This manual is about setting up an automatic deploy workflow using nodejs, PM2, nginx and GitLab CI. It is tested on:
- Target server: Ubuntu 16.04 x64. This is suitable for Ubuntu 14.x.
- Windows 10 on my PC to work.
import React, { useEffect, useCallback, useState, useMemo } from 'react'; | |
import t from 'prop-types'; | |
import clsx from 'clsx'; | |
import { makeStyles } from '@material-ui/core/styles'; | |
import Box from '@material-ui/core/Box'; | |
import Slider from '@material-ui/core/Slider'; | |
const useStyles = makeStyles(theme => ({ | |
sliderWrapper: {}, | |
sliderLabel: { |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent
Branch A has commits (X,Y) that also need to be in Branch B. The cherry-pick operations should be done in the same chronological order that the commits appear in Branch A.
cherry-pick
does support a range of commits, but if you have merge commits in that range, it gets really complicated
git checkout branch-B
git cherry-pick X
git cherry-pick Y
#!/bin/bash | |
mkdir -p ~/.ssh | |
# generate new personal ed25519 ssh keys | |
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_ed25519 -C "rob thijssen <[email protected]>" | |
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_robtn -C "rob thijssen <[email protected]>" | |
# generate new host cert authority (host_ca) ed25519 ssh key | |
# used for signing host keys and creating host certs |
A lot of times you are developing a web application on your own laptop or home computer and would like to demo it to the public. Most of those times you are behind a router/firewall and you don't have a public IP address. Instead of configuring routers (often not possible), this solution gives you a public URL that's reverse tunnelled via ssh to your laptop.
Because of the relaxation of the sshd setup, it's best used on a dedicated virtual machine just for this (an Amazon micro instance for example).