Portainer Stacks install with local config file.

[MattWestb]

With portainer this stack setting works great for my (on the RPi Zero with forced Alpine version for getting it working):

services:
  rtl_433:
    container_name: rtl_433
    image: hertzg/rtl_433:alpine-3.12-master
    restart: unless-stopped
    environment:
      - TZ=Europe/Vienna
    volumes:
      - /volume1/rtl_433:/etc/rtl_433
    devices:
      - /dev/bus/usb/001/003

With "normal ARMs" that dont have Alpine problems use image: hertzg/rtl_433:master .

If all going well you is getting one new directory in your host system for the config at /volume1/rtl_433/ but you dont have any config file in it.
For getting one of your current running version you need open one CLI in the container and copy the example file to the sheared config directory.
My command was cp /usr/local/etc/rtl_433/rtl_433.example.conf /etc/rtl_433/rtl_433 .conf.
Now you have one config file at /volume1/rtl_433/rtl_433.conf in the host OS that shall being used on container start.

Reattached kernel driver
rtl_433 version 22.11 (2022-11-19) inputs file rtl_tcp RTL-SDR with TLS
Use -h for usage help and see https://triq.org/ for documentation.
Trying conf file at "rtl_433.conf"...
Trying conf file at "/root/.config/rtl_433/rtl_433.conf"...
Trying conf file at "/usr/local/etc/rtl_433/rtl_433.conf"...
Trying conf file at "/etc/rtl_433/rtl_433.conf"...
Reading conf from "/etc/rtl_433/rtl_433.conf".
Publishing MQTT data to 192.168.2.13 port 1883
Publishing device info to MQTT topic "rtl_433[/id]".
Publishing data to InfluxDB (http://192.168.2.13:8086/api/v2/write?org=1dafaeb4fdf04b63&bucket=RTL_433/autogen)
[Protocols] Registered 192 out of 223 device decoding protocols [ 1-4 8 11-12 15-17 19-23 25-26 29-36 38-60 63 67-71 73-100 102-105 108-116 119-121 124-128 130-149 151-161 163-168 170-175 177-197 199 201-215 217-223 ]
[SDR] Found 1 device(s)
[SDR] trying device  0:  Realtek, RTL2838UHIDIR, SN: PPM+79
Detached kernel driver
Found Rafael Micro R820T tuner
Exact sample rate is: 250000.000414 Hz
[SDR] Using device 0: Generic RTL2832U OEM
[R82XX] PLL not locked!
Allocating 15 zero-copy buffers
MQTT Connected...
MQTT Connection established.

Editing the config from the OS or shared recourse the normal way and you dont need deploying the container every time only restarting it and can using the "normal" settings in the config and not need the CLI version.

I have MQTT and Influxdb V2 plus CLI logging as output and looks working great and can see what the system is doing.
Some other setting that is good putting in the config:

report_meta level
report_meta stats
report_meta time:unix:usec:utc
report_meta protocol
ppm_error     80

but put in your dongle PPM or deleting it if you dont knowing it.