Open raster file with GDAL on google cloud storage bucket returns None

Question

I have a raster file on a google cloud storage bucket and I want to open it with GDAL. I am trying this:

from osgeo import gdal
from google.cloud import storage
from google.cloud import client

#ensure file exists
name = '1.tif'
storage_client = storage.Client()
bucket_name = 'my-bucket'
bucket = storage_client.bucket(bucket_name)
stats = storage.Blob(bucket=bucket, name=name).exists(storage_client)
print(stats)

This returns True and the full path is gs://my-bucket/1.tif

But when I do this

gdal.Open('gs://my-bucket/1.tif')

it returns None

I can open the file correctly just fine when I read it from my google drive, so this seems to be an issue only on google cloud storage

Answer 1

GCS buckets are implemented as a GDAL virtual filesystem, so you'll want to update the filepath to:

gdal.Open('/vsigs/my-bucket/1.tif')

But as @Kartograaf mentions, you may also need to set some additional configuration parameters if your bucket requires authentication.

Alternatively, rasterio appears to handle the gs:// notation.