show any files inside /secrets folder

app.rb

@@ -5,6 +5,8 @@ class App < Sinatra::Base
   set :public_folder, File.dirname(__FILE__) + '/public'
 
   get "/" do
-    erb :index
+    secrets_base_dir = ENV["SECRETS_BASE_DIR"]
+    secrets_base_dir ||= "/tmp/secrets"
+    erb :index, locals: {secrets_base_dir: secrets_base_dir}
   end
 end

templates/deployment.yaml

@@ -27,8 +27,22 @@ spec:
             - name: http
               containerPort: 8080
               protocol: TCP
-          {{- if .Values.database.service.class }}
+          livenessProbe:
+            httpGet:
+              path: /
+              port: http
+          readinessProbe:
+            httpGet:
+              path: /
+              port: http
+      {{- if .Values.database.service.class }}
+          volumeMounts:
+          - name: db-credentials
+            mountPath: "/secrets/db-credentials"
+            readOnly: true
           env:
+          - name: SECRETS_BASE_DIR
+            value: /secrets
           - name: DATABASE_URL
             valueFrom:
               secretKeyRef:
@@ -49,16 +63,6 @@ spec:
               secretKeyRef:
                 name: {{ template "ruby-with-binding.fullname" . }}-db-secret
                 key: password
-          {{- end }}
-          livenessProbe:
-            httpGet:
-              path: /
-              port: http
-          readinessProbe:
-            httpGet:
-              path: /
-              port: http
-      {{- if .Values.database.service.class }}
       volumes:
         - name: db-credentials
           secret:

views/index.erb

@@ -12,8 +12,13 @@
   <h1>View environment vars and secret files</h1>
   <p>This little app will show environment variables and files mounted under <code>/secret</code> folder.</p>
   <h2>Secrets</h2>
+  <p>List of files and their contents within secrets directory <code><%= secrets_base_dir %></code>:</p>
   <pre>
-/secret/database/url - postgres://...
+<%=
+Dir["#{secrets_base_dir}/**/*"].map do |path|
+path + "=" + File.read(path)
+end.join("\n")
+%>
   </pre>
   <h2>Environment Variables</h2>
   <pre>