MicroK8s on Linux | Hyperscale Compliance

Installation and setup for MicroK8s on Linux distributions.

Ubuntu

Install MicroK8s:
Open a terminal and execute the following command to install MicroK8s:
```
sudo snap install microk8s --classic --channel=1.25
```
1. If Snap is not installed on your system, follow the instructions here to install it.
Join the MicroK8s group:
MicroK8s creates a user group to enable seamless command execution. Add your user to this group and set the correct permissions for the .kube caching directory with:
```
sudo usermod -a -G microk8s $USER
sudo chown -f -R $USER ~/.kube
```
1. Re-login or restart your session to apply the group changes:
  su - $USER
Check MicroK8s status:
Ensure MicroK8s is correctly installed and ready by checking its status:
```
microk8s status --wait-ready
```

Enable add-ons:
Enable essential add-ons for Hyperscale deployment:

microk8s enable hostpath-storage
microk8s enable helm
microk8s enable dns
microk8s enable ingress

Create an alias for kubectl and helm
Facilitate command usage with an alias for microk8s kubectl and microk8s helm

echo "alias kubectl='microk8s kubectl'" >> ~/.bash_aliases
echo "alias helm='microk8s helm'" >> ~/.bash_aliases
source ~/.bash_aliases

For CentOS and Red Hat, the installation process diverges primarily due to the absence of snap by default.

Enable snapd:
First, enable the EPEL repository and install snapd:
```
sudo yum install epel-release
sudo yum install snapd
```
1. Then, start and enable snapd:
  sudo systemctl enable --now snapd.socket
2. For CentOS, you may also need to enable classic snap support by creating a symbolic link:
  sudo ln -s /var/lib/snapd/snap /snap
Install MicroK8s:
With snapd enabled, you can now install MicroK8s using snap:
```
sudo snap install microk8s --classic --channel=1.25
```
Group and permissions:
Follow the same steps as for Ubuntu to add your user to the MicroK8s group and adjust permissions for the .kube directory.
Check status and enable add-ons:
Verify MicroK8s installation and enable the necessary add-ons as outlined in the Ubuntu section.
Alias for kubectland helm
Create and source the alias for kubectl and helm as described for Ubuntu.