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262 lines
13 KiB
262 lines
13 KiB
7 years ago
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kind: ConfigMap
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metadata:
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name: broker-config
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namespace: kafka
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apiVersion: v1
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data:
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init.sh: |-
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#!/bin/bash
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set -x
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cp /etc/kafka-configmap/log4j.properties /etc/kafka/
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KAFKA_BROKER_ID=${HOSTNAME##*-}
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SEDS=("s/#init#broker.id=#init#/broker.id=$KAFKA_BROKER_ID/")
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LABELS="kafka-broker-id=$KAFKA_BROKER_ID"
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ANNOTATIONS=""
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hash kubectl 2>/dev/null || {
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SEDS+=("s/#init#broker.rack=#init#/#init#broker.rack=# kubectl not found in path/")
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} && {
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ZONE=$(kubectl get node "$NODE_NAME" -o=go-template='{{index .metadata.labels "failure-domain.beta.kubernetes.io/zone"}}')
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if [ $? -ne 0 ]; then
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SEDS+=("s/#init#broker.rack=#init#/#init#broker.rack=# zone lookup failed, see -c init-config logs/")
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elif [ "x$ZONE" == "x<no value>" ]; then
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SEDS+=("s/#init#broker.rack=#init#/#init#broker.rack=# zone label not found for node $NODE_NAME/")
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else
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SEDS+=("s/#init#broker.rack=#init#/broker.rack=$ZONE/")
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LABELS="$LABELS kafka-broker-rack=$ZONE"
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fi
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OUTSIDE_HOST=$(kubectl get node "$NODE_NAME" -o jsonpath='{.status.addresses[?(@.type=="InternalIP")].address}')
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if [ $? -ne 0 ]; then
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echo "Outside (i.e. cluster-external access) host lookup command failed"
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else
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OUTSIDE_PORT=3240${KAFKA_BROKER_ID}
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SEDS+=("s|#init#advertised.listeners=OUTSIDE://#init#|advertised.listeners=OUTSIDE://${OUTSIDE_HOST}:${OUTSIDE_PORT}|")
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ANNOTATIONS="$ANNOTATIONS kafka-listener-outside-host=$OUTSIDE_HOST kafka-listener-outside-port=$OUTSIDE_PORT"
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fi
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if [ ! -z "$LABELS" ]; then
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kubectl -n $POD_NAMESPACE label pod $POD_NAME $LABELS || echo "Failed to label $POD_NAMESPACE.$POD_NAME - RBAC issue?"
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fi
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if [ ! -z "$ANNOTATIONS" ]; then
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kubectl -n $POD_NAMESPACE annotate pod $POD_NAME $ANNOTATIONS || echo "Failed to annotate $POD_NAMESPACE.$POD_NAME - RBAC issue?"
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fi
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}
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printf '%s\n' "${SEDS[@]}" | sed -f - /etc/kafka-configmap/server.properties > /etc/kafka/server.properties.tmp
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[ $? -eq 0 ] && mv /etc/kafka/server.properties.tmp /etc/kafka/server.properties
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server.properties: |-
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############################# Log Basics #############################
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# A comma seperated list of directories under which to store log files
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# Overrides log.dir
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log.dirs=/var/lib/kafka/data/topics
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# The default number of log partitions per topic. More partitions allow greater
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# parallelism for consumption, but this will also result in more files across
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# the brokers.
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num.partitions=1
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default.replication.factor=3
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min.insync.replicas=2
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auto.create.topics.enable=true
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# The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.
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# This value is recommended to be increased for installations with data dirs located in RAID array.
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#num.recovery.threads.per.data.dir=1
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############################# Server Basics #############################
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# The id of the broker. This must be set to a unique integer for each broker.
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#init#broker.id=#init#
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#init#broker.rack=#init#
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############################# Socket Server Settings #############################
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# The address the socket server listens on. It will get the value returned from
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# java.net.InetAddress.getCanonicalHostName() if not configured.
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# FORMAT:
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# listeners = listener_name://host_name:port
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# EXAMPLE:
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# listeners = PLAINTEXT://your.host.name:9092
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#listeners=PLAINTEXT://:9092
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listeners=OUTSIDE://:9094,PLAINTEXT://:9092
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# Hostname and port the broker will advertise to producers and consumers. If not set,
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# it uses the value for "listeners" if configured. Otherwise, it will use the value
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# returned from java.net.InetAddress.getCanonicalHostName().
