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Terraform rotates the production database password tonight. Walk me through how every application survives the change.

Rotation is an expand-contract migration for credentials: stage the new secret, prove every reader picked it up, revoke the old one, and treat the revocation as the test. The outage risk lives in clients and connection pools, not in Terraform.

Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

Rotation is an expand-contract migration for credentials: stage the new secret, prove every reader picked it up, revoke the old one, and treat the revocation as the test. The outage risk lives in clients and connection pools, not in Terraform.

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