k8s部署单节点kafka、zookeeper
需求：nfs服务
目录
1、 pv.yaml
2、zk.yaml
3、kafka.yaml
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.xx2、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: 5Gi3、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