goharbor/harbor - Open Source PR Review Scorecard

An open source trusted cloud native registry project that stores, signs, and scans content.

C-Rank Grade: A (Welcoming) - 57/100

External PR Merge Rate: 52%

Response Time: 2d

First Timer Success: 34%

Frequently Asked Questions

Is goharbor/harbor welcoming to first-time open-source contributors?

goharbor/harbor has a recorded first-timer success rate of 34.1%. Repositories ranked A typically provide actionable feedback during code reviews and actively nurture new community contributors.

How fast can I expect code review feedback on my pull request?

Maintainers in goharbor/harbor respond to incoming external pull requests in approximately 44.5 hours on average. Keeping PRs focused on single tasks and ensuring tests pass helps maintainers review faster.

What does the 56.6 C-Rank™ score (A Tier) represent?

The C-Rank™ system evaluates GitHub projects on a 0–100 scale using real data: PR merge rates, review turnaround time, active maintainer presence, and first-time contributor success. A score of 56.6 places goharbor/harbor in the A tier.

What is the external contributor pull request merge rate for goharbor/harbor?

The external contributor pull request merge rate for goharbor/harbor is 52.2%, based on public PR activity from non-core contributors.

Are there Good First Issues available in goharbor/harbor?

goharbor/harbor currently has 3 active issue(s) tagged with beginner-friendly labels like "good first issue", "beginner", or "up-for-grabs".

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An open source trusted cloud native registry project that stores, signs, and scans content.

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AI Maintainer Review Guidelines

Review Persona

High-Friction Gatekeeper

Warmth Score
5.0/10
Patience Score
6.0/10
Nitpick Rate
65%

Rigorous architecture standards (100% critical review signals). Ensure PRs strictly follow guidelines before requesting review in goharbor/harbor.

Top PR Submission Do's

  • •Add unit tests with >80% coverage for modified code paths
  • •Use conventional commit messages and clean branch names
  • •Link relevant GitHub issue ID in PR description pre-flight checklist

Top PR Friction Pitfalls (Don'ts)

  • •Do not submit unlinked PRs without referencing an existing issue
  • •Do not mix refactoring and feature logic into a single commit
  • •Do not ping maintainers repeatedly within 24 hours of opening
Response Velocity
1 days+
Standard maintainer review cycle

Average Response Latency

Tracks hours until a maintainer leaves a review, comment, or PR response.

Merge Efficiency
52.2%
Moderate PR acceptance rate

External Acceptance Rate

Percentage of community pull requests successfully merged into main.

First-Timer Success
34.1%
Accepts new contributor PRs

First PR Conversion

Rate at which developers submitting their first repository PR succeed.

Active Maintainers
50 core
Highly collaborative maintainer core
Diagnostic Health HUD
52.2%
Merge Gauge
34.1%
1st-Timer
Community Vibe31/100

Embed C-Rank Badge

Show contributors that your repository actively reviews and merges external pull requests.

GetMerged C-Rank badge for goharbor/harbor
[![GetMerged C-Rank](https://getmerged.abhishekco.de/api/badge/goharbor/harbor)](https://getmerged.abhishekco.de/goharbor/harbor?utm_source=github&utm_medium=badge)

Active Good First Issues (5)

View on GitHub

The nightly pipeline db_offline always failed at the testcase system_cve testcase. failed screenshot failed log.html log.html It seems that the date time picker failed to find the previous/next day of current day.

📅 Opened Aug 4, 2026💬 1 comment
Quality: 35/100Contribute

Is your feature request related to a problem? Our organization is deploying Harbor using the official Helm chart with an external PostgreSQL database. While the Harbor documentation mentions support for external PostgreSQL (12 or later), it does not explicitly validate or document support for PostgreSQL 16, 17, and 18. Our organization requires using the latest PostgreSQL major versions to meet security, compliance, and infrastructure standardization requirements. Describe the solution you'd like Please add official support and validation for PostgreSQL 16, 17, and 18 when deploying Harbor using the official Helm chart with an external PostgreSQL database. Why is this needed? Organizations are adopting newer PostgreSQL major versions as part of their standard platform. Using the latest supported database versions provides access to security updates, performance improvements, and long-term support. Official compatibility documentation would help users confidently deploy Harbor with new

