[tor-relays] [bridge operators] Fix required for WebTunnel docker bridges

Hello bridge operators,

During yesterday's upgrade of our WebTunnel docker image, some bridges
stopped working due to an operating system issue[1]. Only WebTunnel
operators using our official Docker image are affected.

If your bridge is affected and you don’t apply this fix, it will remain
non-functional and users will not be able to connect. You need to take
action now!

### How to check if your bridge is affected

Run the command:

`docker ps`

If your WebTunnel container is stuck in a restart loop (shows
`Restarting (1)` or similar message), then your bridge needs fixing:

thetorproject/webtunnel-bridge:latest   "/usr/local/bin/star…"   22 hours ago   Restarting (1) 21 seconds ago              webtunnelBridge5a35b7dd47c6   containrrr/

### How to fix your WebTunnel docker bridge

1. List your Docker volumes:

docker volume list 

2. Identify the persistent volume for Tor, then run (adjust the volume name accordingly):

docker run --rm -it -v root_webtunnel-tor-state:/var/lib/tor debian chown -R 101 /var/lib/tor

3. Restart your bridge:

docker compose up -d

If you need help, please reach out to us on irc #tor-relays
(irc.oftc.net) or matrix: https://matrix.to/#/\#tor\-relays:matrix\.org\.

Thank you for running bridges!

gus
[1] Please upgrade tor to 0.4.8.17 (#52) · Issues · The Tor Project / Anti-censorship / Pluggable Transports / WebTunnel · GitLab

···

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The Tor Project
Community Team Lead

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