kevinelliott

To support my open-source work, consider adding me on Patreon.

macOS 10.15 Catalina Mostly-Automated Setup

An easy to refer to document for regularly setting up macOS 10.15 Catalina.

Controversy

The topic of recipe-based frequent fresh reinstalls of macOS is a controversial issue. Some people are against reinstalling macOS, citing that they have never had an issue with Apple provided upgrade installs.

u1i

#!/usr/bin/env bash

# install docker
# https://docs.docker.com/engine/installation/linux/ubuntulinux/

# install docker-compose
# https://docs.docker.com/compose/install/

# install letsencrypt
# https://www.digitalocean.com/community/tutorials/how-to-secure-nginx-with-let-s-encrypt-on-ubuntu-16-04

luckydev

# maximum capability of system
user@ubuntu:~$ cat /proc/sys/fs/file-max
708444

# available limit
user@ubuntu:~$ ulimit -n
1024

# To increase the available limit to say 200000
user@ubuntu:~$ sudo vim /etc/sysctl.conf

ramboldio

#!/bin/bash

# this folder needs to exist
mkdir ~/certs

# authenticate yourself (requires that nothing runs on ports 443 and 80)
docker run --rm -it -v ~/certs:/etc/letsencrypt -p 443:443 certbot/certbot certonly --authenticator standalone

# renewal
docker run --rm -it -v ~/certs:/etc/letsencrypt certbot/certbot renew

calvinh8

MongoDB AWS EC2 Setup Guide

You can see my latest update in my blog here https://medium.com/@calvin.hsieh/steps-to-install-mongodb-on-aws-ec2-instance-62db66981218

Credits:

• https://eladnava.com/deploy-a-highly-available-mongodb-replica-set-on-aws/
• http://www.serverlab.ca/tutorials/linux/database-servers/how-to-create-mongodb-replication-clusters/

Big thanks to Elad Nava and Shane Rainville for writing the above articles that allow me to conduct this guide. If by all means that I violated original post's copyright, please contact me.

vlucas

'use strict';

const crypto = require('crypto');

const ENCRYPTION_KEY = process.env.ENCRYPTION_KEY; // Must be 256 bits (32 characters)
const IV_LENGTH = 16; // For AES, this is always 16

function encrypt(text) {
 let iv = crypto.randomBytes(IV_LENGTH);
 let cipher = crypto.createCipheriv('aes-256-cbc', Buffer.from(ENCRYPTION_KEY), iv);

app.dockerfile

FROM php:7.0.4-fpm

RUN apt-get update && apt-get install -y libmcrypt-dev \
    mysql-client libmagickwand-dev --no-install-recommends \
    && pecl install imagick \
    && docker-php-ext-enable imagick \
    && docker-php-ext-install mcrypt pdo_mysql

rasmuskl

function autobind<TFunction extends Function>(constructor: TFunction):TFunction {
    const newConstructor = function(...args) {
        constructor.apply(this, args);
        for (const property in this) {
            if (typeof this[property] !== typeof Function) {
                continue;
            }

            this[property] = this[property].bind(this);
        }

matthewflanneryaustralia

cat > /tmp/subscript.sh << EOF
# START UBUNTU USERSPACE

echo "Setting up NodeJS Environment"
curl https://raw.githubusercontent.com/creationix/nvm/v0.25.0/install.sh | bash

echo 'export NVM_DIR="/home/ubuntu/.nvm"' >> /home/ubuntu/.bashrc
echo '[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"  # This loads nvm' >> /home/ubuntu/.bashrc

# Dot source the files to ensure that variables are available within the current shell

maxivak

Monitoring of Docker containers with systemd

Service

• create service file /etc/systemd/system/docker_redis.service

[Unit]