diff --git a/example/kubernetes/using-secrets/Makefile b/example/kubernetes/using-secrets/Makefile
new file mode 100644
index 0000000..1f98aad
--- /dev/null
+++ b/example/kubernetes/using-secrets/Makefile
@@ -0,0 +1,14 @@
+ldap-secret.yaml: example
+	$(eval PWD := $(shell pwd -P))
+	$(eval ENV_DIR := $(shell echo ${PWD}/environment))
+	ENV_YAML=$(shell ${ENV_DIR}/file-to-base64.sh ${ENV_DIR}/my-env.yaml) \
+	ENV_STARTUP_YAML=$(shell ${ENV_DIR}/file-to-base64.sh ${ENV_DIR}/my-env.startup.yaml) \
+	envsubst < ldap-secret.tpl > ldap-secret.yaml
+
+example: environment/my-env.startup.yaml environment/my-env.yaml
+
+environment/my-env.startup.yaml:
+	cd environment ; cp my-env.startup.yaml.example my-env.startup.yaml
+
+environment/my-env.yaml:
+	cd environment ; cp my-env.yaml.example my-env.yaml
diff --git a/example/kubernetes/using-secrets/environment/my-env.startup.yaml b/example/kubernetes/using-secrets/environment/my-env.startup.yaml.example
similarity index 100%
rename from example/kubernetes/using-secrets/environment/my-env.startup.yaml
rename to example/kubernetes/using-secrets/environment/my-env.startup.yaml.example
diff --git a/example/kubernetes/using-secrets/environment/my-env.yaml b/example/kubernetes/using-secrets/environment/my-env.yaml.example
similarity index 100%
rename from example/kubernetes/using-secrets/environment/my-env.yaml
rename to example/kubernetes/using-secrets/environment/my-env.yaml.example
diff --git a/example/kubernetes/using-secrets/ldap-secret.tpl b/example/kubernetes/using-secrets/ldap-secret.tpl
new file mode 100644
index 0000000..01f5acc
--- /dev/null
+++ b/example/kubernetes/using-secrets/ldap-secret.tpl
@@ -0,0 +1,11 @@
+apiVersion: "v1"
+kind: "List"
+items:
+  - kind: "Secret"
+    apiVersion: "v1"
+    metadata:
+      name: "ldap-secret"
+    data:
+      # files in environment/* converted into base64 with file-to-base64.sh
+      env.yaml: "$ENV_YAML"
+      env.startup.yaml: "$ENV_STARTUP_YAML"
diff --git a/example/kubernetes/using-secrets/ldap-secret.yaml b/example/kubernetes/using-secrets/ldap-secret.yaml
deleted file mode 100644
index 85a62aa..0000000
--- a/example/kubernetes/using-secrets/ldap-secret.yaml
+++ /dev/null
@@ -1,11 +0,0 @@
-apiVersion: "v1"
-kind: "List"
-items:
-  - kind: "Secret"
-    apiVersion: "v1"
-    metadata:
-      name: "ldap-secret"
-    data:
-      # files in environment/* converted into base64 with file-to-base64.sh
-      env.yaml: "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"
-      env.startup.yaml: "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"