sovietspy2

#!/bin/bash

# Define the name for the virtual environment
venv_name="venv"

# Check if the virtual environment already exists
if [ -d "$venv_name" ]; then
    echo "Activating existing virtual environment..."
    source "$venv_name/bin/activate"
else

sovietspy2

package org.example.inheritance;


import java.lang.reflect.Field;

public class Main2 {

    public static void main(String[] args) {

        Child child = new Child();

sovietspy2

AWS

VPC

define network

Subnet

• by defautl every subnet is private
• add NAT to public subnet
• attach IGW to public subnet
• enable auto elastic ip assignment for public subnet

sovietspy2

    Map<Integer,Integer> map = new HashMap<Integer,Integer>();
        
        for (Integer i : arr) {
            // MAP COMPUTE  EXAMPLE
            map.compute(i, (key,val) -> {
               if (val==null) {
                   return 0;
               }  else {
                   return val+1;
               }

sovietspy2

version: '2'

services:
  zookeeper:
    image: wurstmeister/zookeeper
    ports:
      - "2181:2181"
  kafka:
    image: wurstmeister/kafka
    ports:

sovietspy2

nginx -V 2>&1 | tr ' ' '\n'

sovietspy2

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
    <Appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout
                    pattern="%style{%d{ISO8601}}{black} %highlight{%-5level }[%style{%t}{bright,blue}] %style{%C{1.}}{bright,yellow}: %msg%n%throwable" />
        </Console>

        <RollingFile name="RollingFile"
                     fileName="./logs/spring-boot-logger-log4j2.log"

sovietspy2

# pull the official mongo docker container
docker pull mongo

# create network
docker network create my-mongo-cluster

# create mongos
docker run -d --net my-mongo-cluster -p 27017:27017 --name mongo1 mongo mongod --replSet my-mongo-set --port 27017
docker run -d --net my-mongo-cluster -p 27018:27018 --name mongo2 mongo mongod --replSet my-mongo-set --port 27018
docker run -d --net my-mongo-cluster -p 27019:27019 --name mongo3 mongo mongod --replSet my-mongo-set --port 27019

sovietspy2

const { MongoClient } = require('mongodb');

// CRUD operations in transactions must be on existing collections, so be sure you have run
// usersCollection.js prior to running this script. 

async function main() {
    /**
     * Connection URI. Update <username>, <password>, and <your-cluster-url> to reflect your cluster.
     * See http://bit.ly/NodeDocs_lauren for more details
     */

sovietspy2

const { createReadStream } = require("fs");

async function run() {
  const stream =  createReadStream("./test.txt",{ highWaterMark: 4 });

console.log("start")
  for await (let chunk of stream) {
    console.log(chunk.toString('utf-8'));
  }
  console.log("done")