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Install it as follows from the Github:

sudo apt install build-essential extlinux wimtools syslinux libc-bin jq

curl -L https://git.io/bootiso -O

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# This is the network config written by 'subiquity'
network:
  bonds:
    bond0:
      interfaces:
      - enx0050b6fdfb89
      - enp2s0
  ethernets:
    enx0050b6fdfb89: {}
    enp2s0: {}

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Remove empty line from file

sed -i '/^\s*$/d' data.txt

OR

sed -i '/^$/d' textfile

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Method 1 - Disable IPv6 using GRUB

Configure GRUB to pass kernel parameters at boot time. You’ll have to edit /etc/default/grub. Once again, make sure you have administrator privileges:

sudo nano /etc/default/grub

Now you need to modify GRUB_CMDLINE_LINUX_DEFAULT and GRUB_CMDLINE_LINUX to disable IPv6 on boot:

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#!/usr/bin/env bash

# Error Handling
set -o errexit; set -o pipefail; set -o nounset;

# Grab exit code
# cat /tmp/doesnotexist && rc=$? || rc=$?                                         
# echo exitcode: $rc        
# cat /dev/null && rc=$? || rc=$?                                                 
# echo exitcode: $rc

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# This is the network config written by 'subiquity'
# nano /etc/netplan/*.yaml
network:
  bonds:
    bond0:
      interfaces:
        - enx0050b6fdfb89
        - enp2s0
  ethernets:
    enx0050b6fdfb89: {}

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echo -n 'username' | base64

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kubectl commands

kubectl get all

kubectl get nodes

kubectl get pod

kubectl get services

kubectl create deployment nginx-depl --image=nginx

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#cloud-config

# |- Set timezone 
timezone: Europe/Berlin

# |- Update /etc/hosts
manage_etc_hosts: true

# |- Update hostname and fqdn
hostname: ubuntu-cloud

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ethernets:
  ens3:
    addresses:
    - 192.168.0.75/24
    gateway4: 192.168.0.1
    nameservers:
      addresses:
      - 1.1.1.1
      - 8.8.8.8
version: 2