fix: update RPM spec using rpmbuild (#10979)

To test this PR

> rpmbuild --undefine=_disable_source_fetch -ba minio.spec

minio.spec

@@ -1,83 +1,64 @@
-%define         tag     RELEASE.2017-04-25T01-27-49Z
+%define         tag     RELEASE.2020-11-25T22-36-25Z
 %define         subver  %(echo %{tag} | sed -e 's/[^0-9]//g')
-# git fetch https://github.com/minio/minio.git refs/tags/RELEASE.2017-02-16T01-47-30Z
+# git fetch https://github.com/minio/minio.git refs/tags/RELEASE.2020-11-25T22-36-25Z
 # git rev-list -n 1 FETCH_HEAD
-%define         commitid        83abb310b4ce3a0dfc6d7faf78e33cb6f9132cfe
-Summary:        Cloud Storage Server.
+%define         commitid        91130e884b5df59d66a45a0aad4f48db88f5ca63
+Summary:        High Performance, Kubernetes Native Object Storage.
 Name:           minio
 Version:        0.0.%{subver}
 Release:        1
 Vendor:         MinIO, Inc.
 License:        Apache v2.0
 Group:          Applications/File
-Source0:        https://github.com/minio/minio/archive/%{tag}.tar.gz
+Source0:        https://dl.minio.io/server/minio/release/linux-amd64/archive/minio.%{tag}
+Source1:        https://raw.githubusercontent.com/minio/minio-service/master/linux-systemd/distributed/minio.service
 URL:            https://www.min.io/
-BuildRequires:  golang >= 1.7
+Requires(pre):  /usr/sbin/useradd, /usr/bin/getent
+Requires(postun): /usr/sbin/userdel
 BuildRoot:      %{tmpdir}/%{name}-%{version}-root-%(id -u -n)
 
 ## Disable debug packages.
 %define         debug_package %{nil}
 
-## Go related tags.
-%define         gobuild(o:) go build -ldflags "${LDFLAGS:-}" %{?**};
-%define         gopath          %{_libdir}/golang
-%define         import_path     github.com/minio/minio
-
 %description
-MinIO is an object storage server released under Apache License v2.0.
-It is compatible with Amazon S3 cloud storage service. It is best
-suited for storing unstructured data such as photos, videos, log
-files, backups and container / VM images. Size of an object can
-range from a few KBs to a maximum of 5TiB.
-
-%prep
-%setup -qc
-mv %{name}-*/* .
-
-install -d src/$(dirname %{import_path})
-ln -s ../../.. src/%{import_path}
-
-%build
-export GOPATH=$(pwd)
+MinIO is a High Performance Object Storage released under Apache License v2.0.
+It is API compatible with Amazon S3 cloud storage service. Use MinIO to build
+high performance infrastructure for machine learning, analytics and application
+data workloads.
 
-# setup flags like 'go run buildscripts/gen-ldflags.go' would do
-tag=%{tag}
-version=${tag#RELEASE.}
-commitid=%{commitid}
-scommitid=$(echo $commitid | cut -c1-12)
-prefix=%{import_path}/cmd
+%pre
+/usr/bin/getent group minio-user || /usr/sbin/groupadd -r minio-user
+/usr/bin/getent passwd minio-user || /usr/sbin/useradd -r -d /etc/minio -s /sbin/nologin minio-user
 
-LDFLAGS="
--X $prefix.Version=$version
--X $prefix.ReleaseTag=$tag
--X $prefix.CommitID=$commitid
--X $prefix.ShortCommitID=$scommitid
-"
+%install
+rm -rf $RPM_BUILD_ROOT
+install -d $RPM_BUILD_ROOT/etc/minio/certs
+install -d $RPM_BUILD_ROOT/etc/systemd/system
+install -d $RPM_BUILD_ROOT/etc/default
+install -d $RPM_BUILD_ROOT/usr/local/bin
 
-%gobuild -o %{name} %{import_path}
+cat <<EOF >> $RPM_BUILD_ROOT/etc/default/minio
+# Remote volumes to be used for MinIO server.
+# Uncomment line before starting the server.
+# MINIO_VOLUMES=http://node{1...6}/export{1...32}
 
-# check that version set properly
-./%{name} version | tee v
+# Root credentials for the server.
+# Uncomment both lines before starting the server.
+# MINIO_ACCESS_KEY=Server-Access-Key
+# MINIO_SECRET_KEY=Server-Secret-Key
 
-#Version: 2016-09-11T17-42-18Z
-#Release-Tag: RELEASE.2016-09-11T17-42-18Z
-#Commit-ID: 85e2d886bcb005d49f3876d6849a2b5a55e03cd3
-v=$(awk '/Version:/{print $2}' v)
-test "$v" = $version
-v=$(awk '/Release-Tag:/{print $2}' v)
-test "$v" = $tag
-v=$(awk '/Commit-ID:/{print $2}' v)
-test "$v" = $commitid
+MINIO_OPTS="--certs-dir /etc/minio/certs"
+EOF
 
-%install
-rm -rf $RPM_BUILD_ROOT
-install -d $RPM_BUILD_ROOT%{_sbindir}
-install -p %{name} $RPM_BUILD_ROOT%{_sbindir}
+install %{_sourcedir}/minio.service $RPM_BUILD_ROOT/etc/systemd/system/minio.service
+install -p %{_sourcedir}/%{name}.%{tag} $RPM_BUILD_ROOT/usr/local/bin/minio
 
 %clean
 rm -rf $RPM_BUILD_ROOT
 
 %files
 %defattr(644,root,root,755)
-%doc README.md README_ZH.md
-%attr(755,root,root) %{_sbindir}/minio
+%attr(644,root,root) /etc/default/minio
+%attr(644,root,root) /etc/systemd/system/minio.service
+%attr(644,minio-user,minio-user) /etc/minio
+%attr(755,minio-user,minio-user) /usr/local/bin/minio