S3 input plugin v3.4.1

  • Plugin version: v3.4.1
  • Released on: 2018-09-14
  • Changelog

For other versions, see the overview list.

To learn more about Logstash, see the Logstash Reference.

Getting Help

For questions about the plugin, open a topic in the Discuss forums. For bugs or feature requests, open an issue in Github. For the list of Elastic supported plugins, please consult the Elastic Support Matrix.

Description

Stream events from files from a S3 bucket.

Each line from each file generates an event. Files ending in .gz are handled as gzip’ed files.

Files that are archived to AWS Glacier will be skipped.

S3 Input Configuration Options

This plugin supports the following configuration options plus the Common Options described later.

Also see Common Options for a list of options supported by all input plugins.

 

access_key_id

  • Value type is string
  • There is no default value for this setting.

This plugin uses the AWS SDK and supports several ways to get credentials, which will be tried in this order:

  1. Static configuration, using access_key_id and secret_access_key params in logstash plugin config
  2. External credentials file specified by aws_credentials_file
  3. Environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY
  4. Environment variables AMAZON_ACCESS_KEY_ID and AMAZON_SECRET_ACCESS_KEY
  5. IAM Instance Profile (available when running inside EC2)

aws_credentials_file

  • Value type is string
  • There is no default value for this setting.

Path to YAML file containing a hash of AWS credentials. This file will only be loaded if access_key_id and secret_access_key aren’t set. The contents of the file should look like this:

    :access_key_id: "12345"
    :secret_access_key: "54321"

backup_add_prefix

  • Value type is string
  • Default value is nil

Append a prefix to the key (full path including file name in s3) after processing. If backing up to another (or the same) bucket, this effectively lets you choose a new folder to place the files in

backup_to_bucket

  • Value type is string
  • Default value is nil

Name of a S3 bucket to backup processed files to.

backup_to_dir

  • Value type is string
  • Default value is nil

Path of a local directory to backup processed files to.

bucket

  • This is a required setting.
  • Value type is string
  • There is no default value for this setting.

The name of the S3 bucket.

delete

  • Value type is boolean
  • Default value is false

Whether to delete processed files from the original bucket.

endpoint

  • Value type is string
  • There is no default value for this setting.

The endpoint to connect to. By default it is constructed using the value of region. This is useful when connecting to S3 compatible services, but beware that these aren’t guaranteed to work correctly with the AWS SDK.

exclude_pattern

  • Value type is string
  • Default value is nil

Ruby style regexp of keys to exclude from the bucket

additional_settings

  • Value type is hash
  • Default value is {}

Key-value pairs of settings and corresponding values used to parametrize the connection to s3. See full list in the AWS SDK documentation. Example:

input {
  s3 {
    "access_key_id" => "1234"
    "secret_access_key" => "secret"
    "bucket" => "logstash-test"
    "additional_settings" => {
      "force_path_style" => true
      "follow_redirects" => false
    }
  }
}

include_object_properties

  • Value type is boolean
  • Default value is false

Whether or not to include the S3 object’s properties (last_modified, content_type, metadata) into each Event at [@metadata][s3]. Regardless of this setting, [@metdata][s3][key] will always be present.

interval

  • Value type is number
  • Default value is 60

Interval to wait between to check the file list again after a run is finished. Value is in seconds.

prefix

  • Value type is string
  • Default value is nil

If specified, the prefix of filenames in the bucket must match (not a regexp)

proxy_uri

  • Value type is string
  • There is no default value for this setting.

URI to proxy server if required

region

  • Value type is string
  • Default value is "us-east-1"

The AWS Region

role_arn

  • Value type is string
  • There is no default value for this setting.

The AWS IAM Role to assume, if any. This is used to generate temporary credentials, typically for cross-account access. See the AssumeRole API documentation for more information.

role_session_name

  • Value type is string
  • Default value is "logstash"

Session name to use when assuming an IAM role.

secret_access_key

  • Value type is string
  • There is no default value for this setting.

The AWS Secret Access Key

session_token

  • Value type is string
  • There is no default value for this setting.

The AWS Session token for temporary credential

sincedb_path

  • Value type is string
  • Default value is nil

Where to write the since database (keeps track of the date the last handled file was added to S3). The default will write sincedb files to in the directory {path.data}/plugins/inputs/s3/

If specified, this setting must be a filename path and not just a directory.

temporary_directory

  • Value type is string
  • Default value is "/tmp/logstash"

Set the directory where logstash will store the tmp files before processing them.

watch_for_new_files

  • Value type is boolean
  • Default value is true

Whether or not to watch for new files. Disabling this option causes the input to close itself after processing the files from a single listing.

Common Options

The following configuration options are supported by all input plugins:

Details

 

add_field

  • Value type is hash
  • Default value is {}

Add a field to an event

codec

  • Value type is codec
  • Default value is "plain"

The codec used for input data. Input codecs are a convenient method for decoding your data before it enters the input, without needing a separate filter in your Logstash pipeline.

enable_metric

  • Value type is boolean
  • Default value is true

Disable or enable metric logging for this specific plugin instance by default we record all the metrics we can, but you can disable metrics collection for a specific plugin.

id

  • Value type is string
  • There is no default value for this setting.

Add a unique ID to the plugin configuration. If no ID is specified, Logstash will generate one. It is strongly recommended to set this ID in your configuration. This is particularly useful when you have two or more plugins of the same type, for example, if you have 2 s3 inputs. Adding a named ID in this case will help in monitoring Logstash when using the monitoring APIs.

input {
  s3 {
    id => "my_plugin_id"
  }
}

tags

  • Value type is array
  • There is no default value for this setting.

Add any number of arbitrary tags to your event.

This can help with processing later.

type

  • Value type is string
  • There is no default value for this setting.

Add a type field to all events handled by this input.

Types are used mainly for filter activation.

The type is stored as part of the event itself, so you can also use the type to search for it in Kibana.

If you try to set a type on an event that already has one (for example when you send an event from a shipper to an indexer) then a new input will not override the existing type. A type set at the shipper stays with that event for its life even when sent to another Logstash server.