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mapbox / landsat-tiler

A serverless Landsat tiles server using AWS Lambda
BSD 3-Clause "New" or "Revised" License
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Issue extending to cover Sentinel 2 imagery #2

Closed rustyb closed 7 years ago

rustyb commented 7 years ago

I've been attempting to add sentinel 2 routes to the landsat tiler but having little success following deployment to lambda. It works as desired when testing on docker locally. See https://github.com/rustyb/landsat-tiler/commit/803a9735712580f95e5a049c25484dac5b8544a7

When deployed to lambda I get the following error when trying to get metadata for an S2 scene:

{
"ErrorMessage": "'/vsis3/sentinel-s2-l1c/tiles/35/J/PH/2017/8/5/0/preview.jp2' does not exist in the file system, and is not recognized as a supported dataset name."
}

I'm assuming its a permissions issue on AWS but not sure.

@vincentsarago maybe you might be able to point me in the right direction?

vincentsarago commented 7 years ago

Hey @rustyb you are really close. What's happening is GDAL not able to read JP2 because of an environment variable: https://github.com/rustyb/landsat-tiler/blob/803a9735712580f95e5a049c25484dac5b8544a7/serverless.yml#L31

You need to change it to `CPL_VSIL_CURL_ALLOWED_EXTENSIONS: ".jp2" to allow gdal to get Jp2 files.

I really appreciate that you already jump on that and trie to make your own sentinel tiler :heart:

That's said, when working on rio-tiler I realized that sentinel-tiler was possible but I wasn't happy with the performances (when using openjpeg 2.2.0). Later last week OpenJPEG 2.3 got realized and bring a nice performance improvement (but it still takes couple seconds per tiles).

I created a sentinel-tiler repo but kept private because I didn't had the time to add a live demo (I was planning to do it later this week).

Again I'm glad you are trying to create your own, you can fork sentinel-tiler, and it's really similar to landsat-tiler.

If you endup creating a live demo I'll be more than happy to add a link on the readme page.

Kind regards,

Vincent

rustyb commented 7 years ago

Ah amazing I knew it must be something very simple. I now see what you mean, it's certainly not super fast at rendering. Will have a crack at the demo tomorrow.