michelesr

#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdint.h>
#include <errno.h>

int main(int argc, char *argv[]) {
	FILE *file = stdin;  /* file to read, default to stdin */
	char text[17];       /* text representation of the 16 bytes line */
	int n;               /* number of bytes read in the line */

michelesr

# NOTES
# minikube is used as internal domain for ingress, feel free to change it
# it's just to make it work with apps that were using that domain in minikube
# but it could be anything really

echo 'Installing colima'
brew install colima

echo 'Starting VM'
colima start --cpu=8 --memory=8 --disk=100 --vm-type vz --kubernetes --network-address

michelesr

(define (true a b) a)
(define (false a b) b)
(define (not b) (b false true))
(define (and a b) (a b false))
(define (or a b) (a true b))

(define zero (lambda (f) (lambda (x) x)))
(define one (lambda (f) (lambda (x) (f x))))
(define two (lambda (f) (lambda (x) (f (f x)))))
(define three (lambda (f) (lambda (x) (f (f (f x))))))

michelesr

# Boolean logic
def true(a, _):
    return a

def false(_, b):
    return b

def not_f(b):
    return b(false, true)

michelesr

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <sys/epoll.h>

#define BUFFER_SIZE 256

michelesr

#!/bin/bash
set -ex

CONTROLLER_BUS_ID=0000:00:01.0
DEVICE_BUS_ID=0000:01:00.0

sudo tee /sys/bus/pci/devices/${CONTROLLER_BUS_ID}/power/control <<<on
sleep 1

sudo tee /sys/bus/pci/rescan <<<1

michelesr

#!/bin/bash
set -ex

CONTROLLER_BUS_ID=0000:00:01.0
DEVICE_BUS_ID=0000:01:00.0

if sudo lsof /dev/nvidia0 ; then
  echo 'Some processes are still using the card, aborting.'
  exit 1
fi

michelesr

#!/bin/bash
# Use the temporary credentials from the MFA profile to update the
# registry-creds plugin credentials used to pull images from AWS Elastic
# Container Registry
#
# NOTE: the script won't request fresh credentials, make sure your credentials
# are not expired before running this script

# retrieve the profile from the credentials file
content=$(grep -F -A 5 '[mfa]' < ~/.aws/credentials)

michelesr

#!/usr/bin/env bash
set -eux

# used to process output with awk
export AWS_DEFAULT_OUTPUT=text

disable_cluster_autoscaler() {
  # delete the tag from the autoscaling group
  aws autoscaling delete-tags \
    --tags ResourceId=$1,ResourceType=auto-scaling-group,Key=k8s.io/cluster-autoscaler/enabled

michelesr

#!/usr/bin/env ruby
require "json"
require "aws-sdk-ec2"

# Usage: bundle exec ruby find-orphan-pods.rb <cluster-name>
# NOTE: make user to point kubectl to the right context!
#
# Returns a list of pods which aren't using an attached ENI and so don't have
# network connectivity