[6.12.4 Unable to start dockers with custom IPv6 Address]

Just needed to reboot my server to do some electrical work and ofc this is still an issue.

 

Dear Unraid staff: please at least acknowledge this issue!

[6.12.4 Unable to start dockers with custom IPv6 Address]

Yeah, some response would be great, at least so that we know this is being worked on / even known by the devs!

[6.12.4 Unable to start dockers with custom IPv6 Address]

And just as a small reminder: a reboot clears this fix

 

(and still no comment from Unraid staff, wow I am starting to regret buying a licence if this is how bug reports are handled)

[6.12.4 Unable to start dockers with custom IPv6 Address]

On 9/24/2023 at 2:38 PM, maximushugus said:

The command above is in two lines. You have to stop docker before modifying the file et restart after

 

Ok so just to be sure:

 

  # add or remove custom network
  for NETWORK in $INCLUDE; do
    if [[ ! $DOCKER_CUSTOM_NETWORKS =~ "$NETWORK " ]]; then
      # automatic assignment
      AUTO=${NETWORK/./_}
      AUTO=DOCKER_AUTO_${AUTO^^}
      if [[ ${!AUTO} == no ]]; then
        [[ $NETWORKS =~ "$NETWORK " ]] && docker network rm $NETWORK >/dev/null
        continue
      fi
      # add auto defined networks
      SUBNET=; GATEWAY=; SERVER=; RANGE=;
      IPV4=$(ip -br -4 addr show $NETWORK|awk '{print $3;exit}')
      if [[ -n $IPV4 ]]; then
        SUBNET=$(ip -4 route show $IPV4 dev $NETWORK|awk '{print $1;exit}')
        SERVER=${IPV4%/*}
        DHCP=${NETWORK/./_}
        DHCP=DOCKER_DHCP_${DHCP^^}
        RANGE=${!DHCP}
        GATEWAY=$(ip -4 route show default dev $NETWORK|awk '{print $3;exit}')
      fi
      SUBNET6=; GATEWAY6=; SERVER6=; RANGE6=;
#      IPV6=$(min6 $(max6 $(wipe $(ip -br -6 addr show $NETWORK scope global|awk '{$2="";print;exit}'))|sort|head -1))\
      IPV6=$(ip -6 addr show $NETWORK mngtmpaddr|awk '/^ +inet6 /{print $2;exit}')
      [[ -z $IPV6 ]] && IPV6=$(ip -6 addr show $NETWORK scope global permanent|awk '/^ +inet6 /{print $2;exit}'
      if [[ -n $IPV6 ]]; then
        # get IPV6 subnet, preset to /64 if single host address is given
        [[ ${IPV6#*/} == 128 ]] && SUBNET6=$(echo $IPV6|sed -r 's/^([^:]+):([^:]+):([^:]+):([^:]+).*$/\1:\2:\3:\4::\/64/') || SUBNET6=$(ip -6 route show $IPV6 dev $NETWORK|awk '{print $1;exit}')
        SERVER6=${IPV6%/*}
        DHCP6=${NETWORK/./_}
        DHCP6=DOCKER_DHCP6_${DHCP6^^}
        RANGE6=${!DHCP6}
        GATEWAY6=$(ip -6 route show default dev $NETWORK|awk '{print $3;exit}')
        # replace link local address for first address in subnet
        [[ ${GATEWAY6:0:4} == fe80 ]] && GATEWAY6=${SUBNET6%/*}1
      fi
    else
      # add user defined networks
      IPV4=; IPV6=;

 

I have commented the original line and then added your 2 lines. However when I start docker I get:

 

root@Tower:~# /etc/rc.d/rc.docker start
/etc/rc.d/rc.docker: line 364: syntax error near unexpected token `else'
/etc/rc.d/rc.docker: line 364: `    else'

 

So that is really strange?

 

edit:

Ah I see it now, the 2nd line is missing a `)` at the end. I have added that and will try IPv6 again

[6.12.4 Unable to start dockers with custom IPv6 Address]

On 9/14/2023 at 10:03 PM, maximushugus said:

I upgraded yesterday from unraid 6.11.5 to 6.12.4 (so I cannot say from when 6.12 version this problem starts), and I'm also impacted by this bug.

I managed to fix it by :

 

1) Stopping docker service

2) Modifying /usr/locale/etc/rc.d/rc.docker file :

at line 350 from :

IPV6=$(min6 $(max6 $(wipe $(ip -br -6 addr show $NETWORK scope global|awk '{$2="";print;exit}'))|sort|head -1))

to

IPV6=$(ip -6 addr show $NETWORK mngtmpaddr|awk '/^ +inet6 /{print $2;exit}')
[[ -z $IPV6 ]] && IPV6=$(ip -6 addr show $NETWORK scope global permanent|awk '/^ +inet6 /{print $2;exit}'

3) Restarting the docker service

 

But I hope there will be a fix from unraid in future version !

 

Should that be on one line?

root@Tower:~# /etc/rc.d/rc.docker start
/etc/rc.d/rc.docker: line 366: syntax error near unexpected token `else'
/etc/rc.d/rc.docker: line 366: `    else'

It goes wrong on a different line. Or should it also contain an if; then?

[6.12.4 Unable to start dockers with custom IPv6 Address]

So, it seems that this does not have a high prio, so I will rolling back this weekend this is taking way to long and is really a show stopper for me.

[6.12.4 Unable to start dockers with custom IPv6 Address]

On 9/5/2023 at 10:30 PM, mine said:

I have exactly the same issue. Also for me, not using IPv6 isn't an option. So I rolled back to 6.12.3.

I hope this gets fixed in the next update.

 

Did you had any issues downgrading? I also want to get IPv6 back but never downgraded Unraid before so not to sure if that will go without problems.

[6.12.4 Unable to start dockers with custom IPv6 Address]

I also posted about this on: https://forums.unraid.net/topic/110395-docker-host-network-access-not-working-after-hard-reboot/?do=findComment&comment=1302630

 

edit: for my only using an ipv4 address for the container does not seem to work

 

edit2: it does work after making some change to the container (e.g. re-creating it)

 

Will wait for a day then rollback as only ipv4 is not an option for me (to much stuff to change)