Deprecate rancheros

https://github.com/rancher/os#development-and-maintenance-status

Closes https://github.com/netbootxyz/netboot.xyz/issues/1173

README.md

@@ -169,7 +169,6 @@ In addition to being able to host netboot.xyz locally, you can also create your
 | Proxmox Open Source Products | https://www.proxmox.com/ | Yes | No |
 | Q4OS | https://q4os.org | No | Yes |
 | Raizo | https://sourceforge.net/projects/live-raizo/ | No | Yes |
-| RancherOS | https://rancher.com/rancher-os | Yes | No |
 | Red Hat Enterprise Linux | https://www.redhat.com | User supplied media | No |
 | Regolith | https://regolith-linux.org | No | Yes |
 | Rocky Linux | https://rockylinux.org/ | Yes | No |

roles/netbootxyz/defaults/main.yml

@@ -405,15 +405,6 @@ releases:
     enabled: true
     menu: linux
     name: Proxmox
-  rancheros:
-    base_dir: os/latest
-    enabled: true
-    menu: linux
-    mirror: http://releases.rancher.com
-    name: RancherOS
-    versions:
-    - code_name: latest
-      name: Latest (20 MB)
   rhel:
     enabled: true
     menu: linux

roles/netbootxyz/templates/menu/rancheros.ipxe.j2

@@ -1,29 +0,0 @@
-#!ipxe
-
-# RancherOS
-# http://rancher.com/rancher-os/
-
-:rancheros_menu
-set os {{ releases.rancheros.name }}
-set url ${rancheros_mirror}
-menu ${os}
-{% for item in releases.rancheros.versions %}
-item {{ item.code_name }} ${space} ${os} {{ item.name }}
-{% endfor %}
-choose version || goto rancheros_exit
-goto ${version}
-
-:latest
-echo ${cls}
-set folder ${rancheros_base_dir}
-goto boot
-
-:boot
-imgfree
-kernel ${url}/${folder}/vmlinuz rancher.autologin=tty1 {{ kernel_params }}
-initrd ${url}/${folder}/initrd
-boot
-
-:rancheros_exit
-clear menu
-exit 0