diff --git a/rpmbuild/SOURCES/prometheus.env b/rpmbuild/SOURCES/prometheus.env
new file mode 100644
index 0000000..82ee86e
--- /dev/null
+++ b/rpmbuild/SOURCES/prometheus.env
@@ -0,0 +1,5 @@
+CONFIG_FILE=/opt/prometheus/etc/prometheus.yaml
+LISTEN_ADDRESS=0.0.0.0:9090
+LOG_LEVEL=info
+TSDB_PATH=/srv/prometheus
+PROMETHEUS_OPTIONS=
diff --git a/rpmbuild/SOURCES/prometheus.service b/rpmbuild/SOURCES/prometheus.service
index 4da0b6a..a8242eb 100644
--- a/rpmbuild/SOURCES/prometheus.service
+++ b/rpmbuild/SOURCES/prometheus.service
@@ -6,8 +6,9 @@ After=network-online.target
 [Service]
 Restart=always
 Type=simple
-ExecStart=/opt/prometheus/bin/prometheus
-WorkingDirectory=/opt/prometheus/etc
+EnvironmentFile=/opt/prometheus/etc/prometheus.env
+ExecStart=/opt/prometheus/bin/prometheus --storage.tsdb.path=${TSDB_PATH} --config.file=${CONFIG_FILE} --web.listen-address=${LISTEN_ADDRESS} --log.level=${LOG_LEVEL} $PROMETHEUS_OPTIONS
+WorkingDirectory=/srv/prometheus
 User=prometheus
 Group=itix-svc
 
diff --git a/rpmbuild/SOURCES/prometheus.yaml b/rpmbuild/SOURCES/prometheus.yaml
new file mode 100644
index 0000000..4a6f9bb
--- /dev/null
+++ b/rpmbuild/SOURCES/prometheus.yaml
@@ -0,0 +1,4 @@
+global:
+  scrape_interval:      15s
+  evaluation_interval:  15s
+
diff --git a/rpmbuild/SPECS/prometheus.spec b/rpmbuild/SPECS/prometheus.spec
index 07bd934..55fd904 100644
--- a/rpmbuild/SPECS/prometheus.spec
+++ b/rpmbuild/SPECS/prometheus.spec
@@ -5,6 +5,8 @@ Summary:    The Prometheus monitoring system and time series database.
 License:    Apache-2.0
 Source0:    https://github.com/prometheus/%{name}/releases/download/v%{version}/%{name}-%{version}.linux-amd64.tar.gz
 Source1:    prometheus.service
+Source2:    prometheus.yaml
+Source3:    prometheus.env
 ExclusiveArch: x86_64
 Requires(pre): shadow-utils
 BuildRequires: systemd
@@ -24,6 +26,8 @@ trigger alerts when specified conditions are observed.
 %prep
 %setup -q -n %{name}-%{version}.linux-amd64
 cp %{S:1} %{name}.service
+cp %{S:2} %{name}.yaml
+cp %{S:3} %{name}.env
 
 %build
 rm NOTICE
@@ -35,6 +39,8 @@ install -D promtool %{buildroot}/opt/%{name}/bin/promtool
 install -D -m 0644 consoles/* -t %{buildroot}/opt/%{name}/bin/consoles/
 install -D -m 0644 console_libraries/* -t %{buildroot}/opt/%{name}/bin/console_libraries/
 install -D -m 0644 prometheus.yml %{buildroot}/opt/%{name}/etc/prometheus.yaml
+install -D -m 0600 %{name}.yaml %{buildroot}/opt/%{name}/etc/%{name}.yaml
+install -D -m 0644 %{name}.env %{buildroot}/opt/%{name}/etc/%{name}.env
 install -D -m 0644 %{name}.service %{buildroot}/%{_unitdir}/%{name}.service
 
 %files
@@ -44,12 +50,13 @@ install -D -m 0644 %{name}.service %{buildroot}/%{_unitdir}/%{name}.service
 %dir /opt/%{name}/bin/consoles/
 %dir /opt/%{name}/bin/console_libraries/
 %dir /opt/%{name}/etc/
-%dir /srv/%{name}/
-%attr(0644, root, root) /opt/%{name}/bin/prometheus
-%attr(0644, root, root) /opt/%{name}/bin/promtool
 /opt/%{name}/bin/consoles/*
 /opt/%{name}/bin/console_libraries/*
-%config /opt/%{name}/etc/prometheus.yaml
+%attr(0700, prometheus, itix-svc) %dir /srv/%{name}/
+%attr(0755, root, root) /opt/%{name}/bin/prometheus
+%attr(0755, root, root) /opt/%{name}/bin/promtool
+%attr(0600, prometheus, itix-svc) %config(noreplace) /opt/%{name}/etc/%{name}.yaml
+%config(noreplace) /opt/%{name}/etc/%{name}.env
 %{_unitdir}/%{name}.service
 
 %pre
@@ -61,5 +68,3 @@ getent passwd %{name} >/dev/null || useradd -r -g itix-svc \
 exit 0
 
 %changelog
-* Mon Feb 22 2021 Nicolas MASSE <nicolas.masse@itix.fr> - 2.25.0-itix1
-- First release