Let‘s Encrypt 免费证书使用

1、环境介绍

操作系统：龙蜥OS 8.9
中间件：nginx
证书：Let’s Encrypt
https://letsencrypt.org/zh-cn/
证书部署工具：acme.sh
域名托管厂商：阿里云

2、安装acme.sh

curl https://get.acme.sh | sh
source ~/.bashrc

3、创建阿里云RAM用户

登录阿里云 RAM 控制台，创建用户 & AccessKey
访问：https://ram.console.aliyun.com/users
创建 AccessKey，记住 ID 和 Secret

echo 'export Ali_Key="你的AccessKeyId"' >> ~/.bashrc
echo 'export Ali_Secret="你的AccessKeySecret"' >> ~/.bashrc
source ~/.bashrc

这里需要授权AliyunDNSFullAccess

4、申请证书

acme.sh --issue --dns dns_ali -d gubeisz.net -d '*.gubeisz.net' --server letsencrypt

阿里云这里也会生成txt记录

计划任务里会自动更新证书

5、使用ansible 自动分发证书

ansible 服务器免登录

ssh-copy-id -i ~/.ssh/id_rsa.pub root@10.99.99.120

代理到证书服务器免认证

ssh-keygen -t rsa -b 4096 -C "proxy-to-cert" -N "" -f ~/.ssh/id_rsa
ssh-copy-id root@10.99.50.11

playbook

- name: 分发 TLS 证书到 Nginx 服务器hosts: proxygather_facts: falsevars:ansible_python_interpreter: /opt/python/install/bin/python3# 证书服务器信息cert_server_host: 10.99.50.11cert_remote_path: /root/.acme.sh/gubeisz.net_ecccert_files:- fullchain.cer- gubeisz.net.key# 目标服务器 Nginx 安装信息nginx_cert_dir: /usr/local/nginx/conf/cert/gubeisz.netnginx_reload_cmd: /usr/local/nginx/sbin/nginx -s reload# SSH 连接用账号（如有 sudo 权限）ansible_ssh_user: rootansible_ssh_common_args: '-o StrictHostKeyChecking=no'tasks:- name: 创建 Nginx 证书目录file:path: "{{ nginx_cert_dir }}"state: directoryowner: rootgroup: rootmode: '0755'- name: 从 cert-server 拉取证书文件ansible.builtin.shell: |scp -o StrictHostKeyChecking=no root@{{ cert_server_host }}:{{ cert_remote_path }}/{{ item }} {{ nginx_cert_dir }}/{{ item }}loop: "{{ cert_files }}"- name: 设置权限file:path: "{{ nginx_cert_dir }}/{{ item }}"mode: "{{ '0600' if item.endswith('.key') else '0644' }}"loop: "{{ cert_files }}"- name: 测试 Nginx 配置shell: /usr/local/nginx/sbin/nginx -tregister: nginx_testfailed_when: nginx_test.rc != 0changed_when: false- name: 重载 Nginxshell: "{{ nginx_reload_cmd }}"

6、验证证书