Wildcard Certificates with acme.sh: Difference between revisions

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== Using acme.sh ==
== Using acme.sh ==


Since the certbot gandi dns plugin has been giving issues over the past months (no smooth renewal, leading to unavailability of sites) we started moving things to acme.sh. Seems to work better, easier to setup etc.
<code>acme.sh</code> is a lightweight shell script based tool to handle Let's Encrypt certificates.


=== Install the bash script ===
=== Install the bash script ===
Line 12: Line 12:
  sh acme.sh
  sh acme.sh


This will install the script to /root/ and add it to path  
This will install the script to <code>/root/.acme</code> and add it to path by sourcing a script from root's <code>.bashrc</code>


=== Request a wildcard cert for lurk.org ===
=== Request a wildcard cert for lurk.org ===


We use wildcard certificates with DNS authentification
first find and export the gandi dns key:
first find and export the gandi dns key:


Line 28: Line 29:
  /root/.acme.sh/\*.lurk.org/
  /root/.acme.sh/\*.lurk.org/


== Migration status ==
=== Install the certs for nginx ===


Done:
=== Deployment for other services ===


* VMB (nginx, masto, icecast)


To do:


* agnes (nginx, prosody, mm3)
* douglas (???)


== Ref ==
* https://forums.freebsd.org/threads/howto-ssl-tls-certificates-with-acme-sh.61231/ (FreeBSD)
= N.B. everything below is for archival reference =
== Base installation ==
apt install python-pip
pip install wheel
pip install certbot
== DNS plugins ==
=== Gandi ===
'''NOTE: At time of writing, only an API key from the domain owner will work. So another account, even if listed technical contact, will not able to use the live DNS API, just the live DNS web interface. Since the writing of this HOWTO, there is now this as well https://github.com/obynio/certbot-plugin-gandi TODO'''
* Get API key from Gandi (somewhere in account settings)
* install certbot-plugin-gandi
pip install 'git+https://gitlab.com/cspublic/certbot-plugin-gandi.git'
mkdir /etc/certbot-plugin-gandi
* create /etc/certbot-plugin-gandi/gandi.ini with the following:
certbot_plugin_gandi:dns_api_key=APIKEY
* a bit of paranoia
chmod 600 /etc/certbot-plugin-gandi/gandi.ini
* request certificate for both mydomain.blabla '''and''' *.mydomain.blabla
'''NOTE: At time of writing, the default sever end point used by cerbot (0.22) is not compatible with ACME v2, as a workaround --server must be passed manually. Next version of certbot should point to the right server'''
/usr/local/bin/certbot certonly -a certbot-plugin-gandi:dns --certbot-plugin-gandi:dns-credentials /etc/certbot-plugin-gandi/gandi.ini -d mydomain.blabla -d *.mydomain.blabla --server https://acme-v02.api.letsencrypt.org/directory
* If all goes well certs will be there:
'''NOTE: At time of writing, certbot-plugin-gandi seems to behave a bit funnily when asked to request a challenge for a wildcard cert (it works flawslessly for regular domains). It might be needed to run the command several times to get the infamous CONGRATULATION message from certbot.'''
/etc/letsencrypt/live/mydomain.blabla/fullchain.pem
/etc/letsencrypt/live/mydomain.blabla/privkey.pem
== Renewal ==
To non-interactively renew *all* of your certificates:
/usr/local/bin/certbot renew
=== douglas ===
=== agnes ===
'''TODO: hooks!'''
<pre>
service nginx restart
prosodyctl reload
</pre>


[[Category:Certificates]]
[[Category:Certificates]]

Revision as of 21:59, 12 October 2024

Using acme.sh

acme.sh is a lightweight shell script based tool to handle Let's Encrypt certificates.

Install the bash script

wget https://get.acme.sh

As root: 

sh acme.sh

This will install the script to /root/.acme and add it to path by sourcing a script from root's .bashrc

Request a wildcard cert for lurk.org

We use wildcard certificates with DNS authentification first find and export the gandi dns key: 

export GANDI_LIVEDNS_KEY="fdmlfsdklmfdkmqsdfk"

Then request a wildcard cert. (the dns key is added to a config file automatically for future renewals) 

acme.sh --issue --dns dns_gandi_livedns --nginx -d *.lurk.org

Find the certs in: 

/root/.acme.sh/\*.lurk.org/

Install the certs for nginx

Deployment for other services

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