pin apptainer version for sl7

Author: kpedro88

HeterogeneousCore/SonicTriton/scripts/cmsTriton

@@ -23,6 +23,11 @@ IMAGE=fastml/triton-torchgeo:22.07-py3-geometric
 SANDBOX=""
 COMPAT_USR=""
 EXTRAPATH=/cvmfs/oasis.opensciencegrid.org/mis/apptainer/current/bin
+OSVERSION=$(sed -nr 's/[^0-9]*([0-9]+).*/\1/p' /etc/redhat-release)
+if [ "$OSVERSION" -eq 7 ]; then
+	# this is the latest version with guaranteed sl7 support
+	EXTRAPATH=/cvmfs/oasis.opensciencegrid.org/mis/apptainer/1.2.5/bin
+fi
 DEVICE=auto
 THREADCONTROL=""