certificate

The OAuth2Client library has been deprecated by Google since 2018, and there is a replacement library google-auth.

https://github.com/certbot/certbot/blob/8b610239bfcf7aac06f6e36d09a5abba3ba87047/certbot-dns-google/certbot_dns_google/_internal/dns_google.py#L8

Is your feature request related to a problem? Please describe.

jetstack/cert-manager#3607 implies that certificates are not re-issued if key usages change. This behaviour should be documented and tested with an appropriate conformance test.

https://cert-manager.io/docs/usage/certificate/ should be updated as well

Additional context
https://github.com/jets

This will allow users to set up API mgmt for provisioners, and unblock users in environments where the ca.json is not easily accessible.

The --enable-admin flag would create the first provisioner and admin (this code already exists, just behind a boolean).
The --acme flag would create an ACME provisioner.

Related: smallstep/certificates#737

Beyonce said it best. If you like it then you shoulda put a test on it. Scenarios I like:

• Cert is created with right DN
• Cert is stored to X509Store after creation
• Cert request is not resubmitted
• Handles failures gracefully
• HTTP challenge/response works as expected
• Certificate renewal when cert is about to expiration