=============
prerequisites
=============

kubernetes
^^^^^^^^^^

I am using rke2 for k8s.
Follow the rke2 directions, not these. 
Their directions will be up to date.

Install the server
^^^^^^^^^^^^^^^^^^

.. code-block:: console

   curl -sfL https://get.rke2.io | sh -
   systemctl enable rke2-server
   systemctl start rke2-server

Make sure to setup the environment variables to make things easier:

.. code-block:: console

   export PATH="${PATH}:/var/lib/rancher/rke2/bin:/var/lib/rancher/rke2/bin"
   export KUBECONFIG=/etc/rancher/rke2/rke2.yaml

Install the agents
^^^^^^^^^^^^^^^^^^

.. code-block:: console

   curl -sfL https://get.rke2.io | INSTALL_RKE2_TYPE="agent" sh -
   systemctl enable rke2-agent
   mkdir -p /etc/rancher/rke2/
   vim /etc/rancher/rke2/config.yaml
   systemctl start rke2-agent

Contents of the rke2/config.yaml
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

I'm using the external (instead of the management) IP of the server node.

.. code-block:: console

   server: https://<server>:9345
   token: <token from server node>

Assign role to worker nodes
^^^^^^^^^^^^^^^^^^^^^^^^^^^

Run this from the server node.

.. code-block:: console

   kubectl label node NODE_NAME node-role.kubernetes.io/worker=worker   

Remove a role from a node
^^^^^^^^^^^^^^^^^^^^^^^^^

.. code-block:: console

   kubectl label node NODE_NAME node-role.kubernetes.io/worker-

Get an alpine linux container
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

This will give you a shell prompt to test stuff.

.. code-block:: console

   kubectl run -it --tty --rm debug --image=alpine --restart=Never -- sh