# Kong API Gateway Kubernetes Deployment

apiVersion: v1
kind: Namespace
metadata:
  name: api-gateway
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: kong
  namespace: api-gateway
spec:
  replicas: 2
  selector:
    matchLabels:
      app: kong
  template:
    metadata:
      labels:
        app: kong
    spec:
      containers:
        - name: kong
          image: kong:3.4
          env:
            - name: KONG_DATABASE
              value: "off"
            - name: KONG_DECLARATIVE_CONFIG
              value: "/kong/kong.yaml"
            - name: KONG_PROXY_ACCESS_LOG
              value: /dev/stdout
            - name: KONG_ADMIN_ACCESS_LOG
              value: /dev/stdout
            - name: KONG_PROXY_ERROR_LOG
              value: /dev/stderr
            - name: KONG_ADMIN_ERROR_LOG
              value: /dev/stderr
            - name: KONG_ADMIN_LISTEN
              value: "0.0.0.0:8001"
          ports:
            - name: proxy
              containerPort: 8000
            - name: admin
              containerPort: 8001
          resources:
            requests:
              memory: "256Mi"
              cpu: "100m"
            limits:
              memory: "512Mi"
              cpu: "500m"
          volumeMounts:
            - name: kong-config
              mountPath: /kong/kong.yaml
              subPath: kong.yaml
      volumes:
        - name: kong-config
          configMap:
            name: kong-config
---
apiVersion: v1
kind: Service
metadata:
  name: kong-proxy
  namespace: api-gateway
spec:
  type: LoadBalancer
  ports:
    - port: 80
      targetPort: 8000
      protocol: TCP
      name: http
    - port: 443
      targetPort: 8443
      protocol: TCP
      name: https
  selector:
    app: kong
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: kong-config
  namespace: api-gateway
data:
  kong.yaml: |
    # Kong configuration will be loaded from kong.yaml file