ADding Strimzi addon

Author: matzew

add-ons/strimzi/README.md

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+# Deploying Strimzi on OpenShift
+
+This addon provides an easy way to install an Apache Kafka cluster, using [Strimzi](http://strimzi.io/) on [Minishift](https://github.com/minishift/minishift).
+
+Prerequisites:
+
+ * [Installed and running](https://docs.okd.io/latest/minishift/getting-started/installing.html) Minishift
+ * [Installed](https://docs.okd.io/latest/minishift/command-ref/minishift_oc-env.html) OpenShift CLI
+
+## Start Minishift
+The deployment works with Minishift default resources - 2 CPUs and 2 GB RAM. Nevertheless we prefer to allocate more memory (4 GB) available to Strimzi and associated infrastructure. Start Minishift using following command to provide more RAM.
+```
+$ minishift start --memory=4GB
+```
+
+## Add-on installation
+Clone this repository onto your local machine and then install the add-on via:
+```
+    $ minishift addons install <path_to_directory_containing_this_readme>
+```
+
+## Strimzi start
+Deploy the Apache Kafka cluster:
+
+```
+minishift addon apply -a STRIMZI_VERSION=0.7.0 -a PROJECT=myproject
+```
+
+After a while all parts should be up and running, you can monitor the progress:
+
+```
+oc get pods -w
+```
+
+## Supported parameters
+* `STRIMZI_VERSION` - the verson of Strimzi to be used (only released versions are supported)
+* `PROJECT` - the name of the project to which Strimzi is deployed
+
+## Strimzi Documentation
+To learn more about Strimzi, read the [Strimzi documentation](http://strimzi.io/).

add-ons/strimzi/strimzi.addon

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+# Name: strimzi
+# Description: Deploys an Apache Kafka Cluster
+# Required-Vars: STRIMZI_VERSION
+# Var-Defaults: STRIMZI_VERSION=0.7.0,PROJECT=strimzi
+
+# Pull images
+echo Pulling images...
+docker pull docker.io/strimzi/topic-operator:#{STRIMZI_VERSION}
+docker pull docker.io/strimzi/entity-operator-stunnel:#{STRIMZI_VERSION}
+docker pull docker.io/strimzi/user-operator:#{STRIMZI_VERSION}
+docker pull docker.io/strimzi/cluster-operator:#{STRIMZI_VERSION}
+docker pull docker.io/strimzi/kafka:#{STRIMZI_VERSION}
+docker pull docker.io/strimzi/kafka-stunnel:#{STRIMZI_VERSION}
+docker pull docker.io/strimzi/kafka-init:#{STRIMZI_VERSION}
+docker pull docker.io/strimzi/zookeeper-stunnel:#{STRIMZI_VERSION}
+docker pull docker.io/strimzi/zookeeper:#{STRIMZI_VERSION}
+
+
+# Downloading Strimzi files
+wget https://github.com/strimzi/strimzi-kafka-operator/releases/download/#{STRIMZI_VERSION}/strimzi-#{STRIMZI_VERSION}.tar.gz
+
+echo Applying Strimzi Templates
+oc apply -f strimzi-#{STRIMZI_VERSION}/examples/install/cluster-operator -n #{PROJECT}
+oc apply -f strimzi-#{STRIMZI_VERSION}/examples/templates/cluster-operator -n #{PROJECT}
+
+echo Waiting for Strimzi Cluster Operator to become ready
+sleep 5; while echo && oc get pods -n myproject | grep -v -E "(Running|Completed|STATUS)"; do sleep 5; done
+
+echo Creating persistent Strimzi broker
+oc apply -f strimzi-#{STRIMZI_VERSION}/examples/kafka/kafka-persistent.yaml -n #{PROJECT}
+
+echo Completed, wait for Strimzi start!