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#cluster-boundary

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Editorial question45.6K views1,938 votes0 answers4,866 following

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Cert-Manager Issuer Boundary: Local Self-Signed to External CA in Rancher

The cert-manager clusterissuer resource in Rancher defaults to a local self-signed certificate authority for development clusters, while production environments often require an externally provisioned CA to satisfy TLS handshake requirements across trusted domains. This configuration boundary directly impacts workload certificate validity and inter-cluster t

rancher cluster-boundaryLax Moss0 rep · 10 Aug 2025, 03:42 UTC