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This repository has been archived by the owner on Jun 20, 2024. It is now read-only.
The iptables-nft 1.8.8 is not forward-compatible with older iptables-nft, this can be illustrated by this example https://github.com/Snorch/iptables-problem on the setup unrelated to weavenet.
In weaveworks/weave-npc we have even older 1.8.3 iptables-nft. So then I try to setup Kubernetes with weavenet on Almalinux-9 (it has 1.8.8) I get:
kubectl get pods -n system -A
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system coredns-565d847f94-jhwth 0/1 ContainerCreating 0 6d12h
kube-system coredns-565d847f94-q8xsh 0/1 ContainerCreating 0 6d12h
kube-system etcd-master-c105a43f.localdomain 1/1 Running 0 6d12h
kube-system kube-apiserver-master-c105a43f.localdomain 1/1 Running 0 6d12h
kube-system kube-controller-manager-master-c105a43f.localdomain 1/1 Running 0 6d12h
kube-system kube-proxy-bx2nd 1/1 Running 0 6d12h
kube-system kube-scheduler-master-c105a43f.localdomain 1/1 Running 0 6d12h
kube-system weave-net-mnmbf 0/2 CrashLoopBackOff 3664 (4m15s ago) 6d12h
kubectl logs weave-net-mnmbf weave -n kube-system
DEBU: 2022/12/05 07:00:34.716422 [kube-peers] Checking peer "aa:c3:fd:b0:26:69" against list &{[]}
Peer not in list; removing persisted data
INFO: 2022/12/05 07:00:34.775607 Command line options: map[conn-limit:200 datapath:datapath db-prefix:/weavedb/weave-net docker-api: expect-npc:true http-addr:127.0.0.1:6784 ipalloc-init:consensus=0 ipalloc-range:10.32.0.0/12 metrics-addr:0.0.0.0:6782 name:aa:c3:fd:b0:26:69 nickname:master-c105a43f.localdomain no-dns:true no-masq-local:true port:6783]
INFO: 2022/12/05 07:00:34.775655 weave git-34de0b10a69c
FATA: 2022/12/05 07:00:35.110327 configuring iptables: ipt.ListChains(filter): running [/sbin/iptables -t filter -S --wait]: exit status 1: iptables v1.8.3 (nf_tables): table `filter' is incompatible, use 'nft' tool.
I understand that we can just disable firewalld or just remove those rules and weavenet would work, but it's not always an option.
I also see #3465 (comment) where we've switched to iptables-nft in weavenet container and that leads to my problem when iptables-nft on host is newer than in weavenet ct.
Maybe we can update iptables-nft to 1.8.8 in weavenet ct? Would also appreciate any other suggestions.
The text was updated successfully, but these errors were encountered:
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The iptables-nft 1.8.8 is not forward-compatible with older iptables-nft, this can be illustrated by this example https://github.com/Snorch/iptables-problem on the setup unrelated to weavenet.
In weaveworks/weave-npc we have even older 1.8.3 iptables-nft. So then I try to setup Kubernetes with weavenet on Almalinux-9 (it has 1.8.8) I get:
Because firewalld on host is using
--dport 30000:32767
rules, which after https://git.netfilter.org/iptables/commit/?id=6aba94ef5 commit in 1.8.8 creates rules which can't be handled by 1.8.3.I understand that we can just disable firewalld or just remove those rules and weavenet would work, but it's not always an option.
I also see #3465 (comment) where we've switched to iptables-nft in weavenet container and that leads to my problem when iptables-nft on host is newer than in weavenet ct.
Maybe we can update iptables-nft to 1.8.8 in weavenet ct? Would also appreciate any other suggestions.
The text was updated successfully, but these errors were encountered: