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Chapter 1. Builds release notes
Release notes contain information about new and deprecated features, breaking changes, and known issues. The following release notes apply for the most recent Builds releases on OpenShift Container Platform.
Builds is an extensible build framework based on the Shipwright project, which you can use to build container images on an OpenShift Container Platform cluster. You can build container images from source code and Dockerfiles by using image build tools, such as Source-to-Image (S2I) and Buildah. You can create and apply build resources, view logs of build runs, and manage builds in your OpenShift Container Platform namespaces.
Builds includes the following capabilities:
- Standard Kubernetes-native API for building container images from source code and Dockerfiles
-
Support for Source-to-Image (S2I) and
Buildahbuild strategies - Extensibility with your own custom build strategies
- Execution of builds from source code in a local directory
- Shipwright CLI for creating and viewing logs, and managing builds on the cluster
- Integrated user experience with the Developer perspective of the OpenShift Container Platform web console
For more information about Builds, see "Overview of Builds".
1.1. Compatibility and support matrix
In the table, components are marked with the following statuses:
| TP | Technology Preview |
| GA | General Availability |
The Technology Preview features are experimental features and are not intended for production use.
| Builds Version | Component Version | Compatible Openshift Pipelines Version | OpenShift Version | Support | |
|---|---|---|---|---|---|
| Operator | Builds (Shipwright) | CLI | |||
| 1.8 | 0.19.0 (GA) | 0.19.0 (GA) | 1.20-1.22 | 4.17-4.21 | GA |
| 1.7 | 0.18.0 (GA) | 0.18.0 (GA) | 1.18-1.21 | 4.16-4.21 | GA |
1.2. Release notes for Builds 1.8
Builds 1.8 is now available on OpenShift Container Platform 4.17.
1.2.1. New features
The following sections highlight what is new in Builds 1.8:
- Resource overrides for build steps
-
With this update, you can define a
stepResourcesfield in theBuildandBuildRunAPIs to override CPU, memory, or ephemeral storage for specific steps. Before this update, resource requirements were hard-coded at the strategy level, which often necessitated duplicating strategies. This enhancement allows for fine-grained resource customization directly withinBuildorBuildRunspecifications without modifying sharedBuildStrategyorClusterBuildStrategydefinitions. - Support for custom runtime classes in builds
-
With this update, you can define a
runtimeClassNamefield in theBuildandBuildRunAPIs to select specific container runtimes for the build pod. You can run builds in sandboxed environments, such as Kata Containers, for hypervisor-level isolation. This is useful when building from untrusted sources or when compliance policies require stronger workload isolation than the default container runtime provides.
Builds in sandbox containers 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 Technology Preview Features Support Scope.
1.2.2. Fixed issues
- OpenShift Builds CLI version aligned with Builds for Red Hat OpenShift
- Before this update, the shp CLI available for download on console.redhat.com reported version 0.14.0 with no additional build information. This version corresponded to the Builds 1.3 release, which has reached end of life, and did not match the current Builds for Red Hat OpenShift product version. With this update, the CLI available at console.redhat.com aligns with the latest release of Builds for Red Hat OpenShift and reports the correct product version.
- Memory leak fix for shared resource CSI Driver
-
Before this update, unregistered callbacks for config maps and secrets in the shared resource CSI Driver caused high memory usage. As a consequence, shared resource mount failures occurred. With this update, the shared resource CSI Driver unregisters callbacks correctly. This fix reduces memory usage and prevents the
OOMKillof shared resource CSI Driver pods, which improves resource mounting for users.
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