coredns

apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    deployment.kubernetes.io/revision: "1"
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"apps/v1","kind":"Deployment","metadata":{"annotations":{},"labels":{"k8s-app":"kube-dns"},"name":"coredns","namespace":"kube-system"},"spec":{"replicas":2,"selector":{"matchLabels":{"k8s-app":"kube-dns"}},"strategy":{"rollingUpdate":{"maxUnavailable":1},"type":"RollingUpdate"},"template":{"metadata":{"labels":{"k8s-app":"kube-dns"}},"spec":{"affinity":{"podAntiAffinity":{"preferredDuringSchedulingIgnoredDuringExecution":[{"podAffinityTerm":{"labelSelector":{"matchExpressions":[{"key":"k8s-app","operator":"In","values":["kube-dns"]}]},"topologyKey":"kubernetes.io/hostname"},"weight":100}]}},"containers":[{"args":["-conf","/etc/coredns/Corefile"],"image":"registry.k8s.io/coredns/coredns:v1.10.1","imagePullPolicy":"IfNotPresent","livenessProbe":{"failureThreshold":5,"httpGet":{"path":"/health","port":8080,"scheme":"HTTP"},"initialDelaySeconds":60,"successThreshold":1,"timeoutSeconds":5},"name":"coredns","ports":[{"containerPort":53,"name":"dns","protocol":"UDP"},{"containerPort":53,"name":"dns-tcp","protocol":"TCP"},{"containerPort":9153,"name":"metrics","protocol":"TCP"}],"readinessProbe":{"httpGet":{"path":"/ready","port":8181,"scheme":"HTTP"}},"resources":{"limits":{"memory":"170Mi"},"requests":{"cpu":"100m","memory":"70Mi"}},"securityContext":{"allowPrivilegeEscalation":false,"capabilities":{"add":["NET_BIND_SERVICE"],"drop":["ALL"]},"readOnlyRootFilesystem":true},"volumeMounts":[{"mountPath":"/etc/coredns","name":"config-volume","readOnly":true}]}],"dnsPolicy":"Default","nodeSelector":{"kubernetes.io/os":"linux"},"priorityClassName":"system-cluster-critical","serviceAccountName":"coredns","tolerations":[{"key":"CriticalAddonsOnly","operator":"Exists"},{"effect":"NoSchedule","key":"node-role.kubernetes.io/control-plane"}],"volumes":[{"configMap":{"items":[{"key":"Corefile","path":"Corefile"}],"name":"coredns"},"name":"config-volume"}]}}}}
  creationTimestamp: "2024-09-07T12:05:15Z"
  generation: 1
  labels:
    k8s-app: kube-dns
  name: coredns
  namespace: kube-system
  resourceVersion: "480"
  uid: 211322c3-19eb-472d-b766-ad2083d92cde
spec:
  progressDeadlineSeconds: 600
  replicas: 2
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      k8s-app: kube-dns
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 1
    type: RollingUpdate
  template:
    metadata:
      creationTimestamp: null
      labels:
        k8s-app: kube-dns
    spec:
      affinity:
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: k8s-app
                  operator: In
                  values:
                  - kube-dns
              topologyKey: kubernetes.io/hostname
            weight: 100
      containers:
      - args:
        - -conf
        - /etc/coredns/Corefile
        image: registry.k8s.io/coredns/coredns:v1.10.1
        imagePullPolicy: IfNotPresent
        livenessProbe:
          failureThreshold: 5
          httpGet:
            path: /health
            port: 8080
            scheme: HTTP
          initialDelaySeconds: 60
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 5
        name: coredns
        ports:
        - containerPort: 53
          name: dns
          protocol: UDP
        - containerPort: 53
          name: dns-tcp
          protocol: TCP
        - containerPort: 9153
          name: metrics
          protocol: TCP
        readinessProbe:
          failureThreshold: 3
          httpGet:
            path: /ready
            port: 8181
            scheme: HTTP
          periodSeconds: 10
          successThreshold: 1
          timeoutSeconds: 1
        resources:
          limits:
            memory: 170Mi
          requests:
            cpu: 100m
            memory: 70Mi
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            add:
            - NET_BIND_SERVICE
            drop:
            - ALL
          readOnlyRootFilesystem: true
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /etc/coredns
          name: config-volume
          readOnly: true
      dnsPolicy: Default
      nodeSelector:
        kubernetes.io/os: linux
      priorityClassName: system-cluster-critical
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      serviceAccount: coredns
      serviceAccountName: coredns
      terminationGracePeriodSeconds: 30
      tolerations:
      - key: CriticalAddonsOnly
        operator: Exists
      - effect: NoSchedule
        key: node-role.kubernetes.io/control-plane
      volumes:
      - configMap:
          defaultMode: 420
          items:
          - key: Corefile
            path: Corefile
          name: coredns
        name: config-volume
status:
  availableReplicas: 2
  conditions:
  - lastTransitionTime: "2024-09-07T12:05:43Z"
    lastUpdateTime: "2024-09-07T12:05:43Z"
    message: Deployment has minimum availability.
    reason: MinimumReplicasAvailable
    status: "True"
    type: Available
  - lastTransitionTime: "2024-09-07T12:05:28Z"
    lastUpdateTime: "2024-09-07T12:05:43Z"
    message: ReplicaSet "coredns-768b85b76f" has successfully progressed.
    reason: NewReplicaSetAvailable
    status: "True"
    type: Progressing
  observedGeneration: 1
  readyReplicas: 2
  replicas: 2
  updatedReplicas: 2