Migrating from v4.2 to v4.3 #

Condition API Change #

In Workflows the target of the condition was the managed resource itself, not the target dependent resource. This changed, now the API contains the dependent resource.

New API:

public interface Condition<R, P extends HasMetadata> {

    boolean isMet(DependentResource<R, P> dependentResource, P primary, Context<P> context);

}

Former API:

public interface Condition<R, P extends HasMetadata> {

    boolean isMet(P primary, R secondary, Context<P> context);

}

Migration is trivial. Since the secondary resource can be accessed from the dependent resource. So to access the secondary resource just use dependentResource.getSecondaryResource(primary,context).

HTTP client choice #

It is now possible to change the HTTP client used by the Fabric8 client to communicate with the Kubernetes API server. By default, the SDK uses the historical default HTTP client which relies on Okhttp and there shouldn’t be anything needed to keep using this implementation. The tomcat-operator sample has been migrated to use the Vert.X based implementation. You can see how to change the client by looking at that sample POM file:

• You need to exclude the default implementation (in this case okhttp) from the operator-framework dependency
• You need to add the appropriate implementation dependency, kubernetes-httpclient-vertx in this case, HTTP client implementations provided as part of the Fabric8 client all following the kubernetes-httpclient-<implementation name> pattern for their artifact identifier.