Kubernetes Cookbook - Second Edition

Getting ready

We will provide instructions of two types of OS:

• Ubuntu Xenial 16.04 (LTS)
• CentOS 7.4

Make sure the OS version is matched before continuing. Furthermore, the software dependency and network settings should be also verified before you proceed to thecd cd next step. Check the following items to prepare the environment:

• Every node has a unique MAC address and product UUID: Some plugins use the MAC address or product UUID as a unique machine ID to identify nodes (for example, kube-dns). If they are duplicated in the cluster, kubeadm may not work while starting the plugin:

// check MAC address of your NIC$ ifconfig -a// check the product UUID on your host$ sudo cat /sys/class/dmi/id/product_uuid

• Every node has a different hostname ...