cfra

traefik docker API version fix 1.24

apt-cache madison docker-ce
apt-get install docker-ce=5:28.5.2-1~ubuntu.22.04~jammy
apt-get install docker-ce=5:28.5.2-1~ubuntu.24.04~noble
apt-mark hold docker-ce

cfra

Migrate dnsimple_records to dnsimple_zone_records

For some reason, DNSimple decided that they need to rename their DNS record resource from dnsimple_record to dnsimple_zone_record.

This requires a quite cumbersome migration on the user's side and the official migration guide leaves a lot to be desired if you have more than a handful of DNS records.

I won't go into the full details of the migration, as it will probably also be somewhat dependent on you exact setup.

cfra

[[inputs.http]]
  name_override = "opendtu"
  urls = [
    "http://opendtu.example.com/api/livedata/status?inv=123456788", # Inverter 1
    "http://opendtu.example.com/api/livedata/status?inv=123456789", # Inverter 2
  ]
  data_format = "json_v2"
  [[inputs.http.json_v2]]
    [[inputs.http.json_v2.tag]]
      path = "inverters.0.serial"

cfra

Wireguard auf dem Server

apt update
apt upgrade
apt install wireguard

cd /etc/wireguard
umask 077
wg genkey | tee server.priv | wg pubkey > server.pub

cfra

Steps to migrate existing Django app to new user model

This all refers to PostgreSQL, on other databases it will probably be different.

1. Create the new User model as an exact copy of django.contrib.auth.models.User (we assume it will be user.User then)

2. Create the migrations and commit them

3. Run the following SQL to simulate that the migration has run

SELECT * FROM django_migrations_id_seq;

cfra

Amp Power calculations

Beispiel, t.amp TSA 4-700

Warnung, dieses Dokument dient aktuell dazu die Ueberlegungen niederzuschreiben um sie zu pruefen, es ist moeglicherweise nicht korrekt.

Datenblatt

https://images.static-thomann.de/pics/atg/atgdata/document/manual/218915_c_218915_325986_325988_v1_r1_de_online.pdf

cfra

#!/usr/bin/env python
#
#    DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
#                    Version 2, December 2004
#
# Copyright (C) 2004 Sam Hocevar 14 rue de Plaisance, 75014 Paris, France
# Everyone is permitted to copy and distribute verbatim or modified
# copies of this license document, and changing it is allowed as long
# as the name is changed.
#

cfra

Situation

We have a failing disk.

There is data on the disk that we would like to recover, if at all possible.

We can still access the disk using ddrescue, but it is really slow, when we just try to dump the disk, estimated runtime is more than a year.

We are not actually interested in all the blocks of the disk: There are only specific

cfra

--- /usr/bin/passmenu	2021-06-12 18:06:38.000000000 +0200
+++ /usr/local/bin/mypassmenu	2021-07-22 11:19:24.138521764 +0200
@@ -28,6 +28,20 @@
 
 [[ -n $password ]] || exit
 
+if [[ ${password%-otp} != ${password} ]]; then
+	code_file="$prefix/2fa/$password/code.gpg"
+	[[ -e "$code_file" ]] || {
+		mkdir -p "$prefix/2fa/$password"

cfra

from django.conf import settings
from django.db.models.fields import NOT_PROVIDED

from wagtail.admin.edit_handlers import FieldPanel, MultiFieldPanel


class TranslatedFieldPanel(MultiFieldPanel):
    """
    Allow editing of translated fields.