Add bootstrapping scripts and nix expressions

bootstrap/charts/cert-manager.yaml

@@ -0,0 +1,24 @@
+# Default values for cert-manager.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+prometheus:
+  enabled: true
+  servicemonitor:
+    enabled: true
+    prometheusInstance: default
+    targetPort: 9402
+    path: /metrics
+    interval: 60s
+    scrapeTimeout: 30s
+    labels: {}
+
+webhook:
+  enabled: true
+  replicaCount: 1
+
+cainjector:
+  enabled: true
+