Fix issues #2246 (#2403)

Support Centos/Fedora atomic host

README.md

@@ -69,6 +69,7 @@ Supported Linux Distributions
 -   **Debian** Jessie
 -   **Ubuntu** 16.04
 -   **CentOS/RHEL** 7
+-   **Fedora/CentOS** Atomic
 
 Note: Upstart/SysV init based OS types are not supported.
 

docs/atomic.md

@@ -7,7 +7,7 @@ Note: Flannel is the only plugin that has currently been tested with atomic
 
 ### Vagrant
 
-* For bootstrapping with Vagrant, use box centos/atomic-host 
+* For bootstrapping with Vagrant, use box centos/atomic-host or fedora/atomic-host 
 * Update VagrantFile variable `local_release_dir` to `/var/vagrant/temp`.
 * Update `vm_memory = 2048` and `vm_cpus = 2`
 * Networking on vagrant hosts has to be brought up manually once they are booted.
@@ -17,6 +17,7 @@ Note: Flannel is the only plugin that has currently been tested with atomic
     sudo /sbin/ifup enp0s8
     ```
 
-* For users of vagrant-libvirt download qcow2 format from https://wiki.centos.org/SpecialInterestGroup/Atomic/Download/
+* For users of vagrant-libvirt download centos/atomic-host qcow2 format from https://wiki.centos.org/SpecialInterestGroup/Atomic/Download/
+* For users of vagrant-libvirt download fedora/atomic-host qcow2 format from https://getfedora.org/en/atomic/download/
 
-Then you can proceed to [cluster deployment](#run-deployment)
\ No newline at end of file
+Then you can proceed to [cluster deployment](#run-deployment)