building and packaging some OR tools for bare or docker.

sometimes we may need start a local file server for download the packages we need (like some GFW things), you can find The Directory Structure Specification in or-dktools-pkgs.

when we install systemtap we must confirm that we have already install the corresponding version's kernel pkgs, just like:

• kernel-${KERNEL_VERSION}.rpm
• kernel-devel-${KERNEL_VERSION}.rpm
• kernel-debuginfo-common-x86_64-${KERNEL_VERSION}.rpm
• kernel-debuginfo-${KERNEL_VERSION}.rpm

if the kernel pkg's version is not matching with $(uname -r), then our installation will be faile.

if we building a docker image for systemtap, we should also confirm that the kernel pkgs in the container must be matching with our host's $(uname -r). thus, we have .kernel-url-conf script to conf a ${KERNEL_URL_MAP} for the kernel pkgs downloading, and we also check to using the s�pecified KERNEL_URL to download install the matching kernel pkgs.