# Zabbix 7.2 Monitoring Stack
# PostgreSQL 16 + Zabbix Server + Zabbix Web (nginx)
# ArgoCD managed - BlueJay Lab
# Credentials sourced from 1Password via OnePasswordItem CRD (zabbix-credentials)
---
apiVersion: v1
kind: Namespace
metadata:
  name: zabbix
  labels:
    app.kubernetes.io/part-of: bluejay-infra
---
# PostgreSQL 16 StatefulSet
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: zabbix-postgres
  namespace: zabbix
  labels:
    app: zabbix-postgres
spec:
  serviceName: zabbix-postgres
  replicas: 1
  selector:
    matchLabels:
      app: zabbix-postgres
  template:
    metadata:
      labels:
        app: zabbix-postgres
    spec:
      containers:
        - name: postgres
          image: postgres:16-alpine
          args:
            - "-c"
            - "shared_buffers=256MB"
            - "-c"
            - "effective_cache_size=512MB"
            - "-c"
            - "work_mem=16MB"
            - "-c"
            - "maintenance_work_mem=128MB"
            - "-c"
            - "random_page_cost=1.1"
            - "-c"
            - "effective_io_concurrency=200"
            - "-c"
            - "max_connections=50"
            - "-c"
            - "checkpoint_completion_target=0.9"
            - "-c"
            - "wal_buffers=8MB"
          ports:
            - containerPort: 5432
              name: postgres
          env:
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                  name: zabbix-credentials
                  key: DB-User
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: zabbix-credentials
                  key: DB-Password
            - name: POSTGRES_DB
              value: zabbix
          volumeMounts:
            - name: zabbix-postgres-data
              mountPath: /var/lib/postgresql/data
              subPath: pgdata
          resources:
            requests:
              memory: 512Mi
              cpu: 200m
            limits:
              memory: 1Gi
              cpu: "1"
          livenessProbe:
            exec:
              command:
                - pg_isready
                - -U
                - zabbix
            initialDelaySeconds: 30
            periodSeconds: 10
          readinessProbe:
            exec:
              command:
                - pg_isready
                - -U
                - zabbix
            initialDelaySeconds: 5
            periodSeconds: 5
  volumeClaimTemplates:
    - metadata:
        name: zabbix-postgres-data
      spec:
        accessModes: [ReadWriteOnce]
        resources:
          requests:
            storage: 10Gi
---
apiVersion: v1
kind: Service
metadata:
  name: zabbix-postgres
  namespace: zabbix
spec:
  selector:
    app: zabbix-postgres
  ports:
    - port: 5432
      targetPort: 5432
      name: postgres
  clusterIP: None
---
# Zabbix Server
apiVersion: apps/v1
kind: Deployment
metadata:
  name: zabbix-server
  namespace: zabbix
  labels:
    app: zabbix-server
spec:
  replicas: 1
  selector:
    matchLabels:
      app: zabbix-server
  template:
    metadata:
      labels:
        app: zabbix-server
    spec:
      containers:
        - name: zabbix-server
          image: zabbix/zabbix-server-pgsql:7.2-alpine-latest
          ports:
            - containerPort: 10051
              name: trapper
          env:
            - name: DB_SERVER_HOST
              value: zabbix-postgres
            - name: DB_SERVER_PORT
              value: "5432"
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                  name: zabbix-credentials
                  key: DB-User
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: zabbix-credentials
                  key: DB-Password
            - name: POSTGRES_DB
              value: zabbix
            - name: ZBX_CACHESIZE
              value: "64M"
            - name: ZBX_VALUECACHESIZE
              value: "64M"
            - name: ZBX_HISTORYCACHESIZE
              value: "32M"
            - name: ZBX_TRENDCACHESIZE
              value: "8M"
            - name: ZBX_STARTPOLLERS
              value: "10"
            - name: ZBX_STARTPOLLERSUNREACHABLE
              value: "3"
          resources:
            requests:
              memory: 256Mi
