No3x

How to view files of a Home Assistant Add-on in Home Assistant OS

by No3x on 27th April 2025 in Home Assistant • 0 Comments

Sometimes you need to access internal files of a add-on. In home assistant addons are basically docker containers which managed by Home Assistant Supervisor. We can just connect to these containers and inspect the file system. Example: Nginx Proxy Manager Let’s Encrypt You might see this output if something went wrong requesting a Let’s Encrypt certificate.

[4/27/2025] [2:04:14 PM] [Nginx ] › ⬤ debug Deleting file: /config/nginx/temp/letsencrypt_24.conf<br>[4/27/2025] [2:04:14 PM] [Nginx ] › ℹ info Reloading Nginx<br><br>[4/27/2025] [2:04:14 PM] [Express ] › ⚠ warning Command failed: certbot certonly --config "/etc/letsencrypt.ini" --work-dir "/tmp/letsencrypt-lib" --logs-dir "/tmp/letsencrypt-log" --cert-name "npm-24" --agree-tos --authenticator webroot --email "example@example.com" --preferred-challenges "dns,http" --domains "my.dyn.com"<br>Saving debug log to /tmp/letsencrypt-log/letsencrypt.log<br>Some challenges have failed.<br>Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /tmp/letsencrypt-log/letsencrypt.log or re-run Certbot with -v for more details.

[4/27/2025] [2:04:14 PM] [Nginx ] › ⬤ debug Deleting file: /config/nginx/temp/letsencrypt_24.conf [4/27/2025] [2:04:14 PM] [Nginx ] › ℹ info Reloading Nginx [4/27/2025] [2:04:14 PM] [Express ] › ⚠ warning Command failed: certbot certonly --config "/etc/letsencrypt.ini" --work-dir "/tmp/letsencrypt-lib" --logs-dir "/tmp/letsencrypt-log" --cert-name "npm-24" --agree-tos --authenticator webroot --email "example@example.com" --preferred-challenges "dns,http" --domains "my.dyn.com" Saving debug log to /tmp/letsencrypt-log/letsencrypt.log Some challenges have failed. Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /tmp/letsencrypt-log/letsencrypt.log or re-run Certbot with -v for more details.

Unfortunately no details… Read more →

How to expose Home Assistant publicly with SSL with duckdns and Nginx Proxy Manager

by No3x on 26th March 2025 in Home Assistant • 0 Comments

After spending quite a time, trying to set this up I have come down to the following things that worked for me, maybe it will help someone: Duckdns First create a duckdns account and setup the DuckDNS addon. If you have your own domain you can add a subdomain A record to resolve to your public IP and not use… Read more →

Github Action setup-gradle Saving Configuration-Cache State

by No3x on 24th January 2025 in Blog, Java • 0 Comments

In case you missed it, Gradle configuration caching is no longer enabled by default in certain scenarios. Here’s what you need to know to ensure your builds leverage this feature effectively. Important Note: To avoid potentially leaking secrets in the configuration-cache entry, the action will only save or restore configuration-cache data if the cache-encryption-key parameter is set. What is the Gradle Configuration… Read more →

openHAB: send Android Timer Alarm

by No3x on 30th December 2021 in openHAB • 0 Comments

To send a status update to openhab if the timer alarm is going off on the android phone we need some tools. First we need the openhab app installed and configured with the tasker plugin enabled Second we need tasker Third we need Automate to read notifications and, create a little logic. Automate Flow (OnePlus tested) I will explain the… Read more →

openHAB 3: conditional log Items

by No3x on 30th December 2021 in openHAB • 0 Comments

I want to skip the logging for some items like Spotify track progress (which updates every second) so that the logs are not polluted. Since openHAB version 3 log4j2 is used as logging framework and the log4j2.xml has to be used to configure logging. We can use a RegexFilter to configure such behaviour. How to The RegexFilter allows the formatted… Read more →

Gradle dependencySubstitution

by No3x on 19th July 2019 in Blog, Java, Tutorials • 0 Comments

I worked on a project that uses a framework. To add a new sub class I had to make the base class, that is part of the framework, open for extension. I was able to compile the framework on my own without the need to create a local artifact repository then create a new artifact and new version by the… Read more →

WP Mail Logging Ownership

by No3x on 19th June 2019 in Blog, WordPress • 4 Comments

The ownership of the WordPress Plugin WP Mail Logging has been transferred to MailPoet. Their plans are to keep the plugin alive and maintain it. Read more →

esp2866 grill

by No3x on 8th July 2018 in esp2866, Projects • 0 Comments

A simple UI to control a fan in a lotus grill with an esp8266 with arduino interface. The chip creates an access point (AP) and uses a captive portal to provide easy access to the UI. UI The UI provides the following actions: Turn the fan on/off Set the speed of the fan View the connection status to the server… Read more →

Letsencrypt Wildcard Certificate HowTo

by No3x on 14th March 2018 in Common • 0 Comments

After the delay of the ACMEv2 including the wildcard-endpoint [2] it finally is live today [3]. In addition to the ACME v2 requirement, requests for wildcard certificates require an DNS “TXT” record to verify control over the domain. Just “upgraded” my certificate to an root certificate follwing these steps: 1. Upgraded my certbot

cd /opt/letsencrypt
git reset --hard
git pull

cd /opt/letsencrypt

git reset --hard

git pull

2. Requested certificate (command is based… Read more →

X-Ring with Google Calendar

by No3x on 19th July 2017 in esp2866, X-Ring • 4 Comments

As application for the X-Ring RGB Strip I came up with the following idea: querying the next event in my Google Calendar tagged with #wecker and then visualize the remaining time. I have illustrated the structure of all components in the following figure: Google Calendar The Wemos D1 mini queries the next event by accessing my Google Calendar. This is done… Read more →