debuginfod: add systemd drop-in tweaks

Already in effect on prod & stg, formalize these configuration tweaks
that limit overload, improve cgroup monitoring, and build tolerance to
transient fileserver problems.

files/debuginfod/debuginfod.service.d

@@ -0,0 +1,10 @@
+[Service]
+TasksMax=40
+CPUAccounting=yes
+IOAccounting=yes
+IPAccounting=yes
+BlockIOAccounting=yes
+MemoryAccounting=yes
+TasksAccounting=yes
+ConditionPathExists=/mnt/fedora_koji_prod/koji/packages 
+

playbooks/groups/debuginfod.yml

@@ -41,6 +41,14 @@
   - name: install debuginfod configuration
     copy: src="{{ files }}/debuginfod/sysconfig.debuginfod" dest=/etc/sysconfig/debuginfod owner=root group=root mode=644
 
+  - name: ensure systemd drop-in directory exists
+    file: >
+      dest=/etc/systemd/system/debuginfod.service.d
+      state=directory
+    
+  - name: install debuginfod systemd drop-in
+    copy: src="{{ files }}/debuginfod/debuginfod.service.d" dest=/etc/systemd/system/debuginfod.service.d/override.conf owner=root group=root mode=644    
+
   - name: ensure debuginfod is enabled and started
     service:
       name: debuginfod