Fetch, build, and install the latest nginx with the latest OpenSSL for RaspberryPi with optional TLS1.3 support

build_nginx.sh

#!/usr/bin/env bash
#From @geekmuse

## names of latest versions of each package
VERSION_PCRE=pcre-8.43
VERSION_OPENSSL=OpenSSL_1_1_1c
VERSION_NGINX=nginx-1.17.1
SOURCE_PCRE=ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/
SOURCE_OPENSSL=https://www.openssl.org/source/
SOURCE_NGINX=http://nginx.org/download/

TLS13="false"
if [ ! -z "${1}" ]; then
    TLS13="${1}"
fi

if [[ "${TLS13}" == "true" ]]; then
    VERSION_OPENSSL=tls1.3-draft-19
    SOURCE_OPENSSL=https://github.com/openssl/openssl.git
fi

if [ ! -z "${2}" ]; then
    VERSION_NGINX="nginx-${2}"
fi

# URLs to the source directories
export VERSION_OPENSSL
export SOURCE_OPENSSL
export SOURCE_PCRE
export SOURCE_NGINX
export VERSION_PCRE
export VERSION_NGINX

# make a 'today' variable for use in back-up filenames later
today=$(date +"%Y-%m-%d")

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

# ensure that we have the required software to compile our own nginx
apt-get -y install curl wget build-essential

# grab the source files
wget -P ./build $SOURCE_PCRE$VERSION_PCRE.tar.gz
if [[ "${TLS13}" == "true" ]]; then
    git clone -b "${VERSION_OPENSSL}" "${SOURCE_OPENSSL}" "build/${VERSION_OPENSSL}"
else
    wget -P ./build $SOURCE_OPENSSL$VERSION_OPENSSL.tar.gz --no-check-certificate
fi
wget -P ./build $SOURCE_NGINX$VERSION_NGINX.tar.gz

# expand the source files
cd build
tar xzf $VERSION_NGINX.tar.gz
if [[ "${TLS13}" != "true" ]]; then
    tar xzf $VERSION_OPENSSL.tar.gz
fi
tar xzf $VERSION_PCRE.tar.gz
cd ../

# set where OpenSSL and nginx will be built
export BPATH=$(pwd)/build
export STATICLIBSSL="$BPATH/staticlibssl"

# build static openssl
cd $BPATH/$VERSION_OPENSSL
rm -rf "$STATICLIBSSL"
mkdir "$STATICLIBSSL"
make clean
./config --prefix=$STATICLIBSSL no-shared \
&& make depend \
&& make \
&& make install_sw

# rename the existing /etc/nginx directory so it's saved as a back-up
mv /etc/nginx /etc/nginx-$today

# build nginx, with various modules included/excluded
cd $BPATH/$VERSION_NGINX
mkdir -p $BPATH/nginx
if [[ "${TLS13}" == "true" ]]; then
    ./configure --with-cc-opt="-I $STATICLIBSSL/include -I/usr/include" \
        --with-ld-opt="-L $STATICLIBSSL/lib -Wl,-rpath -lssl -lcrypto -ldl -lz" \
        --sbin-path=/usr/sbin/nginx \
        --conf-path=/etc/nginx/nginx.conf \
        --pid-path=/var/run/nginx.pid \
        --error-log-path=/var/log/nginx/error.log \
        --http-log-path=/var/log/nginx/access.log \
        --with-pcre=$BPATH/$VERSION_PCRE \
        --with-http_ssl_module \
        --with-http_v2_module \
        --with-file-aio \
        --with-openssl=$BPATH/$VERSION_OPENSSL \
        --with-http_gzip_static_module \
        --with-http_stub_status_module \
        --with-openssl-opt=enable-tls1_3 \
        --without-mail_pop3_module \
        --without-mail_smtp_module \
        --without-mail_imap_module \
        && make && make install
else
    ./configure --with-cc-opt="-I $STATICLIBSSL/include -I/usr/include" \
        --with-ld-opt="-L $STATICLIBSSL/lib -Wl,-rpath -lssl -lcrypto -ldl -lz" \
        --sbin-path=/usr/sbin/nginx \
        --conf-path=/etc/nginx/nginx.conf \
        --pid-path=/var/run/nginx.pid \
        --error-log-path=/var/log/nginx/error.log \
        --http-log-path=/var/log/nginx/access.log \
        --with-pcre=$BPATH/$VERSION_PCRE \
        --with-http_ssl_module \
        --with-http_v2_module \
        --with-file-aio \
        --with-http_gzip_static_module \
        --with-http_stub_status_module \
        --without-mail_pop3_module \
        --without-mail_smtp_module \
        --without-mail_imap_module \
        && make && make install
fi

# rename the compiled 'default' /etc/nginx directory so its accessible as a reference to the new nginx defaults
mv /etc/nginx /etc/nginx-default

# now restore the previous version of /etc/nginx to /etc/nginx so the old settings are kept
mv /etc/nginx-$today /etc/nginx

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";