toddlers

Quick and dirty query to find recent events indicating an unhealthy cluster (good one to run after maintenance):

kubectl get events -A --sort-by=.lastTimestamp | grep -iE 'preempt|evict|kill|fail|unhealthy|backoff'

And here's a kind of elaborate one to get actual CPU/memory usage vs requests/limits for right-sizing:

toddlers

// https://xeiaso.net/blog/go-servemux-slash-2021-11-04/

package main

import (
	"fmt"
	"io"
	"net/http"
	"net/http/httptest"
	"strings"

toddlers

#================================================CKA EXAM CHEATSHEET KUBECTL==============================================#
commands for manage cluster, troubleshooting, debug etc...


#=========================================================================================================================#

useful resources: https://github.com/ascode-com/wiki/tree/main/certified-kubernetes-administrator

alias ll='ls -l'
alias kcr='kubectl create'

toddlers

use std::fmt::Display;

trait Pipe:Sized {
    fn pipe<F,R>(self, f:F) -> R
    where
        F: FnOnce(Self) -> R;
    fn pipe_ref<F,R>(&self, f:F) -> R
    where
        F: FnOnce(&Self) -> R;
    fn pipe_mut<'a, F,R>(&'a mut self, f:F) -> R

toddlers

"""
A micro event loop library implementation from scratch.

This library provides a minimal but feature-complete asynchronous event loop
implementation for educational purposes. It demonstrates the core concepts of
asynchronous programming including:

- Task scheduling and management
- I/O multiplexing with non-blocking sockets
- Timeouts and sleep functionality

toddlers

#!/usr/bin/env python

import json, sys
from urllib.request import urlopen


def green(str):  return f'\033[92m{str}\033[0m'
def orange(str): return f'\033[38;5;214m{str}\033[0m'
def red(str):    return f'\033[91m{str}\033[0m'
def yellow(str): return f'\033[93m{str}\033[0m'

toddlers

[package]
name = "s3_presign"
version = "0.1.0"
edition = "2021"

# Starting in Rust 1.62 you can use `cargo add` to add dependencies
# to your project.
#
# If you're using an older Rust version,
# download cargo-edit(https://github.com/killercup/cargo-edit#installation)

toddlers

*.tfbackup
.terraform/
*.tfstate
.terraform.tfstate.lock.info

toddlers

#!/usr/bin/env bash

set -eu  # do not proceed on error

if [ $# -lt 1 ] || [ "$1" = "--help" ] || [ "$1" = "-h" ];  then
cat <<EOF
Quick command to get a shell inside a running docker container.

Usage: dexec [container_name] [command]

toddlers

#include <stdio.h>
#include <time.h>

int main(int argc, char **argv)
{

  int result;
  struct timespec tp;
  clockid_t clk_id;