Auto renewal dry run failed - sequence item 2: expected string, NoneType found

[markdavies]

Nginx / Ubuntu 14.04

When attempting a dry run of an auto renewal I get the following error:

Attempting to renew cert from /etc/letsencrypt/renewal/website.conf produced an unexpected error: sequence item 2: expected string, NoneType found. Skipping.

The conf file looks like this:

# renew_before_expiry = 30 days
version = 0.14.2
archive_dir = /etc/letsencrypt/archive/prezzywezzy.com.au
cert = /etc/letsencrypt/live/prezzywezzy.com.au/cert.pem
privkey = /etc/letsencrypt/live/prezzywezzy.com.au/privkey.pem
chain = /etc/letsencrypt/live/prezzywezzy.com.au/chain.pem
fullchain = /etc/letsencrypt/live/prezzywezzy.com.au/fullchain.pem

# Options used in the renewal process
[renewalparams]
authenticator = nginx
installer = nginx
account = 27898787c0c61990ca7d880fa11147de

Thanks in advance for any assistance…

[markdavies]

Anyone? Still an issue for me

[sahsanu]

Hi @markdavies,

Maybe @schoen, @bmw or @erica could help here to debug the issue you are getting.

It should be great if you can provide them the following info.

1.- The version of certbot client you are using.

2.- The exact command you are executing, maybe adding --debug and -vvv and showing the screen output.

3.- The log created in /var/log/letsencrypt/letsencrypt.log

4.- The nginx conf for your domains.

I hope they can help you to resolve the issue.

Cheers,
sahsanu

[schoen]

It would also be good to know if you’ve created a cli.ini file (and, if so, what its contents are).

[tomako]

I got the same exception when called the following command:
./certbot-auto certonly --nginx --dry-run -d *domain-name*

Stack trace:
Exiting abnormally: Traceback (most recent call last): File "/home/poder/.local/share/letsencrypt/bin/letsencrypt", line 11, in <module> sys.exit(main()) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/main.py", line 743, in main return config.func(config, plugins) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/main.py", line 683, in certonly lineage = _get_and_save_cert(le_client, config, domains, certname, lineage) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/main.py", line 82, in _get_and_save_cert lineage = le_client.obtain_and_enroll_certificate(domains, certname) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/client.py", line 344, in obtain_and_enroll_certificate certr, chain, key, _ = self.obtain_certificate(domains) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/client.py", line 313, in obtain_certificate self.config.allow_subset_of_names) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/auth_handler.py", line 74, in get_authorizations resp = self._solve_challenges() File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot/auth_handler.py", line 115, in _solve_challenges resp = self.auth.perform(self.achalls) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot_nginx/configurator.py", line 809, in perform sni_response = chall_doer.perform() File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot_nginx/tls_sni_01.py", line 75, in perform self.configurator.save("SNI Challenge", True) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot_nginx/configurator.py", line 721, in save self.parser.filedump(ext='') File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot_nginx/parser.py", line 239, in filedump out = nginxparser.dumps(tree) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot_nginx/nginxparser.py", line 134, in dumps return str(RawNginxDumper(blocks.spaced)) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot_nginx/nginxparser.py", line 98, in __str__ return ''.join(self) File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot_nginx/nginxparser.py", line 86, in __iter__ for line in self.__iter__([parameter]): # negate "for b0 in blocks" File "/home/poder/.local/share/letsencrypt/local/lib/python2.7/site-packages/certbot_nginx/nginxparser.py", line 94, in __iter__ yield "".join(item) + semicolon TypeError: sequence item 2: expected string, NoneType found

Content of the item: ['ssl_certificate_key', ' ', None]

Version: 0.15.0

Without --dry-run the command ran flawlessly.

[bmw]

Sorry for the delayed response @tomako. We’ve been able to reproduce the problem and it will be fixed in our release at the beginning of next month. You can see the issue on our GitHub repo at https://github.com/certbot/certbot/issues/4846.