Upstream DNS Servers reset after update

Help docker
1

Pi-hole Version v5.0 Web Interface Version v5.0 FTL Version v5.0

I set my Upstream DNS servers to Cloudflare.

I have a process that checks for updates daily:

docker pull pihole/pihole:latest
docker stop pihole
docker rm -f pihole
docker run...
docker start pihole

After that, the Upstream DNS server is reset back to Google.

Is that normal? Shouldn't that config be persistent?

Thanks

Dave

2

What are you using for a compose file or docker run command?

Edit: Automated pulling of docker images is a bad practice.

3

I'm using docker run:

export DOCKER_DIR=/home/pi/docker

docker run -d \
    --name pihole \
    --net host \
    -e TZ="Europe/London" \
    -e WEBPASSWORD="fred" \
    -e ServerIP=192.168.1.124 \
    -v "$DOCKER_DIR/etc-pihole/:/etc/pihole/" \
    -v "$DOCKER_DIR/etc-dnsmasq.d/:/etc/dnsmasq.d/" \
    -v "$DOCKER_DIR/var-log/:/var/log/" \
    --dns=127.0.0.1 --dns=1.1.1.1 \
    --cap-add=NET_ADMIN \
    --restart=unless-stopped \
    pihole/pihole:latest

The update isn't automated.

Dave

4

My apologies, I assumed the script that you posted is run daily.

Check $DOCKER_DIR/etc-pihole/setupVars.conf before and after a restart.