# =============================================
# Deployment — Node.js REST API
# Stateless application layer that handles all
# CRUD operations for tasks. Reads environment
# variables for DB and Redis connection info.
# =============================================
apiVersion: apps/v1
kind: Deployment
metadata:
  name: taskmanager-api
  namespace: taskmanager
  labels:
    app: taskmanager-api
spec:
  replicas: 2
  selector:
    matchLabels:
      app: taskmanager-api
  template:
    metadata:
      labels:
        app: taskmanager-api
    spec:
      containers:
        - name: api
          image: taskmanager-api:latest
          # Use local image — do not pull from registry
          imagePullPolicy: Never
          ports:
            - containerPort: 3000
          env:
            - name: PORT
              value: "3000"
            - name: POSTGRES_HOST
              value: postgres
            - name: POSTGRES_PORT
              value: "5432"
            - name: POSTGRES_DB
              value: taskmanager
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                  name: postgres-secret
                  key: username
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: postgres-secret
                  key: password
            - name: REDIS_HOST
              value: redis
            - name: REDIS_PORT
              value: "6379"
          readinessProbe:
            httpGet:
              path: /api/health
              port: 3000
            initialDelaySeconds: 15
            periodSeconds: 10
          livenessProbe:
            httpGet:
              path: /api/health
              port: 3000
            initialDelaySeconds: 30
            periodSeconds: 15
          resources:
            requests:
              memory: "128Mi"
              cpu: "100m"
            limits:
              memory: "512Mi"
              cpu: "500m"

---
# =============================================
# Deployment — Nginx Frontend
# Serves the static HTML/CSS/JS task manager
# UI and reverse-proxies /api/ calls to the
# API service inside the cluster.
# =============================================
apiVersion: apps/v1
kind: Deployment
metadata:
  name: taskmanager-frontend
  namespace: taskmanager
  labels:
    app: taskmanager-frontend
spec:
  replicas: 1
  selector:
    matchLabels:
      app: taskmanager-frontend
  template:
    metadata:
      labels:
        app: taskmanager-frontend
    spec:
      containers:
        - name: frontend
          image: taskmanager-frontend:latest
          imagePullPolicy: Never
          ports:
            - containerPort: 80
          readinessProbe:
            httpGet:
              path: /
              port: 80
            initialDelaySeconds: 5
            periodSeconds: 10
          resources:
            requests:
              memory: "64Mi"
              cpu: "50m"
            limits:
              memory: "128Mi"
              cpu: "200m"

---
# =============================================
# Deployment — Adminer
# Lightweight web interface for browsing the
# PostgreSQL database directly in a browser.
# =============================================
apiVersion: apps/v1
kind: Deployment
metadata:
  name: taskmanager-adminer
  namespace: taskmanager
  labels:
    app: taskmanager-adminer
spec:
  replicas: 1
  selector:
    matchLabels:
      app: taskmanager-adminer
  template:
    metadata:
      labels:
        app: taskmanager-adminer
    spec:
      containers:
        - name: adminer
          image: adminer:latest
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 8080
          env:
            - name: ADMINER_DEFAULT_SERVER
              value: postgres
            - name: ADMINER_DESIGN
              value: dracula
          resources:
            requests:
              memory: "64Mi"
              cpu: "50m"
            limits:
              memory: "128Mi"
              cpu: "200m"