k8s部署有状态（StatefulSet）zk-kafka集群

一共是五台服务器：

功能	IP
node-1	192.168.10.201
node-2	192.168.10.202
node-3	192.168.10.203
node-4	192.168.10.204
NFS	192.168.10.151

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-kafkalabels:name: zk-kafka

创建zk的pv：
vim zk_pv.yaml

apiVersion: v1
kind: PersistentVolume
metadata:namespace: zk-kafkaname: zk-data1
spec:capacity:storage: 10GiaccessModes:- ReadWriteOncenfs:server: 192.168.10.151path: /data/zk/data1
---
apiVersion: v1
kind: PersistentVolume
metadata:namespace: zk-kafkaname: zk-data2
spec:capacity:storage: 10GiaccessModes:- ReadWriteOncenfs:server: 192.168.10.151path: /data/zk/data2
---
apiVersion: v1
kind: PersistentVolume
metadata:namespace: zk-kafkaname: zk-data3
spec:capacity:storage: 10GiaccessModes:- ReadWriteOncenfs:server: 192.168.10.151path: /data/zk/data3

3.创建zk集群：
vim zk.yaml

apiVersion: v1
kind: Service
metadata:namespace: zk-kafkaname: zk-hslabels:app: zk
spec:ports:- port: 2888name: server- port: 3888name: leader-electionclusterIP: Noneselector:app: zk
---
apiVersion: v1
kind: Service
metadata:namespace: zk-kafkaname: zk-cslabels:app: zk
spec:type: NodePortports:- port: 2181targetPort: 2181name: clientnodePort: 2181selector:app: zk
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:namespace: zk-kafkaname: zk-pdb
spec:selector:matchLabels:app: zkmaxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:namespace: zk-kafkaname: zok
spec:serviceName: zk-hsreplicas: 3selector:matchLabels:app: zktemplate:metadata:labels:app: zkspec:affinity:podAntiAffinity:requiredDuringSchedulingIgnoredDuringExecution:- labelSelector:matchExpressions:- key: "app"operator: Invalues:- zktopologyKey: "kubernetes.io/hostname"containers:- name: kubernetes-zookeeperimagePullPolicy: Alwaysimage: leolee32/kubernetes-library:kubernetes-zookeeper1.0-3.4.10resources:requests:memory: "1Gi"cpu: "0.5"ports:- containerPort: 2181name: client- containerPort: 2888name: server- containerPort: 3888name: leader-electioncommand:- 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-kafkaname: zk-hslabels:app: zk
spec:ports:- port: 2888name: server- port: 3888name: leader-electionclusterIP: Noneselector:app: zk
---
apiVersion: v1
kind: Service
metadata:namespace: zk-kafkaname: zk-cslabels:app: zk
spec:type: NodePortports:- port: 2181targetPort: 2181name: clientnodePort: 2181selector:app: zk
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:namespace: zk-kafkaname: zk-pdb
spec:selector:matchLabels:app: zkmaxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:namespace: zk-kafkaname: zok
spec:serviceName: zk-hsreplicas: 3selector:matchLabels:app: zktemplate:metadata:labels:app: zkspec:affinity:podAntiAffinity:requiredDuringSchedulingIgnoredDuringExecution:- labelSelector:matchExpressions:- key: "app"operator: Invalues:- zktopologyKey: "kubernetes.io/hostname"containers:- name: kubernetes-zookeeperimagePullPolicy: Alwaysimage: leolee32/kubernetes-library:kubernetes-zookeeper1.0-3.4.10resources:requests:memory: "1Gi"cpu: "0.5"ports:- containerPort: 2181name: client- containerPort: 2888name: server- containerPort: 3888name: leader-electioncommand:- 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: 10timeoutSeconds: 5livenessProbe:exec:command:- sh- -c- "zookeeper-ready 2181"initialDelaySeconds: 10timeoutSeconds: 5volumeMounts:- name: datadirmountPath: /var/lib/zookeepervolumeClaimTemplates:- metadata:name: datadirspec:accessModes: [ "ReadWriteOnce" ]resources:requests:storage: 10Gi

···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-kafkaname: kafka-data1
spec:capacity:storage: 10GiaccessModes:- ReadWriteOncenfs:server: 192.168.10.151path: /data/kafka/data1
---
apiVersion: v1
kind: PersistentVolume
metadata:namespace: zk-kafkaname: kafka-data2
spec:capacity:storage: 10GiaccessModes:- ReadWriteOncenfs:server: 192.168.10.151path: /data/kafka/data2
---
apiVersion: v1
kind: PersistentVolume
metadata:namespace: zk-kafkaname: kafka-data3
spec:capacity:storage: 10GiaccessModes:- ReadWriteOncenfs:server: 192.168.10.151path: /data/kafka/data3

2.创建kafka集群：
vim kafka.yaml

apiVersion: v1
kind: Service
metadata:namespace: zk-kafkaname: kafka-hslabels:app: kafka
spec:ports:- port: 1099name: jmxclusterIP: Noneselector:app: kafka
---
apiVersion: v1
kind: Service
metadata:namespace: zk-kafkaname: kafka-cslabels:app: kafka
spec:type: NodePortports:- port: 9092targetPort: 9092name: clientnodePort: 9092selector:app: kafka
---
apiVersion: policy/v1beta1
kind: PodDisruptionBudget
metadata:namespace: zk-kafkaname: kafka-pdb
spec:selector:matchLabels:app: kafkamaxUnavailable: 1
---
apiVersion: apps/v1
kind: StatefulSet
metadata:namespace: zk-kafkaname: kafoka
spec:serviceName: kafka-hsreplicas: 3selector:matchLabels:app: kafkatemplate:metadata:labels:app: kafkaspec:affinity:podAntiAffinity:requiredDuringSchedulingIgnoredDuringExecution:- labelSelector:matchExpressions:- key: "app"operator: Invalues:- kafkatopologyKey: "kubernetes.io/hostname"containers:- name: k8skafkaimagePullPolicy: Alwaysimage: leey18/k8skafkaresources:requests:memory: "1Gi"cpu: "0.5"ports:- containerPort: 9092name: client- containerPort: 1099name: jmxcommand:- 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_OPTSvalue : "-Xmx512M -Xms512M"- name: KAFKA_OPTSvalue: "-Dlogging.level=INFO"volumeMounts:- name: kafkadatadirmountPath: /var/lib/kafkareadinessProbe:exec:command:- sh- -c- "/opt/kafka/bin/kafka-broker-api-versions.sh --bootstrap-server=localhost:9092"volumeClaimTemplates:- metadata:name: kafkadatadirspec:accessModes: [ "ReadWriteOnce" ]resources:requests:storage: 10Gi

等pod启动完毕就ok了。

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