k8s部署有状态（StatefulSet）zk-kafka集群


一共是五台服务器：

功能IP
node-1192.168.10.201
node-2192.168.10.202
node-3192.168.10.203
node-4192.168.10.204
NFS192.168.10.151

一，创建fns共享存储：
1.五台服务器安装nfs：
yum -y install rpcbind nfs-utils
systemctl enable nfs-server； systemctl enable rpcbind ；system restart nfs-server ；systemctl restart nfs-server
2. NFS151上创建共享目录：
vim /etc/exports
/data/zk/data1 192.168.0.1/16(rw,no_root_squash,no_all_squash,sync)
/data/zk/data2 192.168.0.1/16(rw,no_root_squash,no_all_squash,sync)
/data/zk/data3 192.168.0.1/16(rw,no_root_squash,no_all_squash,sync)
/data/kafka/data1 192.168.0.1/16(rw,no_root_squash,no_all_squash,sync)
/data/kafka/data2 192.168.0.1/16(rw,no_root_squash,no_all_squash,sync)
/data/kafka/data3 192.168.0.1/16(rw,no_root_squash,no_all_squash,sync)
为每一个节点都单独创建了一个目录。

二，创建zk集群相关
1，创建namespace：
vim namespaces.yaml

apiVersion: v1
kind: Namespace
metadata:
   name: zk-kafka
   labels:
     name: zk-kafka
  1. 创建zk的pv：
    vim zk_pv.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
  namespace: zk-kafka
  name: zk-data1
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  nfs:
    server: 192.168.10.151
    path: /data/zk/data1
---
apiVersion: v1
kind: PersistentVolume
metadata:
  namespace: zk-kafka
  name: zk-data2
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  nfs:
    server: 192.168.10.151
    path: /data/zk/data2
---
apiVersion: v1
kind: PersistentVolume
metadata:
  namespace: zk-kafka
  name: zk-data3
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  nfs:
    server: 192.168.10.151
    path: /data/zk/data3

3.创建zk集群：
vim zk.yaml

apiVersion: v1
kind: Service
metadata:
  namespace: zk-kafka
  name: zk-hs
  labels:
    app: zk
spec:
  ports:
  - port: 2888
    name: server
  - port: 3888
    name: leader-election
  clusterIP: None
  selector:
    app: zk
---
apiVersion: v1
kind: Service
metadata:
  namespace: zk-kafka
  name: zk-cs
  labels:
    app: zk
spec:
  type: NodePort
  ports:
  - port: 2181
    targetPort: 2181
    name: client
    nodePort: 2181
  selector:
    app: zk
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  namespace: zk-kafka
  name: zk-pdb
spec:
  selector:
    matchLabels:
      app: zk
  maxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  namespace: zk-kafka
  name: zok
spec:
  serviceName: zk-hs
  replicas: 3
  selector:
    matchLabels:
      app: zk
  template:
    metadata:
      labels:
        app: zk
    spec:
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: "app"
                    operator: In
                    values:
                    - zk
              topologyKey: "kubernetes.io/hostname"
      containers:
      - name: kubernetes-zookeeper
        imagePullPolicy: Always
        image: leolee32/kubernetes-library:kubernetes-zookeeper1.0-3.4.10
        resources:
          requests:
            memory: "1Gi"
            cpu: "0.5"
        ports:
        - containerPort: 2181
          name: client
        - containerPort: 2888
          name: server
        - containerPort: 3888
          name: leader-election
        command:
        - sh
        - -c
        - "start-zookeeper \
          --servers=3 \
          --data_dir=/var/lib/zookeeper/data \
          --data_log_dir=/var/lib/zookeeper/data/log \
apiVersion: v1
kind: Service
metadata:
  namespace: zk-kafka
  name: zk-hs
  labels:
    app: zk
spec:
  ports:
  - port: 2888
    name: server
  - port: 3888
    name: leader-election
  clusterIP: None
  selector:
    app: zk
---
apiVersion: v1
kind: Service
metadata:
  namespace: zk-kafka
  name: zk-cs
  labels:
    app: zk
spec:
  type: NodePort
  ports:
  - port: 2181
    targetPort: 2181
    name: client
    nodePort: 2181
  selector:
    app: zk
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  namespace: zk-kafka
  name: zk-pdb
spec:
  selector:
    matchLabels:
      app: zk
  maxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  namespace: zk-kafka
  name: zok
spec:
  serviceName: zk-hs
  replicas: 3
  selector:
    matchLabels:
      app: zk
  template:
    metadata:
      labels:
        app: zk
    spec:
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: "app"
                    operator: In
                    values:
                    - zk
              topologyKey: "kubernetes.io/hostname"
      containers:
      - name: kubernetes-zookeeper
        imagePullPolicy: Always
        image: leolee32/kubernetes-library:kubernetes-zookeeper1.0-3.4.10
        resources:
          requests:
            memory: "1Gi"
            cpu: "0.5"
        ports:
        - containerPort: 2181
          name: client
        - containerPort: 2888
          name: server
        - containerPort: 3888
          name: leader-election
        command:
        - sh
        - -c
        - "start-zookeeper \
          --servers=3 \
          --data_dir=/var/lib/zookeeper/data \
          --data_log_dir=/var/lib/zookeeper/data/log \
          --conf_dir=/opt/zookeeper/conf \
          --client_port=2181 \
          --election_port=3888 \
          --server_port=2888 \
          --tick_time=2000 \
          --init_limit=10 \
          --sync_limit=5 \
          --heap=512M \
          --max_client_cnxns=60 \
          --snap_retain_count=3 \
          --purge_interval=12 \
          --max_session_timeout=40000 \
          --min_session_timeout=4000 \
          --log_level=INFO"
        readinessProbe:
          exec:
            command:
            - sh
            - -c
            - "zookeeper-ready 2181"
          initialDelaySeconds: 10
          timeoutSeconds: 5
        livenessProbe:
          exec:
            command:
            - sh
            - -c
            - "zookeeper-ready 2181"
          initialDelaySeconds: 10
          timeoutSeconds: 5
        volumeMounts:
        - name: datadir
          mountPath: /var/lib/zookeeper
  volumeClaimTemplates:
  - metadata:
      name: datadir
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 10Gi

