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Kubernetes : Configure Container Node
2015/12/13 |
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Install Kubernetes which is the Orchestration System for Docker Containers.
For example, Configure Kubernetes Cluster with 1 Admon Node and 2 Container Node like follows.
+---------------------+
| [ Admin Node ] |
| dlp.srv.world |
| |
+----------+----------+
|
+----------------------+ | +----------------------+
| [ Node01 ] |10.0.0.51 | 10.0.0.52| [ Node02 ] |
| node01.srv.world +----------+----------+ node02.srv.world |
| | | |
+----------------------+ +----------------------+
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Configure Container Node on this section.
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| [1] | |
| [2] | Install Kubernetes and Flannel on All Nodes. |
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[root@node01 ~]# yum -y install kubernetes flannel
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| [3] | Configure Kubernetes on all Nodes like follows. |
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[root@node01 ~]#
vi /etc/kubernetes/config # line 22: change to Admin Node's hostname or IP address KUBE_MASTER="--master=http:// dlp.srv.world :8080"
[root@node01 ~]#
vi /etc/kubernetes/kubelet # line 5: change KUBELET_ADDRESS="--address= 0.0.0.0 "
# line 11: change to own hostname KUBELET_HOSTNAME="--hostname_override= node01 "
# line 14: change to Admin Node's hostname or IP address KUBELET_API_SERVER="--api_servers=http:// dlp.srv.world :8080"
[root@node01 ~]#
vi /etc/sysconfig/flanneld # line 4: change to Admin Node's hostname or IP address FLANNEL_ETCD="http:// dlp.srv.world :2379"
# stop docker0 interface [root@node01 ~]# nmcli c down docker0 Connection 'docker0' successfully deactivated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1) systemctl start flanneld kube-proxy kubelet [root@node01 ~]# systemctl enable flanneld kube-proxy kubelet [root@node01 ~]# systemctl restart docker |
| [4] | Make sure th settings. It's OK if the status of each node is Ready like follows. |
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[root@dlp ~]# kubectl get nodes NAME LABELS STATUS node01 kubernetes.io/hostname=node01 Ready node02 kubernetes.io/hostname=node02 Ready |