!28 [sync] PR-27: Update rpmbuild spec, fix uninstallation issues for nvme-snsd.

From: @openeuler-sync-bot 
Reviewed-by: @liuzhiqiang26 
Signed-off-by: @liuzhiqiang26

nvme-snsd.spec

@@ -1,13 +1,13 @@
 Name: nvme-snsd
 Version: 1.00.029
-Release: 2
+Release: 3
 Summary: nvme-snsd service
 License: BSD 3-Clause
 Group: Applications/System
 URL: https://gitee.com/openeuler/%{name}
 Source: https://gitee.com/openeuler/%{name}/repository/archive/%{version}.tar.gz
 BuildRoot: %{_tmppath}/%{name}-%{version}-root
-
+Requires: glibc
 BuildRequires: gcc,make,dos2unix
 
 %description
@@ -43,10 +43,32 @@ rm -rf %{buildroot}
 chmod 0550 %{_bindir}/nvme-snsd
 chmod 0440 /usr/share/doc/snsd.conf
 chmod 0440 /usr/lib/systemd/system/nvme-snsd.service
+
+if [ ! -f /etc/nvme/snsd.conf ];then
+    mkdir -pv /etc/nvme/
+    cat >/etc/nvme/snsd.conf <<"EOF"
+[BASE]
+    ; The delay time of disconnecting device when net link down. Unit is second.
+    ; The recommended value is 0.
+    --restrain-time = 0
+
+[SW]
+    ; Switching network configuration, mandatory: --host-traddr, --protocol
+    ; If "--host-traddr" is set to "any", other IP addresses cannot be configured for the switching network, All customer networks support SNSD.
+    ; eg: --host-traddr = xxxx | --protocol = roce
+
+[DC]
+    ; Configuration of the directly connected network, mandatory: --host-traddr, --protocol, --traddr
+    ; eg: --host-traddr = xxxx | --traddr = xxxx | --protocol = roce
+
+EOF
+    chmod 0644 /etc/nvme/snsd.conf
+fi
+
 systemctl enable nvme-snsd
 systemctl start nvme-snsd
 
-%postun
+%preun
 systemctl stop nvme-snsd
 systemctl disable nvme-snsd
 
@@ -57,6 +79,9 @@ systemctl disable nvme-snsd
 /usr/lib/systemd/system/nvme-snsd.service
 
 %changelog
+* Thu Aug 31 2023 Guangyan Lv <lvguangyan2@huawei.com> - 1.00.029-3
+- Update rpmbuild spec, fix uninstallation issues for nvme-snsd.
+
 * Sat Jul 30 2022 Ruozhu Li <liruozhu@huawei.com> - 1.00.029-2
 - Update src tar fetch from upstream release.