              cpu: 100m
            limits:
              memory: 1Gi
              cpu: "1"
          livenessProbe:
            tcpSocket:
              port: 10051
            initialDelaySeconds: 60
            periodSeconds: 10
          readinessProbe:
            tcpSocket:
              port: 10051
            initialDelaySeconds: 30
            periodSeconds: 5
---
apiVersion: v1
kind: Service
metadata:
  name: zabbix-server
  namespace: zabbix
spec:
  selector:
    app: zabbix-server
  ports:
    - port: 10051
      targetPort: 10051
      name: trapper
---
apiVersion: v1
kind: Service
metadata:
  name: zabbix-trapper
  namespace: zabbix
  annotations:
    metallb.universe.tf/loadBalancerIPs: 10.0.56.203
spec:
  type: LoadBalancer
  selector:
    app: zabbix-server
  ports:
    - port: 10051
      targetPort: 10051
      name: trapper
      protocol: TCP
---
# Zabbix Web (nginx + PostgreSQL)
apiVersion: apps/v1
kind: Deployment
metadata:
  name: zabbix-web
  namespace: zabbix
  labels:
    app: zabbix-web
spec:
  replicas: 1
  selector:
    matchLabels:
      app: zabbix-web
  template:
    metadata:
      labels:
        app: zabbix-web
    spec:
      containers:
        - name: zabbix-web
          image: zabbix/zabbix-web-nginx-pgsql:7.2-alpine-latest
          ports:
            - containerPort: 8080
              name: http
          env:
            - name: ZBX_SERVER_HOST
              value: zabbix-server
            - name: ZBX_SERVER_NAME
              value: "BlueJay NOC"
            - name: PHP_TZ
              value: America/Chicago
            - name: DB_SERVER_HOST
              value: zabbix-postgres
            - name: DB_SERVER_PORT
              value: "5432"
            - name: POSTGRES_USER
              valueFrom:
                secretKeyRef:
                  name: zabbix-credentials
                  key: DB-User
            - name: POSTGRES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: zabbix-credentials
                  key: DB-Password
            - name: POSTGRES_DB
              value: zabbix
            - name: ZBX_ADMIN_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: zabbix-credentials
                  key: password
            - name: ZBX_MEMORYLIMIT
              value: "256M"
            - name: PHP_FPM_PM_MAX_CHILDREN
              value: "10"
            - name: PHP_FPM_PM_START_SERVERS
              value: "3"
            - name: PHP_FPM_PM_MIN_SPARE_SERVERS
              value: "2"
            - name: PHP_FPM_PM_MAX_SPARE_SERVERS
              value: "5"
            - name: PHP_FPM_PM_MAX_REQUESTS
              value: "500"
          resources:
            requests:
              memory: 256Mi
              cpu: 100m
            limits:
              memory: 768Mi
              cpu: 500m
          livenessProbe:
            httpGet:
              path: /
              port: 8080
            initialDelaySeconds: 60
            periodSeconds: 10
          readinessProbe:
            httpGet:
              path: /
              port: 8080
            initialDelaySeconds: 30
            periodSeconds: 5
---
apiVersion: v1
kind: Service
metadata:
  name: zabbix-web
  namespace: zabbix
spec:
  selector:
    app: zabbix-web
  ports:
    - port: 8080
      targetPort: 8080
      name: http
---
# TLS Certificate via cert-manager
apiVersion: cert-manager.io/v1
kind: Certificate
metadata:
  name: zabbix-tls
  namespace: zabbix
spec:
  secretName: zabbix-tls
  issuerRef:
    name: step-ca-acme
    kind: ClusterIssuer
  dnsNames:
    - zabbix.iamworkin.lan
---
# Traefik IngressRoute
apiVersion: traefik.io/v1alpha1
kind: IngressRoute
metadata:
  name: zabbix-web
  namespace: zabbix
spec:
  entryPoints:
    - websecure
  routes:
    - match: Host(`zabbix.iamworkin.lan`)
      kind: Rule
      services:
        - name: zabbix-web
          port: 8080
  tls:
    secretName: zabbix-tls
---
# 1Password secret sync — creates zabbix-credentials K8s Secret
# Fields: DB-User, DB-Password, username, password, URL
apiVersion: onepassword.com/v1
kind: OnePasswordItem
metadata:
  name: zabbix-credentials
  namespace: zabbix
spec:
  itemPath: vaults/IAmWorkin/items/Zabbix Admin