Hi,
i try to deploy a Kubernetes cluster with OpenStack Magnum but the openstack-cloud-controller-manager pod fails to resolve the master node hostname.
Does magnum require further parameter to configure the DNS names of the master and minions? DNS resolution in the VMs works fine. Currently there is no Designate installed in the OpenStack setup.
openstack coe cluster template create kubernetes-cluster-template1 \ --image Fedora-AtomicHost-29-20190429.0.x86_64 \ --external-network public \ --dns-nameserver 8.8.8.8 \ --master-flavor m1.kubernetes \ --flavor m1.kubernetes \ --coe kubernetes \ --volume-driver cinder \ --network-driver flannel \ --docker-volume-size 25
openstack coe cluster create kubernetes-cluster1 \ --cluster-template kubernetes-cluster-template1 \ --master-count 1 \ --node-count 2 \ --keypair mykey
# kubectl get pods --all-namespaces -o wide NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE kube-system coredns-78df4bf8ff-mjp2c 0/1 Pending 0 36m <none> <none> <none> kube-system heapster-74f98f6489-tgtzl 0/1 Pending 0 36m <none> <none> <none> kube-system kube-dns-autoscaler-986c49747-wrvz4 0/1 Pending 0 36m <none> <none> <none> kube-system kubernetes-dashboard-54cb7b5997-sk5pj 0/1 Pending 0 36m <none> <none> <none> kube-system openstack-cloud-controller-manager-dgk64 0/1 CrashLoopBackOff 11 36m <none> kubernetes-cluster1-vulg5fz6hg2n-master-0 <none>
# kubectl -n kube-system logs openstack-cloud-controller-manager-dgk64 Error from server: Get https://kubernetes-cluster1-vulg5fz6hg2n-master-0:10250/containerLogs/kube-s...: dial tcp: lookup kubernetes-cluster1-vulg5fz6hg2n-master-0 on 8.8.8.8:53: no such host
BR
Pawel