Set flags for build

Signed-off-by: cherry530 <xuping33@huawei.com>
(cherry picked from commit e104df79e00e3d214a8981d9bf51f46b5aba723d)

pushgateway.spec

@@ -8,7 +8,7 @@
 
 Name:    pushgateway
 Version: 1.4.1
-Release: 3
+Release: 4
 Summary: Prometheus pushgateway.
 License: ASL 2.0
 URL:     https://github.com/prometheus/%{name}
@@ -37,7 +37,7 @@ The Pushgateway then exposes these metrics to Prometheus.
 %build
 mkdir -p $(pwd)/bin
 export GOBIN=$(pwd)/bin
-go build -mod=vendor -o bin ./ ...
+go build -mod=vendor -buildmode=pie -ldflags "-s -w" -o bin ./ ...
 
 %install
 mkdir -p %{buildroot}%{_bindir}
@@ -70,6 +70,9 @@ exit 0
 %dir %attr(755, prometheus, prometheus)%{_sharedstatedir}/prometheus
 
 %changelog
+* Thu Feb 09 2023 xu_ping <xuping33@h-partners.com> - 1.4.1-4
+- set flags for build
+
 * Thu Jan 5 2023 caodongxia <caodongxia@h-partners.com> - 1.4.1-3
 - Add buildRequires systemd