# harbor | Harbor | Knowledge Base | Instagit An open source trusted cloud native registry project that stores, signs, and scans content. GitHub Stars: 28.2k Repository: https://github.com/goharbor/harbor --- ## Articles ### [How to Export Vulnerability Scan Results from Harbor: Complete API Workflow Guide](/goharbor/harbor/how-to-export-harbor-scan-results) Easily export vulnerability scan results from Harbor using the API. Learn the complete workflow to generate CSV files with detailed vulnerability data for your images. - Tags: how-to-guide - Published: 2026-04-09 ### [How Harbor Job Service Manages Worker Pools: Redis-Backed Architecture](/goharbor/harbor/how-harbor-job-service-manages-workers) Discover how Harbor's Job Service manages worker pools with its Redis-backed architecture. Learn about automatic registration, reflection-based ID extraction, and reliable job re-queuing for background tasks. - Tags: internals - Published: 2026-04-09 ### [What Is the RegistryCtl Component in Harbor? Purpose and Architecture Explained](/goharbor/harbor/purpose-of-harbor-registryctl) Understand the Harbor RegistryCtl component. Learn how this secure bridge manages privileged registry operations via a REST API, protecting your Docker distribution. - Tags: deep-dive - Published: 2026-04-09 ### [How to Monitor Harbor's Performance and Health: Complete Observability Guide](/goharbor/harbor/how-to-monitor-harbor-performance) Monitor Harbor performance and health with Prometheus and Grafana. Explore our guide to leveraging Harbor's health status API and metrics for production-grade observability. - Tags: how-to-guide - Published: 2026-04-09 ### [Benefits of Using Harbor for Cloud Native Environments: Enterprise Registry Features Explained](/goharbor/harbor/benefits-of-using-harbor-cloud-native) Discover Harbor's enterprise registry features benefits for cloud native environments. Enhance security, RBAC, and Helm chart support for Kubernetes workflows. Learn more today. - Tags: benefits - Published: 2026-04-09 ### [How Harbor Handles Storage Quotas: Project-Level Limits and Enforcement](/goharbor/harbor/how-harbor-handles-storage-quotas) Discover how Harbor handles storage quotas at the project level. Learn about its dual-middleware enforcement and PostgreSQL integration for efficient capacity management. - Tags: how-to-guide - Published: 2026-04-09 ### [Harbor Helm Chart Support: Storing, Distributing, and Securing Charts as Native Artifacts](/goharbor/harbor/harbor-helm-chart-support) Harbor offers native OCI registry support for Helm charts, enabling storing, distributing, and securing them as first-class artifacts. Manage your complete chart lifecycle with ease. - Tags: deep-dive - Published: 2026-04-09 ### [How to Set Up Role-Based Access Control (RBAC) in Harbor: A Complete Implementation Guide](/goharbor/harbor/how-to-set-up-harbor-rbac) Implement role-based access control RBAC in Harbor. This guide details setting up user and robot account permissions for secure resource management within your projects. - Tags: how-to-guide - Published: 2026-04-09 ### [Harbor Enterprise Identity Provider Integration: LDAP/AD and OIDC Authentication Explained](/goharbor/harbor/harbor-ldap-ad-oidc-integration) Learn how Harbor enterprise identity provider integration works with LDAP/AD and OIDC. Securely authenticate users and manage access with Harbor's unified framework. - Tags: how-to-guide - Published: 2026-04-09 ### [Image Signing in Harbor: Supported Methods and Implementation Guide](/goharbor/harbor/harbor-image-signing-methods) Explore Harbor's image signing methods including Docker Content Trust Notary v1 Cosign and Notation Notary v2 Learn how to implement secure image verification and policy enforcement. - Tags: how-to-guide - Published: 2026-04-09 ### [How to Configure Tag Retention Policies in Harbor: A Complete Guide](/goharbor/harbor/how-to-configure-harbor-tag-retention-policies) Master Harbor tag retention policies. Learn to automatically clean up