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#advertised.listeners=PLAINTEXT://your.host.name:9092
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#init#advertised.listeners=OUTSIDE://#init#,PLAINTEXT://:9092
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# Maps listener names to security protocols, the default is for them to be the same. See the config documentation for more details
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#listener.security.protocol.map=PLAINTEXT:PLAINTEXT,SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,SASL_SSL:SASL_SSL
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listener.security.protocol.map=PLAINTEXT:PLAINTEXT,SSL:SSL,SASL_PLAINTEXT:SASL_PLAINTEXT,SASL_SSL:SASL_SSL,OUTSIDE:PLAINTEXT
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inter.broker.listener.name=PLAINTEXT
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# The number of threads that the server uses for receiving requests from the network and sending responses to the network
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#num.network.threads=3
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# The number of threads that the server uses for processing requests, which may include disk I/O
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#num.io.threads=8
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# The send buffer (SO_SNDBUF) used by the socket server
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#socket.send.buffer.bytes=102400
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# The receive buffer (SO_RCVBUF) used by the socket server
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#socket.receive.buffer.bytes=102400
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# The maximum size of a request that the socket server will accept (protection against OOM)
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#socket.request.max.bytes=104857600
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############################# Internal Topic Settings #############################
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# The replication factor for the group metadata internal topics "__consumer_offsets" and "__transaction_state"
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# For anything other than development testing, a value greater than 1 is recommended for to ensure availability such as 3.
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#offsets.topic.replication.factor=1
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#transaction.state.log.replication.factor=1
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#transaction.state.log.min.isr=1
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############################# Log Flush Policy #############################
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# Messages are immediately written to the filesystem but by default we only fsync() to sync
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# the OS cache lazily. The following configurations control the flush of data to disk.
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# There are a few important trade-offs here:
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# 1. Durability: Unflushed data may be lost if you are not using replication.
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# 2. Latency: Very large flush intervals may lead to latency spikes when the flush does occur as there will be a lot of data to flush.
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# 3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to excessive seeks.
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# The settings below allow one to configure the flush policy to flush data after a period of time or
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# every N messages (or both). This can be done globally and overridden on a per-topic basis.
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# The number of messages to accept before forcing a flush of data to disk
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#log.flush.interval.messages=10000
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# The maximum amount of time a message can sit in a log before we force a flush
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#log.flush.interval.ms=1000
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############################# Log Retention Policy #############################
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# The following configurations control the disposal of log segments. The policy can
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# be set to delete segments after a period of time, or after a given size has accumulated.
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# A segment will be deleted whenever *either* of these criteria are met. Deletion always happens
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# from the end of the log.
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# https://cwiki.apache.org/confluence/display/KAFKA/KIP-186%3A+Increase+offsets+retention+default+to+7+days
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offsets.retention.minutes=10080
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# The minimum age of a log file to be eligible for deletion due to age
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log.retention.hours=-1
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# A size-based retention policy for logs. Segments are pruned from the log unless the remaining
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# segments drop below log.retention.bytes. Functions independently of log.retention.hours.
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#log.retention.bytes=1073741824
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# The maximum size of a log segment file. When this size is reached a new log segment will be created.
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#log.segment.bytes=1073741824
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# The interval at which log segments are checked to see if they can be deleted according
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# to the retention policies
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#log.retention.check.interval.ms=300000
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############################# Zookeeper #############################
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# Zookeeper connection string (see zookeeper docs for details).
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# This is a comma separated host:port pairs, each corresponding to a zk
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# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".
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# You can also append an optional chroot string to the urls to specify the
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# root directory for all kafka znodes.
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zookeeper.connect=zookeeper:2181
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# Timeout in ms for connecting to zookeeper
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#zookeeper.connection.timeout.ms=6000
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############################# Group Coordinator Settings #############################
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# The following configuration specifies the time, in milliseconds, that the GroupCoordinator will delay the initial consumer rebalance.
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# The rebalance will be further delayed by the value of group.initial.rebalance.delay.ms as new members join the group, up to a maximum of max.poll.interval.ms.
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# The default value for this is 3 seconds.
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# We override this to 0 here as it makes for a better out-of-the-box experience for development and testing.
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# However, in production environments the default value of 3 seconds is more suitable as this will help to avoid unnecessary, and potentially expensive, rebalances during application startup.
