# ======================================================
# WGER - PRODUCTION ARCHITECTURE
# Traefik → nginx → wger → postgres
# ======================================================

# -------------------------
# STORAGE CLASS
# -------------------------
---
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: wger-local-storage
provisioner: kubernetes.io/no-provisioner
volumeBindingMode: WaitForFirstConsumer

# ======================================================
# PERSISTENT VOLUMES
# ======================================================

# -------------------------
# POSTGRES PV
# -------------------------
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: wger-postgres-pv
spec:
  capacity:
    storage: 2Gi
  accessModes: [ReadWriteOnce]
  storageClassName: wger-local-storage
  persistentVolumeReclaimPolicy: Retain
  local:
    path: /home/kimjunte/k8s_storage/wger/postgres
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values: [mist]
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: wger-postgres-pvc
spec:
  accessModes: [ReadWriteOnce]
  storageClassName: wger-local-storage
  resources:
    requests:
      storage: 2Gi

# -------------------------
# STATIC PV
# -------------------------
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: wger-static-pv
spec:
  capacity:
    storage: 2Gi
  accessModes: [ReadWriteOnce]
  storageClassName: wger-local-storage
  persistentVolumeReclaimPolicy: Retain
  local:
    path: /home/kimjunte/k8s_storage/wger/static
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values: [mist]
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: wger-static-pvc
spec:
  accessModes: [ReadWriteOnce]
  storageClassName: wger-local-storage
  resources:
    requests:
      storage: 2Gi

# -------------------------
# MEDIA PV
# -------------------------
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: wger-media-pv
spec:
  capacity:
    storage: 5Gi
  accessModes: [ReadWriteOnce]
  storageClassName: wger-local-storage
  persistentVolumeReclaimPolicy: Retain
  local:
    path: /home/kimjunte/k8s_storage/wger/media
  nodeAffinity:
    required:
      nodeSelectorTerms:
        - matchExpressions:
            - key: kubernetes.io/hostname
              operator: In
              values: [mist]
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: wger-media-pvc
spec:
  accessModes: [ReadWriteOnce]
  storageClassName: wger-local-storage
  resources:
    requests:
      storage: 5Gi

# ======================================================
# POSTGRES
# ======================================================

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wger-postgres
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wger-postgres
  template:
    metadata:
      labels:
        app: wger-postgres
    spec:
      nodeSelector:
        kubernetes.io/hostname: mist
      containers:
        - name: postgres
          image: postgres:15-alpine
          env:
            - name: POSTGRES_USER
              value: wger
            - name: POSTGRES_PASSWORD
              value: wgerpassword
            - name: POSTGRES_DB
              value: wger
          volumeMounts:
            - mountPath: /var/lib/postgresql/data
              name: postgres-storage
      volumes:
        - name: postgres-storage
          persistentVolumeClaim:
            claimName: wger-postgres-pvc

---
apiVersion: v1
kind: Service
metadata:
  name: wger-postgres
spec:
  selector:
    app: wger-postgres
  ports:
    - port: 5432

# ======================================================
# REDIS
# ======================================================

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wger-redis
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wger-redis
  template:
    metadata:
      labels:
        app: wger-redis
    spec:
      nodeSelector:
        kubernetes.io/hostname: mist
      containers:
        - name: redis
          image: redis:7-alpine

---
apiVersion: v1
kind: Service
metadata:
  name: wger-redis
spec:
  selector:
    app: wger-redis
  ports:
    - port: 6379

# ======================================================
# WGER APP
# ======================================================

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wger
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wger
  template:
    metadata:
      labels:
        app: wger
    spec:
      nodeSelector:
        kubernetes.io/hostname: mist
      containers:
        - name: wger
          image: wger/server:latest
          env:
            - name: DATABASE_URL
              value: postgres://wger:wgerpassword@wger-postgres:5432/wger
            - name: CACHE_URL
              value: redis://wger-redis:6379/1
            - name: DJANGO_SECRET_KEY
              value: replace-with-long-random-string
            - name: ALLOWED_HOSTS
              value: "*"
            - name: CSRF_TRUSTED_ORIGINS
              value: https://exercise.juntekim.com
          ports:
            - containerPort: 8000
          volumeMounts:
            - name: static-storage
              mountPath: /home/wger/static
            - name: media-storage
              mountPath: /home/wger/media
      volumes:
        - name: static-storage
          persistentVolumeClaim:
            claimName: wger-static-pvc
        - name: media-storage
          persistentVolumeClaim:
            claimName: wger-media-pvc

---
apiVersion: v1
kind: Service
metadata:
  name: wger
spec:
  selector:
    app: wger
  ports:
    - port: 8000
      targetPort: 8000

# ======================================================
# NGINX (STATIC + PROXY)
# ======================================================

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: wger-nginx-config
data:
  default.conf: |
    server {
        listen 80;

        location /static/ {
            alias /home/wger/static/;
        }

        location /media/ {
            alias /home/wger/media/;
        }

        location / {
            proxy_pass http://wger:8000;
            proxy_set_header Host $host;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
        }
    }

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wger-nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wger-nginx
  template:
    metadata:
      labels:
        app: wger-nginx
    spec:
      nodeSelector:
        kubernetes.io/hostname: mist
      containers:
        - name: nginx
          image: nginx:alpine
          ports:
            - containerPort: 80
          volumeMounts:
            - name: static-storage
              mountPath: /home/wger/static
            - name: media-storage
              mountPath: /home/wger/media
            - name: nginx-config
              mountPath: /etc/nginx/conf.d
      volumes:
        - name: static-storage
          persistentVolumeClaim:
            claimName: wger-static-pvc
        - name: media-storage
          persistentVolumeClaim:
            claimName: wger-media-pvc
        - name: nginx-config
          configMap:
            name: wger-nginx-config

---
apiVersion: v1
kind: Service
metadata:
  name: wger-nginx
spec:
  selector:
    app: wger-nginx
  ports:
    - port: 80
      targetPort: 80

# ======================================================
# TRAEFIK INGRESS
# ======================================================

---
apiVersion: traefik.io/v1alpha1
kind: IngressRoute
metadata:
  name: wger-ingress
spec:
  entryPoints:
    - websecure
  routes:
    - match: Host(`exercise.juntekim.com`)
      kind: Rule
      services:
        - name: wger-nginx
          port: 80
  tls:
    certResolver: myresolver