This wiki describes how to set up a Kubernetes cluster with kuberadm, and then deploying SDN-C within that Kubernetes cluster.
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# On the k8s-master vm setup the kubernetes master node. # The "sudo -i" changes user to root. sudo -i # There is no kubernetes app running. ps -ef | grep -i kube | grep -v grep # Pick one DNS add-on: either "kube-dns" or "CoreDNS". If your environment setup is for "Kubernetes federation" or "SDN-C Geographic Redundancy" then use "CoreDNS" addon. # Note that kubeadm version 1.8.x does not have support for coredns feature gate. # Upgrade kubeadm to latest version before running below command: # With "CoreDNS" addon (recommended) kubeadm init --feature-gates=CoreDNS=true | tee ~/kubeadm_init.log # with kube-dns addon kubeadm init | tee ~/kubeadm_init.log # Verify many kubernetes app running (kubelet, kube-scheduler, etcd, kube-apiserver, kube-proxy) ps -ef | grep -i kube | grep -v grepkube-controller-manager # The "exit" reverts user back to ubuntu. exit |
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decrease sdnc pods to 1 $ kubectl scale statefulset sdnc -n onap-sdnc --replicas=1 statefulset "sdnc" scaled # verify ..2 sdnc pods will terminate $ kubectl get pods --all-namespaces -a | grep sdnc onap-sdnc nfs-provisioner-5fb9fcb48f-cj8hm 1/1 Running 0 21h onap-sdnc sdnc-0 2/2 Running 0 2h onap-sdnc sdnc-1 0/2 Terminating 0 40m onap-sdnc sdnc-2 0/2 Terminating 0 15m increase sdnc pods to 5 $ kubectl scale statefulset sdnc -n onap-sdnc --replicas=5 statefulset "sdnc" scaled increase db pods to 4 $kubectl scale statefulset sdnc-dbhost -n onap-sdnc --replicas=5 statefulset "sdnc-dbhost" scaled $ kubectl get pods --all-namespaces -o wide | grep onap-sdnc onap-sdnc nfs-provisioner-7fd7b4c6b7-d6k5t 1/1 Running 0 13h 10.42.0.149 sdnc-k8s onap-sdnc sdnc-0 2/2 Running 0 13h 10.42.134.186 sdnc-k8s onap-sdnc sdnc-1 2/2 Running 0 13h 10.42.186.72 sdnc-k8s onap-sdnc sdnc-2 2/2 Running 0 13h 10.42.51.86 sdnc-k8s onap-sdnc sdnc-dbhost-0 2/2 Running 0 13h 10.42.190.88 sdnc-k8s onap-sdnc sdnc-dbhost-1 2/2 Running 0 12h 10.42.213.221 sdnc-k8s onap-sdnc sdnc-dbhost-2 2/2 Running 0 5m 10.42.63.197 sdnc-k8s onap-sdnc sdnc-dbhost-3 2/2 Running 0 5m 10.42.199.38 sdnc-k8s onap-sdnc sdnc-dbhost-4 2/2 Running 0 4m 10.42.148.85 sdnc-k8s onap-sdnc sdnc-dgbuilder-6ff8d94857-hl92x 1/1 Running 0 13h 10.42.255.132 sdnc-k8s onap-sdnc sdnc-portal-0 1/1 Running 0 13h 10.42.141.70 sdnc-k8s onap-sdnc sdnc-portal-1 1/1 Running 0 13h 10.42.60.71 sdnc-k8s onap-sdnc sdnc-portal-2 |
sudo ntpdate -s 10.247.5.11