diff --git a/ruby/Dockerfile b/ruby/Dockerfile
new file mode 100644
index 0000000..e252565
--- /dev/null
+++ b/ruby/Dockerfile
@@ -0,0 +1,5 @@
+FROM ruby:bullseye
+
+COPY ./app.rb /tmp
+
+CMD ["ruby", "/tmp/app.rb"]
diff --git a/ruby/Makefile b/ruby/Makefile
new file mode 100644
index 0000000..c94c62e
--- /dev/null
+++ b/ruby/Makefile
@@ -0,0 +1,3 @@
+.PHONY: build
+build:
+	docker build -t parca-demo:ruby .
diff --git a/ruby/app.rb b/ruby/app.rb
new file mode 100644
index 0000000..4ae95dd
--- /dev/null
+++ b/ruby/app.rb
@@ -0,0 +1,47 @@
+require 'prime'
+require 'fileutils'
+
+STDOUT.sync = true
+
+def a(n)
+    b(n)
+end
+
+def b(n)
+    ## Make some calculations
+    i = 100_000
+    while i > 0 do
+        Prime.prime?(i)
+        i -= 1
+    end
+    c(n)
+end
+
+def c(n)
+    ## Create a new file
+    File.open("test.txt", "w") do |f|
+        f.write("Hello, world!")
+    end
+    ## Pass new file to d
+    d("test.txt")
+end
+
+def d(file)
+    ## Read file
+    File.open(file, "r") do |f|
+        ## Print file contents and time
+        puts f.read + " :: " + Time.now.to_s
+    end
+    f(file)
+end
+
+def f(file)
+    ## Delete file
+    File.delete(file)
+end
+
+## Infinte loop
+while true
+    sleep(1)
+    a(1)
+end
diff --git a/ruby/deployment.yaml b/ruby/deployment.yaml
new file mode 100644
index 0000000..53ce569
--- /dev/null
+++ b/ruby/deployment.yaml
@@ -0,0 +1,24 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app.kubernetes.io/name: demo-ruby
+  name: ruby
+  namespace: parca
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: demo-ruby
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: demo-ruby
+    spec:
+      containers:
+      - image: parca-demo:ruby
+        name: python
+        resources:
+          limits:
+            cpu: "100m"
+            memory: "256Mi"