feat: add radius role

roles/radius/templates/etc/raddb/proxy.conf

@@ -0,0 +1,38 @@
+home_server eduroam_roaming0 {
+    ipaddr = roaming0.ja.net
+    secret = {{ radius_roaming0_secret }}
+    status_check = status-server
+    response_window = 5
+    check_interval = 10
+    check_timeout = 5
+}
+
+home_server eduroam_roaming1 {
+    ipaddr = roaming1.ja.net
+    secret = {{ radius_roaming1_secret }}
+    status_check = status-server
+    response_window = 5
+    check_interval = 10
+    check_timeout = 5
+}
+
+home_server eduroam_roaming2 {
+    ipaddr = roaming2.ja.net
+    secret = {{ radius_roaming2_secret }}
+    status_check = status-server
+    response_window = 5
+    check_interval = 10
+    check_timeout = 5
+}
+
+home_server_pool eduroam_flr_pool {
+    type = keyed-balance
+    home_server = eduroam_roaming0
+    home_server = eduroam_roaming1
+    home_server = eduroam_roaming2
+}
+
+realm eduroam_flr {
+    auth_pool = eduroam_flr_pool
+    nostrip
+}