···等zok0-2都启动之后开始创建Kafka集群···
等zok0-2都启动之后开始创建Kafka集群
三，创建kafka集群：
1.创建Kafka-pv：
vim kafka_pv.yaml

apiVersion: v1
kind: PersistentVolume
metadata:
  namespace: zk-kafka
  name: kafka-data1
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  nfs:
    server: 192.168.10.151
    path: /data/kafka/data1
---
apiVersion: v1
kind: PersistentVolume
metadata:
  namespace: zk-kafka
  name: kafka-data2
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  nfs:
    server: 192.168.10.151
    path: /data/kafka/data2
---
apiVersion: v1
kind: PersistentVolume
metadata:
  namespace: zk-kafka
  name: kafka-data3
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteOnce
  nfs:
    server: 192.168.10.151
    path: /data/kafka/data3

2.创建kafka集群：
vim kafka.yaml

apiVersion: v1
kind: Service
metadata:
  namespace: zk-kafka
  name: kafka-hs
  labels:
    app: kafka
spec:
  ports:
  - port: 1099
    name: jmx
  clusterIP: None
  selector:
    app: kafka
---
apiVersion: v1
kind: Service
metadata:
  namespace: zk-kafka
  name: kafka-cs
  labels:
    app: kafka
spec:
  type: NodePort
  ports:
  - port: 9092
    targetPort: 9092
    name: client
    nodePort: 9092
  selector:
    app: kafka
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:
  namespace: zk-kafka
  name: kafka-pdb
spec:
  selector:
    matchLabels:
      app: kafka
  maxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  namespace: zk-kafka
  name: kafoka
spec:
  serviceName: kafka-hs
  replicas: 3
  selector:
    matchLabels:
      app: kafka
  template:
    metadata:
      labels:
        app: kafka
    spec:
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: "app"
                    operator: In
                    values:
                    - kafka
              topologyKey: "kubernetes.io/hostname"
      containers:
      - name: k8skafka
        imagePullPolicy: Always
        image: leey18/k8skafka
        resources:
          requests:
            memory: "1Gi"
            cpu: "0.5"
        ports:
        - containerPort: 9092
          name: client
        - containerPort: 1099
          name: jmx
        command:
        - sh
        - -c
        - "exec kafka-server-start.sh /opt/kafka/config/server.properties --override broker.id=${HOSTNAME##*-} \
          --override listeners=PLAINTEXT://:9092 \
          --override zookeeper.connect=zok-0.zk-hs.zk-kafka.svc.cluster.local:2181,zok-1.zk-hs.zk-kafka.svc.cluster.local:2181,zok-2.zk-hs.zk-kafka.svc.cluster.local:2181 \
          --override log.dirs=/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: kafkadatadir
          mountPath: /var/lib/kafka
        readinessProbe:
          exec:
           command:
            - sh
            - -c
            - "/opt/kafka/bin/kafka-broker-api-versions.sh --bootstrap-server=localhost:9092"
  volumeClaimTemplates:
  - metadata:
      name: kafkadatadir
    spec:
      accessModes: [ "ReadWriteOnce" ]
      resources:
        requests:
          storage: 10Gi

等pod启动完毕就ok了。
在这里插入图片描述

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