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What is cert-manager?
Kubernetes-native certificate management
Runs as a controller in your cluster
Automatically requests, renews, and manages certificates
Stores certs as K8s Secrets
Works with any ingress controller
cert-manager
CNCF Graduated Project
10M+
Downloads per month
CNCF
Graduated Project
20+
Supported Issuers
Why cert-manager? Before cert-manager, teams manually created certificates, copied them to secrets, and set calendar reminders for renewal. cert-manager automates this entire lifecycle, eliminating certificate-related outages.
