apiVersion: apps/v1
kind: Deployment
metadata:
  name: snmp-exporter
  namespace: monitoring
  labels:
    app.kubernetes.io/name: snmp-exporter
    app.kubernetes.io/instance: snmp-exporter
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: snmp-exporter
  template:
    metadata:
      labels:
        app.kubernetes.io/name: snmp-exporter
        app.kubernetes.io/instance: snmp-exporter
    spec:
      securityContext:
        runAsNonRoot: true
        runAsUser: 65534
        runAsGroup: 65534
        seccompProfile:
          type: RuntimeDefault
      containers:
        - name: snmp-exporter
          image: quay.io/prometheus/snmp-exporter:v0.30.1
          args:
            # Vendored snmp.yml (configmap) — `synology` module with full coverage
            # (Synology private trees + IF-MIB + HOST-RESOURCES + UCD), matched to the dashboard.
            - "--config.file=/etc/snmp-config/snmp.yml"
            # Our SNMPv3 credentials; snmp_exporter merges multiple --config.file flags.
            - "--config.file=/etc/snmp-auth/auth.yml"
          ports:
            - name: metrics
              containerPort: 9116
              protocol: TCP
          volumeMounts:
            - name: config
              mountPath: /etc/snmp-config
              readOnly: true
            - name: auth
              mountPath: /etc/snmp-auth
              readOnly: true
          readinessProbe:
            httpGet:
              path: /
              port: metrics
            initialDelaySeconds: 5
            periodSeconds: 15
          livenessProbe:
            httpGet:
              path: /
              port: metrics
            initialDelaySeconds: 15
            periodSeconds: 30
          securityContext:
            allowPrivilegeEscalation: false
            readOnlyRootFilesystem: true
            capabilities:
              drop:
                - ALL
          resources:
            requests:
              cpu: 50m
              memory: 64Mi
            limits:
              memory: 128Mi
      volumes:
        - name: config
          configMap:
            name: snmp-exporter-config
        - name: auth
          secret:
            secretName: snmp-exporter-auth