Eric Guo's blog.cloud-mes.com

Hoping writing JS, Ruby & Rails and Go article, but fallback to DevOps note

Deploy Homeland Forum Rails App on Rocky Linux 8

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Install htop and atop

Install htop and atop
sudo dnf update

sudo dnf install epel-release

sudo dnf install htop

sudo dnf install atop

Install nginx

Install nginx
sudo dnf install nginx

Install node.js v18

Using nodesource distribution

Install node.js v18
curl -fsSL https://rpm.nodesource.com/setup_18.x | bash -

dnf install -y nodejs

yum install gcc-c++ make

curl -sL https://dl.yarnpkg.com/rpm/yarn.repo | sudo tee /etc/yum.repos.d/yarn.repo

yum install yarn

Install postgresql

Following DO manual

Install postgresql
dnf module list postgresql

sudo dnf module enable postgresql:13

sudo dnf install postgresql-server

sudo dnf install postgresql-devel

sudo postgresql-setup --initdb

sudo systemctl start postgresql

sudo systemctl enable postgresql

sudo -i -u postgres

psql

Install postgresql-client

Install postgresql-client
sudo dnf module enable postgresql:13/client

sudo dnf module install postgresql:13/client

Install homeland other depends

Install homeland other depends
yum install redis

yum install memcached

yum install ImageMagick

yum install ghostscript

Setup thape_forum user account

Setup thape_forum user account
adduser thape_forum

cd /etc/sudoers.d/

echo "thape_forum ALL=(ALL) NOPASSWD:ALL" > 20-thape_forum-user

sudo su - thape_forum

mkdir .ssh

chmod 700 .ssh

vi .ssh/authorized_keys # and paste your public key

chmod 600 .ssh/authorized_keys

Install rbenv & ruby

Install rbenv & ruby
sudo dnf -y install git git-lfs make gcc curl openssl-devel zlib-devel libffi-devel readline-devel sqlite-devel

sudo yum --enablerepo=powertools install libyaml-devel libffi-devel

curl -fsSL https://github.com/rbenv/rbenv-installer/raw/HEAD/bin/rbenv-installer | bash

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc

echo 'eval "$(rbenv init -)"' >> ~/.bashrc

source ~/.bashrc

rbenv -v

rbenv install -l

rbenv install 3.2.3

ruby --version

echo "gem: --no-document" > ~/.gemrc

gem update --system

Prepare the capistrano deploy folder

Prepare the capistrano deploy folder
cd /var

sudo mkdir -p www/thape_forum

cd www

sudo chown -R thape_forum:thape_forum thape_forum/

bundle exec cap production puma:config

Create postgresql db user and import DB

Create postgresql db user and import DB
sudo su - postgres

createuser thape_forum

psql

ALTER ROLE thape_forum LOGIN;

CREATE DATABASE thape_forum_prod WITH ENCODING='UTF8' OWNER=thape_forum;

logout

psql -d thape_forum_prod -f thape_forum_db.sql

Install nginx-mod-http-image-filter

Install nginx-mod-http-image-filter
sudo dnf makecache --refresh

sudo dnf -y install nginx-mod-http-image-filter

Original post

Install Ruby 3.2

Ruby 3.2 need Rust to build JIT.

Install Ruby 3.2
yum --enablerepo=powertools install libyaml-devel

yum install -y rust

Using the NFS Drive in Ubuntu 20.04

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Run as root
apt-get install nfs-common

mkdir -p /mnt/codebase_backup

chown root:root codebase_backup/

mount -t nfs 172.17.0.1:/ifs/NFS-Directory/codebase_backup-NFS /mnt/codebase_backup

echo '172.17.0.1:/ifs/NFS-Directory/codebase_backup-NFS /mnt/codebase_backup nfs defaults 0 0' >> /etc/fstab

Clean Xcode Disk Usage

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Clean Xcode disk usage
xcode-select -p # default /Library/Developer/CommandLineTools

sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer

xcrun simctl delete unavailable

sudo xcode-select --switch /Library/Developer/CommandLineTools

Install or Update Chromium in MacOS via Brew

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The Chromium is not signed, so need using xattr to allow it.

Remove the macOS quarantine attribute from Chromium
brew install --cask chromium

brew upgrade --cask chromium

xattr -dr com.apple.quarantine /Applications/Chromium.app/

Eric-Guo's Macbook Shortcut Cheetsheet

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CMD keys

Shortcut Description
cmd+ctl+Q Lock screen

FN keys

Shortcut Description
fn+A Navigate Dock
fn+C Control Center
fn+E Emoji & Symbols
fn+F Enter/Exit Full Screen
fn+H Desktop
fn+M Navigate Main Menu
fn+N Notifications
fn+Q Quick Note

original

shortcut in Finder

Shortcut Description
cmd+opt+P Show/Hide Path bar

Quick Clean Server Disk Usage Command in Safe Way

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SystemD journal clean

SystemD journal clean
journalctl --disk-usage

sudo journalctl --vacuum-size=2000M # Delete log files until the disk space taken falls below the specified size:

Or see further command

Apt cache clean

Apt cache clean
sudo apt-get clean

Yum cache clean

Yum cache clean
sudo yum clean all

Yarn cache clean

Yarn cache clean
yarn cache clean --force

Docker cache clean

Docker cache clean
docker system df

docker system prune -a

original from stackoverflow

My Monthly Subscription Review List

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No one like subscription, but we must pay something we really need every month and here is my list in RMB:

  1. (21) iCloud 200GB
  2. (15) Apple Music
  3. (23) Dragonruby Pro (annual 42 USD)
  4. (33) bandwagon host (month 33 USD)
  5. (6) Adblock Pro (annual 70 RMB)
  6. (6) MarginNote 3 OCR (annual 68 RMB)
  7. (28) Rubymine (annual 53 USD)
  8. (27) Medium Member (annual 50 USD)
  9. (6) blog domain (annual 10 USD)
  10. (1.5) 香哈菜谱 (annual 18 RMB)
  11. (10) AWS hosting
  12. (16.8) Meituan biking
  13. (50) Slack (month 8 USD)
  14. (38) Google Workspace Business Starter (month 6 USD)

So totally 282 RMB per month have to pay.