Document of building.md is not clear for manully building flannel.exe

[JohnJAS]

Document of building.md is not clear for manully building flannel.exe
And it is quite confusing for the beginner like me.

Expected Behavior

Make it more clear

Current Behavior

It is not so friendly to beginners.

Possible Solution

1.Make sure you have required dependencies installed on your machine.
On Ubuntu, run sudo apt-get install linux-libc-dev golang gcc.
On Fedora/Redhat, run sudo yum install kernel-headers golang gcc.

For Ubuntu(I only tested on it),
User also need to update the golang verion to 1.7 or above to compile but apt-get only supported 1.6.
mingw-w64 needed.

sudo apt-get install mingw-w64

Steps to Reproduce (for bugs)

1. Following the building.md to compile flanneld.exe

Context

Your Environment

• Flannel version:
• Backend used (e.g. vxlan or udp):
• Etcd version:
• Kubernetes version (if used):
• Operating System and version:
  Ubuntu 16.04.2
• Link to your project (optional):

[rajatchopra]

@madhanrm @ksubrmnn Can you advise here?
@JohnJAS Would you mind posting a doc-update PR?

[JohnJAS]

@rajatchopra Sure, I just create a PR for it. Maybe it can be some help for you.
Refer to: #1089

[ksubrmnn]

Fixed by #1089

Can you close this issue @JohnJAS

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.