exposed loki retention period

Author: wtripp180901

ansible/roles/kube_prometheus_stack/defaults/main/helm.yml

@@ -202,7 +202,7 @@ kube_prometheus_stack_loki_release_values:
       compactor:
         retention_enabled: true
       limits_config:
-        retention_period: 72h
+        retention_period: "{{ kube_prometheus_stack_loki_retention_period }}"
     persistence:
       enabled: true
       selector:

ansible/roles/kube_prometheus_stack/defaults/main/main.yml

@@ -26,6 +26,7 @@ kube_prometheus_stack_loki_test_pod_tag: 1.8.2
 
 kube_prometheus_stack_loki_data_dir: "{{ appliances_state_dir }}/loki"
 kube_prometheus_stack_loki_persistence_size: "10Gi"
+kube_prometheus_stack_loki_retention_period: "72h"
 
 control_ip: "{{ hostvars[groups['control'].0].ansible_host }}"