centos7 certbot nginx

想在阿里云 centos7 nginx 下使用https直接使用的 Certbot:
1.安装 certbot nginx 版

$ sudo yum install python2-certbot-nginx

2. 停nginx服务

$ ps -ef | grep nginx

root     12373     1  0 09:58 ?        00:00:00 nginx: master process nginx -c /etc/nginx/nginx.conf
www      12390 12373  0 09:59 ?        00:00:00 nginx: worker process
root     12637 11828  0 10:16 pts/0    00:00:00 grep --color=auto nginx

$ kill -9 12373

3. 设置Certbot需要的默认的 nginx 路径

$ ln -s /usr/local/nginx/sbin/nginx /usr/bin/nginx

$ ln -s /usr/local/nginx/conf/ /etc/nginx

4.开始配置

$ sudo certbot --nginx

[root@iz2zece0fhvx3at7vwt7wzz nginx]# sudo certbot --nginx
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator nginx, Installer nginx
Enter email address (used for urgent renewal and security notices) (Enter 'c' to
cancel): liangyongtong@foxmail.com
Starting new HTTPS connection (1): acme-v02.api.letsencrypt.org

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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
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(A)gree/(C)ancel: A

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Would you be willing 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.
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(Y)es/(N)o: Y
Starting new HTTPS connection (1): supporters.eff.org

Which names would you like to activate HTTPS for?
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1: aaa.liangyongtong.cn
2: bbb.liangyongtong.cn
3: ccc.liangyongtong.cn
4: ddd.liangyongtong.cn
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Select the appropriate numbers separated by commas and/or spaces, or leave input
blank to select all options shown (Enter 'c' to cancel): 4
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for www.liangyongtong.cn
nginx: [alert] kill(12271, 1) failed (3: No such process)
Waiting for verification...
Cleaning up challenges
Resetting dropped connection: acme-v02.api.letsencrypt.org
Deploying Certificate to VirtualHost /etc/nginx/nginx.conf

Please choose whether or not to redirect HTTP traffic to HTTPS, removing HTTP access.
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1: No redirect - Make no further changes to the webserver configuration.
2: Redirect - Make all requests redirect to secure HTTPS access. Choose this for
new sites, or if you're confident your site works on HTTPS. You can undo this
change by editing your web server's configuration.
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Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 2
Redirecting all traffic on port 80 to ssl in /etc/nginx/nginx.conf

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Congratulations! You have successfully enabled https://ddd.liangyongtong.cn

You should test your configuration at:
https://www.ssllabs.com/ssltest/analyze.html?d=ddd.liangyongtong.cn
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IMPORTANT NOTES:
 - Congratulations! Your certificate and chain have been saved at:
   /etc/letsencrypt/live/ddd.liangyongtong.cn/fullchain.pem
   Your key file has been saved at:
   /etc/letsencrypt/live/ddd.liangyongtong.cn/privkey.pem
   Your cert will expire on 2019-04-15. To obtain a new or tweaked
   version of this certificate in the future, simply run certbot again
   with the "certonly" option. To non-interactively renew *all* of
   your certificates, run "certbot renew"
 - Your account credentials have been saved in your Certbot
   configuration directory at /etc/letsencrypt. You should make a
   secure backup of this folder now. This configuration directory will
   also contain certificates and private keys obtained by Certbot so
   making regular backups of this folder is ideal.
 - 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

 - We were unable to subscribe you the EFF mailing list because your
   e-mail address appears to be invalid. You can try again later by
   visiting https://act.eff.org.

遇到的问题

1.ImportError: No module named 'requests.packages.urllib3
执行：

$ pip install --upgrade --force-reinstall 'requests==2.6.0' urllib3

查看已安装的证书

$ certbot certificates

Saving debug log to /var/log/letsencrypt/letsencrypt.log

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Found the following certs:
  Certificate Name: ddd.liangyongtong.cn
    Domains: ddd.liangyongtong.cn
    Expiry Date: 2019-04-15 00:58:21+00:00 (VALID: 89 days)
    Certificate Path: /etc/letsencrypt/live/ddd.liangyongtong.cn/fullchain.pem
    Private Key Path: /etc/letsencrypt/live/ddd.liangyongtong.cn/privkey.pem
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