Friday, 2 September 2016

Configuration management on OpenShift, Kubernetes and Docker

When deploying Infinispan on Docker based Cloud environments, the most critical thing is how to manage configuration. In this blog post we'll explore some of the options.

Extending our Docker image

Creating your own Docker image based on jboss/infinispan-server is quite simple. At first you need to prepare a configuration XML file, which is shipped with Infinispan release. Go to Infinispan download section and grap a server release corresponding to a chosen Docker image tag.  After unpacking it, grab the configuration (I use cloud.xml as a template) and introduce all necessary changes. 

Finally, build your image:

Now, that was quick! Wasn't it?

Using ConfigMaps with OpenShift

If you're using OpenShift, there's a sophisticated tool called ConfigMap. A ConfigMap can store a configuration file (or a configuration directory) and mount it somewhere in the Pod.

Use the command below to create a ConfigMap based on a configuration file:

Now create Infinispan application based on the configuration below (you can use 'oc create -f <file.yaml>' for this):

  • (lines 50 - 52) - ConfigMap volume declaration
  • (lines 45 - 47) - Mounting configuration into /opt/jboss/infinispan-server/standalone/configuration/custom
  • (line 22) - bootstrapping the Infinispan with custom configuration (note there is no xml extension there)

Using ConfigMaps with Kubernetes

Kubernetes ConfigMaps work exactly the same way as in OpenShift.

The command below creates a ConfigMap:

The second step is to create a Deployment with ConfigMap:


If you're using any Docker orchestration tool - have a look at provided tools. OpenShift and Kubernetes ConfigMaps are really great for this.

However if you need a fine grained control - either extend our Docker image (this is the preferred way) or simply fork and modify it.

Happy configuring and scaling!

Thursday, 1 September 2016

Hotrod clients C/C# 8.0.0.Final released!

Dear Infinispan community,
I'm glad to announce the Final release of the C++ and C# clients version 8.0.0.

You can find the download on the Infinispan web site:

Major new features for this release are:
  • queries
  • remote script execution
  • asynchronous operation (C++ only)
plus several minor and internal updates that partially fill the gap between C++/C# and the Java client.

Some posts about the 8 serie of the C++/C# clients have been already published on this blog, you can recall them clicking through the list below.

The equivalent C# examples are collected here: