test: Clean agent directories on disk before functional test runs, no…

…t after

This is primarily so CI tooling can capture the agent logs after the functional tester runs.

.gitignore

@@ -1,3 +1,4 @@
+/agent-*
 /coverage
 /gopath
 /gopath.proto

test

@@ -93,6 +93,8 @@ function integration_pass {
 }
 
 function functional_pass {
+        # Clean up any data and logs from previous runs
+  	rm -rf ./agent-*
 	for a in 1 2 3; do
 		mkdir -p ./agent-$a
 		./bin/etcd-agent -etcd-path ./bin/etcd -etcd-log-dir "./agent-$a" -port ":${a}9027" -use-root=false &
@@ -121,8 +123,6 @@ function functional_pass {
 	echo "Waiting for processes to exit"
 	kill -s TERM ${agent_pids}
 	for a in ${agent_pids}; do wait $a || true; done
-	rm -rf ./agent-*
-
 	if [[ "${ETCD_TESTER_EXIT_CODE}" -ne "0" ]]; then
 		echo "FAIL with exit code" ${ETCD_TESTER_EXIT_CODE}
 		exit ${ETCD_TESTER_EXIT_CODE}