安装Let’s Encrypt
安装非常简单直接克隆就可以了
# git clone https://github.com.cnpmjs.org/letsencrypt/letsencrypt # cd letsencrypt/ # ll
生成通配符证书
期间需要根据提示设置DNS TXT记录,用作你对判断你是否拥有域名使用权
./certbot-auto certonly -d *.zisefeizhu.com --manual --preferred-challenges dns --server https://acme-v02.api.letsencrypt.org/directory
参数 | 说明 |
---|---|
certonly | 表示安装模式,Certbot 有安装模式和验证模式两种类型的插件 |
–manual | 表示手动安装插件,Certbot 有很多插件,不同的插件都可以申请证书,用户可以根据需要自行选择 |
-d | 为那些主机申请证书,如果是通配符,输入 *.leixf.cn(可以替换为你自己的一级域名) |
–preferred-challenges dns | 使用 DNS 方式校验域名所有权 |
–server | Let’s Encrypt ACME v2 版本使用的服务器不同于 v1 版本,需要显示指定 |
输出结果
作为依赖被升级: cpp.x86_64 0:4.8.5-44.el7 e2fsprogs.x86_64 0:1.42.9-19.el7 e2fsprogs-libs.x86_64 0:1.42.9-19.el7 krb5-libs.x86_64 0:1.15.1-50.el7 libcom_err.x86_64 0:1.42.9-19.el7 libffi.x86_64 0:3.0.13-19.el7 libgcc.x86_64 0:4.8.5-44.el7 libgomp.x86_64 0:4.8.5-44.el7 libselinux.x86_64 0:2.5-15.el7 libselinux-python.x86_64 0:2.5-15.el7 libselinux-utils.x86_64 0:2.5-15.el7 libss.x86_64 0:1.42.9-19.el7 openssl-libs.x86_64 1:1.0.2k-19.el7 python.x86_64 0:2.7.5-90.el7 python-libs.x86_64 0:2.7.5-90.el7 完毕! Creating virtual environment... Installing Python packages... Installation succeeded. Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected: Authenticator manual, Installer None Enter email address (used for urgent renewal and security notices)
接下来需要按要求输入指令
Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected: Authenticator manual, Installer None Enter email address (used for urgent renewal and security notices) (Enter 'c' to cancel): linkun@zisefeizhu.com - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Please read the Terms of Service at https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf. You must agree in order to register with the ACME server at https://acme-v02.api.letsencrypt.org/directory - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (A)gree/(C)ancel: A - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Would you be willing, once your first certificate is successfully issued, to share your email address with the Electronic Frontier Foundation, a founding partner of the Let's Encrypt project and the non-profit organization that develops Certbot? We'd like to send you email about our work encrypting the web, EFF news, campaigns, and ways to support digital freedom. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (Y)es/(N)o: N Obtaining a new certificate Performing the following challenges: dns-01 challenge for zisefeizhu.com - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - NOTE: The IP of this machine will be publicly logged as having requested this certificate. If you're running certbot in manual mode on a machine that is not your server, please ensure you're okay with that. Are you OK with your IP being logged? - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (Y)es/(N)o: Y - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Please deploy a DNS TXT record under the name _acme-challenge.zisefeizhu.com with the following value: JM-xxxxxxxxxxxxxxxEQ Before continuing, verify the record is deployed. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Press Enter to Continue
这里有几个需交互的提示
- 是否同意 Let’s Encrypt 协议要求=>需要同意
- 是否分享你的邮箱
- 询问是否对域名和机器(IP)进行绑定=>需要同意
需要注意的地方:
Please deploy a DNS TXT record under the name _acme-challenge.zisefeizhu.com with the following value: JM-xxxxxxxxxxxxxxxEQ Before continuing, verify the record is deployed. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Press Enter to Continue
要求配置 DNS TXT 记录,从而校验域名所有权,也就是判断证书申请者是否有域名的所有权。
上面输出要求给 _acme-challenge.leixf.cn 配置一条 TXT 记录,在没有确认 TXT 记录生效之前不要回车执行。
我用的是阿里云的域名服务器,控制台具体操作如下所示:
云解析DNS --> 域名解析 --> 解析设置 --> 记录类型(TXT) --> 主机记录(_acme-challenge) --> 解析线路(默认) --> 记录值(JM-pzw0Cf7GKfqu_2tyIA-rmfWptxabEFPEP5gSlLEQ)
确认生效
dig _acme-challenge.zisefeizhu.com ; <<>> DiG 9.10.6 <<>> _acme-challenge.zisefeizhu.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4648 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;_acme-challenge.zisefeizhu.com. IN A ;; AUTHORITY SECTION: zisefeizhu.com. 600 IN SOA dns25.hichina.com. hostmaster.hichina.com. 2019121120 3600 1200 86400 360 ;; Query time: 265 msec ;; SERVER: 192.168.0.1#53(192.168.0.1) ;; WHEN: Mon Nov 23 10:51:21 CST 2020 ;; MSG SIZE rcvd: 118
回车执行,输出如下
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Press Enter to Continue Waiting for verification... Cleaning up challenges IMPORTANT NOTES: - Congratulations! Your certificate and chain have been saved at: /etc/letsencrypt/live/zisefeizhu.com/fullchain.pem Your key file has been saved at: /etc/letsencrypt/live/zisefeizhu.com/privkey.pem Your cert will expire on 2021-02-21. To obtain a new or tweaked version of this certificate in the future, simply run certbot-auto again. To non-interactively renew *all* of your certificates, run "certbot-auto renew" - If you like Certbot, please consider supporting our work by: Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate Donating to EFF: https://eff.org/donate-le
看到这个界面内容的话,证书安装成功了。
查看证书过期时间
# ./certbot-auto certificates Certificate Name: zisefeizhu.com Serial Number: 3041ed1be0505aaa20c9c192744c3ed28f3 Domains: *.zisefeizhu.com Expiry Date: 2021-02-21 01:55:54+00:00 (VALID: 89 days) Certificate Path: /etc/letsencrypt/live/zisefeizhu.com/fullchain.pem Private Key Path: /etc/letsencrypt/live/zisefeizhu.com/privkey.pem
验证
# yum install nginx
取消证书
可以使用一下命令取消刚刚生成的密匙,也就是以上的反操作:
certbot revoke --cert-path /etc/letsencrypt/live/leixf.cn/cert.pem certbot delete --cert-name leixf.cn
证书路径:
/etc/letsencrypt/live/zisefeizhu.com/
k8s使用
tls.crt --> /etc/letsencrypt/live/zisefeizhu.com/fullchain.pem
tls.key --> /etc/letsencrypt/live/zisefeizhu.com/privkey.pem
crt.sh
kubectl create secret tls zisefeizhu-cn-crt --key tls.key --cert tls.crt -n zisefeizhu
nginx-ingress.yaml
apiVersion: extensions/v1beta1 kind: Ingress metadata: name: nginx-test namespace: realihub annotations: kubernetes.io/ingress.class: "kong" labels: app: nginx-test spec: tls: - hosts: - "*.zisefeizhu.com" secretName: hub-zisefeizhu-com-crt rules: - host: test.zisefeizhu.com http: paths: - path: / backend: serviceName: nginx-test servicePort: 80