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#group.initial.rebalance.delay.ms=0
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log4j.properties: |-
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# Unspecified loggers and loggers with additivity=true output to server.log and stdout
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# Note that INFO only applies to unspecified loggers, the log level of the child logger is used otherwise
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log4j.rootLogger=INFO, stdout
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log4j.appender.stdout=org.apache.log4j.ConsoleAppender
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log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
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log4j.appender.stdout.layout.ConversionPattern=[%d] %p %m (%c)%n
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log4j.appender.kafkaAppender=org.apache.log4j.DailyRollingFileAppender
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log4j.appender.kafkaAppender.DatePattern='.'yyyy-MM-dd-HH
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log4j.appender.kafkaAppender.File=${kafka.logs.dir}/server.log
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log4j.appender.kafkaAppender.layout=org.apache.log4j.PatternLayout
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log4j.appender.kafkaAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
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log4j.appender.stateChangeAppender=org.apache.log4j.DailyRollingFileAppender
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log4j.appender.stateChangeAppender.DatePattern='.'yyyy-MM-dd-HH
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log4j.appender.stateChangeAppender.File=${kafka.logs.dir}/state-change.log
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log4j.appender.stateChangeAppender.layout=org.apache.log4j.PatternLayout
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log4j.appender.stateChangeAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
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log4j.appender.requestAppender=org.apache.log4j.DailyRollingFileAppender
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log4j.appender.requestAppender.DatePattern='.'yyyy-MM-dd-HH
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log4j.appender.requestAppender.File=${kafka.logs.dir}/kafka-request.log
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log4j.appender.requestAppender.layout=org.apache.log4j.PatternLayout
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log4j.appender.requestAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
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log4j.appender.cleanerAppender=org.apache.log4j.DailyRollingFileAppender
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log4j.appender.cleanerAppender.DatePattern='.'yyyy-MM-dd-HH
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log4j.appender.cleanerAppender.File=${kafka.logs.dir}/log-cleaner.log
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log4j.appender.cleanerAppender.layout=org.apache.log4j.PatternLayout
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log4j.appender.cleanerAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
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log4j.appender.controllerAppender=org.apache.log4j.DailyRollingFileAppender
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log4j.appender.controllerAppender.DatePattern='.'yyyy-MM-dd-HH
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log4j.appender.controllerAppender.File=${kafka.logs.dir}/controller.log
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log4j.appender.controllerAppender.layout=org.apache.log4j.PatternLayout
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log4j.appender.controllerAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
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log4j.appender.authorizerAppender=org.apache.log4j.DailyRollingFileAppender
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log4j.appender.authorizerAppender.DatePattern='.'yyyy-MM-dd-HH
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log4j.appender.authorizerAppender.File=${kafka.logs.dir}/kafka-authorizer.log
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log4j.appender.authorizerAppender.layout=org.apache.log4j.PatternLayout
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log4j.appender.authorizerAppender.layout.ConversionPattern=[%d] %p %m (%c)%n
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# Change the two lines below to adjust ZK client logging
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log4j.logger.org.I0Itec.zkclient.ZkClient=INFO
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log4j.logger.org.apache.zookeeper=INFO
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# Change the two lines below to adjust the general broker logging level (output to server.log and stdout)
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log4j.logger.kafka=INFO
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log4j.logger.org.apache.kafka=INFO
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# Change to DEBUG or TRACE to enable request logging
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log4j.logger.kafka.request.logger=WARN, requestAppender
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log4j.additivity.kafka.request.logger=false
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# Uncomment the lines below and change log4j.logger.kafka.network.RequestChannel$ to TRACE for additional output
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# related to the handling of requests
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#log4j.logger.kafka.network.Processor=TRACE, requestAppender
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#log4j.logger.kafka.server.KafkaApis=TRACE, requestAppender
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#log4j.additivity.kafka.server.KafkaApis=false
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log4j.logger.kafka.network.RequestChannel$=WARN, requestAppender
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log4j.additivity.kafka.network.RequestChannel$=false
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log4j.logger.kafka.controller=TRACE, controllerAppender
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log4j.additivity.kafka.controller=false
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log4j.logger.kafka.log.LogCleaner=INFO, cleanerAppender
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log4j.additivity.kafka.log.LogCleaner=false
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log4j.logger.state.change.logger=TRACE, stateChangeAppender
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log4j.additivity.state.change.logger=false
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# Change to DEBUG to enable audit log for the authorizer
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log4j.logger.kafka.authorizer.logger=WARN, authorizerAppender
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log4j.additivity.kafka.authorizer.logger=false
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