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.

cfra

#!/usr/bin/env python3
import json
import sys

try:
    file_path = sys.argv[1]
except IndexError:
    sys.stderr.write(f"Usage: {sys.argv[0]} <file_path>\n")
    sys.exit(1)

cfra

---

- name: Reload networking (in-band)
  service:
    name: networking
    state: reloaded

- name: Reload networking (out-of-band)
  shell: ifreload --allow=mgmt
  async: 45