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cert-manager project preview
SecurityAlternative to AWS Certificate ManagerAlternative to DigiCertAlternative to Venafi

cert-manager

Automated TLS certificate management and issuance controller for Kubernetes.

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LicenseApache-2.0
GitHub stars12.5k
Last commit1 weeks ago
Tags6 topics
Lets Encrypt K8sX509 AutomationAcme IssuerTls Certificate ControllerDevopsSecurity
Overview

Why consider cert-manager?

cert-manager is an open-source X.509 certificate management controller for Kubernetes written in Go by CNCF. It automates certificate issuance and renewal from Let's Encrypt (ACME), HashiCorp Vault, Venafi, and internal CAs, binding TLS secrets directly to Kubernetes Ingresses.

Guided learning

Learn cert-manager by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of cert-manager

cert-manager automatically obtains, validates, and rotates public TLS certificates before expiration.

Quickstart

bash
1kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.15.3/cert-manager.yaml

cert-manager is licensed under the Apache License Version 2.0.

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cert-manager FAQs

cert-manager is listed as a Security tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

cert-manager is listed under the Apache-2.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

cert-manager is listed as an alternative to AWS Certificate Manager. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.