diff --git a/docs/projects/kubernetes_monitoring/index.md b/docs/projects/kubernetes_monitoring/index.md
index ea7e20d..b30a086 100644
--- a/docs/projects/kubernetes_monitoring/index.md
+++ b/docs/projects/kubernetes_monitoring/index.md
@@ -77,7 +77,9 @@ This helm chart started off with components from multiple open-source projects.
 
     - Promtail
 
-- Prometheus as the metrics collector
+- Prometheus
+
+    - Thanos sidecar _Optional_
 
 - Service monitors
 
diff --git a/templates/Prometheus-prometheus.yaml b/templates/Prometheus-prometheus.yaml
index 66dacd0..c2741b6 100644
--- a/templates/Prometheus-prometheus.yaml
+++ b/templates/Prometheus-prometheus.yaml
@@ -51,4 +51,11 @@ spec:
   serviceMonitorSelector: {}
   storage:
     {{- toYaml .Values.nfc_monitoring.prometheus.affinity | nindent 4 }}
+  {{ if .Values.nfc_monitoring.thanos.sidecar.enabled }}
+  thanos:
+    image: "{{ .Values.nfc_monitoring.thanos.image.name }}:{{ .Values.nfc_monitoring.thanos.image.tag }}"
+    objectStorageConfig:
+      key: thanos.yaml
+      name: thanos-sidecar-config
+  {{ end }}
   version: 2.42.0
diff --git a/templates/Secret-prometheus-sidecar-thanos.yaml b/templates/Secret-prometheus-sidecar-thanos.yaml
new file mode 100644
index 0000000..f212082
--- /dev/null
+++ b/templates/Secret-prometheus-sidecar-thanos.yaml
@@ -0,0 +1,13 @@
+{{ if .Values.nfc_monitoring.thanos.sidecar.enabled }}
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: thanos-sidecar-config
+  namespace: monitoring
+type: Opaque
+stringData:
+  thanos.yaml: |-
+    {{ toYaml .Values.nfc_monitoring.thanos.sidecar.config | nindent 4 }}
+
+{{ end }}
diff --git a/templates/Service-prometheus.yaml b/templates/Service-prometheus.yaml
index c44eef8..fc1ff97 100644
--- a/templates/Service-prometheus.yaml
+++ b/templates/Service-prometheus.yaml
@@ -25,3 +25,35 @@ spec:
     app.kubernetes.io/name: prometheus
     app.kubernetes.io/part-of: {{ $.Chart.Name }}
   sessionAffinity: ClientIP
+
+{{ if .Values.nfc_monitoring.thanos.sidecar.enabled }}
+---
+
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app.kubernetes.io/component: prometheus-sidecar
+    app.kubernetes.io/instance: k8s
+    app.kubernetes.io/name: thanos-sidecar
+    app.kubernetes.io/part-of: {{ $.Chart.Name }}
+    app.kubernetes.io/managed-by: {{ $.Release.Service }}
+    app.kubernetes.io/version: {{ $.Chart.Version }}
+  name: thanos-sidecar
+  namespace: {{ .Values.nfc_monitoring.prometheus.namespace }}
+spec:
+  clusterIP: None
+  ports:
+  - name: grpc
+    port: 10901
+    targetPort: 10901
+  - name: http
+    port: 10902
+    targetPort: 10902
+  selector:
+    app.kubernetes.io/component: prometheus
+    app.kubernetes.io/instance: k8s
+    app.kubernetes.io/name: prometheus
+    app.kubernetes.io/part-of: {{ $.Chart.Name }}
+
+{{ end }}
diff --git a/templates/ServiceMonitor-prometheus.yaml b/templates/ServiceMonitor-prometheus.yaml
index e17d8fb..d1cfce6 100644
--- a/templates/ServiceMonitor-prometheus.yaml
+++ b/templates/ServiceMonitor-prometheus.yaml
@@ -29,3 +29,34 @@ spec:
       app.kubernetes.io/instance: k8s
       app.kubernetes.io/name: prometheus
       app.kubernetes.io/part-of: {{ $.Chart.Name }}
+
+{{ if .Values.nfc_monitoring.thanos.sidecar.enabled }}
+---
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  labels:
+    app.kubernetes.io/component: prometheus-sidecar
+    app.kubernetes.io/instance: thanos-sidecar
+    app.kubernetes.io/name: thanos-sidecar
+    app.kubernetes.io/version: v0.30.2
+  name: thanos-sidecar
+  namespace: {{ .Values.nfc_monitoring.prometheus.namespace }}
+spec:
+  endpoints:
+  - port: http
+    relabelings:
+    - action: replace
+      separator: /
+      sourceLabels:
+      - namespace
+      - pod
+      targetLabel: instance
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: prometheus-sidecar
+      app.kubernetes.io/instance: k8s
+      app.kubernetes.io/name: thanos-sidecar
+      app.kubernetes.io/part-of: {{ $.Chart.Name }}
+
+{{ end }}
\ No newline at end of file
diff --git a/values.yaml b/values.yaml
index b7a4793..a76b175 100644
--- a/values.yaml
+++ b/values.yaml
@@ -66,7 +66,7 @@ nfc_monitoring:
 
   loki:
 
-    enabled: false
+    enabled: true
 
     image: 
       name: grafana/loki
@@ -201,6 +201,25 @@ nfc_monitoring:
             topologyKey: kubernetes.io/hostname
           weight: 10
 
+  thanos:
+    image:
+      name: thanosio/thanos
+      tag: v0.32.3
+
+    # Prometheus thanos sidecar
+    # see: https://thanos.io/tip/components/sidecar.md/
+    sidecar:
+
+      enabled: true
+
+      config:
+        type: S3
+        config:
+          bucket: "thanos-metrics"
+          endpoint: "rook-ceph-rgw-earth.ceph.svc:80"
+          access_key: "7J5NM2MNCDB4T4Y9OKJ5"
+          secret_key: "t9r69RzZdWEBL3NCKiUIpDk6j5625xc6HucusiGG"
+
 
   additions: