Install MK8s

gistfile1.txt

#!/bin/sh
set -e
set -o noglob

# Usage:
#   curl ... | ENV_VAR=... sh -
#       or
#   ENV_VAR=... ./install.sh
#
# Environment variables:
#   - MK8S_CHANNEL
#   If set this will set a non-default channel

verify_ubuntu(){
if [ -z "$(uname -a | grep Ubuntu)" ]; then
 echo "could not detect Ubuntu OS"
 exit
fi
}
verify_snap(){
 if ! [ -x "$(command -v snap)" ]
 then
  echo "snap could not be found"
 exit
 fi
}

install(){
 if [ -x "$(command -v microk8s)" ]
 then
  if [ -n "${MK8S_CHANNEL}" ]; then
   sudo snap refresh microk8s --channel="${MK8S_CHANNEL}"
  else
   echo "Microk8s is already installed 🙈"
  fi
 else
  echo "Installing Microk8s 🚀"
  if [ -n "${MK8S_CHANNEL}" ]; then
   sudo snap install microk8s --classic --channel="${MK8S_CHANNEL}"
  else
   sudo snap install microk8s --classic
  fi
 fi
}
{
verify_ubuntu
verify_snap
install
}