k8s部署单节点kafka、zookeeper

k8s部署单节点kafka、zookeeper

wodongshixiaobai

3290人浏览 · 2022-02-17 18:45:35

wodongshixiaobai · 2022-02-17 18:45:35 发布

需求：nfs服务

目录

1、 pv.yaml

# 数据存储卷
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: zk-pv
spec:
  capacity:
    storage: 5Gi
  volumeMode: Filesystem
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  storageClassName: zk-pv
  nfs:
    path: /data/nfs/kafka/zkpv
    server: 172.xx.xx.xx

# 数据存储卷
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: kafka-pv
spec:
  capacity:
    storage: 5Gi
  volumeMode: Filesystem
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  storageClassName: kafka-pv
  nfs:
    path: /data/nfs/kafka/kafkapv
    server: 172.xx.xx.xx

2、zk.yaml

---
apiVersion: v1
kind: Service
metadata:
  name: zookeeper-headless
  labels:
    app: zookeeper
spec:
  type: ClusterIP
  clusterIP: None
  publishNotReadyAddresses: true
  ports:
  - name: client
    port: 2181
    targetPort: client
  - name: follower
    port: 2888
    targetPort: follower
  - name: election
    port: 3888
    targetPort: election
  selector:
    app: zookeeper

---
#部署 Service，用于外部访问 Zookeeper
apiVersion: v1
kind: Service
metadata:
  name: zookeeper
  labels:
    app: zookeeper
spec:
  type: NodePort
  ports:
  - name: client
    port: 2181
    targetPort: 2181
    nodePort: 30107
  - name: follower
    port: 2888
    targetPort: follower
  - name: election
    port: 3888
    targetPort: election
  selector:
    app: zookeeper

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: zookeeper
  labels:
    app: zookeeper
spec:
  serviceName: zookeeper-headless
  replicas: 1
  podManagementPolicy: Parallel
  updateStrategy:
    type: RollingUpdate
  selector:
    matchLabels:
      app: zookeeper
  template:
    metadata:
      name: zookeeper
      labels:
        app: zookeeper
    spec:      
      securityContext:
        fsGroup: 1001
      containers:
      - name: zookeeper
        image: docker.io/bitnami/zookeeper:3.4.14-debian-9-r25
        imagePullPolicy: IfNotPresent
        securityContext:
          runAsUser: 1001
        command:
         - bash
         - -ec
         - |
            # Execute entrypoint as usual after obtaining ZOO_SERVER_ID based on POD hostname
            HOSTNAME=`hostname -s`
            if [[ $HOSTNAME =~ (.*)-([0-9]+)$ ]]; then
              ORD=${BASH_REMATCH[2]}
              export ZOO_SERVER_ID=$((ORD+1))
            else
              echo "Failed to get index from hostname $HOST"
              exit 1
            fi
            . /opt/bitnami/base/functions
            . /opt/bitnami/base/helpers
            print_welcome_page
            . /init.sh
            nami_initialize zookeeper
            exec tini -- /run.sh            
        env:
        - name: ZOO_PORT_NUMBER
          value: "2181"
        - name: ZOO_TICK_TIME
          value: "2000"
        - name: ZOO_INIT_LIMIT
          value: "10"
        - name: ZOO_SYNC_LIMIT
          value: "5"
        - name: ZOO_MAX_CLIENT_CNXNS
          value: "60"
        - name: ZOO_SERVERS
          value: "
                  zookeeper-0.zookeeper-headless:2888:3888,
                 "
        - name: ZOO_ENABLE_AUTH
          value: "no"
        - name: ZOO_HEAP_SIZE
          value: "1024"
        - name: ZOO_LOG_LEVEL
          value: "ERROR"
        - name: ALLOW_ANONYMOUS_LOGIN
          value: "yes"
        ports:
        - name: client
          containerPort: 2181
        - name: follower
          containerPort: 2888
        - name: election
          containerPort: 3888
        livenessProbe:
          tcpSocket:
            port: client
          initialDelaySeconds: 30
          periodSeconds: 10
          timeoutSeconds: 5
          successThreshold: 1
          failureThreshold: 6
        readinessProbe:
          tcpSocket:
            port: client
          initialDelaySeconds: 5
          periodSeconds: 10
          timeoutSeconds: 5
          successThreshold: 1
          failureThreshold: 6
        volumeMounts:
        - name: data
          mountPath: /bitnami/zookeeper
  volumeClaimTemplates:
    - metadata:
        name: data
        annotations:
      spec:
        storageClassName: zk-pv    #指定为上面创建的 storageclass
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 5Gi

