added rtmp module to nginx image

nginx/build-rtmp.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env sh
+
+set -e
+
+CONFIG='
+		--prefix=/etc/nginx
+		--sbin-path=/usr/sbin/nginx
+		--modules-path=/usr/lib/nginx/modules
+		--conf-path=/etc/nginx/nginx.conf
+		--error-log-path=/var/log/nginx/error.log
+		--http-log-path=/var/log/nginx/access.log
+		--pid-path=/var/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
+		--add-dynamic-module=/ngx-rtmp-module
+'
+
+cd /nginx
+
+auto/configure $CONFIG \
+    --with-cc-opt="-I/home/luser/libressl/build/include" \
+    --with-ld-opt="-lstdc++ -L/home/luser/libressl/build/ssl -L/home/luser/libressl/build/crypto"
+make -j$(nproc)