Portal | Level: L2: Operations | Topics: Certificates | Domain: DevOps & Tooling

Certificates

Level: L2 | Domain: devops

TLS certificates are the foundation of encrypted communication on the internet and within service meshes. Managing certificates involves issuance (Let's Encrypt, ACM, internal CAs), renewal automation (cert-manager), monitoring expiry, and handling emergency renewals when automation fails.

Certificate mismanagement is a common cause of production outages. Understanding the certificate lifecycle -- from CSR generation through renewal and revocation -- is essential operational knowledge.

See Also

• TLS & Certificates Ops
• cert-manager
• Security Basics
• Decision Tree: Certificate Is Expiring

Pages that link here

• Decision Tree: Certificate Is Expiring — What Do I Do?
• Security Basics (Ops-Focused)
• TLS & Certificates Ops
• cert-manager