Use terraform + ansible to initialize a system consisting of 1 EC2 instance + 1 RDS database running the Wordpress kusanagi project
时间: 2024-10-21 11:17:54 浏览: 9
要使用 Terraform 和 Ansible 配置一个系统,该系统包含一个 Amazon EC2 实例和一个运行 WordPress Kusagi 项目的 Amazon RDS 数据库,首先需要安装并熟悉这两个工具:
**Terraform** 是用来自动化基础设施即代码 (IaC) 的,而 **Ansible** 则是一个配置管理和自动化工具。
1. **初始化 Terraform**:
- 安装 Terraform(https://www.terraform.io/intro/getting-started/install.html)
- 创建一个新的 Terraform 工程文件夹(`init` 命令)
2. **创建 Terraform 配置文件** (main.tf):
- 添加以下内容:
```hcl
provider "aws" {
region = "your_aws_region"
}
resource "aws_instance" "wordpress_ec2" {
ami = "ami-xxxxxxxxxx" // 替换为最新的可用 AMI ID
instance_type = "t2.micro" // 根据需求调整实例类型
key_name = "your_key_pair" // 你的密钥对名称
vpc_security_group_ids = [aws_security_group.web.id]
tags = {
Name = "WordPress-Kusagi"
}
}
resource "aws_rds_cluster" "wordpress_db" {
engine = "mysql"
engine_version = "5.7.30"
master_username = "root"
master_password = "your_root_password" // 用随机密码替换
backup_retention_period = 7
db_subnet_group_name = aws_db_subnet_group.mysql.name
}
resource "aws_db_subnet_group" "mysql" {
name = "wordpress_mysql_subnet_group"
subnet_ids = [aws_subnet.private.ids] // 子网ID列表
}
resource "aws_subnet" "private" {
cidr_block = "10.0.0.0/24" # 你的私有子网CIDR
vpc_id = aws_vpc.default.id
availability_zone = "your_availability_zone"
}
resource "aws_security_group" "web" {
name = "wordpress_web_sg"
description = "Allow HTTP and HTTPS traffic"
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 443
to_port = 443
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
}
resource "random_string" "root_password" {
length = 16
special = true
upper = true
lower = true
ascii = true
}
```
- 这里假设你已经有了私有子网(`aws_subnet`)和VPC(`aws_vpc`), 你需要根据实际情况更新这些资源。
3. **执行 Terraform 初始化和应用** (`terraform init` 和 `terraform apply`)
4. **使用 Ansible** 部署 WordPress Kusagi:
- 安装 Ansible(https://docs.ansible.com/ansible/latest/installation_guide/tutorials/installation_local.html)
- 在你的项目中创建一个 playbook, 如 `site.yml`:
```yaml
---
- hosts: ec2_instance
gather_facts: yes
user: your_username
tasks:
- name: Update apt cache
apt:
update_cache: yes
- nginx
- mysql-client
- php-fpm
- wordpress
- name: Download and install WordPress
fetch:
url: https://wordpress.org/latest.tar.gz
dest: /var/www/html/
unarchive:
src: /var/www/html/latest.tar.gz
dest: /var/www/html/
- name: Configure MySQL
mysql_user:
login_host: localhost
username: root
password: {{ random_string.root_password.result }}
priv: "{{ lookup('env', 'DB_NAME') }}.*:ALL"
- name: Import WordPress DB schema
command: mysql -u root -p{{ random_string.root_password.result }} {{ lookup('env', 'DB_NAME') }} < wp-content/db.sql
environment:
DB_NAME: "{{ lookup('env', 'DB_NAME') }}"
delegate_to: 127.0.0.1
- name: Start Apache or Nginx (if using Nginx)
service:
name: nginx
state: started
```
- 设置环境变量 `DB_NAME` 为你在 Terraform 中创建的 RDS 数据库名。
5. **启动 Ansible playbook** (`ansible-playbook site.yml`)
完成以上步骤后,你应该有了一个部署了 WordPress Kusagi 项目的 EC2 实例和连接它的 RDS 数据库。记得定期更新和维护安全设置。
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