Comment on How do I stop Docker trying to pull from IPv6?

 docker run hello-world
Unable to find image 'hello-world:latest' locally
docker: Error response from daemon: Get "https://registry-1.docker.io/v2/library/hello-world/manifests/sha256:ec153840d1e635ac434fab5e377081f17e0e15afab27beb3f726c3265039cfff": dial tcp [2600:1f18:2148:bc00:eff:d3ae:b836:fa07]:443: connect: network is unreachable

Run 'docker run --help' for more information

• tychosmoose@piefed.social ⁨3⁩ ⁨days⁩ ago

  Well crap. Do you have no ipv6 address now in ip addr?

  Guess I gave Docker too much benefit of the doubt and assumed it should failover to v4 once v6 was disabled. Bad assumption on my part.

  Could it be a DNS problem? If you dig registry-1.docker.io +short does it return an ipv4 or v6 address?

  It looks like there have been sporadic reports of problems from people since last year.

  source

  • MysteriousSophon21@lemmy.world ⁨2⁩ ⁨days⁩ ago

    Try adding {“ipv6”: false} to your /etc/docker/daemon.json file (create it if it doesnt exist), then restart docker with sudo systemctl restart docker - this forces docker to use IPv4 only.

    source

    • tychosmoose@piefed.social ⁨2⁩ ⁨days⁩ ago

      This flag seems to only disable ipv6 on the default Docker bridge network, not daemon-wide. At least per this discussion.

      source
  • Zagorath@aussie.zone ⁨3⁩ ⁨days⁩ ago

    Do you have no ipv6 address now in ip addr

    Just comparing it by eye, there’s no change.

    zag@raspberrypi:~ $ man dig
    No manual entry for dig
    zag@raspberrypi:~ $ which dig
    zag@raspberrypi:~ $ sudo apt install dig
    Reading package lists... Done
    Building dependency tree... Done
    Reading state information... Done
    E: Unable to locate package dig
    

    But if I ping it

    $ ping registry-1.docker.io
    PING registry-1.docker.io (107.20.112.188) 56(84) bytes of data.
    

    source

    • tychosmoose@piefed.social ⁨3⁩ ⁨days⁩ ago

      It's in the dnsutils package.

      source

      • Zagorath@aussie.zone ⁨2⁩ ⁨days⁩ ago

        52.207.69.161
        52.21.128.203
        3.224.238.37
        44.218.153.24
        54.210.249.78
        18.232.25.125
        52.72.195.97
        54.161.169.181
        

        source