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Frequently Asked Questions

Tatsuro Shibamura edited this page May 7, 2024 · 7 revisions

Automatic renew an existing certificate

All existing ACME certificates are automatically renewed 30 days before their expiration. The default check timing is 00:00 UTC.

If you need to change the time zone, use WEBSITE_TIME_ZONE to set the time zone.

How much does Azure cost?

The cost per month of Azure resources required to use Acmebot is approximately as follows. In addition, there is a separate fee for Key Vault certificates.

  • Azure Functions = <$0.01
  • Storage Account = $0.1~$0.2
  • Application Insights = $0.01~$0.02

If you have a very large number of certificates to manage, or if you use the management screen frequently, the amount charged will vary.

Remove a Certificate

To Remove a certificate from the system delete it from the Key Vault. Key Vault Acmebot will no longer renew the certificate.

Reinstalling or Updating Acmebot

To Reinstall or Upgrade Key Vault Acmebot without removing your certificates, ensure that the Key Vault is not removed. Key Vault Acmebot will use the exisiting certificates and vault after upgrade or reinstall.

Adding SANs to an existing certificate

Acmebot uses the Key Vault Issuance Policy as is, SANs can be added or deleted by modifying the Issuance Policy from Azure Portal.