Install grafana-piechart-panel plugin
diff --git a/grafana/server/plugin/piechart.yml b/grafana/server/plugin/piechart.yml
new file mode 100644
index 0000000..090872c
--- /dev/null
+++ b/grafana/server/plugin/piechart.yml
@@ -0,0 +1,6 @@
+parameters:
+  grafana:
+    server:
+      plugins:
+        grafana-piechart-panel:
+          enabled: true