Makefile: suffix test log files

In preparation of running all tests inside container.
Currently, we run Jenkins in shared environment.
This is not good. Need manual Go runtime updates,
cannot run two different branches, port conflicts,
out of disk errors, etc.

Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>

Makefile

@@ -1,4 +1,6 @@
-# run makefile from repo root
+# run from repository root
+
+TEST_SUFFIX = $(shell date +%s | base64 | head -c 15)
 
 .PHONY: build
 build:
@@ -6,15 +8,24 @@ build:
 	./bin/etcd --version
 	ETCDCTL_API=3 ./bin/etcdctl version
 
-# run all tests
+test:
+	$(info log-file: test-$(TEST_SUFFIX).log)
+	PASSES='fmt bom dep compile build unit' ./test 2>&1 | tee test-$(TEST_SUFFIX).log
+	! grep FAIL -A10 -B50 test-$(TEST_SUFFIX).log
+
 test-all:
-	RELEASE_TEST=y INTEGRATION=y PASSES='build unit release integration_e2e functional' ./test 2>&1 | tee test.log
+	$(info log-file: test-all-$(TEST_SUFFIX).log)
+	RELEASE_TEST=y INTEGRATION=y PASSES='build unit release integration_e2e functional' ./test 2>&1 | tee test-all-$(TEST_SUFFIX).log
+	! grep FAIL -A10 -B50 test-all-$(TEST_SUFFIX).log
 
 test-proxy:
-	PASSES='build grpcproxy' ./test 2>&1 | tee test-proxy.log
+	$(info log-file: test-proxy-$(TEST_SUFFIX).log)
+	PASSES='build grpcproxy' ./test 2>&1 | tee test-proxy-$(TEST_SUFFIX).log
+	! grep FAIL -A10 -B50 test-proxy-$(TEST_SUFFIX).log
 
 test-coverage:
-	COVERDIR=covdir PASSES='build build_cov cov' ./test 2>&1 | tee test-coverage.log
+	$(info log-file: test-coverage-$(TEST_SUFFIX).log)
+	COVERDIR=covdir PASSES='build build_cov cov' ./test 2>&1 | tee test-coverage-$(TEST_SUFFIX).log
 	$(shell curl -s https://codecov.io/bash >codecov)
 	chmod 700 ./codecov
 	./codecov -h
@@ -32,8 +43,7 @@ clean:
 	rm -f ./clientv3/integration/127.0.0.1:* ./clientv3/integration/localhost:*
 	rm -f ./clientv3/ordering/127.0.0.1:* ./clientv3/ordering/localhost:*
 
-# keep in-sync with 'Dockerfile-test', 'e2e/docker-dns/Dockerfile',
-# 'e2e/docker-dns-srv/Dockerfile'
+# sync with Dockerfile-test, e2e/docker-dns/Dockerfile, e2e/docker-dns-srv/Dockerfile
 _GO_VERSION = go1.9.1
 ifdef GO_VERSION
 	_GO_VERSION = $(GO_VERSION)
@@ -61,31 +71,38 @@ docker-test-compile:
 
 # run tests inside container
 docker-test:
+	$(info log-file: docker-test-$(TEST_SUFFIX).log)
 	docker run \
 	  --rm \
 	  --volume=`pwd`:/go/src/github.com/coreos/etcd \
 	  gcr.io/etcd-development/etcd-test:$(_GO_VERSION) \
-	  /bin/bash -c "RELEASE_TEST=y INTEGRATION=y PASSES='build unit release integration_e2e functional' ./test 2>&1 | tee docker-test.log"
+	  /bin/bash -c "RELEASE_TEST=y INTEGRATION=y PASSES='build unit release integration_e2e functional' ./test 2>&1 | tee docker-test-$(TEST_SUFFIX).log"
+	! grep FAIL -A10 -B50 docker-test-$(TEST_SUFFIX).log
 
 docker-test-386:
+	$(info log-file: docker-test-386-$(TEST_SUFFIX).log)
 	docker run \
 	  --rm \
 	  --volume=`pwd`:/go/src/github.com/coreos/etcd \
 	  gcr.io/etcd-development/etcd-test:$(_GO_VERSION) \
-	  /bin/bash -c "GOARCH=386 PASSES='build unit integration_e2e' ./test 2>&1 | tee docker-test.log"
+	  /bin/bash -c "GOARCH=386 PASSES='build unit integration_e2e' ./test 2>&1 | tee docker-test-386-$(TEST_SUFFIX).log"
+	! grep FAIL -A10 -B50 docker-test-386-$(TEST_SUFFIX).log
 
 docker-test-proxy:
+	$(info log-file: docker-test-proxy-$(TEST_SUFFIX).log)
 	docker run \
 	  --rm \
 	  --volume=`pwd`:/go/src/github.com/coreos/etcd \
 	  gcr.io/etcd-development/etcd-test:$(_GO_VERSION) \
-	  /bin/bash -c "PASSES='build grpcproxy' ./test ./test 2>&1 | tee docker-test.log"
+	  /bin/bash -c "PASSES='build grpcproxy' ./test ./test 2>&1 | tee docker-test-proxy-$(TEST_SUFFIX).log"
+	! grep FAIL -A10 -B50 docker-test-proxy-$(TEST_SUFFIX).log
 
 # build release container image with Linux
 _ETCD_VERSION ?= $(shell git rev-parse --short HEAD || echo "GitNotFound")
 ifdef ETCD_VERSION
 	_ETCD_VERSION = $(ETCD_VERSION)
 endif
+
 docker-release-master-build: docker-test-compile
 	cp ./Dockerfile-release ./bin/Dockerfile-release
 	docker build \