!1 Initial Packaging

From: @jingwoo
Reviewed-by: @leizhongkai,@duguhaotian,@caihaomin
Signed-off-by: @caihaomin

coredns.spec

@@ -0,0 +1,67 @@
+%define project github.com/coredns/coredns
+%global debug_package %{nil}
+Name:           coredns
+Version:        1.7.0
+Release:        1.0
+Summary:        CoreDNS is a DNS server/forwarder, written in Go
+License:        Apache-2.0
+URL:            https://coredns.io
+Source0:        https://github.com/%{name}/%{name}/archive/v%{version}.tar.gz
+Source1:        vendor.tar.gz
+
+BuildRequires:  golang >= 1.13
+BuildRequires:  fdupes
+
+%description
+CoreDNS is a fast and flexible DNS server. The key word here is flexible:
+with CoreDNS you are able to do what you want with your DNS data by
+utilizing plugins.
+
+%package help
+Summary:        Help document for the coredns package
+
+%description help
+Help document for the coredns package.
+
+%prep
+%setup -q -a1
+
+%build
+GO_BUILD_PATH=$PWD/_build
+install -m 0755 -vd $(dirname $GO_BUILD_PATH/src/%{project})
+ln -fs $PWD $GO_BUILD_PATH/src/%{project}
+cd $GO_BUILD_PATH/src/%{project}
+export GOPATH=$GO_BUILD_PATH:%{gopath}
+export PATH=$PATH:$GOPATH/bin
+go build -mod=vendor -v -buildmode=pie -o coredns
+
+# It is not recommended to test in the build environment,
+# because some testcases will be affected by the factors of
+# the build environment and fail.
+# It is recommended to execute the use cases manually
+
+%install
+# Binaries
+install -D -m 0755 coredns %{buildroot}%{_sbindir}/coredns
+# Manpages
+install -d %{buildroot}/%{_mandir}/man1
+install -m 0644 man/coredns*.1 %{buildroot}/%{_mandir}/man1
+install -d %{buildroot}/%{_mandir}/man5
+install -m 0644 man/corefile*.5 %{buildroot}/%{_mandir}/man5
+install -d %{buildroot}/%{_mandir}/man7
+install -m 0644 man/coredns-*.7 %{buildroot}/%{_mandir}/man7
+
+%fdupes %{buildroot}/%{_prefix}
+
+%files
+%{_sbindir}/coredns
+%license LICENSE
+
+%files help
+%{_mandir}/man1/coredns*
+%{_mandir}/man5/corefile*
+%{_mandir}/man7/coredns-*
+
+%changelog
+* Thu Mar 11 2021 WuJing <wujing50@huawei.com>
+- Initial Packaging