test/iscsi: run cleanup once before running the tests

Run iscsicleanup once before running the tests. This is
to ensure we delete any stale entries or files if they
were not removed properly in previous test runs.

Fixes #1311

Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Change-Id: Idb415adddfaa7cbb443377a292fae357c1707e79
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1539
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>

test/common/autotest_common.sh

@@ -578,6 +578,7 @@ function iscsicleanup() {
 	echo "Cleaning up iSCSI connection"
 	iscsiadm -m node --logout || true
 	iscsiadm -m node -o delete || true
+	rm -rf /var/lib/iscsi/nodes/*
 }
 
 function stop_iscsi_service() {

test/iscsi_tgt/iscsi_tgt.sh

@@ -17,6 +17,10 @@ else
 	exit 1
 fi
 
+# Run cleanup once to make sure we remove any stale iscsiadm
+# entries if they were missed in previous runs
+iscsicleanup
+
 # Network configuration
 create_veth_interfaces $TEST_TYPE