At the moment GitLab CI does not easily support interconnecting services (see #15220). This container runs ZooKeeper as daemon and Kafka as foreground process, so it can be used out-of-the-box for CI testing.
It follows Apache Kafka Quickstart, usings the CLI tools shipped with the binary release to start a ZooKeeper daemon and the Kafka server.
Optionally use specific broker id, docker run --rm -it --env=BROKER_ID=1 martinnowak/kafka.
# generate unique id by default
ENV BROKER_ID=-1
Optionally mount persistent volume, docker run --rm -it --volume=/tmp/host/kafka:/var/lib/kafka martinnowak/kafka.
VOLUME /var/lib/kafka
Optionally publish ports on host, docker run --rm -it --publish=2181:2181 --publish=9092:9092 martinnowak/kafka.
EXPOSE 2181/tcp 9092/tcp
Optionally build with a different version, docker build --build-arg=KAFKA_VERSION=0.11.0.2 ..
ARG KAFKA_VERSION=1.1.0
ARG SCALA_VERSION=2.11