Friday, 24 January 2020
We’re pleased to announce version 1.1.0 of the Infinispan Operator for Kubernetes and OpenShift.
This release includes a bunch of very exciting features! Let’s dig into them:
Infinispan Operator 1.1.0 is rated at the
Full Lifecycle capacity level, which means the Operator now provides advanced cluster management capabilities and functionality to handle demanding workloads.
One of the key new features in this release is graceful shutdown, which lets you bring clusters down safely to avoid data loss.
During cluster shutdown, caches can passivate in-memory entries to persistent storage along with the internal Infinispan state that maps which nodes own which entries. When you bring Infinispan clusters back, all your data is restored to memory.
Check out the Graceful Shutdown docs for more information.
Graceful shutdown also enables the Infinispan Operator to perform reliable upgrades.
When a new version of the Infinispan Operator starts, it checks for running Infinispan clusters that were created by an older Operator version.
If the Operator detects a cluster that requires upgrade, it invokes a graceful shutdown on the cluster and then brings it back with the new Infinispan version.
You can perform upgrade manually or automatically with the Operator Lifecycle Manager on OpenShift.
Note that Operators installed via the OperatorHub on OpenShift Container Platform are managed by the Operator Lifecyle Manager.
This version of the Infinispan Operator delivers Cache and DataGrid services.
By default the Operator starts Infinispan clusters as Cache services, which provides a quick way to set up in-memory caching that stores data off-heap and keeps single copies of data in the cluster.
DataGrid services, on the other hand, are suited to more advanced use cases where you control and define the configuration that you need.
The Infinispan Operator simplifies cross-site replication set up with DataGrid services so you can back data up between separate Kubernetes or OpenShift clusters.
All you need to do is specify which type of external Kubernetes service to expose, the list of all backup locations, access secrets, and the local site name.
Find out more at: Cross-Site Replication
If you’re running on Openshift and have a service that serves certificates, the Operator automatically asks for certificates sets up TLS for your endpoint connections. Encrypted by default with zero effort!
Try the simple tutorial for the Operator, which has been updated for this version. The tutorial shows how to install the Operator manually, but it can also be installed via the Operator Hub on OpenShift.
Finally, a detailed list of issues and features for this version can be found here.
Tags: release operator
Friday, 12 July 2019
Infinispan Operator 0.3.0 is now available with expanded configuration and security options:
With this release of the Infinispan Operator, you can configure explicit CPU and memory limits for individual containers. The defaults are 0.5 CPUs and 512Mi of memory.
The Operator also lets you pass extra JVM options, which is useful for tracking native memory consumption or extra GC logging parameters.
Starting with 0.3.0, credentials are automatically generated for data connector and management users when you instantiate the Infinispan Operator.
The default usernames are developer and admin for the data connector user and management user, respectively.
Generated passwords are stored in Kubernetes Secret instances. You can extract the passwords as follows:
For convenience, the default usernames are also stored in the secret. Using the jq command line tool, you can inspect both the username and password values with a single command:
If you want to set custom credentials for the data connector and management users, create Kubernetes Secret instances as follows:
When using a Credentials type authentication, the referenced secrets must contain username and password fields.
The easiest way to get started with the Infinispan Operator is via the simple tutorial. The Operator is compatible with vanilla Kubernetes environments, such as Minikube, as well as Red Hat OpenShift.
Install the Infinispan Operator directly from the Operator Hub, which is available out of the box on all OpenShift 4 versions. If you’re using a vanilla Kubernertes environment, you might need to install the Operator Lifecycle Manager before you can install via the Operator Hub.
The Infinispan Operator is also included in the community for Kubernetes Operators is available from operatorhub.io.
The Operator configuration does not yet provide all capabilities available for Infinispan servers. We’re working through a process of configuration specification that distills the server configuration into a simple, easy to use, set of configuration options. The current proposal is being discussed openly here.
Infinispan 10 brings a brand new server that’s no longer based on WildFly. The Operator 0.x series will remain focused on Infinispan 9.x server, with Operator 1.x series focusing on Infinispan 10 and onwards.
Tags: release openshift kubernetes operator
Monday, 08 April 2019
We’ve just completed the release of the Infinispan Operator version 0.2.1. In this second minor release, we’ve added the following features:
Cluster nodes now discover each other using DNS ping, which uses name lookups. Each node publishes a headless service which they use to locate each other. Previously, Kubernetes APIs were queried to discover other nodes, but this required administrator rights. DNS ping does not require admin permissions.
You can now provide their own custom Infinispan server XML referencing an existing ConfigMap:
Note that this example requires a ConfigMap with the XML file to be created before hand.
Tags: release openshift operator beta release
Monday, 04 March 2019
Infinispan Operator is a new method of packaging, deploying and managing Infinispan clusters on OpenShift. You can think of the Infinispan Operator as the runtime that manages Infinispan clusters on OpenShift.
We’ve just done our first Infinispan Operator pre-release, version 0.1.0, which allows you to easily boot up an Infinispan cluster on OpenShift.
Using the operator is as simple as installing the Infinispan Operator (requires admin access) on OpenShift, and then create a YAML descriptor that defines the Infinispan cluster. The example below shows how to create a 3-node Infinispan cluster:
And then call:
$ oc apply -f example-infinispan.yaml
A more detailed tutorial on using the Infinispan Operator can be found here. We highly recommend you give it a go and let us know what you think.
Over the next few versions we’ll be adding more features that make the most of the capabilities the Operator framework offers to automatically manage the health and status of running Infinispan clusters.
Please also note that as we work towards the 1.0 release, some things might change :)
Tags: release openshift operator beta