Merge pull request #10 from Yolean/kafka-image

Publish Kafka image geared towards persistent storage

Author: solsson

50kafka.yml

@@ -17,7 +17,7 @@ spec:
     spec:
       containers:
       - name: broker
-        image: solsson/kafka:0.10.0.1
+        image: solsson/kafka-persistent:0.10.1
         ports:
         - containerPort: 9092
         command:
@@ -27,12 +27,6 @@ spec:
         volumeMounts:
         - name: datadir
           mountPath: /opt/kafka/data
-      #  - name: conf
-      #    mountPath: /opt/kafka/config/server.properties
-      #volumes:
-      #- name: conf
-      #  configMap:
-      #    name: conf-d
   volumeClaimTemplates:
   - metadata:
       name: datadir

docker-kafka-persistent/Dockerfile

@@ -0,0 +1,19 @@
+
+FROM openjdk:8u102-jre
+
+ENV kafka_version=0.10.1.0
+ENV scala_version=2.11.8
+ENV kafka_bin_version=2.11-$kafka_version
+
+RUN curl -SLs "http://www.scala-lang.org/files/archive/scala-$scala_version.deb" -o scala.deb \
+	&& dpkg -i scala.deb \
+	&& rm scala.deb \
+	&& curl -SLs "http://www.apache.org/dist/kafka/$kafka_version/kafka_$kafka_bin_version.tgz" | tar -xzf - -C /opt \
+	&& mv /opt/kafka_$kafka_bin_version /opt/kafka
+
+WORKDIR /opt/kafka
+ENTRYPOINT ["bin/kafka-server-start.sh"]
+
+ADD config/server.properties config/
+
+CMD ["config/server.properties"]

docker-kafka-persistent/config/server.properties

@@ -0,0 +1,124 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+
+# see kafka.server.KafkaConfig for additional details and defaults
+
+############################# Server Basics #############################
+
+# The id of the broker. This must be set to a unique integer for each broker.
+broker.id=0
+
+# Use https://github.com/Yolean/kafka-topic-client instead
+auto.create.topics.enable=false
+
+# Switch to enable topic deletion or not, default value is false
+delete.topic.enable=false
+
+############################# Socket Server Settings #############################
+
+# The address the socket server listens on. It will get the value returned from 
+# java.net.InetAddress.getCanonicalHostName() if not configured.
+#   FORMAT:
+#     listeners = security_protocol://host_name:port
+#   EXAMPLE:
+#     listeners = PLAINTEXT://your.host.name:9092
+#listeners=PLAINTEXT://:9092
+
+# Hostname and port the broker will advertise to producers and consumers. If not set, 
+# it uses the value for "listeners" if configured.  Otherwise, it will use the value
+# returned from java.net.InetAddress.getCanonicalHostName().
+#advertised.listeners=PLAINTEXT://your.host.name:9092
+
+# The number of threads handling network requests
+num.network.threads=3
+
+# The number of threads doing disk I/O
+num.io.threads=8
+
+# The send buffer (SO_SNDBUF) used by the socket server
+socket.send.buffer.bytes=102400
+
+# The receive buffer (SO_RCVBUF) used by the socket server
+socket.receive.buffer.bytes=102400
+
+# The maximum size of a request that the socket server will accept (protection against OOM)
+socket.request.max.bytes=104857600
+
+
+############################# Log Basics #############################
+
+# A comma seperated list of directories under which to store log files
+log.dirs=/tmp/kafka-logs
+
+# The default number of log partitions per topic. More partitions allow greater
+# parallelism for consumption, but this will also result in more files across
+# the brokers.
+num.partitions=1
+
+# The number of threads per data directory to be used for log recovery at startup and flushing at shutdown.
+# This value is recommended to be increased for installations with data dirs located in RAID array.
+num.recovery.threads.per.data.dir=1
+
+############################# Log Flush Policy #############################
+
+# Messages are immediately written to the filesystem but by default we only fsync() to sync
+# the OS cache lazily. The following configurations control the flush of data to disk.
+# There are a few important trade-offs here:
+#    1. Durability: Unflushed data may be lost if you are not using replication.
+#    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.
+#    3. Throughput: The flush is generally the most expensive operation, and a small flush interval may lead to exceessive seeks.
+# The settings below allow one to configure the flush policy to flush data after a period of time or
+# every N messages (or both). This can be done globally and overridden on a per-topic basis.
+
+# The number of messages to accept before forcing a flush of data to disk
+#log.flush.interval.messages=10000
+
+# The maximum amount of time a message can sit in a log before we force a flush
+#log.flush.interval.ms=1000
+
+############################# Log Retention Policy #############################
+
+# The following configurations control the disposal of log segments. The policy can
+# be set to delete segments after a period of time, or after a given size has accumulated.
+# A segment will be deleted whenever *either* of these criteria are met. Deletion always happens
+# from the end of the log.
+
+# The minimum age of a log file to be eligible for deletion
+log.retention.hours=-1
+
+# A size-based retention policy for logs. Segments are pruned from the log as long as the remaining
+# segments don't drop below log.retention.bytes.
+#log.retention.bytes=1073741824
+
+# The maximum size of a log segment file. When this size is reached a new log segment will be created.
+log.segment.bytes=1073741824
+
+# The interval at which log segments are checked to see if they can be deleted according
+# to the retention policies
+log.retention.check.interval.ms=300000
+
+############################# Zookeeper #############################
+
+# Zookeeper connection string (see zookeeper docs for details).
+# This is a comma separated host:port pairs, each corresponding to a zk
+# server. e.g. "127.0.0.1:3000,127.0.0.1:3001,127.0.0.1:3002".
+# You can also append an optional chroot string to the urls to specify the
+# root directory for all kafka znodes.
+zookeeper.connect=zookeeper:2181
+
+# Timeout in ms for connecting to zookeeper
+zookeeper.connection.timeout.ms=6000
+
+