Create Thumbnail Doesn't Work (Demo)

[joncameron]

Description

On Terraform-based Avalon instances like the demo.avalonmediasystem.org, thumbnail images are unable to be set. Using the modal to select a new poster/thumbnail seems to hit a 500 error on the POST to /still for a masterfile.

To reproduce

• Go to https://demo.avalonmediasystem.org/media_objects/wh246s463 or another item on Demo
• Attempt to update the poster image
• Poster image does not update

Done Looks Like

• Poster/thumbnail image update is successful when selecting the "Update Poster Image" button from the "Create Thumbnail" modal

[elynema]

nginx caching on thumbnails and poster images, but nothing to expire cache when these are updated in the application. This is impacting terraform sites. After 30 minutes, when the cache expires, the new thumbnails should show up.

[cjcolvar]

The caching layer is setup in avalon-docker on the aws_min branch which is only used by avalon-terraform.

Here's the config:
https://github.com/avalonmediasystem/avalon-docker/blob/aws_min/cache.conf
and the nginx docs for these directives:
nginx.org/en/docs/http/ngx_http_proxy_module.html

We should figure out how to expire the cache for thumbnail/posters or maybe consider disabling the cache until we can figure out a better solution.

[cjcolvar]

On the demo server I commented out the caching of poster and thumbnail images and restarted the cache container. Updating a thumbnail/poster took effect immediately instead of having to wait 30 minutes. If this feels like a long term solution then we could make the change in avalon-docker. If not, I can explore different cache expiration approaches.

[joncameron]

@cjcolvar What do you think would be best? I'm fine with commenting out lines for the Docker install if that resolves the issue in that enviroment. I can create a new issue either way.

[cjcolvar]

I'll make this change in avalon-docker and we can revisit caching another time. This change will be on the aws_min branch so it only affects the Terraform environment.

Completed here: avalonmediasystem/avalon-docker@5b34058