3、kafka.yaml

---
#部署 Service Headless，用于Kafka间相互通信
apiVersion: v1
kind: Service
metadata:
  name: kafka-headless
  labels:
    app: kafka
spec:
  type: ClusterIP
  clusterIP: None
  ports:
  - name: kafka
    port: 9092
    targetPort: kafka
  selector:
    app: kafka
---
#部署 Service，用于外部访问 Kafka
apiVersion: v1
kind: Service
metadata:
  name: kafka
  labels:
    app: kafka
spec:
  type: NodePort
  ports:
  - name: kafka
    port: 9092
    targetPort: 9092
    nodePort: 30108
  selector:
    app: kafka
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: "kafka"
  labels:
    app: kafka
spec:
  selector:
    matchLabels:
      app: kafka
  serviceName: kafka-headless
  podManagementPolicy: "Parallel"
  replicas: 1
  updateStrategy:
    type: "RollingUpdate"
  template:
    metadata:
      name: "kafka"
      labels:
        app: kafka
    spec:      
      securityContext:
        fsGroup: 1001
        runAsUser: 1001
      containers:
      - name: kafka
        image: "docker.io/bitnami/kafka:2.3.0-debian-9-r4"
        imagePullPolicy: "IfNotPresent"
        env:
        - name: MY_POD_IP
          valueFrom:
            fieldRef:
              fieldPath: status.podIP
        - name: MY_POD_NAME
          valueFrom:
            fieldRef:
              fieldPath: metadata.name
        - name: KAFKA_CFG_ZOOKEEPER_CONNECT
          value: "zookeeper"                 #Zookeeper Service 名称
        - name: KAFKA_PORT_NUMBER
          value: "9092"
        - name: KAFKA_CFG_LISTENERS
          value: "PLAINTEXT://:$(KAFKA_PORT_NUMBER)"
        - name: KAFKA_CFG_ADVERTISED_LISTENERS
          value: 'PLAINTEXT://$(MY_POD_NAME).kafka-headless:$(KAFKA_PORT_NUMBER)'
        - name: ALLOW_PLAINTEXT_LISTENER
          value: "yes"
        - name: KAFKA_HEAP_OPTS
          value: "-Xmx512m -Xms512m"
        - name: KAFKA_CFG_LOGS_DIRS
          value: /opt/bitnami/kafka/data
        - name: JMX_PORT
          value: "9988"
        ports:
        - name: kafka
          containerPort: 9092
        livenessProbe:
          tcpSocket:
            port: kafka
          initialDelaySeconds: 10
          periodSeconds: 10
          timeoutSeconds: 5
          successThreshold: 1
          failureThreshold: 2
        readinessProbe:
          tcpSocket:
            port: kafka
          initialDelaySeconds: 5
          periodSeconds: 10
          timeoutSeconds: 5
          successThreshold: 1
          failureThreshold: 6
        volumeMounts:
        - name: data
          mountPath: /bitnami/kafka
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        storageClassName: kafka-pv   #指定为上面创建的 storageclass
        accessModes:
          - "ReadWriteOnce"
        resources:
          requests:
            storage: 5Gi


