alexnoz

#!bin/bash

table=$1
pattern=$2

if [[ -z "$table" ]] || [[ -z "$pattern" ]]; then
  echo "Usage: $0 <iptables-table-name> <iptables-chain-name-grep-pattern>"
  exit 1
fi

alexnoz

#!/bin/bash

kubeadm reset -f

yum remove -y kube* containerd* docker* nginx cri*

rm -rf /etc/containerd /etc/cni/net.d /home/docker /var/log/nginx /home/cert-deploy /home/containerd /etc/ansible-iptables

iptables-save | awk '/^[*]/ { print $1 } 
                     /^:[A-Z]+ [^-]/ { print $1 " ACCEPT" ; }

alexnoz

#include <iostream>
#include <vector>
#include <array>
#include <climits> // INT_MAX

using namespace std;

struct Node {
  int p = -1;
  int d = INT_MAX;

alexnoz

function debounceFetch (fn, delay, onCancel = () => {}) {
  let timer = 0, isFetching = false
  
  return function (...args) {
    clearTimeout(timer)
    
    if (isFetching) {
      onCancel()
      isFetching = false
    }

alexnoz

Config

Set a setting (log rotation)

./bin/kafka-configs.sh --zookeeper zookeeper1:2181/kafka \
--alter --entity-type topics \
--entity-name test \
--add-config segment.ms=60000

alexnoz

const getImage = url => (
  new Promise((resolve, reject) => {
    const image = new Image()
    
    image.onload = e => {
      resolve(image)
    }

    image.onerror = e => {
      reject(Error("Network Error"))

alexnoz

<style>
.text {
  position: relative;
}
.text.type-finished::before {
  animation: .5s steps(2, jump-none) 0s infinite alternate pulse;
}
.text::before {
  content: '';
  height: 1em;

alexnoz

#include <iostream>
#include <stack>
#include <iomanip>
#include <map>
#include <cctype>
#include <cstdlib>

using namespace std;

#define SIZE(arr) (sizeof(arr) / sizeof((arr[0])))

alexnoz

macro_rules! postfix {
    // Terminating rule
    (() -> ($res:expr)) => {$res};

    // Addition
    ((+ $($rest:tt)*) -> ($a:tt $b:tt $($stack:tt)*)) => {
        postfix!(($($rest)*) -> (($b + $a) $($stack)*))
    };
    
    // Subtraction

alexnoz

# TYPE  DATABASE        USER            ADDRESS                 METHOD

# "local" is for Unix domain socket connections only
local   all             all                                     password
# IPv4 local connections:
host    all             all             127.0.0.1/32            password
# IPv6 local connections:
host    all             all             ::1/128                 ident
# Allow replication connections from localhost, by a user with the
# replication privilege.