:
+  #   - all
+  #   - 1.0
+  #   - 7
+  #   - 99.99
+
+  galaxy_tags: []
+    # List tags for your role here, one per line. A tag is a keyword that describes
+    # and categorizes the role. Users find roles by searching for tags. Be sure to
+    # remove the '[]' above, if you add tags to this list.
+    #
+    # NOTE: A tag is limited to a single word comprised of alphanumeric characters.
+    #       Maximum 20 tags per role.
+
+dependencies: []
+  # List your role dependencies here, one per line. Be sure to remove the '[]' above,
+  # if you add dependencies to this list.
diff --git a/roles/pre-tasks/tasks/Kylin Linux Advanced Server.yml b/roles/pre-tasks/tasks/Kylin Linux Advanced Server.yml
new file mode 100644
index 0000000000000000000000000000000000000000..3034251b8b24ea70617cb916432c01c73c1a9615
--- /dev/null
+++ b/roles/pre-tasks/tasks/Kylin Linux Advanced Server.yml	
@@ -0,0 +1,3 @@
+- name: Set custom vars
+  set_fact:
+    custom_pkg_mgr: dnf
diff --git a/roles/pre-tasks/tasks/main.yml b/roles/pre-tasks/tasks/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..d52820f31a71853b9a4a76bd833697ccfe2ee7a4
--- /dev/null
+++ b/roles/pre-tasks/tasks/main.yml
@@ -0,0 +1,39 @@
+---
+# tasks file for pre-tasks
+
+- name: Set timezone
+  set_fact:
+    global_timezone: "Asia/Shanghai"
+  when: global_timezone is not defined
+
+- block:
+    - name: Get iface name when 'global_bond_iface' is not defined
+      shell: "ip a | grep {{ ansible_host | default(inventory_hostname) }} | awk '{print $NF}'"
+      changed_when: false
+      register: iface_name
+
+    - name: Set 'global_bond_iface' var
+      set_fact:
+        global_bond_iface: "{{ iface_name.stdout | trim }}"
+        global_bond_ip: "{{ ansible_host | default(inventory_hostname) }}"
+  when: "global_bond_iface is not defined"
+
+- name: "Set `inventory_dir` equal to `playbook_dir`"
+  set_fact:
+    inventory_dir: "{{ playbook_dir }}"
+  when:
+    - inventory_dir is not defined
+    - playbook_dir is defined
+
+- name: Set python vars
+  set_fact:
+    python_name: "{{ (ansible_python_interpreter | default(discovered_interpreter_python)) | basename }}"
+    pip_name: "{{ (ansible_python_interpreter | default(discovered_interpreter_python)) | basename | replace('python', 'pip') }}"
+
+# This task must be the last
+- include_tasks: "{{ item }}"
+  with_first_found:
+    - files:
+        - "{{ ansible_distribution }}.yml"
+        - "{{ ansible_os_family }}.yml"
+      skip: true
diff --git a/roles/pre-tasks/tasks/vars_combine.yml b/roles/pre-tasks/tasks/vars_combine.yml
new file mode 100644
index 0000000000000000000000000000000000000000..4d90e6c5e23c7aa3c46f3d8b2176243231c6ec1b
--- /dev/null
+++ b/roles/pre-tasks/tasks/vars_combine.yml
@@ -0,0 +1,50 @@
+- name: Combine default vars and custom vars
+  block:
+    - name: "Include role's defaults vars"
+      ansible.builtin.include_vars:
+        dir: "{{ item }}/defaults"
+        name: "temp_role_vars"
+      loop: "{{ ansible_parent_role_paths }}"
+
+    # - debug:
+    #     msg: "{{ temp_role_vars }}"
+
+    - name: Assembling group vars files
+      assemble:
+        src: "{{ inventory_dir }}/group_vars"
+        dest: "{{ inventory_dir }}/assembled_vars/{{ group_names | hash('md5') }}.yml"
+        regexp: "({{ group_names | join('|') }})"
+      delegate_to: localhost
+      become: false
+      run_once: true
+
+    - name: "Include group custom vars"
+      ansible.builtin.include_vars:
+        file: "{{ inventory_dir }}/assembled_vars/{{ group_names | hash('md5') }}.yml"
+        name: "temp_group_vars"
+
+    # - debug:
+    #     msg: "{{ temp_group_vars }}"
+
+    - name: Combine vars from role and groups
+      set_fact:
+        combined_vars: "{{ role_vars | combine(group_vars, recursive=true) }}"
+      vars:
+        role_vars: "{{ lookup('vars', 'temp_role_vars') }}"
+        group_vars: "{{ lookup('vars', 'temp_group_vars') }}"
+
+
+    # - debug:
+    #     msg: "{{ combined_vars }}"
+
+    # - meta: end_play
+
+  rescue:
+    - name: "Create {{ inventory_dir }}/assembled_vars"
+      file:
+        path: "{{ inventory_dir }}/assembled_vars"
+        state: directory
+      delegate_to: localhost
+      become: false
+
+    - include_tasks: vars_combine.yml
\ No newline at end of file
diff --git a/roles/pre-tasks/tests/inventory b/roles/pre-tasks/tests/inventory
new file mode 100644
index 0000000000000000000000000000000000000000..878877b0776c44f55fc4e458f70840f31da5bb01
--- /dev/null
+++ b/roles/pre-tasks/tests/inventory
@@ -0,0 +1,2 @@
+localhost
+
diff --git a/roles/pre-tasks/tests/test.yml b/roles/pre-tasks/tests/test.yml
new file mode 100644
index 0000000000000000000000000000000000000000..37fcbce5713d1794a6ec5af6c377ae9ae639fcf3
--- /dev/null
+++ b/roles/pre-tasks/tests/test.yml
@@ -0,0 +1,5 @@
+---
+- hosts: localhost
+  remote_user: root
+  roles:
+    - pre-tasks
diff --git a/roles/pre-tasks/vars/main.yml b/roles/pre-tasks/vars/main.yml
new file mode 100644
index 0000000000000000000000000000000000000000..eacdecbc9802140ded0631a310a2f8132b26a691
--- /dev/null
+++ b/roles/pre-tasks/vars/main.yml
@@ -0,0 +1,2 @@
+---
+# vars file for pre-tasks