Add a kojid.service that overrides the upstream one and sets TasksMax to infinity.

We will want to drop this once upstream has added this.
This hopefully fixes kernel and other package builds that have been failing with anoying fork errors.

roles/koji_builder/files/kojid.service

@@ -0,0 +1,15 @@
+[Unit]
+Description=Koji build server
+Documentation=https://fedoraproject.org/wiki/Koji/ServerHowTo
+
+After=network.target
+
+[Service]
+TasksMax=infinity
+ExecStart=/usr/sbin/kojid \
+       --fg \
+       --force-lock \
+       --verbose
+
+[Install]
+WantedBy=multi-user.target

roles/koji_builder/tasks/main.yml

@@ -120,6 +120,14 @@
   tags:
   - koji_builder
 
+- name: override kojid.service file to set TasksMax to unlimited
+  file: src=kojid.service dest=/etc/systemd/system/kojid.conf
+  notify:
+  - reload systemd
+  - restart kojid
+  tags:
+  - koji_builder
+
 # setup for oz/imagefactory
 - name: make .psphere dir
   file: state=directory path=/root/.psphere mode=775 owner=root group=root