Add Docker images definition and instruction to deploy on Kubernetes (apache#443)

Author: merlimat

docker/.gitignore

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+
+# Ignore
+pulsar-*-bin.tar.gz

docker/Dockerfile

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+#
+# Copyright 2016 Yahoo Inc.
+#
+# 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.
+#
+
+FROM openjdk:8-jdk
+
+# Install some utilities
+RUN apt-get update && apt-get install -y netcat dnsutils
+
+ARG VERSION
+
+ADD pulsar-${VERSION}-bin.tar.gz /
+RUN mv /pulsar-${VERSION} /pulsar
+
+COPY scripts/apply-config-from-env.py /pulsar/bin
+COPY scripts/generate-zookeeper-config.sh /pulsar/bin
+COPY scripts/pulsar-zookeeper-ruok.sh /pulsar/bin
+
+WORKDIR /pulsar
+
+VOLUME  ["/pulsar/conf", "/pulsar/data"]
+
+ENV PULSAR_ROOT_LOGGER=INFO,CONSOLE

docker/build.sh

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+#!/bin/bash
+#
+# Copyright 2016 Yahoo Inc.
+#
+# 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.
+#
+
+# Get the project version from Maven
+pushd .. > /dev/null
+MVN_VERSION=$(mvn -q \
+    -Dexec.executable="echo" \
+    -Dexec.args='${project.version}' \
+    --non-recursive \
+    org.codehaus.mojo:exec-maven-plugin:1.3.1:exec)
+popd > /dev/null
+
+echo "Pulsar version: ${MVN_VERSION}"
+
+PULSAR_TGZ=$(dirname $PWD)/all/target/pulsar-${MVN_VERSION}-bin.tar.gz
+
+if [ ! -f $PULSAR_TGZ ]; then
+    echo "Pulsar bin distribution not found at ${PULSAR_TGZ}"
+    exit 1
+fi
+
+LINKED_PULSAR_TGZ=pulsar-${MVN_VERSION}-bin.tar.gz
+ln -f ${PULSAR_TGZ} $LINKED_PULSAR_TGZ
+
+echo "Using Pulsar binary package at ${PULSAR_TGZ}"
+
+# Build base image, reused by all other components
+docker build --build-arg VERSION=${MVN_VERSION} \
+             -t pulsar:latest .
+
+if [ $? != 0 ]; then
+    echo "Error: Failed to create Docker image for pulsar"
+    exit 1
+fi
+
+rm pulsar-${MVN_VERSION}-bin.tar.gz
+
+
+# Build pulsar-grafana image
+docker build -t pulsar-grafana grafana
+if [ $? != 0 ]; then
+    echo "Error: Failed to create Docker image for pulsar-grafana"
+    exit 1
+fi
+
+# Build dashboard docker image
+docker build -t pulsar-dashboard ../dashboard
+if [ $? != 0 ]; then
+    echo "Error: Failed to create Docker image for pulsar-dashboard"
+    exit 1
+fi

docker/grafana/Dockerfile

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+#
+# Copyright 2016 Yahoo Inc.
+#
+# 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.
+#
+
+FROM grafana/grafana:4.3.1
+
+COPY grafana.ini /etc/grafana/grafana.ini
+COPY dashboards/* /var/lib/grafana/dashboards/
+COPY start.sh /start.sh
+
+EXPOSE 3000
+
+ENV PROMETHEUS_URL http://prometheus:9090
+
+ENTRYPOINT ["/start.sh"]