old image tags with this complete guide. Configure retention rules easily via UI or API. - Tags: how-to-guide - Published: 2026-04-09 ### [Harbor Garbage Collection: Architecture, Capabilities, and API Usage](/goharbor/harbor/harbor-garbage-collection-capabilities) Explore Harbor's garbage collection capabilities for efficient artifact management. Learn how to remove unreferenced blobs and tags with jobs, schedules, and dry-run support. - Tags: architecture - Published: 2026-04-09 ### [How Harbor's Replication Controller Works: Policy and Execution Architecture](/goharbor/harbor/how-harbor-replication-controller-works) Understand Harbor's Replication Controller. Learn how this orchestrator manages policies and executes cross-registry synchronization using a worker pool for efficient data management. - Tags: internals - Published: 2026-04-09 ### [What Is the Role of the Controller Layer in Harbor?](/goharbor/harbor/role-of-harbor-controller-layer) Discover the role of the Controller Layer in Harbor. It coordinates business logic, manages database transactions, enforces policies, and publishes events for seamless operations. - Tags: internals - Published: 2026-04-09 ### [Harbor Web Portal Management: Complete Guide to the Angular UI](/goharbor/harbor/how-to-use-harbor-web-portal) Master Harbor web portal management with our complete Angular UI guide. Effortlessly control projects, repositories, users, and system settings through an intuitive interface. Simplify your container registry operations today. - Tags: how-to-guide - Published: 2026-04-09 ### [How Harbor Uses Redis: Architecture, Caching, and Job Coordination](/goharbor/harbor/how-redis-is-used-in-harbor) Discover how Harbor leverages Redis for caching, manifest storage, job coordination, and connection limiting. Understand its role in Harbor's architecture and performance. - Tags: architecture - Published: 2026-04-09 ### [What Database Does Harbor Use and What Is It Used For?](/goharbor/harbor/what-database-does-harbor-use) Harbor uses PostgreSQL for its database to store user data project info scan results and system configuration Learn how Harbor leverages PostgreSQL for efficient operation - Tags: deep-dive - Published: 2026-04-09 ### [How Harbor Performs Vulnerability Scanning: Architecture and Implementation](/goharbor/harbor/how-harbor-performs-vulnerability-scanning) Discover how Harbor performs vulnerability scanning. Learn about its pluggable architecture, asynchronous jobs, and integration with Trivy for robust security. - Tags: architecture - Published: 2026-04-09 ### [Harbor Job Service: Architecture, Implementation, and Background Task Management](/goharbor/harbor/purpose-of-harbor-job-service) Discover Harbor Job Service architecture and implementation. Learn how this background processing engine manages asynchronous tasks for the Harbor container registry platform effectively. - Tags: architecture - Published: 2026-04-09 ### [How to Manage Projects and Access Control in Harbor: Complete RBAC Implementation](/goharbor/harbor/how-to-manage-harbor-projects-and-access-control) Learn to manage projects and access control in Harbor with a complete RBAC implementation. Enforce permissions effectively using policy maps for enhanced security. - Tags: how-to-guide - Published: 2026-04-09 ### [How Harbor Handles LDAP, OIDC, and UAA Authentication: A Source Code Analysis](/goharbor/harbor/harbor-authentication-methods) Explore how Harbor's source code manages LDAP, OIDC, and UAA authentication via pluggable security middleware for unified security contexts and RBAC evaluation. - Tags: architecture - Published: 2026-04-09 ### [Core Components of Harbor: Enterprise Registry Architecture Explained](/goharbor/harbor/what-are-harbor-core-components) Explore the eight core components of Harbor: Core, Portal, Registry, Job Service, Trivy, PostgreSQL, Redis, and Nginx. Understand the enterprise registry architecture and its advanced features. - Tags: architecture - Published: 2026-04-09