peterwwillis

#!/bin/bash

# Prune local orphan refs
git prune -v

# Deletes all stale (local) remote-tracking branches under origin.
# These stale branches have already been removed from the remote repository
# referenced by <name>, but are still locally available.
git remote prune origin

peterwwillis

,Linode,DigitalOcean,UpCloud,OVHCloud,Vultr,IBMCloud,Wasabi,Backblaze,AWS S3,Azure,GoogleCloud,Rackspace
Prices,https://www.linode.com/products/object-storage/,https://www.digitalocean.com/pricing/#spaces-object-storage,,https://www.ovhcloud.com/asia/public-cloud/prices/#439,https://www.vultr.com/products/object-storage/#pricing,https://cloud.ibm.com/objectstorage/create#pricing,https://wasabi.com/cloud-storage-pricing/pricing-faqs/,https://www.backblaze.com/b2/cloud-storage-pricing.html,,,,https://www.rackspace.com/openstack/public/pricing
,,,,,,,,,,,,
TrafficIncoming,included,included,,included,included,,included,,,,,
TrafficOutgoing,1TB + 0.01 per GB,1TB + 0.01 per GB,,$11 per 1 TB,1 TB + 0.01 per GB,$90 per 1 TB,included if not exceeding storage amount,$10 per 1 TB,$90 per 1 TB,$87 per 1 TB,$120 per 1 TB,$120 per 1 TB
StoragePricePerMonth,$20 per 1 TB,$20 per 1 TB,,$10 per 1 TB,$20 per 1 TB,$22.7 per 1 TB,$6 per 1 TB,$5 per 1 TB,$21 per 1 TB,$18 per 1 TB,$20 per 1 TB,$100 per 1 TB
,,,,,,,,,,,,
ArchiveTraf

peterwwillis

Log Files

Nodes

Control Plane log files

• /var/log/kube-apiserver.log - API Server, responsible for serving the API
• /var/log/kube-scheduler.log - Scheduler, responsible for making scheduling decisions
• /var/log/kube-controller-manager.log - a component that runs most Kubernetes built-in controllers, with the notable exception of scheduling (the kube-scheduler handles scheduling).

Worker Node log files

peterwwillis

GitHub's highlights of new Git releases

Git 2.3 has been released

• Push to deploy
• Faster cloning by borrowing objects from existing clones
• More conservative default behavior for git push
• More flexible ssh invocation
• The credential subsystem is now friendlier to scripting
• Other
• **[Additional resources](https:/

peterwwillis

[user]
    ; NOTE: Replace your name, email, and signing ssh public key here.
    name = My Git User Name Here
    email = MYGITEMAIL@ADDRESS.HERE
    signingkey = MYLONGSSHPUBKEYHERE

; NOTE: Uncomment this if you want to set a default credential store for Git.
;       On Linux, "secretservice" is the libsecret (aka keyring) method.
;[credential]
;    credentialStore = secretservice

peterwwillis

Set up Ubuntu Linux to use Active Directory for user authentication + authorization

This guide will step you through setting up an Ubuntu 18.04 Linux system so that you can login to it using an Active Directory server for authentication and authorization. NOTE: You do not need to join a domain to use this method!!

The net effect of this guide is that you do not need to ever set up a user on your Linux host. Its home directory will be automatically created at log-in time, and its password is checked (along with account expiration) against the Active Directory server.

peterwwillis

Package Management is Inherently Dumb

All packaged software is just a random person trying to guess at how to install and run some random software. The package has to declare what packages it depends on, and what it conflicts with.

The only way for a package to have the correct 'depends' and 'conflicts' is for the original software to ship with an explicit map of all its dependencies and conflicts. No software does this, in part because every Linux distribution ships different packages, and thus has different dependencies and conflicts. And so, we have to build packages by hand. A human (who isn't the software developer) has to determine the correct dependencies and conflicts (based on other packages that this human also did not create). Then they need to build the package and test it.

A package manager (dpkg) is a dumb program that does whatever you tell it to do. A package encodes its own dependencies, and the package manager fulfills the requirements as stated, or fails if it's impossible. There's n

peterwwillis

#!/bin/sh
# defaultenv.sh - Load environment variable defaults and run programs

set -e
[ x"$DEBUG" = "x1" ] && set -x

_load_envrc () {
    local file="$1"; shift
    if [ -r "$file" ] ; then
        # Bourne shell limits how we can test and set env vars, so here I'm

peterwwillis

#!/usr/bin/env sh
# cliv - Execute commands using a specific .env and directory
set -eu

_err () { printf "%s\n" "$0: Error: $*" ; exit 1 ; }

HOME="${HOME:-$(getent passwd $(id -u) | cut -d : -f 6)}"
[ -d "$HOME/.cliv" ] || mkdir -p "$HOME/.cliv"

if [ $# -lt 1 ] || [ "$1" = "-h" ] ; then

peterwwillis

The difference between configuration formats, configuration languages, data formats, and programming languages

There is a lot of confusion out there about what different file formats are and how they are intended to be used. Having used a lot of them over the years, I think I can explain their differences, and when and how to use them.

Data formats

A data format is a file format for encoding data. Typically the format is structured to make it easier for machine interpreting & processing.