nginx with OpenSSL 1.0.2 (ALPN) on CentOS 7, also available from https://brouken.com/brouken-centos-7-repo/

gistfile1.txt

### No longer needed as of nginx-1.13.6-1.el7_4.ngx.x86_64.rpm from nginx.org
### it was compiled against OpenSSL 1.0.2 from CentoOS 7.4 so it supports ALPN (HTTP2 works)

yum -y groupinstall 'Development Tools'
yum -y install wget openssl-devel libxml2-devel libxslt-devel gd-devel perl-ExtUtils-Embed GeoIP-devel rpmdevtools

OPENSSL="openssl-1.0.2l"
NGINX_VERSION="1.13.5-1"
NJS_VERSION="1.13.5.0.1.13-1"

rpm -ivh http://nginx.org/packages/mainline/centos/7/SRPMS/nginx-$NGINX_VERSION.el7.ngx.src.rpm
rpm -ivh http://nginx.org/packages/mainline/centos/7/SRPMS/nginx-module-geoip-$NGINX_VERSION.el7.ngx.src.rpm
rpm -ivh http://nginx.org/packages/mainline/centos/7/SRPMS/nginx-module-image-filter-$NGINX_VERSION.el7.ngx.src.rpm
rpm -ivh http://nginx.org/packages/mainline/centos/7/SRPMS/nginx-module-njs-$NJS_VERSION.el7.ngx.src.rpm
rpm -ivh http://nginx.org/packages/mainline/centos/7/SRPMS/nginx-module-perl-$NGINX_VERSION.el7.ngx.src.rpm
rpm -ivh http://nginx.org/packages/mainline/centos/7/SRPMS/nginx-module-xslt-$NGINX_VERSION.el7.ngx.src.rpm

sed -i "/Source12: .*/a Source100: https://www.openssl.org/source/$OPENSSL.tar.gz" /root/rpmbuild/SPECS/nginx.spec
sed -i "s|--with-http_ssl_module|--with-http_ssl_module --with-openssl=$OPENSSL|g" /root/rpmbuild/SPECS/nginx.spec
sed -i '/%setup -q/a tar zxf %{SOURCE100}' /root/rpmbuild/SPECS/nginx.spec
sed -i '/.*Requires: openssl.*/d' /root/rpmbuild/SPECS/nginx.spec
# hardening whatnots since 1.11.9
sed -i 's|%define WITH_LD_OPT .*|%define WITH_LD_OPT ""|g' /root/rpmbuild/SPECS/nginx.spec
sed -i 's| -fPIC||g' /root/rpmbuild/SPECS/nginx.spec

spectool -g -R /root/rpmbuild/SPECS/nginx.spec
# if '.rpmmacros' contains "%_sourcedir    %{_topdir}/SOURCES/%{name}"
#spectool -g -C /root/rpmbuild/SOURCES/nginx/ /root/rpmbuild/SPECS/nginx.spec

rpmbuild -ba /root/rpmbuild/SPECS/nginx.spec
rpmbuild -ba /root/rpmbuild/SPECS/nginx-module-geoip.spec
rpmbuild -ba /root/rpmbuild/SPECS/nginx-module-image-filter.spec
rpmbuild -ba /root/rpmbuild/SPECS/nginx-module-njs.spec
rpmbuild -ba /root/rpmbuild/SPECS/nginx-module-perl.spec
rpmbuild -ba /root/rpmbuild/SPECS/nginx-module-xslt.spec

#rpm -Uvh /root/rpmbuild/RPMS/x86_64/nginx-$NGINX_VERSION.el7.centos.ngx.x86_64.rpm

Great!

thank you!

If it helps anybody I added a Dockerfile to build this from any other distro https://gist.github.com/nicolasazrak/e96f707e6ba816d31e438aa2e58f27ff#file-dockerfile
It was really useful for me because I use a vps with low memory and could not build it there. So with the docker.sh script I could build it in my pc and then uploaded to the CentOS server.