diff --git a/alveolus/loki-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_loki-simple.rolebinding.yaml b/alveolus/loki-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_loki-simple.rolebinding.yaml
index 0b58786b..227e3e5d 100644
--- a/alveolus/loki-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_loki-simple.rolebinding.yaml
+++ b/alveolus/loki-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_loki-simple.rolebinding.yaml
@@ -22,7 +22,7 @@ metadata:
 subjects:
   - kind: ServiceAccount
     name: promtail-serviceaccount
-    namespace: default
+    namespace: "{{loki-simple.namespace:-{{bundlebee-kubernetes-namespace}}}}"
 roleRef:
   kind: ClusterRole
   name: promtail-clusterrole
diff --git a/alveolus/prometheus-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_prometheus-simple.clusterrolebinding.yaml b/alveolus/prometheus-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_prometheus-simple.clusterrolebinding.yaml
index b0aa5569..c47c5636 100644
--- a/alveolus/prometheus-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_prometheus-simple.clusterrolebinding.yaml
+++ b/alveolus/prometheus-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_prometheus-simple.clusterrolebinding.yaml
@@ -25,5 +25,5 @@ roleRef:
   name: prometheus
 subjects:
   - kind: ServiceAccount
-    name: default
-    namespace: default
+    name: "{{prometheus-simple.serviceaccount:-default}}"
+    namespace: "{{prometheus-simple.namespace:-{{bundlebee-kubernetes-namespace}}}}"
diff --git a/alveolus/prometheus-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_prometheus-simple.configmap.yaml b/alveolus/prometheus-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_prometheus-simple.configmap.yaml
index a9c31907..d446fc79 100644
--- a/alveolus/prometheus-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_prometheus-simple.configmap.yaml
+++ b/alveolus/prometheus-simple/src/main/resources/bundlebee/kubernetes/io.yupiik.alveoli_prometheus-simple.configmap.yaml
@@ -24,8 +24,8 @@ metadata:
 data:
   prometheus.yml: |
     global:
-      scrape_interval: 5s
-      evaluation_interval: 5s
+      scrape_interval: {{prometheus-simple.scrape_internal:-{{prometheus-simple.internal:-5s}}}}
+      evaluation_interval: {{prometheus-simple.evaluation_interval:-{{prometheus-simple.internal:-5s}}}}
     rule_files:
       - /etc/prometheus/prometheus.rules
     alerting:
diff --git a/alveolus/prometheus-simple/src/main/resources/bundlebee/manifest.json b/alveolus/prometheus-simple/src/main/resources/bundlebee/manifest.json
index 44732c42..795f43b0 100644
--- a/alveolus/prometheus-simple/src/main/resources/bundlebee/manifest.json
+++ b/alveolus/prometheus-simple/src/main/resources/bundlebee/manifest.json
@@ -26,6 +26,22 @@
         }
       ],
       "placeholdersDoc": [
+        {
+          "name": "prometheus-simple.serviceaccount",
+          "description": "Name of prometheus service account - where cluster role will be bound. Note that we use default by default for simplicity but in a real cluster it can make sense to create a dedicated service account.."
+        },
+        {
+          "name": "prometheus-simple.internal",
+          "description": "Default for evaluation and scrape interval in prometheus configuration if not overridden by the specific placeholders."
+        },
+        {
+          "name": "prometheus-simple.evaluation_interval",
+          "description": "Default evaluation interval in prometheus configuration."
+        },
+        {
+          "name": "prometheus-simple.scrape_internal",
+          "description": "Default scrape interval in prometheus configuration."
+        },
         {
           "name": "prometheus-simple.image",
           "description": "The image to use."