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Provisioning TLS certificates

We use one wildcard TLS certificate for each cloud.gov environment, plus an additional certificate for customer applications in production:

  • Development: *.dev.us-gov-west-1.aws-us-gov.cloud.gov
  • Staging: *.fr-stage.cloud.gov
  • Production system: *.fr.cloud.gov
  • Production customer: *.app.cloud.gov

We provision certificates using Let’s Encrypt. Our terraform pipeline checks certificate expiration dates daily and renews certificates that are about to expire. Our load balancers are configured to use the latest certificate; updating load balancers requires re-applying terraform stacks.