kopwei kopwei

Preparation

System ubuntu18.04.2 desktop
Internet interface name eth0 with dhcp.

Steps

Disable network-manager:

This is a note for installing SpaceVIM on Ubuntu

I installed SpaceVIM on Ubuntu Bionic today but the file-type icons are shown in strange Chinese characters rather than the correct icons.

Check 1: Terminal Encoding

Set terminal profile encoding to UTF-8

Check 2: VIM Encoding

Set VIM encoding to UTF-8. Check the encoding via following command in VIM

This trying to explain how to enable monitoring on k3s/arm64

Deployments

prometheus-operator-monitoring-operator

coreos-configmap-reload
coreos-prometheus-operator

grafana-cluster-monitoring

nginx

Deploy K3s and Rancher on Raspberry Pi 4 cluster

Today I tried to setup a small Kubernetes cluster on top of 3 Raspberry Pi 4 (4GB Memory). Here is the steps to install the cluster.

Preparation

I have 3 Raspberry Pi 4 stacked with PoE headers and connected to a PoE switch at home. The are connected to Internet through a home router. All Pis are equipped with a 64GB Samsung SDXC card flushed with Ubuntu 20.04 image.

	1) Edit the local .git/config, add the following code:

	[remote "github"]
	fetch = +refs/heads/:refs/remotes/github/
	url = git://github.com/PROJ_NAME


	2) Check remote branches
	git branch -r github

	Pattern Matching
	In pattern matching, you can match from the left or from the right. The operators, along with their functions and examples, are shown below:

	Operator: ${foo#t*is}

	Function: deletes the shortest possible match from the left

	Example:

	$ export foo="this is a test"

	# Install Latest Git on Ubuntu:

	sudo add-apt-repository ppa:git-core/ppa
	sudo apt-get update
	sudo apt-get install git

	Gateway set up

	The following example will focus on the most common gateway setup: an Ubuntu computer with two wired network adapters (eth0 and eth1) hosting ICS to a static internal network configured for the 192.168.0.x subnet.

	For this example, eth0 is used to represent the network card connected to the Internet, and eth1 represents the network card connected to a client PC. You can replace eth0 and eth1 as needed for your situation. Also, any private IP subnet can be used for the internal network IP addresses.

	In summary:

	eth0 = the network adapter with internet (external or WAN).
	eth1 = the network adapter to which a second computer is attached (internal or LAN).

	#!/bin/bash

	set -e
	INTERNET_INF=$1
	SUB_INF=$2

	if [ -z "$INTERNET_INF" ] \|\| [ -z "$SUB_INF" ]; then
	echo "Please enter 2 interfaces' names"
	exit 1
	fi