installers/charm/kafka-k8s/reactive/spec_template.yaml

# Copyright 2021 Canonical Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
# For those usages not covered by the Apache License, Version 2.0 please
# contact: legal@canonical.com
#
# To get in touch with the maintainers, please contact:
# osm-charmers@lists.launchpad.net
##

version: 2
containers:
  - name: %(name)s
    image: %(docker_image)s
    ports:
      - containerPort: %(advertised-port)s
        protocol: TCP
    config:
      ALLOW_ANONYMOUS_LOGIN: 'yes'
      ENABLE_AUTO_EXTEND: "true"
      KAFKA_ADVERTISED_HOST_NAME: %(advertised-hostname)s
      KAFKA_ADVERTISED_PORT: %(advertised-port)s
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true"
      KAFKA_RESERVED_BROKER_MAX_ID: "999999999"
    command:
      - sh
      - -c
      - "exec kafka-server-start.sh /opt/kafka/config/server.properties --override broker.id=${HOSTNAME##*-} \
        --override listeners=PLAINTEXT://:%(advertised-port)s \
        --override zookeeper.connect=%(zookeeper_uri)s \
        --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=%(kafka-units)s \
        --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=%(kafka-units)s \
        --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 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=%(num-partitions)s \
        --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 "
    kubernetes:
      readinessProbe:
        tcpSocket:
          port: %(advertised-port)s
        timeoutSeconds: 5
        periodSeconds: 5
        initialDelaySeconds: 10
      livenessProbe:
        exec:
          command: 
          - sh 
          - -c 
          - "/opt/kafka/bin/kafka-broker-api-versions.sh --bootstrap-server=localhost:%(advertised-port)s"
        initialDelaySeconds: 60
        timeoutSeconds: 10
        periodSeconds: 5