add nginx-le for letsencrypt support

certs/nginx-le.sh

+#!/bin/sh -x
+
+DOMAIN=$1
+
+[ -n "$DOMAIN" ] || exit
+
+DIR=/var/spool/nginx/tmp/client
+
+# add
+# include              include/letsencrypt.conf;
+
+serv nginx reload
+
+letsencrypt certonly --webroot -w$DIR -d $DOMAIN || exit
+
+NCONF=/etc/nginx/sites-enabled.d/$DOMAIN.conf
+KEY=/etc/letsencrypt/live/$DOMAIN/privkey.pem
+PEM=/etc/letsencrypt/live/$DOMAIN/fullchain.pem
+SP="[ 	]"
+subst "s|\(ssl_certificate$SP\)\($SP*\).*|\1\2$PEM;|g" $NCONF
+subst "s|\(ssl_certificate_key$SP\)\($SP*\).*|\1\2$KEY;|g" $NCONF
+
+serv nginx reload