DNS resolution fails after a few days of uptime

[tommitytom]

Using PIA, the container works for a number of days, and will all of a sudden stop working. This has been happpening for the past year or so. Restarting the container fixes the issue for a few days, before it happens again.

Reserved Port: 30334  Wed Mar  9 17:35:02 AEDT 2022
Reserved Port: 30334  Wed Mar  9 17:50:03 AEDT 2022
Reserved Port: 30334  Wed Mar  9 18:05:04 AEDT 2022
Reserved Port: 30334  Wed Mar  9 18:20:05 AEDT 2022
2022-03-09 18:22:21 [stockholm406] Inactivity timeout (--ping-restart), restarting
2022-03-09 18:22:21 SIGUSR1[soft,ping-restart] received, process restarting
2022-03-09 18:22:26 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
2022-03-09 18:22:26 TCP/UDP: Preserving recently used remote address: [AF_INET]46.246.3.242:1198
2022-03-09 18:22:26 UDP link local: (not bound)
2022-03-09 18:22:26 UDP link remote: [AF_INET]46.246.3.242:1198
2022-03-09 18:23:26 [UNDEF] Inactivity timeout (--ping-restart), restarting
2022-03-09 18:23:26 SIGUSR1[soft,ping-restart] received, process restarting
2022-03-09 18:23:31 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
2022-03-09 18:23:31 TCP/UDP: Preserving recently used remote address: [AF_INET]195.246.120.19:1198
2022-03-09 18:23:31 UDP link local: (not bound)
2022-03-09 18:23:31 UDP link remote: [AF_INET]195.246.120.19:1198
2022-03-09 18:24:32 [UNDEF] Inactivity timeout (--ping-restart), restarting
2022-03-09 18:24:32 SIGUSR1[soft,ping-restart] received, process restarting
2022-03-09 18:24:37 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
2022-03-09 18:24:37 TCP/UDP: Preserving recently used remote address: [AF_INET]195.246.120.53:1198
2022-03-09 18:24:37 UDP link local: (not bound)
2022-03-09 18:24:37 UDP link remote: [AF_INET]195.246.120.53:1198
2022-03-09 18:25:37 [UNDEF] Inactivity timeout (--ping-restart), restarting
2022-03-09 18:25:37 SIGUSR1[soft,ping-restart] received, process restarting
2022-03-09 18:25:42 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
2022-03-09 18:25:47 RESOLVE: Cannot resolve host address: sweden.privacy.network:1198 (Try again)
2022-03-09 18:25:52 RESOLVE: Cannot resolve host address: sweden.privacy.network:1198 (Try again)
2022-03-09 18:25:52 Could not determine IPv4/IPv6 protocol
2022-03-09 18:25:52 SIGUSR1[soft,init_instance] received, process restarting
2022-03-09 18:25:57 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
2022-03-09 18:26:02 RESOLVE: Cannot resolve host address: sweden.privacy.network:1198 (Try again)
2022-03-09 18:26:07 RESOLVE: Cannot resolve host address: sweden.privacy.network:1198 (Try again)
2022-03-09 18:26:07 Could not determine IPv4/IPv6 protocol

After this point it just constantly writes the the last part of the log to the console every 5 minutes or so:

2022-03-09 18:25:47 RESOLVE: Cannot resolve host address: sweden.privacy.network:1198 (Try again)
2022-03-09 18:25:52 RESOLVE: Cannot resolve host address: sweden.privacy.network:1198 (Try again)
2022-03-09 18:25:52 Could not determine IPv4/IPv6 protocol
2022-03-09 18:25:52 SIGUSR1[soft,init_instance] received, process restarting

Config:

services:
  transmission:
    container_name: transmission
    image: haugene/transmission-openvpn:3.7.1
    restart: unless-stopped
    cap_add:
      - NET_ADMIN
    devices:
      - /dev/net/tun
    ports:
      - 9091:9091
      - 8888:8888
    dns:
      - 1.1.1.1
      - 8.8.8.8
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - <redacted>
    environment:
      - OPENVPN_PROVIDER=PIA
      - OPENVPN_USERNAME=<redacted>
      - OPENVPN_PASSWORD=<redacted>
      - PIA_OPENVPN_CONFIG_BUNDLE=openvpn
      - OPENVPN_CONFIG=sweden
      - OPENVPN_OPTS=--inactive 3600 --ping 10 --ping-exit 60
      - LOCAL_NETWORK=192.168.0.0/24
      - TRANSMISSION_INCOMPLETE_DIR_ENABLED=false
      - TRANSMISSION_DOWNLOAD_DIR=/data/downloads
      - TRANSMISSION_DOWNLOAD_QUEUE_SIZE=4
      - TRANSMISSION_ALT_SPEED_DOWN=100000
      - TRANSMISSION_ALT_SPEED_ENABLED=false
      - TRANSMISSION_ALT_SPEED_TIME_BEGIN=480
      - TRANSMISSION_ALT_SPEED_TIME_DAY=127
      - TRANSMISSION_ALT_SPEED_TIME_ENABLED=true
      - TRANSMISSION_ALT_SPEED_TIME_END=60
      - TRANSMISSION_ALT_SPEED_UP=400
      - WEBPROXY_ENABLED=true
      - WEBPROXY_PORT=8888
    logging:
      driver: json-file
      options:
        max-size: 10m