----------


---
apiVersion: v1
kind: Service
metadata:
  name: kafka-svc
  labels:
    app: kafka
spec:
  type: NodePort
  ports:
  - port: 9093
    name: server
    targetPort: 9093
    nodePort: 30108
  selector:
    app: kafka
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  name: kafka-pdb
spec:
  selector:
    matchLabels:
      app: kafka
  minAvailable: 2
---
apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  name: kafka
spec:
  serviceName: kafka-svc
  replicas: 1
  template:
    metadata:
      labels:
        app: kafka
    spec:
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: "app"
                    operator: In
                    values:
                    - kafka
              topologyKey: "kubernetes.io/hostname"
        podAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
             - weight: 1
               podAffinityTerm:
                 labelSelector:
                    matchExpressions:
                      - key: "app"
                        operator: In
                        values:
                        - zk
                 topologyKey: "kubernetes.io/hostname"
      terminationGracePeriodSeconds: 300
      containers:
      - name: k8skafka
        imagePullPolicy: IfNotPresent
        image: gcr.io/google_samples/k8skafka:v1
        ports:
        - containerPort: 9093
          name: server
        command:
        - sh
        - -c
        - "exec kafka-server-start.sh /opt/kafka/config/server.properties --override broker.id=${HOSTNAME##*-} \
          --override listeners=PLAINTEXT://:9093 \
          --override zookeeper.connect=172.xx.xx.xx:30107 \
          --override log.dir=/var/lib/kafka \
          --override auto.create.topics.enable=true \
          --override auto.leader.rebalance.enable=true \
          --override background.threads=10 \
          --override compression.type=producer \
          --override delete.topic.enable=false \
          --override leader.imbalance.check.interval.seconds=300 \
          --override leader.imbalance.per.broker.percentage=10 \
          --override log.flush.interval.messages=9223372036854775807 \
          --override log.flush.offset.checkpoint.interval.ms=60000 \
          --override log.flush.scheduler.interval.ms=9223372036854775807 \
          --override log.retention.bytes=-1 \
          --override log.retention.hours=168 \
          --override log.roll.hours=168 \
          --override log.roll.jitter.hours=0 \
          --override log.segment.bytes=1073741824 \
          --override log.segment.delete.delay.ms=60000 \
          --override message.max.bytes=1000012 \
          --override min.insync.replicas=1 \
          --override num.io.threads=8 \
          --override num.network.threads=3 \
          --override num.recovery.threads.per.data.dir=1 \
          --override num.replica.fetchers=1 \
          --override offset.metadata.max.bytes=4096 \
          --override offsets.commit.required.acks=-1 \
          --override offsets.commit.timeout.ms=5000 \
          --override offsets.load.buffer.size=5242880 \
          --override offsets.retention.check.interval.ms=600000 \
          --override offsets.retention.minutes=1440 \
          --override offsets.topic.compression.codec=0 \
          --override offsets.topic.num.partitions=50 \
          --override offsets.topic.replication.factor=3 \
          --override offsets.topic.segment.bytes=104857600 \
          --override queued.max.requests=500 \
          --override quota.consumer.default=9223372036854775807 \
          --override quota.producer.default=9223372036854775807 \
          --override replica.fetch.min.bytes=1 \
          --override replica.fetch.wait.max.ms=500 \
          --override replica.high.watermark.checkpoint.interval.ms=5000 \
          --override replica.lag.time.max.ms=10000 \
          --override replica.socket.receive.buffer.bytes=65536 \
          --override replica.socket.timeout.ms=30000 \
          --override request.timeout.ms=30000 \
          --override socket.receive.buffer.bytes=102400 \
          --override socket.request.max.bytes=104857600 \
          --override socket.send.buffer.bytes=102400 \
          --override unclean.leader.election.enable=true \
          --override zookeeper.session.timeout.ms=6000 \
          --override zookeeper.set.acl=false \
          --override broker.id.generation.enable=true \
          --override connections.max.idle.ms=600000 \
          --override controlled.shutdown.enable=true \
          --override controlled.shutdown.max.retries=3 \
          --override controlled.shutdown.retry.backoff.ms=5000 \
          --override controller.socket.timeout.ms=30000 \
          --override default.replication.factor=1 \
          --override fetch.purgatory.purge.interval.requests=1000 \
          --override group.max.session.timeout.ms=300000 \
          --override group.min.session.timeout.ms=6000 \
          --override inter.broker.protocol.version=0.10.2-IV0 \
          --override log.cleaner.backoff.ms=15000 \
          --override log.cleaner.dedupe.buffer.size=134217728 \
          --override log.cleaner.delete.retention.ms=86400000 \
          --override log.cleaner.enable=true \
          --override log.cleaner.io.buffer.load.factor=0.9 \
          --override log.cleaner.io.buffer.size=524288 \
          --override log.cleaner.io.max.bytes.per.second=1.7976931348623157E308 \
          --override log.cleaner.min.cleanable.ratio=0.5 \
          --override log.cleaner.min.compaction.lag.ms=0 \
          --override log.cleaner.threads=1 \
          --override log.cleanup.policy=delete \
          --override log.index.interval.bytes=4096 \
          --override log.index.size.max.bytes=10485760 \
          --override log.message.timestamp.difference.max.ms=9223372036854775807 \
          --override log.message.timestamp.type=CreateTime \
          --override log.preallocate=false \
          --override log.retention.check.interval.ms=300000 \
          --override max.connections.per.ip=2147483647 \
          --override num.partitions=1 \
          --override producer.purgatory.purge.interval.requests=1000 \
          --override replica.fetch.backoff.ms=1000 \
          --override replica.fetch.max.bytes=1048576 \
          --override replica.fetch.response.max.bytes=10485760 \
          --override reserved.broker.max.id=1000 "
        env:
        - name: KAFKA_HEAP_OPTS
          value : "-Xmx512M -Xms512M"
        - name: KAFKA_OPTS
          value: "-Dlogging.level=INFO"
        volumeMounts:
        - name: datadir
          mountPath: /var/lib/kafka
        readinessProbe:
          exec:
           command:
            - sh
            - -c
            - "/opt/kafka/bin/kafka-broker-api-versions.sh --bootstrap-server=localhost:9093"
      securityContext:
        runAsUser: 1000
        fsGroup: 1000
  volumeClaimTemplates:
  - metadata:
      name: datadir
    spec:
      storageClassName: kafka-pv
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 5Gi

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