sql-node use of ftp protocol for METHODMAKER_PACKAGE_URL

[herveleclerc]

I have this error when ftp protocol is used
Cannot open: ftp://rpmfind.net/linux/epel/7/x86_64/p/perl-Class-MethodMaker-2.20-1.el7.x86_64.rpm. Skipping.

to fix it
ENV METHODMAKER_PACKAGE_URL http://rpmfind.net/linux/epel/7/x86_64/p/perl-Class-MethodMaker-2.20-1.el7.x86_64.rpm