build_nginx.sh

#!/usr/bin/env bash

set -eufo pipefail

SUDO=""
if [ "$EUID" -ne 0 ]; then
  SUDO="sudo"
  if ! [ -x "$(command -v $SUDO)" ]; then
    echo "Error: Running script as non-root and $SUDO is not installed. Exiting." >&2
    exit 1
  fi
fi

main() {
  # names of latest versions of each package
  local NGINX_VERSION=1.21.4
  local VERSION_NGINX=nginx-$NGINX_VERSION
  local VERSION_LIBRESSL=libressl-3.4.1
  local VERSION_PCRE=pcre-8.45

  # URLs to the source directories
  local SOURCE_NGINX=https://nginx.org/download/
  local SOURCE_LIBRESSL=https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/
  local SOURCE_PCRE=https://ftp.pcre.org/pub/pcre/

  # set where LibreSSL and nginx will be built
  local BPATH=$(pwd)/build
  local STATICLIBSSL=$BPATH/$VERSION_LIBRESSL

  # clean out any files from previous runs of this script
  rm -rf build
  mkdir build

  # ensure that we have the required software to compile our own nginx
  $SUDO apt-get update \
  && $SUDO apt-get -y install --no-install-recommends ca-certificates wget build-essential libgd-dev libgeoip-dev checkinstall libxslt1-dev make gcc zlib1g-dev

  # grab the source files
  echo "Download sources"
  download "$SOURCE_NGINX$VERSION_NGINX.tar.gz" ./build "d1f72f474e71bcaaf465dcc7e6f7b6a4705e4b1ed95c581af31df697551f3bfe"
  download "$SOURCE_LIBRESSL$VERSION_LIBRESSL.tar.gz" ./build "107ceae6ca800e81cb563584c16afa36d6c7138fade94a2b3e9da65456f7c61c"
  download "$SOURCE_PCRE$VERSION_PCRE.tar.gz" ./build "4e6ce03e0336e8b4a3d6c2b70b1c5e18590a5673a98186da90d4f33c23defc09"

  # expand the source files
  cd build
  tar xzf $VERSION_NGINX.tar.gz
  tar xzf $VERSION_LIBRESSL.tar.gz
  tar xzf $VERSION_PCRE.tar.gz
  cd ../

  # build static LibreSSL
  echo "Configure & Build LibreSSL"
  cd $STATICLIBSSL
  ./config LDFLAGS=-lrt --prefix=${STATICLIBSSL}/.openssl/ \
  && make install-strip

  # make the current live nginx the new back-up nginx
  if [ -d /etc/nginx ]
  then
    mv /etc/nginx /etc/nginx-bk
    mkdir /etc/nginx
  fi

  # build nginx, with various modules included/excluded
  echo "Configure & Build Nginx"
  cd $BPATH/$VERSION_NGINX
  ./configure \
    --prefix=/etc/nginx \
    --sbin-path=/usr/sbin/nginx \
    --conf-path=/etc/nginx/nginx.conf \
    --error-log-path=/var/log/nginx/error.log \
    --http-log-path=/var/log/nginx/access.log \
    --pid-path=/run/nginx.pid \
    --lock-path=/var/run/nginx.lock \
    --http-client-body-temp-path=/var/cache/nginx/client_temp \
    --http-proxy-temp-path=/var/cache/nginx/proxy_temp \
    --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp \
    --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp \
    --http-scgi-temp-path=/var/cache/nginx/scgi_temp \
    --user=nginx \
    --group=nginx \
    --with-http_ssl_module \
    --with-http_realip_module \
    --with-http_addition_module \
    --with-http_sub_module \
    --with-http_dav_module \
    --with-http_gunzip_module \
    --with-http_gzip_static_module \
    --with-http_secure_link_module \
    --with-http_stub_status_module \
    --with-http_auth_request_module \
    --with-file-aio \
    --with-http_v2_module \
    --with-ld-opt="-lrt" \
    --with-openssl=$STATICLIBSSL \
    --with-pcre=$BPATH/$VERSION_PCRE \
    --with-pcre-jit

  touch $STATICLIBSSL/.openssl/include/openssl/ssl.h
  make \
  && $SUDO checkinstall --pkgname="nginx-libressl" --pkgversion="$NGINX_VERSION" \
  --provides="nginx" --requires="libc6, libpcre3, zlib1g" --strip=yes \
  --stripso=yes --backup=yes -y --install=yes

  if [ -d /etc/nginx-bk ]
  then
    # remove the old default nginx config directories generated by previous runs of this script
    rm -rf /etc/nginx-default
    # rename the compiled default /etc/nginx directory so it's accessible as a reference to the new nginx defaults
    mv /etc/nginx /etc/nginx-default
    # now restore /etc/nginx-bk to /etc/nginx so the old configuration is kept
    mv /etc/nginx-bk /etc/nginx
  fi

  echo "All done.";
  echo "This build has not edited your existing /etc/nginx directory.";
  echo "If things aren't working now you may need to refer to the";
  echo "configuration files the new nginx ships with as defaults,";
  echo "which are available at /etc/nginx-default";

  $SUDO mkdir -p /var/log/nginx /var/cache/nginx
  $SUDO adduser --system --group --disabled-login --no-create-home --shell /bin/false nginx

  upgrade_binary
}

download() {
  local url=$1
  local target=$2
  local expected_checksum=$3
  local filename=${url##*/}
  echo "Downloading $url"
  wget --quiet -P $target $url
  local checksum=$(<"$target/$filename" sha256sum --binary | cut --bytes=1-64)
  if [ "${checksum}" != "${expected_checksum}" ]; then
    echo "Checksum for ${filename} did not match"
    exit
  fi
  echo "Checksum ok"
}

upgrade_binary() {
  if [ ! -f /run/nginx.pid ]
  then
    return
  fi

  echo "Sending USR2 to old binary"
  kill -USR2 $(cat /run/nginx.pid)

  echo "Sleeping 3 seconds before pid-files checking"
  sleep 3
  if [ ! -f /run/nginx.pid.oldbin ]; then
    echo "File with old pid not found"
    exit
  fi
  if [ ! -f /run/nginx.pid ]; then
    echo "New binary failed to start"
    exit
  fi

  echo "Sleeping 3 seconds before WINCH"
  sleep 3
  kill -WINCH $(cat /run/nginx.pid.oldbin)

  echo "Sending QUIT to old binary"
  kill -QUIT $(cat /run/nginx.pid.oldbin)

  echo "Upgrade completed. New binary up and running."
}

main "$@"

Hi,

my question is if you could implement the ngx_brotli_filter_module into this script here, please. Link here.

So nginx, after compiling, would be able to handle brotli compressed files on the fly (useful for Chrome and Firefox Browsers!)

Thank you!