dashboard: support prometheus storage.tsdb.retention.time parameter

This commit adds the parameter `--storage.tsdb.retention.time` to the
prometheus systemd unit template.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1928000
Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit b60c61ce450db5b755744c491b4dfd1ce70fb124)

diff --git a/group_vars/all.yml.sample b/group_vars/all.yml.sample
index 9efefa0dc71cd2d22ec042972113031948b22d93..0a06b4b71edba8dce1e223afebe41429c056081a 100644 (file)
--- a/group_vars/all.yml.sample
+++ b/group_vars/all.yml.sample
@@ -711,6 +711,9 @@ dummy:
 #prometheus_user_id: '65534'  # This is the UID used by the prom/prometheus container image
 #prometheus_port: 9092
 #prometheus_conf_overrides: {}
+# Uncomment out this variable if you need to customize the retention period for prometheus storage.
+# set it to '30d' if you want to retain 30 days of data.
+#prometheus_storage_tsdb_retention_time: 15d
 #alertmanager_container_image: "docker.io/prom/alertmanager:v0.16.2"
 #alertmanager_container_cpu_period: 100000
 #alertmanager_container_cpu_cores: 2

diff --git a/group_vars/rhcs.yml.sample b/group_vars/rhcs.yml.sample
index 9419f6161b27abf12d5e2fdb1170c51136089bd3..53999471825a570c9d7837b0f94d7b587372a699 100644 (file)
--- a/group_vars/rhcs.yml.sample
+++ b/group_vars/rhcs.yml.sample
@@ -711,6 +711,9 @@ prometheus_container_image: registry.redhat.io/openshift4/ose-prometheus:v4.6
 #prometheus_user_id: '65534'  # This is the UID used by the prom/prometheus container image
 #prometheus_port: 9092
 #prometheus_conf_overrides: {}
+# Uncomment out this variable if you need to customize the retention period for prometheus storage.
+# set it to '30d' if you want to retain 30 days of data.
+#prometheus_storage_tsdb_retention_time: 15d
 alertmanager_container_image: registry.redhat.io/openshift4/ose-prometheus-alertmanager:v4.6
 #alertmanager_container_cpu_period: 100000
 #alertmanager_container_cpu_cores: 2

diff --git a/roles/ceph-defaults/defaults/main.yml b/roles/ceph-defaults/defaults/main.yml
index c4ec5f9ae4130b1e9241cc76a294c765812be3b3..b8d7025cd33637717d2ab1f6abfe726ed1dc1523 100644 (file)
--- a/roles/ceph-defaults/defaults/main.yml
+++ b/roles/ceph-defaults/defaults/main.yml
@@ -703,6 +703,9 @@ prometheus_conf_dir: /etc/prometheus
 prometheus_user_id: '65534'  # This is the UID used by the prom/prometheus container image
 prometheus_port: 9092
 prometheus_conf_overrides: {}
+# Uncomment out this variable if you need to customize the retention period for prometheus storage.
+# set it to '30d' if you want to retain 30 days of data.
+#prometheus_storage_tsdb_retention_time: 15d
 alertmanager_container_image: "docker.io/prom/alertmanager:v0.16.2"
 alertmanager_container_cpu_period: 100000
 alertmanager_container_cpu_cores: 2

diff --git a/roles/ceph-prometheus/templates/prometheus.service.j2 b/roles/ceph-prometheus/templates/prometheus.service.j2
index 601f19a1db9b4f85749c14d2a2f4f332142bd922..3f2ed5602af483df1e3286bdc656113ea8a75167 100644 (file)
--- a/roles/ceph-prometheus/templates/prometheus.service.j2
+++ b/roles/ceph-prometheus/templates/prometheus.service.j2
@@ -31,6 +31,9 @@ ExecStart=/usr/bin/{{ container_binary }} run --rm --name=prometheus \
   {{ prometheus_container_image }} \
   --config.file=/etc/prometheus/prometheus.yml \
   --storage.tsdb.path=/prometheus \
+{% if prometheus_storage_tsdb_retention_time is defined %}
+  --storage.tsdb.retention.time={{ prometheus_storage_tsdb_retention_time }} \
+{% endif %}
   --web.external-url=http://{{ ansible_facts['fqdn'] }}:{{ prometheus_port }}/ \
   --web.listen-address={{ grafana_server_addr }}:{{ prometheus_port }}
 {% if container_binary == 'podman' %}