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diff --git a/alertmanager.default b/alertmanager.default
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diff --git a/alertmanager.service b/alertmanager.service
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+++ b/alertmanager.service
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+# -*- mode: conf -*-
+
+[Unit]
+Description=Prometheus Alertmanager.
+Documentation=https://github.com/prometheus/alertmanager
+After=network.target
+
+[Service]
+EnvironmentFile=-/etc/default/alertmanager
+User=prometheus
+ExecStart=/usr/bin/alertmanager \
+          --config.file=/etc/prometheus/alertmanager.yml \
+          --storage.path=/var/lib/prometheus/alertmanager \
+          $ALERTMANAGER_OPTS
+ExecReload=/bin/kill -HUP $MAINPID
+Restart=always
+LimitNOFILE=65536
+
+[Install]
+WantedBy=multi-user.target
diff --git a/alertmanager.spec b/alertmanager.spec
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+++ b/alertmanager.spec
@@ -0,0 +1,72 @@
+%define debug_package %{nil}
+
+Name:    alertmanager
+Version: 0.21.0
+Release: 2%{?dist}
+Summary: Prometheus Alertmanager.
+License: ASL 2.0
+URL:     https://github.com/prometheus/%{name}
+
+%ifarch aarch64
+%global hostarch  arm64
+%endif
+%ifarch x86_64
+%global hostarch  amd64
+%endif
+
+Source0: https://github.com/prometheus/%{name}/releases/download/v%{version}/%{name}-%{version}.linux-%{hostarch}.tar.gz
+Source1: %{name}.service
+Source2: %{name}.default
+
+%{?systemd_requires}
+Requires(pre): shadow-utils
+
+%description
+
+The Alertmanager handles alerts sent by client applications such as the
+Prometheus server. It takes care of deduplicating, grouping, and routing them to
+the correct receiver integration such as email, PagerDuty, or OpsGenie. It also
+takes care of silencing and inhibition of alerts.
+
+%prep
+%setup -q -n %{name}-%{version}.linux-%{hostarch}
+
+%build
+/bin/true
+
+%install
+mkdir -vp %{buildroot}%{_sharedstatedir}/prometheus
+install -D -m 644 alertmanager.yml %{buildroot}%{_sysconfdir}/prometheus/%{name}.yml
+install -D -m 755 %{name} %{buildroot}%{_bindir}/%{name}
+install -D -m 755 amtool %{buildroot}%{_bindir}/amtool
+install -D -m 644 %{SOURCE1} %{buildroot}%{_unitdir}/%{name}.service
+install -D -m 644 %{SOURCE2} %{buildroot}%{_sysconfdir}/default/%{name}
+
+%pre
+getent group prometheus >/dev/null || groupadd -r prometheus
+getent passwd prometheus >/dev/null || \
+  useradd -r -g prometheus -d %{_sharedstatedir}/prometheus -s /sbin/nologin \
+          -c "Prometheus services" prometheus
+exit 0
+
+%post
+%systemd_post %{name}.service
+
+%preun
+%systemd_preun %{name}.service
+
+%postun
+%systemd_postun %{name}.service
+
+%files
+%defattr(-,root,root,-)
+%config(noreplace) %{_sysconfdir}/prometheus/%{name}.yml
+%{_bindir}/%{name}
+%{_bindir}/amtool
+%{_unitdir}/%{name}.service
+%config(noreplace) %{_sysconfdir}/default/%{name}
+%dir %attr(755, prometheus, prometheus)%{_sharedstatedir}/prometheus
+
+%changelog
+* Tue Aug 11 2020 houjian <houjian@kylinos.cn> - 0.21.0-2
+- Package init
\ No newline at end of file