Brad WarrenandGitHub 1f128b0e0a improve ARI error handling and logging (#10374)
fixes https://github.com/certbot/certbot/issues/10336 and fixes
https://github.com/certbot/certbot/issues/10357 using the plan at
https://github.com/certbot/certbot/issues/10336#issuecomment-3109192677

while this PR makes the renewal_time function slightly less nice, i
think us catching and handling the exceptions in certbot makes the most
sense so we can do exactly what we want around terminal and file logging

with this change, a output from a failed `sudo certbot renew` run looks
like
```
$ sudo certbot renew
Saving debug log to /var/log/letsencrypt/letsencrypt.log

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
Processing /etc/letsencrypt/renewal/example.org.conf
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
An error occurred requesting ACME Renewal Information (ARI). If this problem persists and you think it's a bug in Certbot, please open an issue at https://github.com/certbot/certbot/issues/new/choose.
Certificate not yet due for renewal

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
The following certificates are not due for renewal yet:
  /etc/letsencrypt/live/example.org/fullchain.pem expires on 2025-10-23 (skipped)
No renewals were attempted.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
```
`sudo certbot renew -q` produces no output and the relevant messages in
the log file look like:
```
2025-07-30 19:51:13,267:WARNING:certbot._internal.renewal:An error occurred requesting ACME Renewal Information (ARI). If this problem persists and you think it's a bug in Certbot, please open an issue at https://github.com/certbot/certbot/issues/new/choose.
2025-07-30 19:51:13,267:DEBUG:certbot._internal.renewal:Error while requesting ARI was:
Traceback (most recent call last):
  File "/home/brad/certbot/acme/src/acme/client.py", line 366, in renewal_time
    raise ValueError('im some error')
ValueError: im some error

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/brad/certbot/certbot/src/certbot/_internal/renewal.py", line 351, in _ari_renewal_time
    return acme.renewal_time(cert_pem)[0]
  File "/home/brad/certbot/acme/src/acme/client.py", line 370, in renewal_time
    raise errors.ARIError(error_msg, now + default_retry_after) from e
acme.errors.ARIError: ('failed to fetch renewal_info URL https://acme-staging-v02.api.letsencrypt.org/acme/renewal-info/oXQaBm1Qt4YtSizBfrSNiElszRY.LMjTHFS4HPbSRMOzLrA9OZId', datetime.datetime(2025, 7, 31, 1, 51, 13, 267088))

```
2025-07-30 16:31:59 -07:00
2025-05-08 13:03:31 -07:00
2025-07-17 11:56:03 -07:00
2023-03-15 12:54:20 -07:00
2023-04-17 13:01:00 -07:00
2021-02-03 12:03:09 -08:00
2025-05-06 10:57:50 -07:00

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.. This file contains a series of comments that are used to include sections of this README in other files. Do not modify these comments unless you know what you are doing. tag:intro-begin

|build-status|

.. |build-status| image:: https://img.shields.io/azure-devops/build/certbot/ba534f81-a483-4b9b-9b4e-a60bec8fee72/5/main
   :target: https://dev.azure.com/certbot/certbot/_build?definitionId=5
   :alt: Azure Pipelines CI status

.. image:: https://raw.githubusercontent.com/EFForg/design/master/logos/certbot/eff-certbot-lockup.png
  :width: 200
  :alt: EFF Certbot Logo

Certbot is part of EFFs effort to encrypt the entire Internet. Secure communication over the Web relies on HTTPS, which requires the use of a digital certificate that lets browsers verify the identity of web servers (e.g., is that really google.com?). Web servers obtain their certificates from trusted third parties called certificate authorities (CAs). Certbot is an easy-to-use client that fetches a certificate from Lets Encrypt—an open certificate authority launched by the EFF, Mozilla, and others—and deploys it to a web server.

Anyone who has gone through the trouble of setting up a secure website knows what a hassle getting and maintaining a certificate is. Certbot and Lets Encrypt can automate away the pain and let you turn on and manage HTTPS with simple commands. Using Certbot and Let's Encrypt is free.

.. _installation:

Getting Started
---------------
The best way to get started is to use our `interactive guide <https://certbot.eff.org>`_. It generates instructions based on your configuration settings. In most cases, youll need `root or administrator access <https://certbot.eff.org/faq/#does-certbot-require-root-administrator-privileges>`_ to your web server to run Certbot.

Certbot is meant to be run directly on your web server on the command line, not on your personal computer. If youre using a hosted service and dont have direct access to your web server, you might not be able to use Certbot. Check with your hosting provider for documentation about uploading certificates or using certificates issued by Lets Encrypt.

Contributing
------------

If you'd like to contribute to this project please read `Developer Guide
<https://certbot.eff.org/docs/contributing.html>`_.

This project is governed by `EFF's Public Projects Code of Conduct <https://www.eff.org/pages/eppcode>`_.

Links
=====

.. Do not modify this comment unless you know what you're doing. tag:links-begin

Documentation: https://certbot.eff.org/docs

Software project: https://github.com/certbot/certbot

Changelog: https://github.com/certbot/certbot/blob/main/certbot/CHANGELOG.md

For Contributors: https://certbot.eff.org/docs/contributing.html

For Users: https://certbot.eff.org/docs/using.html

Main Website: https://certbot.eff.org

Let's Encrypt Website: https://letsencrypt.org

Community: https://community.letsencrypt.org

ACME spec: `RFC 8555 <https://tools.ietf.org/html/rfc8555>`_

ACME working area in github (archived): https://github.com/ietf-wg-acme/acme

.. Do not modify this comment unless you know what you're doing. tag:links-end

.. Do not modify this comment unless you know what you're doing. tag:intro-end

.. Do not modify this comment unless you know what you're doing. tag:features-begin

Current Features
=====================

* Supports multiple web servers:

  - Apache 2.4+
  - nginx/0.8.48+
  - webroot (adds files to webroot directories in order to prove control of
    domains and obtain certificates)
  - standalone (runs its own simple webserver to prove you control a domain)
  - other server software via `third party plugins <https://certbot.eff.org/docs/using.html#third-party-plugins>`_

* The private key is generated locally on your system.
* Can talk to the Let's Encrypt CA or optionally to other ACME
  compliant services.
* Can get domain-validated (DV) certificates.
* Can revoke certificates.
* Supports ECDSA (default) and RSA certificate private keys.
* Can optionally install a http -> https redirect, so your site effectively
  runs https only.
* Fully automated.
* Configuration changes are logged and can be reverted.

.. Do not modify this comment unless you know what you're doing. tag:features-end
S
Description
Certbot is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.
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