Initial commit.

example/.ruby-gemset

@@ -0,0 +1 @@
+noobernetes

example/.ruby-version

@@ -0,0 +1 @@
+2.3.7

example/Dockerfile

@@ -0,0 +1,11 @@
+FROM ruby:2.3.7
+
+WORKDIR /app
+ADD . /app
+
+RUN cd /app && \
+    bundle install
+
+EXPOSE 4567
+
+CMD ["ruby", "web.rb"]

example/Gemfile

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+
+gem 'sinatra'

example/Gemfile.lock

@@ -0,0 +1,22 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    mustermann (1.0.2)
+    rack (2.0.4)
+    rack-protection (2.0.1)
+      rack
+    sinatra (2.0.1)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.1)
+      tilt (~> 2.0)
+    tilt (2.0.8)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  sinatra
+
+BUNDLED WITH
+   1.16.1

example/manifests/deployment.yaml

@@ -0,0 +1,23 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: dog-tinder
+spec:
+  template:
+    metadata:
+      name: dog-tinder
+      labels:
+        service: dog-tinder
+    spec:
+      containers:
+      - name: dog-tinder-container
+        image: dog-tinder:example
+        resources:
+          requests:
+            cpu: 200m
+        env:
+        - name: POD_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+      restartPolicy: Always

example/manifests/horizontal-pod-autoscaler.yaml

@@ -0,0 +1,12 @@
+apiVersion: autoscaling/v1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: dog-tinder-hpa
+spec:
+  maxReplicas: 10
+  minReplicas: 1
+  scaleTargetRef:
+    apiVersion: extensions/v1beta1
+    kind: Deployment
+    name: dog-tinder
+  targetCPUUtilizationPercentage: 50

example/manifests/service.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    service: dog-tinder
+  name: dog-tinder-service
+spec:
+  type: NodePort
+  ports:
+  - name: dog-tinder-port
+    port: 4000
+    protocol: TCP
+    targetPort: 4567
+    nodePort: 30000
+  selector:
+    service: dog-tinder
+

example/web.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+require 'sinatra'
+
+set :bind, '0.0.0.0'
+
+def find_match_for_dog
+  100.times do |i|
+    100000.downto(1) do |j|
+      Math.sqrt(j) * i / 0.2
+    end
+  end
+end
+
+get '/' do
+  find_match_for_dog
+  "Your dog's match was found by #{ENV['POD_NAME']}"
+end