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Merge pull request #46687 from sheriff-rh/osdocs-2933.1
OSDOCS-2933 - Java Operator structure
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‎_topic_maps/_topic_map.yml‎

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File: osdk-helm-support
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- Name: Hybrid Helm Operator
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File: osdk-hybrid-helm
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- Name: Java-based Operators
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Dir: java
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Topics:
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- Name: Getting started
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File: osdk-java-quickstart
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- Name: Tutorial
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File: osdk-java-tutorial
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- Name: Project layout
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File: osdk-java-project-layout
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- Name: Defining cluster service versions (CSVs)
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File: osdk-generating-csvs
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- Name: Working with bundle images

‎modules/osdk-common-prereqs.adoc‎

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// * operators/operator_sdk/helm/osdk-helm-tutorial.adoc
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// * operators/operator_sdk/helm/osdk-hybrid-helm.adoc
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// * operators/operator_sdk/osdk-working-bundle-images.adoc
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// * operators/operator_sdk/java/osdk-java-quickstart.adoc
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// * operators/operator_sdk/java/osdk-java-tutorial.adoc
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ifeval::["{context}" == "osdk-ansible-quickstart"]
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:ansible:
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endif::[]
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ifeval::["{context}" == "osdk-ansible-tutorial"]
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:ansible:
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endif::[]
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ifeval::["{context}" == "osdk-golang-quickstart"]
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:golang:
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endif::[]
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ifeval::["{context}" == "osdk-golang-tutorial"]
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:golang:
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endif::[]
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ifeval::["{context}" == "osdk-java-quickstart"]
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:java:
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endif::[]
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ifeval::["{context}" == "osdk-java-tutorial"]
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:java:
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endif::[]
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[id="osdk-common-prereqs_{context}"]
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= Prerequisites
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- link:https://github.com/ansible/ansible-runner-http[Ansible Runner HTTP Event Emitter plug-in] v1.0.0+
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- link:https://pypi.org/project/openshift/[OpenShift Python client] v0.11.2+
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endif::[]
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ifdef::java[]
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- link:https://java.com/en/download/help/download_options.html[Java] v11+
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- link:https://maven.apache.org/install.html[Maven] v3.6.3+
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endif::[]
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- Logged into an {product-title} {product-version} cluster with `oc` with an account that has `cluster-admin` permissions
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- To allow the cluster to pull the image, the repository where you push your image must be set as public, or you must configure an image pull secret
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ifeval::["{context}" == "osdk-ansible-tutorial"]
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:!ansible:
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endif::[]
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ifeval::["{context}" == "osdk-golang-quickstart"]
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:!golang:
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endif::[]
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ifeval::["{context}" == "osdk-golang-tutorial"]
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:!golang:
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endif::[]
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ifeval::["{context}" == "osdk-java-quickstart"]
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:!java:
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endif::[]
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ifeval::["{context}" == "osdk-java-tutorial"]
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:!java:
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endif::[]

‎modules/osdk-quickstart.adoc‎

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:app: nginx
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:group: demo
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endif::[]
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ifeval::["{context}" == "osdk-java-quickstart"]
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:java:
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:type: Java
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:app-proper: Memcached
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:app: memcached
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:group: cache
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endif::[]
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:_content-type: PROCEDURE
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[id="osdk-quickstart_{context}"]
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ifdef::helm[]
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with the `helm` plug-in
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endif::[]
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ifdef::java[]
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with the `quarkus` plug-in
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endif::[]
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to initialize the project:
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+
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[source,terminal,subs="attributes+"]
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--plugins=helm
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----
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endif::[]
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ifdef::java[]
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----
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$ operator-sdk init \
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--plugins=quarkus \
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--domain=example.com
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----
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endif::[]
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. *Create an API.*
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This API uses the built-in Helm chart boilerplate from the `helm create` command.
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endif::[]
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ifdef::java[]
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----
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$ operator-sdk create api \
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--plugins quarkus \
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--group {group} \
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--version v1 \
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--kind {app-proper}
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----
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endif::[]
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. *Build and push the Operator image.*
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:!app-proper:
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:!app:
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endif::[]
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ifeval::["{context}" == "osdk-java-quickstart"]
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:!java:
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:!type:
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:!app-proper:
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:!app:
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endif::[]

‎operators/operator_sdk/java/_attributes‎

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../../../_attributes/

‎operators/operator_sdk/java/images‎

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../../../images/

‎operators/operator_sdk/java/modules‎

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../../../modules/

‎operators/operator_sdk/java/osdk-java-project-layout.adoc‎

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:_content-type: ASSEMBLY
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[id="osdk-java-project-layout"]
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= Project layout for Java-based Operators
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include::_attributes/common-attributes.adoc[]
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:context: osdk-java-project-layout
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:FeatureName: Java-based Operator SDK
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include::snippets/technology-preview.adoc[]
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toc::[]
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The `operator-sdk` CLI can generate, or _scaffold_, a number of packages and files for each Operator project.
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// need to create the module ../osdk-java-project-layout.adoc[leveloffset=+1]

