feature: adding kubernetes

.gitignore

@@ -36,4 +36,6 @@ override.tf.json
 
 # Ignore CLI configuration files
 .terraformrc
-terraform.rc
+terraform.rc
+
+data/*

Makefile

@@ -1,2 +1,5 @@
 dev:
-	air
+	air
+
+install:
+	go mod tidy

README.md

@@ -103,6 +103,22 @@ The documentation can be founded at the path `/docs/swagger.yaml` or accessing t
 
 ## Infrastructure
 
+[Requirements Infrastructure](https://github.com/pangolin-do-golang/tech-challenge/blob/main/terraform/README.md)
 
-[Requierments Infrastructure](https://github.com/pangolin-do-golang/tech-challenge/blob/main/terraform/README.md)
+## Kubernetes
 
+The Kubernetes templates are located at the `/deploy/k8s` folder, you can use it to create a local k8s setup with minikube
+
+The order of execution is:
+1. namespaces
+2. secret > you should update the secret value with the database password
+3. deployment
+4. hpa
+5. secret
+
+
+You can forward the port with the following command:
+
+```bash
+kubectl port-forward svc/tech-challenge-service 4000:80 -n dev
+```

deploy/k8s/deployment.yaml

@@ -0,0 +1,67 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tech-challenge-deployment
+  labels:
+    app: tech-challenge
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: tech-challenge
+  template:
+    metadata:
+      labels:
+        app: tech-challenge
+    spec:
+      containers:
+        - name: tech-challenge-container
+          image: ghcr.io/pangolin-do-golang/tech-challenge:7c14309
+          ports:
+            - containerPort: 8080
+
+          env:
+            - name: DB_USERNAME
+              value: postgres.jhwmlvbsmtyluoccjabw
+
+            - name: DB_HOST
+              value: aws-0-sa-east-1.pooler.supabase.com
+
+            - name: DB_NAME
+              value: postgres
+
+            - name: DB_PORT
+              value: "6543"
+
+            - name: DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: db-password-secret
+                  key: db-password
+
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: 8080
+            initialDelaySeconds: 30
+            periodSeconds: 10
+            timeoutSeconds: 5
+            failureThreshold: 3
+            successThreshold: 1
+
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: 8080
+            initialDelaySeconds: 10
+            periodSeconds: 5
+            timeoutSeconds: 3
+            failureThreshold: 3
+            successThreshold: 1
+          resources:
+            requests:
+              cpu: "100m"
+              memory: "128Mi"
+            limits:
+              cpu: "500m"
+              memory: "512Mi"

deploy/k8s/hpa.yaml

@@ -0,0 +1,18 @@
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: tech-challenge-hpa
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: tech-challenge-deployment
+  minReplicas: 1
+  maxReplicas: 5
+  metrics:
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: 50

deploy/k8s/namespaces.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: dev
+
+---
+
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: prd

deploy/k8s/secret.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: db-password-secret
+type: Opaque
+data:
+  db-password: bXlzZWN1cmVwYXNzd29yZA==

deploy/k8s/service.yaml

@@ -0,0 +1,11 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: tech-challenge-service
+spec:
+  selector:
+    app: tech-challenge
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 8080