Add node

Expand available capacity and performance by adding new nodes to a cluster.

Install the Storidge software and dependencies on the new node with:

curl -fsSL ftp://download.storidge.com/pub/ce/cio-ce | sudo bash

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The installation requires access to system devices so sudo access or root user is needed

Install the Kubernetes components (kubelet, kubeadm, kubectl, kubernetes-cni) on the worker node if not already installed.

Adding a new node just takes two steps:

1. Add new node to Storidge cluster
2. Add new node to Kubernetes

Add to Storidge cluster

Running cioctl join-token generates a token to add a new node to an existing Storidge cluster. Copy the cioctl node add ... command string generated, and run on the new node.

Example:

root@sds:~# cioctl join-token
    cioctl node add 192.168.3.122 909ab2a6afad21f26369c00a8ba7307e-076f50d0

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The creation of new join tokens is disabled when there are on-going node operations, e.g. cordon, uncordon or removing a node from cluster.

Wait, then re-run the join-token command when the node operation is completed.

Add to Kubernetes

After the new node is added to Storidge cluster, join node to Kubernetes control plane so pods can be scheduled.

Run kubeadm token create --print-join-command on a master node. Copy the kubeadm join ... command string, and run on the new node.

Example:

root@master:~/examples# kubeadm token create --print-join-command
kubeadm join 192.168.3.21:6443 --token d7817i.flcq83smoad7npnd --discovery-token-ca-cert-hash sha256:d748737fa0b8f5f9145381cb681f5fbc41a1860ecd805e77cdce93acd92e07f2