Class: Jets::Cfn::Teardown::Bucket

Inherits:
Object
  • Object
show all
Includes:
AwsServices, Util::Logging
Defined in:
lib/jets/cfn/teardown/bucket.rb

Instance Method Summary collapse

Methods included from Util::Logging

#log

Methods included from AwsServices

#apigateway, #aws_options, #cfn, #codebuild, #dynamodb, #lambda_client, #logs, #s3, #s3_resource, #sns, #sqs, #ssm, #sts, #wafv2

Methods included from AwsServices::StackStatus

#output_value, #stack_exists?

Methods included from AwsServices::GlobalMemoist

included, #reset_cache!

Instance Method Details

#are_you_sure? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/jets/cfn/teardown/bucket.rb', line 65

def are_you_sure?
  if @options[:yes]
    sure = "y"
  else
    log.debug "Are you sure you want to delete the #{Jets.project.namespace.color(:green)} project? (y/N)"
    sure = $stdin.gets
  end

  unless /^y/.match?(sure)
    log.debug "Phew! Jets #{Jets.project.namespace.color(:green)} project was not deleted."
    exit 0
  end
end

#bucket_exists? ⇒ Boolean

Thanks: docs.aws.amazon.com/sdk-for-ruby/v3/developer-guide/s3-example-does-bucket-exist.html

Returns:

  • (Boolean) 


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# File 'lib/jets/cfn/teardown/bucket.rb', line 57

def bucket_exists?
  return false unless s3_bucket
  s3.head_bucket(bucket: s3_bucket, use_accelerate_endpoint: false)
  true
rescue Aws::S3::Errors::NotFound
  false
end

#delete_objects(call_count = 0) ⇒ Object 



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# File 'lib/jets/cfn/teardown/bucket.rb', line 12

def delete_objects(call_count = 0)
  return unless bucket_exists?

  # Must first remove all objects from s3 bucket in order to delete stack
  log.info "Emptying s3 bucket #{s3_bucket}" if s3_bucket && call_count == 0

  resp = s3.list_objects(bucket: s3_bucket)
  if resp.contents.size > 0
    # IE: objects = [{key: "objectkey1"}, {key: "objectkey2"}]
    objects = resp.contents.map { |item| {key: item.key} }
    s3.delete_objects(
      bucket: s3_bucket,
      delete: {
        objects: objects,
        quiet: false
      }
    )
    delete_objects(call_count + 1) # recursive call to keep deleting objects until bucket is empty
  end
end

#empty! ⇒ Object 



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# File 'lib/jets/cfn/teardown/bucket.rb', line 7

def empty!
  delete_objects
  wait_for_emptiness
end

#wait_for_emptiness ⇒ Object

Think there can be a race condition since delete_objects is async So we wait for the bucket to be empty Before we continue with the delete stack



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# File 'lib/jets/cfn/teardown/bucket.rb', line 36

def wait_for_emptiness
  return unless bucket_exists?

  @empty_bucket_checks ||= 0
  max_checks = 5
  while @empty_bucket_checks < max_checks
    is_empty = s3.list_objects(bucket: s3_bucket).contents.empty?
    if is_empty
      log.debug "Bucket '#{s3_bucket}' is empty."
      return
    else
      log.debug "Bucket '#{s3_bucket}' is not empty. Waiting..."
      sleep 2
      @empty_bucket_checks += 1
    end
  end

  log.debug "Timeout: Bucket '#{s3_bucket}' is not empty after waiting."
end