‎operators/operator_sdk/java/osdk-java-quickstart.adoc‎

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:_content-type: ASSEMBLY
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[id="osdk-java-quickstart"]
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= Getting started with Operator SDK for Java-based Operators
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include::_attributes/common-attributes.adoc[]
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:context: osdk-java-quickstart
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:FeatureName: Java-based Operator SDK
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include::snippets/technology-preview.adoc[]
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toc::[]
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To demonstrate the basics of setting up and running a Java-based Operator using tools and libraries provided by the Operator SDK, Operator developers can build an example Java-based Operator for Memcached, a distributed key-value store, and deploy it to a cluster.
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include::modules/osdk-common-prereqs.adoc[leveloffset=+1]
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include::modules/osdk-quickstart.adoc[leveloffset=+1]
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[id="next-steps_osdk-java-quickstart"]
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== Next steps
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* See xref:../../../operators/operator_sdk/java/osdk-java-tutorial.adoc#osdk-java-tutorial[Operator SDK tutorial for Java-based Operators] for a more in-depth walkthrough on building a Java-based Operator.

‎operators/operator_sdk/java/osdk-java-tutorial.adoc‎

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:_content-type: ASSEMBLY
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[id="osdk-java-tutorial"]
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= Operator SDK tutorial for Java-based Operators
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include::_attributes/common-attributes.adoc[]
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:context: osdk-java-tutorial
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:FeatureName: Java-based Operator SDK
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include::snippets/technology-preview.adoc[]
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toc::[]
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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.
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This process is accomplished using two centerpieces of the Operator Framework:
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Operator SDK:: The `operator-sdk` CLI tool and `controller-runtime` library API
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Operator Lifecycle Manager (OLM):: Installation, upgrade, and role-based access control (RBAC) of Operators on a cluster
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[NOTE]
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====
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This tutorial goes into greater detail than xref:../../../operators/operator_sdk/java/osdk-java-quickstart.adoc#osdk-java-quickstart[Getting started with Operator SDK for Java-based Operators].
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====
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include::modules/osdk-common-prereqs.adoc[leveloffset=+1]
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// needs ifevals:
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// include::modules/osdk-create-project.adoc[leveloffset=+1]
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// include::modules/osdk-project-file.adoc[leveloffset=+2]
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// individual java modules go here
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//
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// include::modules/osdk-golang-manager.adoc[leveloffset=+2]
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// include::modules/osdk-golang-multi-group-apis.adoc[leveloffset=+2]
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//
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// include::modules/osdk-golang-create-api-controller.adoc[leveloffset=+1]
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// include::modules/osdk-golang-define-api.adoc[leveloffset=+2]
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// include::modules/osdk-golang-generate-crd.adoc[leveloffset=+2]
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// include::modules/osdk-about-openapi-validation.adoc[leveloffset=+3]
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//
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// include::modules/osdk-golang-implement-controller.adoc[leveloffset=+1]
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//
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// The next subsections explain how the controller in the example implementation watches resources and how the reconcile loop is triggered. You can skip these subsections to go directly to xref:../../../operators/operator_sdk/golang/osdk-golang-tutorial.adoc#osdk-run-operator_osdk-golang-tutorial[Running the Operator].
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//
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// include::modules/osdk-golang-controller-resources.adoc[leveloffset=+2]
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// include::modules/osdk-golang-controller-configs.adoc[leveloffset=+2]
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// include::modules/osdk-golang-controller-reconcile-loop.adoc[leveloffset=+2]
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// include::modules/osdk-golang-controller-rbac-markers.adoc[leveloffset=+2]
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// needs ifevals:
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// include::modules/osdk-run-proxy.adoc[leveloffset=+1]
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// include::modules/osdk-run-operator.adoc[leveloffset=+1]
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// include::modules/osdk-run-locally.adoc[leveloffset=+2]
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// include::modules/osdk-run-deployment.adoc[leveloffset=+2]
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[id="osdk-bundle-deploy-olm_{context}"]
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=== Bundling an Operator and deploying with Operator Lifecycle Manager
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// need ifevals:
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// include::modules/osdk-bundle-operator.adoc[leveloffset=+3]
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// include::modules/osdk-deploy-olm.adoc[leveloffset=+3]
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//
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// include::modules/osdk-create-cr.adoc[leveloffset=+1]
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[role="_additional-resources"]
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[id="additional-resources_osdk-java-tutorial"]
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== Additional resources
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- See xref:../../../operators/operator_sdk/java/osdk-java-project-layout.adoc#osdk-java-project-layout[Project layout for Java-based Operators] to learn about the directory structures created by the Operator SDK.
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- If a xref:../../../networking/enable-cluster-wide-proxy.adoc#enable-cluster-wide-proxy[cluster-wide egress proxy is configured], cluster administrators can xref:../../../operators/admin/olm-configuring-proxy-support.adoc#olm-configuring-proxy-support[override the proxy settings or inject a custom CA certificate] for specific Operators running on Operator Lifecycle Manager (OLM).

‎operators/operator_sdk/java/snippets‎

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../../../snippets/

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