evcc: startup fails if not connected to internet

[Pebberman]

Describe the bug

Internet access is down. However, all systems in the home network work and can communicate. Starting evcc fails with the message:

Error during startup. Check your configuration and restart.
cannot create tariff type 'grünstromindex': Get "https://api.corrently.io/v2.0/gsi/prediction?zip=01234": dial tcp: lookup api.corrently.io: i/o timeout

Absence of the Internet should only produce a warning, not an error.

Steps to reproduce

1. configuration with tariff
2. disconnect internet from outside (but keep WLAN running)
3. start evcc

Configuration details

tariffs: 
    currency: EUR # (default EUR) 
    grid:
    # static grid price
      type: fixed 
      price: 0.278 # [currency]/kWh 
    feedin:
    # rate for feeding excess (pv) energy to 
the grid
      type: fixed
      price: 0.08 # [currency]/kWh

Log details

Error during startup. Check your configuration and restart.
cannot create tariff type 'grünstromindex': Get "https://api.corrently.io/v2.0/gsi/prediction?zip=01234": dial tcp: lookup api.corrently.io: i/o timeout

What type of operating system are you running?

Linux

Version

evcc version 0.128.1

[andig]

What would determine if you can work without the tariff, i.e. if you don‘t have solar and only use Tibber?

[Pebberman]

I have currently commented out the tariff. So evcc is running.

[VolkerK62]

seems to be part of #14496 ?

[andig]

I have currently commented out the tariff. So evcc is running.

Sure. But why would you want it to run if you have e.g. Tibber and nothing else? Isn't a working tariff a precondition? Closing as duplicate of #14496.

[VolkerK62]

I think not to start is not consistent to #14341

Ist weder Grid/PV/DynamischerTarif vorhanden gibte es nur Aus/Schnell

Hintergrund: Sobald es ein Grid Meter gibt, hat evcc alles, um PV-Steuerung zu machen. Heißt, wenn du jetzt Strom in deinem Haus erzeugen würdest (Balkon PV in die Steckdose). Würde das alles schon klappen, ohne dass du eine PV konfigurierst. Daher gehen wir, aktuell, bei einem vorhandenen Grid-Meter immer davon aus, dass es auch Einspeisung geben kann.