The need is to read GCS bucket(bucket 1) mapped to US region and then write into Europe region GCS bucket(bucket 2). I would like to find the best solution to achieve the requirement. I thought to implement bucket-1 as multiregional but I could see below options, not sure how it works If I choose anyone.
can anyone please suggest the solution. Note: The requirement is bucket-1 should always be with US region.
You can't have multi/dual region across continent. So you must have 2 different buckets, not only one.
Then you have to implement solution to replicate data. There is storage transfer that offer a convenient way to achieve that, but you don't have a lot of control on the trigger.
You can also implement yourself a copy based on GCS event and a function that simply call a copy API. Not really difficult to implement, but not out-of-the-box
This is how I made it work. I have created a bucket-1 in US multi regional and bucket-2 in europe-west3 regional. That's all, my cloud function able to read from bucket-1 and written into bucket-2 successfully.