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Cloud Run => Custom Domains => At most 15 SSL certificates

I have been using the "Custom domains" integration in Cloud Run to set up the load balancer with custom domains. This has worked well, up until I tried to deploy my 16th app to Cloud Run. I then received an error stating "At most 15 SSL certificates" (see attached). 

Why at most 15 SSL certificates? 

Why did I not receive any warnings when I approached the limit (e.g., at 13 SSL certificates, receive a warning when adding the 14th)? 

It appears that I cannot just use a managed certificate for a wildcard domain:

 

ERROR: (gcloud.compute.ssl-certificates.create) Could not fetch resource:
 - Invalid value for field 'resource.managed.domains[0]': '*.my_custom_domain.org'. Wildcard domains not supported.

 

...so do I now have to create managed ssl certificates for each individual app's custom domain? 

Screenshot 2024-08-26 at 7.25.26 PM.pngScreenshot 2024-08-26 at 7.25.49 PM.png

 

 

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