http://bugzilla.opensuse.org/show_bug.cgi?id=1190407 Bug ID: 1190407 Summary: kubelet failed to create pod network sandbox: unable to set hairpin mode Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: All OS: Other Status: NEW Severity: Major Priority: P5 - None Component: Kubic Assignee: kubic-bugs@opensuse.org Reporter: s@stuartpb.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- I'm trying to roll out a fresh Kubernetes cluster on nodes running Kubic (using systemd-networkd, if that could be related). Shortly after running `kubeadm init` and `KUBECONFIG=/etc/kubernetes/admin.conf kubectl apply -f /usr/share/k8s-yaml/weave/weave.yaml` to add the CNI, then pasting the join command into other nodes, I'm seeing pods fail to start with events like this (on a coredns pod): ``` Warning FailedCreatePodSandBox 5m49s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to create pod network sandbox k8s_coredns-758b886957-ps5wc_kube-system_ddf332ce-dc22-4a03-8e4a-d5ee904936be_0(1a3938c9b41b9f0186a8e156b11b608bf606a7ed510df158921c09009063263e): error adding pod kube-system_coredns-758b886957-ps5wc to CNI network "weave": unable to allocate IP address: Post "http://127.0.0.1:6784/ip/1a3938c9b41b9f0186a8e156b11b608bf606a7ed510df158921...": dial tcp 127.0.0.1:6784: connect: connection refused Warning FailedCreatePodSandBox 5m35s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to create pod network sandbox k8s_coredns-758b886957-ps5wc_kube-system_ddf332ce-dc22-4a03-8e4a-d5ee904936be_0(ee4eb51fb8e49730c1d40d28af0116e2b34f9ad7d38abc67bcd91d112a20d7f9): error adding pod kube-system_coredns-758b886957-ps5wc to CNI network "weave": unable to set hairpin mode to true for bridge side of veth vethweplee4eb51: operation not supported Warning FailedCreatePodSandBox 5m20s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to create pod network sandbox k8s_coredns-758b886957-ps5wc_kube-system_ddf332ce-dc22-4a03-8e4a-d5ee904936be_0(6eea0c1bf1cb6cc9a6cd10901f34acbe2db16995105322dd03f35d2062e62c8f): error adding pod kube-system_coredns-758b886957-ps5wc to CNI network "weave": unable to set hairpin mode to true for bridge side of veth vethwepl6eea0c1: operation not supported Warning FailedCreatePodSandBox 5m7s kubelet Failed to create pod sandbox: rpc error: code = Unknown desc = failed to create pod network sandbox k8s_coredns-758b886957-ps5wc_kube-system_ddf332ce-dc22-4a03-8e4a-d5ee904936be_0(0a6110d500f0dffc97244f1836a2a99240e401c6fe8331d4df13ee43349fafb6): error adding pod kube-system_coredns-758b886957-ps5wc to CNI network "weave": unable to set hairpin mode to true for bridge side of veth vethwepl0a6110d: operation not supported ``` This happens for other pods I add to the cluster, too (for example, when installing Flux 2): they all get stuck with errors like this. -- You are receiving this mail because: You are the assignee for the bug.