diff --git a/local/remote_write/prometheus.yaml b/local/remote_write/prometheus.yaml
index 879e5b8..4c66335 100644
--- a/local/remote_write/prometheus.yaml
+++ b/local/remote_write/prometheus.yaml
@@ -15,3 +15,9 @@ remote_write:
     remote_timeout: "30s"
     send_exemplars: false
     follow_redirects: true
+
+    write_relabel_configs:
+      - source_labels: [instance]
+        regex: '(.+)'
+        target_label: instance
+        replacement: mylabel
diff --git a/prometheus_extrapolation.png b/prometheus_extrapolation.png
new file mode 100644
index 0000000..686ad86
Binary files /dev/null and b/prometheus_extrapolation.png differ
diff --git a/prometheus_extrapolation_solution.png b/prometheus_extrapolation_solution.png
new file mode 100644
index 0000000..d38b1c6
Binary files /dev/null and b/prometheus_extrapolation_solution.png differ
diff --git a/server/configuration/prometheus.yaml b/server/configuration/prometheus.yaml
index 8347909..7426f17 100644
--- a/server/configuration/prometheus.yaml
+++ b/server/configuration/prometheus.yaml
@@ -7,6 +7,9 @@ scrape_configs:
 
     static_configs:
       - targets: ["localhost:9090"] # scrape prometheus itself
+        labels:
+          backfill: 'false'
+
   
   - job_name: "android phones"
     proxy_url: "http://pushprox:8080" #TODO add mobile phones here
@@ -16,3 +19,5 @@ scrape_configs:
       - targets: [
           "test.example.com"
         ]
+        labels:
+          backfill: 'false'