add sakbf prep role

playbooks/pre-flight.yml

@@ -50,4 +50,13 @@
       tags:
         - workstation
         - ad482
+    - include_role:
+        name: setup-for-sakbf
+        apply:
+          tags:
+            - workstation
+            - sakbf
+      tags:
+        - workstation
+        - sakbf
 ...

playbooks/roles/setup-for-sakbf/tasks/main.yml

@@ -1,6 +1,7 @@
 ---
+# Sets the lab env up for Streams BF labs.
 #
-# TODO: set java/javac back to 21 (for the custom part)
+# For now, just resets the Java alternatives back to Java 21.
 #
 - name: Ensure Java is versioned correctly for Streams BF labs
   become: yes