📅 Opened Jul 15, 2026💬 6 comments
Quality: 40/100Contribute

I have a namespace named harbor in my k8s cluster. trivy returns an error and does not find vulnerabilities in the images: {"error":"running trivy wrapper: running trivy: exit status 1: 2026-07-08T13:10:44.337Z\t\u001b[34mINFO\u001b[0m\tNeed to update DB\n2026-07-08T13:10:44.337Z\t\u001b[34mINFO\u001b[0m\tDownloading DB...\n2026-07-08T13:11:15.867Z\t\u001b[31mFATAL\u001b[0m\tfailed to download vulnerability DB: failed to download vulnerability DB: DB file not found\n","level":"error","msg":"Scan job failed","scan_job_id":"7ac89af31d68e0b3cb4265d7","time":"2026-07-08T13:11:16Z"}. If I go to the node where the scanner is located and checked the availability of remote resources: [root@node7 ~]# curl -k https://ghcr.io/aquasecurity/trivy-db:2 [root@node7 ~]# curl -k https://ghcr.io/v2/ [root@node7 ~]# curl -k https://github.com [root@node7 ~]# curl -k https://api.github.com [root@node7 ~]# curl -k github-releases.githubusercontent.com and # curl -k https://140.82.121.33/ <!DOCTYPE htm

📅 Opened Jul 8, 2026💬 8 comments
Quality: 80/100Contribute

Is your feature request related to a problem? Please describe. When replicating images from Harbor to AWS ECR, Harbor checks if a repository exists and automatically creates it if it does not. This breaks AWS ECR repository creation templates, because ECR templates are only applied when the repository is created automatically by ECR itself (create-on-push). As a result, replicated repositories are created with default settings instead of the expected configuration (immutability, lifecycle policies, encryption, tags, etc.). Describe the solution you'd like Add an optional replication setting like “Create repository if not exists” (enabled by default for backward compatibility). When disabled, Harbor should not call CreateRepository on the target registry. Harbor should attempt to push images directly and let the target registry auto-create the repository. If creation templates are not enabled the replication will fail with "repository not found". Describe the main design/architectur

📅 Opened Feb 12, 2026💬 3 comments
Quality: 30/100Contribute

I just installed harbor and opened the ui on my mobile Phone. The interface can not be used inside a Chrome Browser on an Android Phone. Are there any Plans for a responsive interface?

📅 Opened Feb 1, 2026💬 6 comments
Quality: 15/100Contribute
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Contributor Compatibility & Review Speed Analysis for goharbor/harbor

When evaluating whether to contribute to goharbor/harbor, response velocity and maintainer engagement are crucial. GetMerged continuously tracks pull request trajectories, first-comment latency, and code review rounds to help developers avoid submitting pull requests to backlogged repositories.

Currently, maintainers of goharbor/harbor acknowledge new external contributions in approximately 1 days+. Out of all submitted pull requests from non-core authors in the last 180-day window, 52.2% were successfully merged into the primary branch.

Frequently Asked Questions - Contributing to goharbor/harbor

01

Is goharbor/harbor welcoming to first-time open-source contributors?

goharbor/harbor has a recorded first-timer success rate of 34.1%. Repositories ranked Welcoming typically provide actionable feedback during code reviews and actively nurture new community contributors.

02

How fast can I expect code review feedback on my pull request?

The initial maintainer response time averages ~1 days+. Keeping PRs scoped to single concerns and ensuring CI checks succeed will optimize review turnaround.

03

What does the 56.6 C-Rank™ score represent?

The C-Rank™ index scores repositories on a 0 to 100 scale using an objective formula: external PR merge rates, initial response speed, active maintainer count, and first-time contributor retention. A score of 56.6 places goharbor/harbor in the Welcoming tier.

04

What is the external contributor pull request merge rate for goharbor/harbor?

The external pull request merge rate is 52.2%. GetMerged isolates non-core community contributions so external developers get an accurate benchmark of PR acceptance probability.

05

Are there beginner Good First Issues open in goharbor/harbor?

Yes, goharbor/harbor currently has 3 active issue(s) tagged with beginner-friendly labels. You can inspect these directly from the repository issues tab.

GetMerged C-Rank™ Indexing Standard

All metrics displayed for goharbor/harbor are automatically retrieved via the public GitHub API and recalculated daily. Insider pull requests submitted by repository owners or organization members are excluded from merge rate calculations to preserve objective external contributor statistics.