k8s-examples.yaml

# This is the list of manifests for our Kubernetes debugging / triage interview segment. 
 
---
apiVersion: v1
kind: Namespace
metadata:
  name: sample-service

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: stressful-deployment
  namespace: sample-service
  labels:
    k8s-app: stressful-service
spec:
  replicas: 6
  selector:
    matchLabels:
      k8s-app: stressful-service
  template:
    metadata:
      labels:
        k8s-app: stressful-service
    spec:
      containers:
      - command:
        - stress
        args:
        - "--vm"
        - "1"
        - "--vm-bytes"
        - "250M"
        - "--vm-hang"
        - "1"
        name: stressful-pod
        image: polinux/stress
        resources:
          requests:
            memory: "100Mi"
          limits:
            memory: "200Mi"

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: mysterious-deployment
  namespace: sample-service
  labels:
    k8s-app: itsamystery
spec:
  replicas: 4
  selector:
    matchLabels:
      k8s-app: itsamystery
  template:
    metadata:
      labels:
        k8s-app: itsamystery
    spec:
      tolerations:
      - effect: NoSchedule
        key: special-nodes
      nodeSelector:
        medium.engineering/nodes: special-nodes
      containers:
      - command:
        - sleep
        args:
        - "3600"
        name: mystery-pod
        image: gcr.io/kubernetes-e2e-test-images/dnsutils:latest
        resources:
          requests:
            cpu: 16
            memory: "100Mi"
          limits:
            memory: "200Mi"

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: redis-config
data:
  redis-config: |
    maxmemory 2mb
    maxmemory-policy allkeys-lru
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis-cluster
  namespace: sample-service
spec:
  serviceName: redis-cluster
  replicas: 6
  selector:
    matchLabels:
      k8s-app: redis-cluster
  template:
    metadata:
      labels:
        k8s-app: redis-cluster
    spec:
      containers:
      - name: redis
        image: redis:6.2.5
        command: ["redis-server"]
        args: ["/conf/redis.conf"]
        env:
        - name: REDIS_CLUSTER_ANNOUNCE_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP
        ports:
        - containerPort: 6379
          name: client
        - containerPort: 16379
          name: gossip
        volumeMounts:
        - mountPath: /conf
          name: config
      volumes:
      - name: data
        emptyDir: {}
      - name: config
        configMap:
          name: redis-config