I want to delete an s3 bucket in aws with millions of objects. Is there a quick way of doing it through AWS CLI command or a script to delete them all without going in the console and manually doing it?
The easiest way I have found is to first edit the bucket's lifecycle policy to expire all objects. Then wait a day or two for the lifecycle policy to have removed all the objects from the bucket.
You can use the following to delete the bucket with the object. But i think that can take a lot of time if there are a lot of objects. I think there isn't a really fast way to do this.
aws s3 rb --force s3://your_bucket_name
But perhaps everyone does a better way.
Related
I am creating cloudFormation stack for s3 bucket (with the help of yaml template file). Is there a way by which we can automatically delete the created buckets? Can we configure the yaml templates such that the s3 bucket gets deleted after some time of its creation? If not what is the best way to programmaticaly delete the s3 buckets?
Tried to add
DeletionPolicy: Delete
But it is for retention of deleted files.
The best way to achieve this is to create a cloudwatch event at a specific time that would trigger a lambda. This lambda could delete the file in the bucket and then delete the bucket.
You can build all that using cloudformation template.
As far as I know
DeletePolicy
is used to determine what will happen when a bucket gets deleted.
You should look into lifecycle policy instead if you want some sort of time based automation behind it.
Here are some examples:
AWS DOCS
I have the following currently created in AWS us-east-1 region and per the request of our AWS architect I need to move it all to the us-east-2, completely, and continue developing in us-east-2 only. What are the easiest and least work and coding options (as this is a one-time deal) to move?
S3 bucket with a ton of folders and files.
Lambda function.
AWS Glue database with a ton of crawlers.
AWS Athena with a ton of tables.
Thank you so much for taking a look at my little challenge :)
There is no easy answer for your situation. There are no simple ways to migrate resources between regions.
Amazon S3 bucket
You can certainly create another bucket and then copy the content across, either using the AWS Command-Line Interface (CLI) aws s3 sync command or, for huge number of files, use S3DistCp running under Amazon EMR.
If there are previous Versions of objects in the bucket, it's not easy to replicate them. Hopefully you have Versioning turned off.
Also, it isn't easy to get the same bucket name in the other region. Hopefully you will be allowed to use a different bucket name. Otherwise, you'd need to move the data elsewhere, delete the bucket, wait a day, create the same-named bucket in another region, then copy the data across.
AWS Lambda function
If it's just a small number of functions, you could simply recreate them in the other region. If the code is stored in an Amazon S3 bucket, you'll need to move the code to a bucket in the new region.
AWS Glue
Not sure about this one. If you're moving the data files, you'll need to recreate the database anyway. You'll probably need to create new jobs in the new region (but I'm not that familiar with Glue).
Amazon Athena
If your data is moving, you'll need to recreate the tables anyway. You can use the Athena interface to show the DDL commands required to recreate a table. Then, run those commands in the new region, pointing to the new S3 bucket.
AWS Support
If this is an important system for your company, it would be prudent to subscribe to AWS Support. They can provide advice and guidance for these types of situations, and might even have some tools that can assist with a migration. The cost of support would be minor compared to the savings in your time and effort.
Is it possible for you to create CloudFormation stacks (from existing resources) using the console, then copying the contents of those stacks and run them in the other region (replacing values where they need to be).
See this link: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/resource-import-new-stack.html
Fairly new to cloudformation templating but all I am looking to create a template where I create a S3 bucket and import contents into that bucket from another S3 bucket from a different account (that is also mine). I realize CloudFormation does not natively supports importing contents into S3 bucket, and I have to utilize custom resource. I could not find any reference/resources that does such tasks. Hoping someone could point out some examples or maybe even some guidance as to how to tackle this.
Thank you very much!
Can't provide full code, but can provide some guidance. There are few ways of doing this, but I will list one:
Create a bucket policy for the bucket in the second account. The policy should allow the first account (one with cfn) to read it. There are many resources on doing this. One from AWS is here.
Create a standalone lambda function in the first account with execution role allowing it to the read bucket from the second account. This is not a custom resource yet. The purpose of this lambda function is to test the cross-account permissions, and your code which reads objects from it. This is like a test function to sort out all the permissions and polish object copying code from one bucket to other.
Once your lambda function works as intended, you modify it (or create new one) as a custom resource in CFN. As a custom resource, it will need to take your newly created bucket in cfn as one of its arguments. For easier creation of custom resources this aws helper can be used.
Note, that the lambda execution timeout is 15 minutes. Depending on how many objects you have, it may be not enough.
Hope this helps.
If Custom Resources scare you, then a simpler way is to launch an Amazon EC2 instance with a startup script specified via User Data.
The CloudFormation template can 'insert' the name of the new bucket into the script by referencing the bucket resource that was created. The script could then run an AWS CLI command to copy the files across.
Plus, it's not expensive. A t3.micro instance is about 1c/hour and it is charged per second, so it's pretty darn close to free.
I deleted my Amazon S3 resources, but I still see charges for S3. I have only one
bucket and it is empty, for some reason I am not able to delete it.
It does not have any logging or something, all properties are displayed in below picture.
A likely cause of an "empty" bucket that isn't actually empty is abandoned multipart uploads that were never completed or aborted.
Use aws s3api list-multipart-uploads to verify this.
If they are there, you can aws s3api abort-multipart-upload to delete each one, after which you should be able to delete them.
Or, create a lifecycle policy to purge them, see https://aws.amazon.com/blogs/apn/automating-lifecycle-rules-for-multipart-uploads-in-amazon-s3/.
Is there ways to get deleted history of AWS s3 bucket?
Problem Statement :
Some of s3 folders got deleted . Is there way to figure out when it got deleted
There are at least two ways to accomplish what you want to do, but both are disabled by default.
The first one is to enable server access logging on your bucket(s), and the second one is to use AWS CloudTrail.
You might be out of luck if this already happened and you had no auditing set up, though.