operator-framework/java-operator-sdk

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Java SDK for building Kubernetes Operators

Stars: 944
Forks: 242
Open beginner issues: 0
Indexed issues: 52
Avg merge: 1d 4h
Merged PRs (30d): 43

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 16, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

Beginner friendly Everything

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52 open issues indexed

Colliding root-level version.properties can misreport the SDK version Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

operator-framework/java-operator-sdk#3627 · Opened Sep 18, 2026
Method Reconciler#reconcile is not triggered when resource is deleted. Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

operator-framework/java-operator-sdk#3621 · 5 comments · Opened Sep 17, 2026
Informer start under the workflow executor's monitor serializes the first reconciliation Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

operator-framework/java-operator-sdk#3617 · 1 comment · Opened Sep 15, 2026
Allow disabling or removing the default namespace index of an event source's informer Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

operator-framework/java-operator-sdk#3615 · 1 comment · 3 reactions · Opened Sep 14, 2026
Set baseline Java version to 21 Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

operator-framework/java-operator-sdk#3568 · 1 comment · 1 reaction · Opened Aug 20, 2026
Simple core and layered reconciler implementation for v6 Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#3563 · Opened Aug 17, 2026
Support for Virtual Threads Open

operator-framework/java-operator-sdk#3538 · 2 comments · 2 assignees · Opened Aug 6, 2026
Generic active-active reconciliation: an ownership/coordination control plane to complement shardSelector Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#3498 · 1 reaction · Opened Jul 15, 2026
InformerEventSource public API refinements Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

operator-framework/java-operator-sdk#3452 · Opened Jun 30, 2026
Marking public APIs with `@Public` annotation Open

operator-framework/java-operator-sdk#3419 · 1 assignee · Opened Jun 16, 2026
Reconciler with enabled "generationAwareEventProcessing" reconciles unchanged custom resource upon startup Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

operator-framework/java-operator-sdk#3274 · 5 comments · Opened Apr 7, 2026
Passing configuration as POJOs (v6) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#3181 · 5 comments · Opened Feb 24, 2026
Handling of primary resource in Context Open

operator-framework/java-operator-sdk#3143 · 1 assignee · Opened Jan 30, 2026
read-cache-after-write consistency and event filtering for deletes Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

operator-framework/java-operator-sdk#3117 · 1 comment · Opened Jan 9, 2026
Add a form of common aspect to that can labels or other metadata to the resources created/managed by the operator Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

operator-framework/java-operator-sdk#3094 · Opened Dec 15, 2025
GenericRetry refactor (v6) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#2935 · Opened Sep 7, 2025
Document differences between infrastructure and "operator" client for test infrastructure Open

operator-framework/java-operator-sdk#2924 · 1 comment · 1 assignee · Opened Aug 29, 2025
[Dependent Resources] Don't update the resource spec if has an other owner reference with controller true Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

operator-framework/java-operator-sdk#2919 · Opened Aug 28, 2025
Custom bootstrap and CR lifecycle management Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#2884 · 9 comments · Opened Aug 5, 2025
Primary as an external resource Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#2807 · 12 comments · Opened May 16, 2025
Removing update/patch methods from `UpdateControl` Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#2797 · Opened May 14, 2025
Allow just registerPredicate for the polling to be overridden/configured for PerResourcePollingDependentResources Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

operator-framework/java-operator-sdk#2783 · 6 comments · Opened May 6, 2025
Priority Queues Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

operator-framework/java-operator-sdk#2754 · 1 comment · 1 reaction · Opened Apr 4, 2025
Support GenericKubernetesResource as primary resource Open

on-demand

Difficulty 4/5 3-5 days Newbie friendliness 25/100

operator-framework/java-operator-sdk#2716 · Opened Feb 28, 2025
Graceful shutdown for controller's namespace deletion Open

operator-framework/java-operator-sdk#2522 · 1 assignee · Opened Aug 29, 2024
Investigate suspicious class reference in YAML loader Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

operator-framework/java-operator-sdk#2484 · Opened Aug 8, 2024
[Feature Request/Question] Controller watch namespaces based on labels (and event sources) Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

operator-framework/java-operator-sdk#2434 · 4 comments · 1 reaction · Opened Jun 13, 2024
Improve Release - Proper Tagging Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

