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Java-based Operator SDK is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process. For more information about the support scope of Red Hat Technology Preview features, see https://access.redhat.com/support/offerings/techpreview/. |
Operator developers can take advantage of Java programming language support in the Operator SDK to build an example Java-based Operator for Memcached, a distributed key-value store, and manage its lifecycle.
This process is accomplished using two centerpieces of the Operator Framework:
The operator-sdk CLI tool and controller-runtime library API
Installation, upgrade, and role-based access control (RBAC) of Operators on a cluster
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This tutorial goes into greater detail than Getting started with Operator SDK for Java-based Operators. |
See Project layout for Java-based Operators to learn about the directory structures created by the Operator SDK.
If a cluster-wide egress proxy is configured, cluster administrators can override the proxy settings or inject a custom CA certificate for specific Operators running on Operator Lifecycle Manager (OLM).