• 学习资料
  https://github.com/discourse/discourse
  https://meta.discourse.org/t/install-discourse-on-ubuntu-or-debian-for-development/14727

netstat -ln | grep PGSQL

unix  2      [ ACC ]     STREAM     LISTENING     49268    /var/run/postgresql/.s.PGSQL.5432

export PGHOST=/var/run/postgresql

bin/rails db:create
bin/rails db:migrate

gem install thin
export ALLOW_EMBER_CLI_PROXY_BYPASS=1
thin  start

https://stackoverflow.com/questions/74410483/dpkg-error-processing-archive-on-installing-nodejs

#!/usr/bin/env bash

# Install Rails

trap 'ret=$?; test $ret -ne 0 && printf "failed\n\n" >&2; exit $ret' EXIT

# Ubuntu 22+ will prompt to restart services without these set
export NEEDRESTART_MODE=a
export DEBIAN_FRONTEND=noninteractive

set -e
log_info() {
  printf "\n\e[0;35m $1\e[0m\n\n"
}

if [ ! -f "$HOME/.bashrc" ]; then
  touch $HOME/.bashrc
fi

log_info "Updating Packages ..."
  sudo -E apt-get update

log_info "Installing Git ..."
  sudo -E apt-get -y install git

log_info "Installing build essentials ..."
  sudo -E apt-get -y install build-essential

log_info "Installing libraries for common gem dependencies ..."
  sudo -E apt-get -y install libxslt1-dev libcurl4-openssl-dev libksba8 libksba-dev libreadline-dev libssl-dev zlib1g-dev libsnappy-dev libyaml-dev

log_info "Installing sqlite3 ..."
 sudo -E apt-get -y install libsqlite3-dev sqlite3

# log_info "Installing Postgres ..."
#   sudo -E apt-get -y install postgresql postgresql-server-dev-all postgresql-contrib libpq-dev
#   cd /tmp && cd /tmp && sudo -u postgres createuser -s "$USER"

log_info "Installing curl ..."
  sudo -E apt-get -y install curl

# log_info "Installing Redis ..."
#   cd /tmp && \
#     wget https://download.redis.io/redis-stable.tar.gz && \
#     tar -xzvf redis-stable.tar.gz && \
#     cd redis-stable && \
#     make && \
#     sudo -E make install
#   cd /tmp && \
#     rm redis-stable.tar.gz && \
#     rm -Rf redis-stable

#   sudo adduser --system --group --no-create-home redis
#   FILE="/etc/systemd/system/redis-server.service"
#   if [ ! -f "$FILE" ]; then
#     sudo bash -c "cat > $FILE" <<EOF
# [unit]
# description=redis in-memory data store
# after=network.target

# [service]
# user=redis
# group=redis
# execstart=/usr/local/bin/redis-server /etc/redis/redis.conf
# execstop=/usr/local/bin/redis-cli shutdown
# restart=always

# [install]
# wantedby=multi-user.target
# EOF
#   fi

#   sudo mkdir -p /var/log/redis /var/lib/redis /etc/redis
#   sudo chown redis:redis /var/log/redis /var/lib/redis /etc/redis
#   sudo chmod 755 /var/log/redis /var/lib/redis /etc/redis

#   FILE="/etc/redis/redis.conf"

#   if [ ! -f "$FILE" ]; then
#     sudo bash -c "cat > $FILE" <<EOF
# bind 127.0.0.1
# protected-mode no
# port 6379
# dir /var/lib/redis
# dbfilename dump.rdb
# save 900 1
# save 300 10
# save 60 10000
# logfile /var/log/redis/redis-server.log
# loglevel debug
# EOF
#     sudo chown redis:redis "$FILE"
#     sudo chmod 644 "$FILE"
#   fi

#   sudo systemctl daemon-reload
#   sudo systemctl enable redis-server
#   sudo systemctl start redis-server
#   sudo systemctl status redis-server
#   sudo redis-cli ping

log_info "Installing ImageMagick ..."
  sudo -E apt-get -y install libtool
  wget https://raw.githubusercontent.com/discourse/discourse_docker/main/image/base/install-imagemagick
  chmod +x install-imagemagick
  sudo -E ./install-imagemagick

log_info "Installing image utilities ..."
  sudo -E apt-get -y install advancecomp gifsicle jpegoptim libjpeg-progs optipng pngcrush pngquant
  sudo -E apt-get -y install jhead

  # Install oxipng
  cd /tmp && \
    wget https://github.com/shssoichiro/oxipng/releases/download/v8.0.0/oxipng-8.0.0-x86_64-unknown-linux-musl.tar.gz && \
    tar -xzvf oxipng-8.0.0-x86_64-unknown-linux-musl.tar.gz && \
    sudo cp oxipng-8.0.0-x86_64-unknown-linux-musl/oxipng /usr/local/bin
  cd /tmp && \
    rm oxipng-8.0.0-x86_64-unknown-linux-musl.tar.gz && \
    rm -Rf oxipng-8.0.0-x86_64-unknown-linux-musl

if [[ ! -d "$HOME/.rbenv" ]]; then
  log_info "Installing rbenv ..."
    git clone https://github.com/rbenv/rbenv.git ~/.rbenv

    if ! grep -qs "rbenv init" ~/.bashrc; then
      printf 'export PATH="$HOME/.rbenv/bin:$PATH"\n' >> ~/.bashrc
      printf 'eval "$(rbenv init - --no-rehash)"\n' >> ~/.bashrc
    fi

    export PATH="$HOME/.rbenv/bin:$PATH"
    eval "$(rbenv init -)"
fi

if [[ ! -d "$HOME/.rbenv/plugins/ruby-build" ]]; then
  log_info "Installing ruby-build, to install Rubies ..."
    git clone https://github.com/rbenv/ruby-build.git ~/.rbenv/plugins/ruby-build
fi

ruby_version="3.2.1"

log_info "Installing Ruby $ruby_version ..."
  rbenv install "$ruby_version"

log_info "Setting $ruby_version as global default Ruby ..."
  rbenv global $ruby_version
  rbenv rehash

log_info "Updating to latest Rubygems version ..."
  gem update --system

log_info "Installing Rails ..."
  gem install rails

log_info "Installing Bundler ..."
  gem install bundler

log_info "Installing MailHog ..."
  sudo wget -qO /usr/bin/mailhog https://github.com/mailhog/MailHog/releases/download/v1.0.1/MailHog_linux_amd64
  sudo chmod +x /usr/bin/mailhog

# log_info "Installing Node.js 18 ..."
#   curl -sL https://deb.nodesource.com/setup_18.x | sudo -E bash -
#   sudo -E apt-get -y install nodejs
#   sudo npm install -g svgo
#   sudo npm install -g yarn