Re: Re: NTS Server Setup with Let's Encrypt

Gerd Hoerst <[email protected]> Wed, 23 Apr 2025 11:30:57 +0200
Newsgroups gmane.comp.time.chrony.user
Message-ID <[email protected]>
Hi !

the hook is used to restart services (like apache/postfix/dovecot) after 
a renewal (if there was no user right issue, you need also to 
restart/reload chrony to use the new certs... so why don't copy them 
before and give them the correct rights ?

Ciao Gerd

Am 22.04.25 um 23:51 schrieb kross-WHuJl200arIRAJMLapdhQVaTQe2KTcn/@public.gmane.org:
>
>         Why just do that in the renewal-hook/post script ?
>
>
> Not sure I fully grasp your drift, so apologies if the following is 
> old news.
>
> The point of the certbot renewal hook is automation of deployment.
>
> Nothing wrong with manually keeping track of the validity of existing 
> certificates, e.g., periodically checking, setting a reminder 
> somewhere, having a tool that checks and alerts, or waiting until 
> someone or something alerts upon finding an expired certificate (as 
> you will have seen, Let's encrypt will cease sending reminders in the 
> near future). And then deploying manually (assuming certbot did an 
> automated renewal, or maybe do that manually as well).
>
> But once the number of certificates to keep track of reaches a certain 
> level, or the thrill of learning the ropes, i.e., setting this up in 
> the first place, and going through the motions of deploying manually 
> after (manual or automated) renewal, diminishes after a few 
> iterations, automated deployment (after automated renewal) is your 
> friend.
>
> As always, YMMV.
>
> Kind regards,
>
> Joachim
>
> 22.04.2025 22:50:06 Sviatoslav Feshchenko 
> <[email protected]>:
>
>     This seem like a simpler solution! Thank you for sharing!
>
>     Sviatoslav
>
>     On Tuesday, April 22nd, 2025 at 3:32 AM, Gerd Hoerst
>     <[email protected]> wrote:
>>
>>     Hi !
>>
>>     Why just do that in the renewal-hook/post script ?
>>
>>     cp -L /etc/letsencrypt/live/time.hoerst.net/cert.pem
>>     /etc/chrony/cert/
>>     cp -L /etc/letsencrypt/live/time.hoerst.net/privkey.pem
>>     /etc/chrony/cert/
>>     chmod g+r /etc/chrony/cert/*
>>     systemctl restart chrony
>>
>>     Ciao Gerd
>>
>>     Am 20.04.25 um 19:40 schrieb kross-WHuJl200arIRAJMLapdhQVaTQe2KTcn/@public.gmane.org:
>>>     No, there is no issue with the approach you outlined. My
>>>     proposal to Debian just included a ready-made script that you
>>>     could have used.
>>>
>>>     But yours works fine as well. Some caveats, e.g., it would
>>>     trigger, and do its stuff, on renewal of _every_ certificate on
>>>     the system, e.g., if you have separate certificates for multiple
>>>     domains, or different certs for chronyd and your web server for
>>>     the same domain name. But if you don't have such "advanced"
>>>     configurations, no issue (and many, if not most people, probably
>>>     don't).
>>>
>>>     Kind regards
>>>
>>>     Joachim
>>>
>>>     20.04.2025 19:27:57 Sviatoslav Feshchenko
>>>     <[email protected]>:
>>>
>>>         Perhaps I am not fully understanding you. I just created a
>>>         script in /etc/letsencrypt/renewal-hooks/deploy directory
>>>         with the following content:
>>>
>>>         #!/bin/bash
>>>
>>>         FULLCHAIN_PATH="${RENEWED_LINEAGE}/fullchain.pem"
>>>         PRIVKEY_PATH="${RENEWED_LINEAGE}/privkey.pem"
>>>
>>>         cat "${FULLCHAIN_PATH}" > /etc/chrony/certs/fullchain.pem
>>>         cat "${PRIVKEY_PATH}" > /etc/chrony/certs/privkey.pem
>>>
>>>         systemctl restart chronyd
>>>         systemctl restart gpsd
>>>
>>>         Then I forced certificate renewal by issuing the following
>>>         command:
>>>
>>>         certbot renew --force-renewal
>>>
>>>         I can confirm that the above script was executed upon
>>>         successful renewal and that chrony and gpsd were restarted
>>>         and everything is working fine. Are you then suggesting that
>>>         auto renewal will not trigger this script? Is there an issue
>>>         with the approach outlined above?
>>>
>>>         Many thanks for all your help!
>>>
>>>         Sviatoslav
>>>
>>>
>>>         On Sunday, April 20th, 2025 at 12:53 PM,
>>>         kross-WHuJl200arIRAJMLapdhQVaTQe2KTcn/@public.gmane.org <kross-WHuJl200arIRAJMLapdhQVaTQe2KTcn/@public.gmane.org> wrote:
>>>>         Indeed the Debian packaging currently does not provide a
>>>>         script for certbot to call upon certificate renewal.
>>>>
>>>>         The script goes in the deploy subfolder, and there is an
>>>>         entry in the /etc/default/chrony config file to indicate
>>>>         the certificate name upon whose renewal the script shall be
>>>>         called (actually, it is called for every renewal, but it
>>>>         only does stuff when the certificate name is the one
>>>>         configured).
>>>>
>>>>         Kind regards,
>>>>
>>>>         Joachim
>>>>
>>>>         20.04.2025 18:44:03 Sviatoslav Feshchenko
>>>>         <[email protected]>:
>>>>
>>>>             … 
>>>>
>>>
>