Add a manual implementation of building a release.

ansible/roles/freebsd_update_server/files/build_release.bash

@@ -5,11 +5,18 @@ IFS=$'\n\t'
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 function main {
-    build_release
+    build_release_script
 }
 
-function build_release {
+function build_release_script {
     /usr/src/release/release.sh -c /opt/freebsd_update_server/release.conf
 }
 
+function build_release_manually {
+    make -C /usr/src buildworld buildkernel
+    make -C /usr/src/release obj
+    make -C /usr/src/release release
+    make -C /usr/src/release install DESTDIR=/where/to/put/the/images
+}
+
 main "${@}"