operator-framework/java-operator-sdk#2304 · 6 comments · Opened Mar 21, 2024
Automatically Delete Resource if Dependent Removed From Workflow Open

feature

Difficulty 5/5 Over a week Newbie friendliness 30/100

operator-framework/java-operator-sdk#2267 · Opened Mar 7, 2024
Consider composable non-CRD blocks for workflows / dependencies Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#2256 · 12 comments · Opened Feb 29, 2024
Inject config into a KubernetesDependentResource Open

kind/documentation lifecycle/stale

operator-framework/java-operator-sdk#2087 · 5 comments · 2 assignees · Opened Oct 11, 2023
Remove possibility to set watched namespace in `@ControllerConfiguration` Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

operator-framework/java-operator-sdk#2079 · 3 comments · Opened Oct 6, 2023
Consider removing `Cloner` interface Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#2027 · 5 comments · Opened Aug 23, 2023
Mark Framework Version in Resources to Support Framework Related Updates Open

feature

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#1958 · 1 comment · Opened Jun 21, 2023
Makefile bundle-build incorrect path to bundle.Dockerfile Open

lifecycle/stale

operator-framework/java-operator-sdk#1879 · 10 comments · 1 assignee · Opened May 2, 2023
Namespace deletion stuck if contains CRs that are watched by the operator Open

operator-framework/java-operator-sdk#1876 · 10 comments · 3 reactions · 1 assignee · Opened Apr 27, 2023
Performance Tests Open

operator-framework/java-operator-sdk#1785 · 2 assignees · Opened Feb 27, 2023
Introduce "after" Relation in Workflows Open

feature needs-discussion workflows

operator-framework/java-operator-sdk#1774 · 4 comments · 1 assignee · Opened Feb 16, 2023
Support Recreate for External Dependent Resources Open

api-changes-epic dependent-resources-epic feature

operator-framework/java-operator-sdk#1717 · 1 reaction · 1 assignee · Opened Jan 12, 2023
Investigate: "Please check the 'sonar.projectKey'" Open

lifecycle/stale

Difficulty 4/5 3-5 days Newbie friendliness 25/100

operator-framework/java-operator-sdk#1693 · 6 comments · Opened Jan 3, 2023
Support Pruned Cache in Dependent Resources Open

dependent-resources-epic kind/feature lifecycle/stale

operator-framework/java-operator-sdk#1638 · 6 comments · 1 assignee · Opened Nov 30, 2022
Corner Case: Clenup Processing for Delete Event Without Finalizer Open

feature

Difficulty 4/5 3-5 days Newbie friendliness 35/100

operator-framework/java-operator-sdk#1597 · 3 comments · Opened Nov 14, 2022
Resource Event Source for Notification Based External Events Open

eventsources-epic feature on-demand

Difficulty 5/5 Over a week Newbie friendliness 35/100

operator-framework/java-operator-sdk#1514 · Opened Oct 4, 2022
How Can I trigger a Reconcile by my own code? Open

needs-discussion

operator-framework/java-operator-sdk#1398 · 2 comments · 1 assignee · Opened Aug 14, 2022
Multi Cluster Support Open

feature

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#1308 · 11 comments · 5 reactions · Opened Jun 30, 2022
Feature: tight up the integration with extra eventSources Open

feature kind/feature

Difficulty 4/5 3-5 days Newbie friendliness 35/100

operator-framework/java-operator-sdk#826 · 8 comments · Opened Jan 13, 2022
Apply CRDs on startup of operator Open

help wanted needs-discussion

operator-framework/java-operator-sdk#807 · 1 comment · 2 assignees · Opened Jan 10, 2022
Provide Gradle sample projects Open

feature kind/feature

Difficulty 4/5 3-5 days Newbie friendliness 35/100

operator-framework/java-operator-sdk#806 · 1 comment · 1 reaction · Opened Jan 10, 2022
Support for Reactive Programing Model Open

exploratory feature needs-discussion

operator-framework/java-operator-sdk#766 · 11 reactions · 1 assignee · Opened Dec 20, 2021
Main (and v1) Branch Protection Rules and PR enforcement Open

github_actions needs-discussion

Difficulty 5/5 Over a week Newbie friendliness 25/100

operator-framework/java-operator-sdk#712 · Opened Nov 25, 2021

operator-framework/java-operator-sdk

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