mofelee

parallels Packer (arm64)

A simple Packer + Vagrant install of Ubuntu 20.04 (Focal Fossa) LTS server for arm64, to run from my M1 Mac on Parallels Pro (17.1). Currently on MacOS Monterey.

Packer will run the ansible playbook.yml before the machine is shutdown and exported.

The installation is automated by cloud-init (which reads user-data). The file meta-data just needs to be an empty text file (you need to create this - no blank files or folders allowed in gists).

ubuntu2004/

mofelee

Network Monitoring Tools

• Monit
• Ganglia
• Munin
• Cacti
• Nagios
• Zabbix
• Observium
• Zenoss
• Collectd

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GDB commands by function - simple guide
---------------------------------------
More important commands have a (*) by them.

Startup 
% gdb -help         	print startup help, show switches
*% gdb object      	normal debug 
*% gdb object core 	core debug (must specify core file)
%% gdb object pid  	attach to running process
% gdb        		use file command to load object 

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Quick examples

• feat: new feature
• fix(scope): bug in scope
• feat!: breaking change / feat(scope)!: rework API
• chore(deps): update dependencies

Commit types

• build: Changes that affect the build system or external dependencies (example scopes: gulp, broccoli, npm)
• ci: Changes to CI configuration files and scripts (example scopes: Travis, Circle, BrowserStack, SauceLabs)
• chore: Changes which doesn't change source code or tests e.g. changes to the build process, auxiliary tools, libraries

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{
  "variables": {
    "fruit": "banana",
    "vegetable": "carrot"
  },
  "rerun" : 1,
  "items": [
    {
      "uid": "desktop",
      "type": "file",

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# Usage:    IE={box} vagrant up
#
# Eg.       IE=XPIE6 vagrant up

boxes = {
    "XPIE6"     => "http://aka.ms/vagrant-xp-ie6",
    "XPIE8"     => "http://aka.ms/vagrant-xp-ie8",
    "VistaIE7"  => "http://aka.ms/vagrant-vista-ie7",
    "Win7IE8"   => "http://aka.ms/vagrant-win7-ie8",
    "Win7IE9"   => "http://aka.ms/vagrant-win7-ie9",

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package main

import (
	"encoding/json"
	"log"
	"os"

	// We use pretty instead of the common go-spew or pretty-printing because,
	// go-spew is vendored in client-go and causes problems
	"github.com/kr/pretty"

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#!/bin/sh

# update kernel
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc1/linux-image-4.10.0-041000rc1-generic_4.10.0-041000rc1.201612252031_amd64.deb
dpkg -i linux-image-4.10.0*.deb
update-grub
reboot

# check kernel
uname -a

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映射scope服务到本地

kubectl port-forward -n kube-system "$(kubectl get -n kube-system pod --selector=weave-scope-component=app -o jsonpath='{.items..metadata.name}')" 4040

部署

kubectl run kubernetes-bootcamp --image=docker.io/jocatalin/kubernetes-bootcamp:v1 --port=8080

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-- Lua Cheat Sheet for Programmers, by Al Sweigart http://coffeeghost.net
-- This cheat sheet is an executable Lua program.
--[[ This is
a multline comment]]

---[[ This is a neat trick. The first -- makes -[[ not a multiline comment.
print("This line executes.")
--]] The rest of this line is also a comment.

print("Here is a string" .. ' concatenated with ' .. 2 .. ' other strings.')