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[Support]: amd64 docker container exits after "[Errno -2] Name or service not known"

See original GitHub issue

Describe the problem you are having

I cannot get the container to start. Using docker-compose, python 3.8 on ubuntu server 20.04. Server’s name is “kathy,” running MQTT broker in another container on port 1883. Other containers can access MQTT broker.

Any help would be appreciated.

Docker compose file:

version: "3.3"
services:
  frigate:
    container_name: frigate
    image: blakeblackshear/frigate:stable-amd64
    restart: unless-stopped
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /media/raid/allshare/frigateconf/config.yml:/config/config.yml:ro
      - /media/camdrive/frigate:/media/frigate
    ports:
      - "5000:5000"
      - "1935:1935"
    environment:
      FRIGATE_RTSP_PASSWORD: "password"

Version

0.9.2-25bb515 (from log file)

Frigate config file

mqtt:
  host: kathy:1883

cameras:
  camera1:
    ffmpeg:
      inputs:
        - path: "rtsp://user:pass@192.168.1.254:554"
          roles:
            - rtmp
            - detect
    detect:
      width: 2688
      height: 1520

Relevant log output

Creating frigate ... done
Attaching to frigate
frigate    | [s6-init] making user provided files available at /var/run/s6/etc...exited 0.
frigate    | [s6-init] ensuring user provided files have correct perms...exited 0.
frigate    | [fix-attrs.d] applying ownership & permissions fixes...
frigate    | [fix-attrs.d] done.
frigate    | [cont-init.d] executing container initialization scripts...
frigate    | [cont-init.d] done.
frigate    | [services.d] starting services
frigate    | [services.d] done.
frigate    | [2021-10-23 10:31:46] frigate.app                    INFO    : Starting Frigate (0.9.2-25bb515)
frigate    | [2021-10-23 10:31:46] frigate.app                    INFO    : Creating directory: /tmp/cache
frigate    | Starting migrations
frigate    | [2021-10-23 10:31:46] peewee_migrate                 INFO    : Starting migrations
frigate    | There is nothing to migrate
frigate    | [2021-10-23 10:31:46] peewee_migrate                 INFO    : There is nothing to migrate
frigate    | [Errno -2] Name or service not known
frigate    | [cmd] python3 exited 1
frigate    | [cont-finish.d] executing container finish scripts...
frigate    | [cont-finish.d] done.
frigate    | [s6-finish] waiting for services.
frigate    | [s6-finish] sending all processes the TERM signal.
frigate    | [s6-finish] sending all processes the KILL signal and exiting.