cloudfront Use Origin Cache Headers in object caching

[Spyros Lambrinidis]

Hi,

I want in one of my cloudfront cache behavious to use my origin cache headers as sent from my server.

However in terraform, the min_ttl, max_ttl and default_ttl is required.

Is there a way to use origin cache headers?

thank you

[Teemu Matilainen]

Hi,

- If the origin sends cache headers, CloudFront uses them, but squeezes the caching time to fit between `min_ttl` and `max_ttl`. So you can set them to e.g. 0 and 31536000. The `default_ttl` setting is not used.

- If the origin doesn't send cache header, CloudFront uses `default_ttl`. The `min_ttl` and `max_ttl` settings are not used.

- Default caching time for errors is 5 minutes, but you can override it by `custom_error_response` blocks

- CloudFront never touches/adds/removes the cache headers that are passed to the client, so none of the above settings affect the clients.

None of this is specific to Terraform.

Cheers,

  - Teemu

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[Florin Andrei]

This explanation should be added to the documentation https://www.terraform.io/docs/providers/aws/r/cloudfront_distribution.html

It is otherwise very puzzling why Terraform seems to be missing the Object Caching option (it doesn't, really, but anyone except those who know already all these behavior details will be induced to think that the option is missing).

On Monday, February 6, 2017 at 6:45:52 AM UTC-8, Teemu Matilainen wrote:

Hi,

- If the origin sends cache headers, CloudFront uses them, but squeezes the caching time to fit between `min_ttl` and `max_ttl`. So you can set them to e.g. 0 and 31536000. The `default_ttl` setting is not used.

- If the origin doesn't send cache header, CloudFront uses `default_ttl`. The `min_ttl` and `max_ttl` settings are not used.

- Default caching time for errors is 5 minutes, but you can override it by `custom_error_response` blocks

- CloudFront never touches/adds/removes the cache headers that are passed to the client, so none of the above settings affect the clients.

None of this is specific to Terraform.

Cheers,

  - Teemu

On Mon, Feb 6, 2017 at 2:56 PM, Spyros Lambrinidis <spy...@peopleperhour.com> wrote:

Hi,

I want in one of my cloudfront cache behavious to use my origin cache headers as sent from my server.

However in terraform, the min_ttl, max_ttl and default_ttl is required.

Is there a way to use origin cache headers?

thank you

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GitHub Issues: https://github.com/hashicorp/terraform/issues
IRC: #terraform-tool on Freenode
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