By default Amazon’s S3 doesn’t set any Cache Control headers. Even worse, the only way to set them via their S3 management console is file-by-file.
Not exactly scalable.
Until they give us a quick and easy way to do this, here’s a simple Python script using Boto (thanks to Blackpawn).
Note that the script iterates over every object in your buckets, so if you have a ton of objects, it may not be the solution for you.
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| from boto.s3.connection import S3Connection | |
| connection = S3Connection('aws access key', 'aws secret key') | |
| buckets = connection.get_all_buckets() | |
| for bucket in buckets: | |
| for key in bucket.list(): | |
| print('%s' % key) | |
| if key.name.endswith('.jpg'): | |
| contentType = 'image/jpeg' | |
| elif key.name.endswith('.png'): | |
| contentType = 'image/png' | |
| else: | |
| continue | |
| key.metadata.update({ | |
| 'Content-Type': contentType, | |
| 'Cache-Control': 'max-age=864000' | |
| }) | |
| key.copy( | |
| key.bucket.name, | |
| key.name, | |
| key.metadata, | |
| preserve_acl=True | |
| ) |
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