brennovich

Keybase proof

I hereby claim:

• I am brennovich on github.
• I am brennovich (https://keybase.io/brennovich) on keybase.
• I have a public key whose fingerprint is E6C7 B01C C850 A7D9 9EB0 969E 21DA 987A 821E 84FB

To claim this, I am signing this object:

brennovich

We conceptualize risk as a continuum

• https://landing.google.com/sre/sre-book/chapters/availability-table/#appendix_table-of-nines

Which is worse for the service: a constant low rate of failures, or an occasional full-site outage? Both types of failure may result in the same absolute number of errors, but may have vastly different impacts on the business.

---

Software fault tolerance

brennovich

#!/bin/bash

# Works for /16 CIDR Blocks, change / upgrade the script if you need
CIDR_PREFIX="172.20"

for oct1 in {128..255}; do
  # Generate a new list of used IPs on every block
  calicoctl get wep --all-namespaces | awk '{print $4}' |cut -d "/" -f1 > valid_ips.txt
  for oct2 in {1..254}; do
    if grep "${CIDR_BLOCK}.$oct1.$oct2" ./valid_ips.txt; then

brennovich

• Make sure you are aware of the problem/feature.
• Don't be rude, be polite.
• Give suggestions and make clear why do you think you suggestion is better than the current approach.
• Don't point out just the bad things, tell about what do you think is great as well.
• Make it part of your daily workflow. (use github notifications)
• http://www.dein.fr/2015-02-18-maslows-pyramid-of-code-review.html

brennovich

#!/bin/bash
#
# Simple wrapper of Redis' SCAN command. It can control batch size, patterns and cursors.

if [ $# -ne 3 ]
then
  echo "Find matching a pattern using SCAN "
  echo "Usage: $0 <host> <port> <pattern>"
  exit 1
fi

brennovich

require 'date'
require 'json'
require 'net/http'

# non-stdlib dependencies
require 'signet/oauth_2/client'

# First we need to fetch our access token
pkc12_key = File.read('./legato-development-8b36edf27344.p12')

brennovich

ArchLinux on MacBook Retina 13"

Info

Resources

• cgdisk Walktrough
• ArchLinux Installation Guide
• ArchLinux MacBook Retina
• Puppet for MacBook Retina

brennovich

Section "InputClass"
        Identifier "libinput"
        Driver "libinput"
        MatchDevicePath "/dev/input/event*"
EndSection

brennovich

# i3status configuration file.
# see "man i3status" for documentation.

# It is important that this file is edited as UTF-8.
# The following line should contain a sharp s:
# ß
# If the above line is not correctly displayed, fix your editor first!

general {
        output_format = "i3bar"

brennovich

function! SelectaCommand(choice_command, selecta_args, vim_command)
  let dict = { 'buf': bufnr('%'), 'vim_command': a:vim_command, 'temps': { 'result': tempname() }, 'name': 'SelectaCommand' }

  function! dict.on_exit(id, code)
    bd!

    if a:code != 0
      return 1
    endif