Is there a way to add cache control in AWS S3

Question

I have moved about more 10000 files to AWS S3 using s3cmd command. Is there a way to add cache control in S3 for all the images.

if my files are reside ( s3://bucket-name/images/ ). How do i proceed?

Answer 1

use of  current upstream master branch will help for sure. use this github repository: https://github.com/s3tools/s3cmd. Next refer this command for the solutions

./s3cmd --recursive modify --add-header="Cache-Control:max-age=86400" s3://yourbucket/

You can learn more from the AWS Training and Certification.

Answer 2

To adjust metadata such as cache-control on an object in S3 without having to re-upload it and without having to use any third party tools, you can do the following with the AWS CLI. It copies the object to itself while overriding the metadata with your chosen settings:

aws s3api copy-object --copy-source <bucket-name>/<file> --bucket <bucket-name> --key <file> --metadata-directive REPLACE --cache-control "max-age=3600"

Process this command in a find to do it on an existing set of files that already exists in the bucket as you mention:

find . -type f -exec aws s3api copy-object --copy-source <bucket-name>/{} --bucket <bucket-name> --key {} --metadata-directive REPLACE --cache-control "max-age=3600"

replace <bucket-name> with the name of your bucket

WARNING: this will overwrite all your existing metadata on the files such as acl, just add additional flags to the command e.g. --acl public-read to set what you need.