add_remove_nodes.md

Adding and removing worker nodes

Note: adding new nodes currently will disturb current nodes in the cluster as ansible-playbook limit option is not supported yet.

Add new node(s)

Modify the inventory with the added new node(s), then run:

ansible-playbook -i inventory.ini playbooks/${PROFILE}.yml -e scale=true

Alternatively, scale variable may accept any of the following values { yes, on, 1, true }, case insensitive

Remove node(s)

With the node(s) being removed still in the inventory, run:

ansible-playbook -i inventory.ini playbooks/remove_node.yml -e node=NODE_NAME

You may pass -e node=NODE_NAME or -e node=NODE_NAME1,NODE_NAME2,...,NODE_NAMEn or -e node=NODES_GROUP_NAME to the playbook to limit the execution to the node(s) being removed.