How to increase Google cloud CDN caching time

Issue

• How to increase the Google Cloud CDN cache timing max-age= 3600(1 hr) to 1 day.

Environment

• Liferay PaaS

Resolution

• The default CDN caching involves the caching timing limited to 1hr(CLIENT_TTL and DEFAULT_TTL)
• The Google Cloud platform uses CLIENT_TTL to control CDN behavior. As the load balancer is managed by Google Cloud, the CDN service cannot be customized.
• Therefore, there is currently no OOTB feature available that modifies the duration of the CDN Cache-Control configuration.
• Although internal tickets have been opened to enhance this CDN configuration capability.

Additional Information

• How long does the content remain in the CDN cache?