We know CPU_0 exists

Author: vmcj

icpc-wf/ansible/judgehost.yml

@@ -43,12 +43,15 @@
   pre_tasks:
     - name: Get current services
       service_facts:
+    - name: Print all available facts
+      ansible.builtin.debug:
+        var: ansible_facts
     - name: Disable all cores
       service:
         name="domjudge-judgedaemon@{{item}}"
         state=stopped
       with_sequence: start=0 end={{ ansible_processor_vcpus }} format=domjudge-judgedaemon@%1x
-      when: domjudge-judgedaemon@%1x in services
+      when: domjudge-judgedaemon@0 in services
   tasks:
     - name: add autostart shortcuts
       template: