changing ip tables default during docker installation

Gummibaer9710 · 6. Mai 2020

I installed default installation of armbian image with 4.9er kernel and installing omv 5.0 with armbian softy tool. Then I installed docker via omv webpage. On default the new iptables nft is used which breaks using "docker network create ..." because it seems iptable nft is still not supported using docker.

After changing iptables usage it worked:

Switching to the legacy version:

# update-alternatives --set iptables /usr/sbin/iptables-legacy

# update-alternatives --set ip6tables /usr/sbin/ip6tables-legacy

# update-alternatives --set arptables /usr/sbin/arptables-legacy

# update-alternatives --set ebtables /usr/sbin/ebtables-legacy

Would be nice if the omv installation skript would be do these things automatically to avoid searching why "docker network create" is not working with strange error messages.

ryecoaaron · 6. Mai 2020

Which omv installation script? The one I maintain (armbian softy uses this script too) shouldn't change it because it doesn't install docker. The docker installation script that omv-extras uses could do it but that might break peoples firewall rules. Most users aren't creating networks so I don't want to make this the default behavior.

Gummibaer9710 · 6. Mai 2020

Ok I understand. Would it be possible to show some window or remark before installation of docker via omv webpage if debian buster is used? So other people would spend less time in searching for error message.

I searched some time to find this issue.

ryecoaaron · 6. Mai 2020

Zitat von Gummibaer9710

Would it be possible to show some window or remark before installation of docker via omv webpage if debian buster is used? So other people would spend less time in searching for error message.

Do you mean on the Docker tab of omv-extras?

Gummibaer9710 · 6. Mai 2020

Yes this would be one solution but with bold letters or some pop up hint.

ryecoaaron · 6. Mai 2020

Zitat von Gummibaer9710

this would be one solution but with bold letters or some pop up hint.

No popups. Yuck. From experience putting bold messages and pinning things in the forum, people still won't read it. So, I will add a message. Did you have some other location you think it should be? I guess I could add a button to make the change.

Gummibaer9710 · 6. Mai 2020

For now not, the text below docker installation is a good place. But still has to be read by everyone. May be you have more experience were to put it more. Maye be also some extra button near to docker installation as addition.

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