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Tool for fast deletion and emptying of S3 buckets (versioning supported)

#aws #s3

I have released an OSS tool that solves the following problems.

  • The button to empty an S3 bucket is present in the S3 console but not in the CLI or SDK.
    • If versioning is off, it can be done with aws s3 rm --recursive in CLI, but it's slow.
    • If versioning is on, it can't be done in the first place.
  • When deleting an S3 bucket, the bucket must be empty to be deleted.
    • It can be done with aws s3 rb --force in CLI, but it's slow.
  • You want to empty it, but can't delete + re-create the bucket with CDK's autoDeleteObjects, etc. because it is dependent on other resources.
  • You have to wait a day to try to delete it with S3's lifecycle function.

You can now empty or delete entire buckets very easily and fast.

Moreover, you can do multiple buckets at once, and also search buckets interactively!

What is

The CLI tool "cls3" is to CLear Amazon S3 Buckets(AWS).

It empties (so deletes all objects and versions/delete-markers in) S3 Buckets or deletes the buckets themselves.

This tool allows you to search for bucket names and delete or empty multiple buckets.

Source Code

Implemented in Go language. Please see GitHub.

Features

Bucket deletion option

Initially, the tool was intended to "empty the bucket", but since I was going to go through the trouble, I also added an option (-f|--force) to "delete the bucket as well".

Search for bucket names and delete multiple buckets

As described below, you can search for bucket names and delete or empty multiple buckets at once.

Cross-region

In deleting multiple buckets, you can list and delete them all at once, even if they are in multiple regions.

(In the Directory Buckets Mode for S3 Express One Zone (-d option), operation across regions is not possible, but only in one region. You can specify the region with the -r option.)

Deletion of buckets with versioning enabled

Even if versioning is turned on, you can empty it just as if it were turned off. Therefore, you can use it without being aware of the versioning settings.

Deletion of old version objects only

The -o | --oldVersionsOnly option allows you to delete only old versions and all delete-markers without new versions and a bucket itself.

So you can retain the latest version objects only.

This option cannot be specified with the -f | --force option.

Deletion of Directory Buckets for S3 Express One Zone

The -d | --directoryBucketsMode option allows you to delete the Directory Buckets for S3 Express One Zone.

In this mode, operation across regions is not possible, but only in one region. You can specify the region with the -r option.

Number of objects that can be deleted

The delete-objects API provided by the CLI and SDK has a limit of "the number of objects that can be deleted in one command is limited to 1000", but This tool has no limit on the number.

Retry on 503 error

When there are tens of thousands of objects, a SlowDown error (503 error) may occur on the S3 api side in rare cases when deleting them all at once using the CLI or SDK.

When this occurs, cls3 responds by adding a mechanism that waits a few seconds and retries automatically several times.

Install

Homebrew 

brew install go-to-k/tap/cls3
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Linux, Darwin (macOS) and Windows 

curl -fsSL https://raw.githubusercontent.com/go-to-k/cls3/main/install.sh | sh
cls3 -h

# To install a specific version of cls3
# e.g. version 0.13.2
curl -fsSL https://raw.githubusercontent.com/go-to-k/cls3/main/install.sh | sh -s "v0.13.2"
cls3 -h
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aqua 

aqua g -i go-to-k/cls3
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Binaries

Source build (development version)

The Go environment is required.

git clone https://github.com/go-to-k/cls3.git
cd cls3
make install
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How to use 

cls3 -b <bucketName> [-b <bucketName>] [-p <profile>] [-r <region>] [-f|--force] [-i|--interactive] [-o|--oldVersionsOnly] [-q|--quietMode] [-d|--directoryBucketsMode]
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Options

  • -b, --bucketName: optional
    • Bucket name
    • Must be specified in not interactive mode
    • Otherwise (so in the interactive mode), you can not specify this!
    • Multiple specifications are possible.
    • cls3 -b test1 -b test2
  • -p, --profile: optional
    • AWS profile name
  • -r, --region: optional(default: ap-northeast-1)
    • AWS Region
    • If this option is not specified and your AWS profile is tied to a region, the region is used instead of the default region.
    • It is not necessary to be aware of this as it can be used across regions.
    • But in the Directory Buckets Mode for S3 Express One Zone (with -d option), you should specify the region. The mode is not available across regions.
  • -f, --force: optional
    • ForceMode (Delete the bucket together)
  • -i, --interactive: optional
    • Interactive Mode for buckets selection
  • -o, --oldVersionsOnly: optional
    • Delete old version objects only (including all delete-markers)
    • Do not specify the -f option if you specify this option.
  • -q, --quietMode: optional
    • Hide live display of number of deletions
    • It would be good to use in CI
  • -d, --directoryBucketsMode: optional
    • Directory Buckets Mode for S3 Express One Zone
    • Operation across regions is not possible, but only in one region.
    • You can specify the region with the -r option.

Interactive Mode

BucketName Selection

In the interactive mode(-i option), you can search bucket names and select buckets.

It is designed to be searchable and deletable across regions, so it can be used without being region-aware.

It can be empty.

❯ cls3 -i
Filter a keyword of bucket names: test-goto
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Then you select bucket names in the UI.

? Select buckets.
  [Use arrows to move, space to select, <right> to all, <left> to none, type to filter]
> [x]  test-goto-bucket-1
  [ ]  test-goto-bucket-2
  [x]  test-goto-bucket-3
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GitHub Actions

You can use cls3 in GitHub Actions Workflow.

The quiet allows you to hive live display of number of deletions (default: true in GitHub Actions ONLY).

Basically, you do not need to specify a region parameter, since you can delete buckets across regions. However,
in Directory Buckets mode (directory-buckets-mode) for S3 Express One Zone, the region must be specified. This mode cannot
be used across regions.

To delete multiple buckets, specify bucket names separated by commas.

jobs:
  cls3:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v3
        with:
          role-to-assume: arn:aws:iam::123456789100:role/my-github-actions-role
          # Or specify access keys.
          # aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          # aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: us-east-1
      - name: Delete bucket
        uses: go-to-k/cls3@main # Or specify the version instead of main
        with:
          bucket-name: YourBucket
          # bucket-name: YourBucket1, YourBucket2, YourBucket3 # To delete multiple buckets
          force: true # Whether to delete the bucket itself, not just the object (default: false)
          quiet: false # Hide live display of number of deletions (default: true in GitHub Actions ONLY.)
          old-versions-only: false # Delete old version objects only (including all delete-markers) (default: false)
          directory-buckets-mode: false # Directory Buckets Mode for S3 Express One Zone (default: false)
          region: us-east-1 # Specify the region in the Directory Buckets Mode for S3 Express One Zone
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You can also run raw commands after installing the cls3 binary.

jobs:
  cls3:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v3
        with:
          role-to-assume: arn:aws:iam::123456789100:role/my-github-actions-role
          # Or specify access keys.
          # aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
          # aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          aws-region: us-east-1
      - name: Install cls3
        uses: go-to-k/cls3@main # Or specify the version instead of main
      - name: Run cls3
        run: |
          echo "cls3"
          cls3 -v
          cls3 -b YourBucket1 -b YourBucket2
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Finally

I created a CLI tool for fast deletion and emptying of S3 buckets.

You can use it if you like!

Top comments (5)

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mmuller88 profile image
Martin Muller 🇩🇪🇧🇷🇵🇹 •

Nice. Thank you so much :)!

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k_goto profile image
k.goto •

@mmuller88
Thank you too! Please use it!

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