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@simpsoka
simpsoka / Leadership-CI.md
Last active December 20, 2023 15:40
This is a list of questions to check our decision making.

Do I want to die on this hill?

  • Pass: This is morally good and if not handled has long term consequences
  • Fail: This if self serving

Am I including everyone?

  • Pass: My ego is not driving this conversation
  • Fail: The people in this conversation will only tell me I'm right and not push back
@kevin-smets
kevin-smets / 1_kubernetes_on_macOS.md
Last active May 5, 2024 10:12
Local Kubernetes setup on macOS with minikube on VirtualBox and local Docker registry

Requirements

Minikube requires that VT-x/AMD-v virtualization is enabled in BIOS. To check that this is enabled on OSX / macOS run:

sysctl -a | grep machdep.cpu.features | grep VMX

If there's output, you're good!

Prerequisites

#!/bin/bash
# Shamelessly stolen from https://gist.github.com/eduardocardoso/82a629882ddb02ab3677
set -o errexit
echo "Removing exited docker containers..."
docker ps -a -f status=exited -q | xargs -r docker rm -v
echo "Removing untagged images..."
docker images --no-trunc | grep "<none>" | awk '{print $3}' | xargs -r docker rmi
@eduardocardoso
eduardocardoso / gist:82a629882ddb02ab3677
Last active April 3, 2023 08:23
Script to delete exited containers and untagged/unused images from docker
#!/bin/bash
set -o errexit
echo "Removing exited docker containers..."
docker ps -a -f status=exited -q | xargs -r docker rm -v
echo "Removing dangling images..."
docker images --no-trunc -q -f dangling=true | xargs -r docker rmi
@jsfaint
jsfaint / sys_proxy
Last active April 13, 2020 01:26
Set System Proxy for OS X
#!/bin/bash
wifi="Wi-Fi"
IP=127.0.0.1
PORT=7777
[[ $# -ne 1 ]] && echo "$0 http|pac|disable" && exit 1
flag=$1
function webproxy_set() {
@trcarden
trcarden / gist:3295935
Created August 8, 2012 15:28
Rails 3.2.7 SSL Localhost (no red warnings, no apache config)
# SSL self signed localhost for rails start to finish, no red warnings.
# 1) Create your private key (any password will do, we remove it below)
$ openssl genrsa -des3 -out server.orig.key 2048
# 2) Remove the password
$ openssl rsa -in server.orig.key -out server.key
@jboner
jboner / latency.txt
Last active June 29, 2024 19:54
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD