feat: dodaj Kubernetes manifeste za FastAPI + Postgres

manifests/app/deployment.yaml

@@ -0,0 +1,54 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: fastapi-api
+  namespace: student-martabulic
+  annotations:
+    argocd.argoproj.io/sync-wave: "1"   # deploy NAKON baze
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: fastapi-api
+  template:
+    metadata:
+      labels:
+        app: fastapi-api
+    spec:
+      containers:
+        - name: fastapi-api
+          image: dvasic/fastapi-todo-api:1.0
+          ports:
+            - containerPort: 8000
+          env:
+            - name: DATABASE_HOST
+              valueFrom:
+                configMapKeyRef:
+                  name: fastapi-config
+                  key: DATABASE_HOST
+            - name: DATABASE_PORT
+              valueFrom:
+                configMapKeyRef:
+                  name: fastapi-config
+                  key: DATABASE_PORT
+            - name: POSTGRES_USER
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-secret
+                  key: POSTGRES_USER
+            - name: POSTGRES_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-secret
+                  key: POSTGRES_PASSWORD
+            - name: POSTGRES_DB
+              valueFrom:
+                secretKeyRef:
+                  name: postgres-secret
+                  key: POSTGRES_DB
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: 8000
+            initialDelaySeconds: 15
+            periodSeconds: 5

manifests/app/ingress.yaml

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+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: fastapi-api-ingress
+  namespace: student-martabulic
+  annotations:
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+spec:
+  rules:
+    - host: martabulic.fpmoz.sum.ba   # zamijenite!
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: fastapi-api-service
+                port:
+                  number: 80
+  tls:
+    - hosts:
+        - <vas-username>.fpmoz.sum.ba
+      secretName: fastapi-api-tls

manifests/app/service.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: fastapi-api-service
+  namespace: student-martabulic
+spec:
+  selector:
+    app: fastapi-api
+  ports:
+    - port: 80
+      targetPort: 8000
+  type: ClusterIP

manifests/config/configmap.yaml

@@ -0,0 +1,9 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: fastapi-config
+  namespace: student-martabulic
+data:
+  DATABASE_HOST: postgres-service
+  DATABASE_PORT: "5432"
+  APP_ENV: production

manifests/config/namespace.yaml

@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: student-martabulic   # zamijenite <vas-username>
+  labels:
+    managed-by: argocd

manifests/config/secret.yaml

@@ -0,0 +1,10 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: postgres-secret
+  namespace: student-martabulic
+type: Opaque
+data:
+  POSTGRES_PASSWORD: c3R1ZGVudDEyMw==   # student123
+  POSTGRES_DB:       ZmFzdGFwaWRi        # fastapidb
+  POSTGRES_USER:     ZmFzdGFwaXVzZXI=        # fastapiuser

manifests/database/deployment.yaml

@@ -0,0 +1,35 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: postgres
+  namespace: student-martabulic
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: postgres
+  template:
+    metadata:
+      labels:
+        app: postgres
+    spec:
+      containers:
+        - name: postgres
+          image: postgres:16-alpine
+          envFrom:
+            - secretRef:
+                name: postgres-secret     # lozinke iz Secreta
+          ports:
+            - containerPort: 5432
+          volumeMounts:
+            - name: postgres-data
+              mountPath: /var/lib/postgresql/data
+          readinessProbe:
+            exec:
+              command: ["pg_isready", "-U", "fastapiuser", "-d", "fastapidb"]
+            initialDelaySeconds: 10
+            periodSeconds: 5
+      volumes:
+        - name: postgres-data
+          persistentVolumeClaim:
+            claimName: postgres-pvc       # disk koji smo rezervirali

manifests/database/pvc.yaml

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+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: postgres-pvc
+  namespace: student-martabulic
+spec:
+  accessModes:
+    - ReadWriteOnce          # jedan node moze pisati u isto vrijeme
+  resources:
+    requests:
+      storage: 1Gi           # 1 GB - dovoljno za vjezbu
+  storageClassName: local-path  # k3s default storage class

manifests/database/service.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: postgres-service
+  namespace: student-martabulic
+spec:
+  selector:
+    app: postgres
+  ports:
+    - port: 5432
+      targetPort: 5432
+  type: ClusterIP             # dostupno samo unutar clustera