X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/246413f02ca8711f117a8575fccfec82e5dbfe23..c3cc1d58b64940a2bd79f27a9d0fdc50318dbb99:/services/dockercleaner/arvados-docker-cleaner.service?ds=sidebyside

diff --git a/services/dockercleaner/arvados-docker-cleaner.service b/services/dockercleaner/arvados-docker-cleaner.service
index 416ea4422c..031058242a 100644
--- a/services/dockercleaner/arvados-docker-cleaner.service
+++ b/services/dockercleaner/arvados-docker-cleaner.service
@@ -10,10 +10,10 @@ Restart=always
 RestartSec=10s
 RestartPreventExitStatus=2
 #
-# If your deployment uses a Python 3 Software Collection, uncomment the
-# ExecStart line below, and delete the following one:
-#ExecStart=/usr/bin/env scl enable python33 arvados-docker-cleaner
-ExecStart=/usr/bin/env arvados-docker-cleaner
+# This unwieldy ExecStart command detects at runtime whether
+# arvados-docker-cleaner is installed with the Python 3.3 Software
+# Collection, and if so, invokes it with the "scl" wrapper.
+ExecStart=/bin/sh -c 'if [ -e /opt/rh/python33/root/bin/arvados-docker-cleaner ]; then exec scl enable python33 arvados-docker-cleaner; else exec arvados-docker-cleaner; fi'
 
 [Install]
 WantedBy=multi-user.target