Creating Apptainer RTE

src/services/a-rex/rte/ENV/APPTAINER

+# description: executes the job inside apptainer container
+# param:APPTAINER_IMAGE:string:NULL:apptainer image or tree per VO, key:value comma separated, key default if VO not matched
+# param:APPTAINER_OPTIONS:string: :apptainer options
+# param:BINARY_PATH:string:/usr/bin/apptainer:apptainer binary location
+
+APPTAINER_OPTIONS="${APPTAINER_OPTIONS:-}"
+APPTAINER_IMAGE="${APPTAINER_IMAGE:-}"
+BINARY_PATH="${BINARY_PATH:-'/usr/bin/apptainer'}"
+BINARY_PATH="${4:-$BINARY_PATH}"
+
+DEFAULT_IMAGE="NULL"
+
+
+if [ "x$1" = "x0" ]; then
+
+    LOCAL_FILE=$(control_path "${joboption_controldir}" "${joboption_gridid}" "local")
+    
+    # get VO
+    #vo=`arcproxy -P $joboption_controldir/job.$joboption_gridid.proxy -i vomsVO 2> /dev/null`
+    vo=`grep voms= $LOCAL_FILE | awk -F / '{print $2}'|sort -u`
+    
+    values=`echo $APPTAINER_IMAGE | sed -e 's/,/ /g'`
+    for i in $values
+    do
+        voname=`echo $i | awk -F : '{print $1}'`
+        voimage=`echo $i | awk -F : '{print $2}'`
+	if [ "xdefault" = "x$voname" ]; then
+	    DEFAULT_IMAGE=$voimage
+	fi
+	if [ "x$vo" = "x$voname" ] ; then
+	    IMAGE=$voimage
+	fi
+    done
+
+    IMAGE="${IMAGE:-$DEFAULT_IMAGE}"
+
+    # explicit image, NULL skips container
+    IMAGE="${2:-$IMAGE}"
+    # unquote IMAGE
+    temp="${IMAGE%\"}"
+    temp="${temp#\"}"
+    IMAGE=$temp
+
+    # Check if apptainer already used/set by another RTE
+    echo $joboption_args |grep -q apptainer; sused=$?
+
+    if [ "x$IMAGE" != "xNULL" ] && [ "x$sused" == "x1" ] ; then
+       joboption_args="$BINARY_PATH exec $APPTAINER_OPTIONS --home \${RUNTIME_JOB_DIR} $IMAGE $joboption_args"
+       # account apptainer image usage
+       export ACCOUNTING_WN_INSTANCE="${IMAGE}"
+    fi
+fi