apiVersion: autoscaling/v2

kind: HorizontalPodAutoscaler

metadata:

name: wifi-densepose-hpa

namespace: wifi-densepose

labels:

app: wifi-densepose

component: autoscaler

spec:

scaleTargetRef:

apiVersion: apps/v1

kind: Deployment

name: wifi-densepose

minReplicas: 3

maxReplicas: 20

metrics:

- type: Resource

resource:

name: cpu

target:

type: Utilization

averageUtilization: 70

- type: Resource

resource:

name: memory

target:

type: Utilization

averageUtilization: 80

- type: Pods

pods:

metric:

name: websocket_connections_per_pod

target:

type: AverageValue

averageValue: "50"

- type: Object

object:

metric:

name: nginx_ingress_controller_requests_rate

describedObject:

apiVersion: v1

kind: Service

name: nginx-service

target:

type: Value

value: "1000"

behavior:

scaleDown:

stabilizationWindowSeconds: 300

policies:

- type: Percent

value: 10

periodSeconds: 60

- type: Pods

value: 2

periodSeconds: 60

selectPolicy: Min

scaleUp:

stabilizationWindowSeconds: 60

policies:

- type: Percent

value: 50

periodSeconds: 60

- type: Pods

value: 4

periodSeconds: 60

selectPolicy: Max

---

apiVersion: autoscaling/v2

kind: HorizontalPodAutoscaler

metadata:

name: nginx-hpa

namespace: wifi-densepose

labels:

app: wifi-densepose

component: nginx-autoscaler

spec:

scaleTargetRef:

apiVersion: apps/v1

kind: Deployment

name: nginx

minReplicas: 2

maxReplicas: 10

metrics:

- type: Resource

resource:

name: cpu

target:

type: Utilization

averageUtilization: 60

- type: Resource

resource:

name: memory

target:

type: Utilization

averageUtilization: 70

- type: Object

object:

metric:

name: nginx_http_requests_per_second

describedObject:

apiVersion: v1

kind: Service

name: nginx-service

target:

type: Value

value: "500"

behavior:

scaleDown:

stabilizationWindowSeconds: 300

policies:

- type: Percent

value: 20

periodSeconds: 60

selectPolicy: Min

scaleUp:

stabilizationWindowSeconds: 30

policies:

- type: Percent

value: 100

periodSeconds: 30

- type: Pods

value: 2

periodSeconds: 30

selectPolicy: Max

---

# Vertical Pod Autoscaler for database optimization

apiVersion: autoscaling.k8s.io/v1

kind: VerticalPodAutoscaler

metadata:

name: postgres-vpa

namespace: wifi-densepose

labels:

app: wifi-densepose

component: postgres-vpa

spec:

targetRef:

apiVersion: apps/v1

kind: Deployment

name: postgres

updatePolicy:

updateMode: "Auto"

resourcePolicy:

containerPolicies:

- containerName: postgres

minAllowed:

cpu: 250m

memory: 512Mi

maxAllowed:

cpu: 2

memory: 4Gi

controlledResources: ["cpu", "memory"]

controlledValues: RequestsAndLimits

---

apiVersion: autoscaling.k8s.io/v1

kind: VerticalPodAutoscaler

metadata:

name: redis-vpa

namespace: wifi-densepose

labels:

app: wifi-densepose

component: redis-vpa

spec:

targetRef:

apiVersion: apps/v1

kind: Deployment

name: redis

updatePolicy:

updateMode: "Auto"

resourcePolicy:

containerPolicies:

- containerName: redis

minAllowed:

cpu: 100m

memory: 256Mi

maxAllowed:

cpu: 1

memory: 2Gi

controlledResources: ["cpu", "memory"]

controlledValues: RequestsAndLimits

---

# Pod Disruption Budget for high availability

apiVersion: policy/v1

kind: PodDisruptionBudget

metadata:

name: wifi-densepose-pdb

namespace: wifi-densepose

labels:

app: wifi-densepose

component: pdb

spec:

minAvailable: 2

selector:

matchLabels:

app: wifi-densepose

component: api

---

apiVersion: policy/v1

kind: PodDisruptionBudget

metadata:

name: nginx-pdb

namespace: wifi-densepose

labels:

app: wifi-densepose

component: nginx-pdb

spec:

minAvailable: 1

selector:

matchLabels:

app: wifi-densepose

component: nginx

---

# Custom Resource for advanced autoscaling (KEDA)

apiVersion: keda.sh/v1alpha1

kind: ScaledObject

metadata:

name: wifi-densepose-keda-scaler

namespace: wifi-densepose

labels:

app: wifi-densepose

component: keda-scaler

spec:

scaleTargetRef:

name: wifi-densepose

pollingInterval: 30

cooldownPeriod: 300

idleReplicaCount: 3

minReplicaCount: 3

maxReplicaCount: 50

fallback:

failureThreshold: 3

replicas: 6

advanced:

restoreToOriginalReplicaCount: true

horizontalPodAutoscalerConfig:

name: wifi-densepose-keda-hpa

behavior:

scaleDown:

stabilizationWindowSeconds: 300

policies:

- type: Percent

value: 10

periodSeconds: 60

scaleUp:

stabilizationWindowSeconds: 60

policies:

- type: Percent

value: 50

periodSeconds: 60

triggers:

- type: prometheus

metadata:

serverAddress: http://prometheus-service.monitoring.svc.cluster.local:9090

metricName: wifi_densepose_active_connections

threshold: '80'

query: sum(wifi_densepose_websocket_connections_active)

- type: prometheus

metadata:

serverAddress: http://prometheus-service.monitoring.svc.cluster.local:9090

metricName: wifi_densepose_request_rate

threshold: '1000'

query: sum(rate(http_requests_total{service="wifi-densepose"}[5m]))

- type: prometheus

metadata:

serverAddress: http://prometheus-service.monitoring.svc.cluster.local:9090

metricName: wifi_densepose_queue_length

threshold: '100'

query: sum(wifi_densepose_processing_queue_length)

- type: redis

metadata:

address: redis-service.wifi-densepose.svc.cluster.local:6379

listName: processing_queue

listLength: '50'

passwordFromEnv: REDIS_PASSWORD

---

# Network Policy for autoscaling components

apiVersion: networking.k8s.io/v1

kind: NetworkPolicy

metadata:

name: autoscaling-network-policy

namespace: wifi-densepose

labels:

app: wifi-densepose

component: autoscaling-network-policy

spec:

podSelector:

matchLabels:

app: wifi-densepose

policyTypes:

- Ingress

- Egress

ingress:

- from:

- namespaceSelector:

matchLabels:

name: kube-system

- namespaceSelector:

matchLabels:

name: monitoring

ports:

- protocol: TCP

port: 8080

egress:

- to:

- namespaceSelector:

matchLabels:

name: monitoring

ports:

- protocol: TCP

port: 9090

- to:

- podSelector:

matchLabels:

component: redis

ports:

- protocol: TCP

port: 6379