AWS S3 Source

The Vector aws_s3 source collects logs from AWS S3.

Configuration

Common
Advanced

vector.toml
vector.yaml
vector.json

[sources.my_source_id]
  # General
  type = "aws_s3" # required
  region = "us-east-1" # required, required when endpoint = null

  # Sqs
  sqs.delete_message = true # optional, default
  sqs.poll_secs = 15 # optional, default, seconds
  sqs.queue_url = "https://sqs.us-east-2.amazonaws.com/123456789012/MyQueue" # required

7 items

commonrequired

optionalstring
assume_role
The ARN of an IAM role to assume at startup. See AWS Authentication for more info.
- View examples
enumoptionalstring
compression
The compression format of the S3 objects..
- Default: "text"
- Enum, must be one of: "auto" "gzip" "zstd" "none"
- View examples
optionalstring
endpoint
Custom endpoint for use with AWS-compatible services. Providing a value for this option will make region moot.
- Only relevant when: region = null
- View examples
optionaltable
multiline
Multiline parsing configuration. If not specified, multiline parsing is disabled. See Handling events from the aws_s3 source for more info.
- commonrequiredstring
  condition_pattern
  Condition regex pattern to look for. Exact behavior is configured via mode.
  - View examples
- enumcommonrequiredstring
  mode
  Mode of operation, specifies how the condition_pattern is interpreted.
  - Enum, must be one of: "continue_through" "continue_past" "halt_before" "halt_with"
  - View examples
- commonrequiredstring
  start_pattern
  Start regex pattern to look for as a beginning of the message.
  - View examples
- commonrequireduint
  timeout_ms
  The maximum time to wait for the continuation. Once this timeout is reached, the buffered message is guaranteed to be flushed, even if incomplete.
  - View examples
commonrequired*string
region
The AWS region of the target service. If endpoint is provided it will override this value since the endpoint includes the region.
- Only required when: endpoint = null
- View examples
commonoptionaltable
sqs
SQS strategy options. Required if strategy=sqs.
- commonoptionalbool
  delete_message
  Whether to delete the message once Vector processes it. It can be useful to set this to false to debug or during initial Vector setup.
  - Default: true
  - View examples
- commonoptionaluint
  poll_secs
  How often to poll the queue for new messages in seconds.
  - Default: 15 (seconds)
- commonrequiredstring
  queue_url
  The URL of the SQS queue to receieve bucket notifications from.
  - View examples
- optionaluint
  visibility_timeout_secs
  The visibility timeout to use for messages in secords. This controls how long a message is left unavailable when a Vector receives it. If a vector does not delete the message before the timeout expires, it will be made reavailable for another consumer; this can happen if, for example, the vector process crashes.
  - WARNING: Should be set higher than the length of time it takes to process an individual message to avoid that message being reprocessed.
  - Default: 300 (seconds)
enumoptionalstring
strategy
The strategy to use to consume objects from AWS S3.
- Default: "sqs"
- Enum, must be one of: "sqs"

Env Vars

9 items

common

commonoptionalstring
AWS_ACCESS_KEY_ID
The AWS access key id. Used for AWS authentication when communicating with AWS services. See AWS Authentication for more info.
- View examples
commonoptionalstring
AWS_CONFIG_FILE
Specifies the location of the file that the AWS CLI uses to store configuration profiles.
- Default: "~/.aws/config"
commonoptionalstring
AWS_CREDENTIAL_EXPIRATION
Expiration time in RFC 3339 format. If unset, credentials won't expire.
- View examples
commonoptionalstring
AWS_DEFAULT_REGION
The default AWS region.
- Only relevant when: endpoint = null
- View examples
commonoptionalstring
AWS_PROFILE
Specifies the name of the CLI profile with the credentials and options to use. This can be the name of a profile stored in a credentials or config file.
- Default: "default"
- View examples
commonoptionalstring
AWS_ROLE_SESSION_NAME
Specifies a name to associate with the role session. This value appears in CloudTrail logs for commands performed by the user of this profile.
- View examples
commonoptionalstring
AWS_SECRET_ACCESS_KEY
The AWS secret access key. Used for AWS authentication when communicating with AWS services. See AWS Authentication for more info.
- View examples
commonoptionalstring
AWS_SESSION_TOKEN
The AWS session token. Used for AWS authentication when communicating with AWS services.
- View examples
commonoptionalstring
AWS_SHARED_CREDENTIALS_FILE
Specifies the location of the file that the AWS CLI uses to store access keys.
- Default: "~/.aws/credentials"

Output

This component outputs log events with the following fields:

{
  "bucket" : "my-bucket",
  "message" : "53.126.150.246 - - [01/Oct/2020:11:25:58 -0400] \"GET /disintermediate HTTP/2.0\" 401 20308",
  "object" : "AWSLogs/111111111111/vpcflowlogs/us-east-1/2020/10/26/111111111111_vpcflowlogs_us-east-1_fl-0c5605d9f1baf680d_20201026T1950Z_b1ea4a7a.log.gz",
  "region" : "us-east-1",
  "timestamp" : "2020-10-10T17:07:36+00:00"
}

5 items

commonrequired

commonrequiredstring
bucket
The bucket of the object the line came from.
- View examples
commonrequiredstring
message
A line from the S3 object.
- View examples
commonrequiredstring
object
The object the line came from.
- View examples
commonrequiredstring
region
The AWS region bucket is in.
- View examples
commonrequiredtimestamp
timestamp
The Last-Modified time of the object. Defaults the current timestamp if this information is missing.
- View examples

Telemetry

This component provides the following metrics that can be retrieved through the internal_metrics source. See the metrics section in the monitoring page for more info.

counter
sqs_message_delete_failed_total
The total number of failures to delete SQS messages. This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.
counter
sqs_message_delete_succeeded_total
The total number of successful deletions of SQS messages. This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.
counter
sqs_message_processing_failed_total
The total number of failures to process SQS messages. This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.
counter
sqs_message_processing_succeeded_total
The total number of SQS messages successfully processed. This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.
counter
sqs_message_receive_failed_total
The total number of failures to receive SQS messages. This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.
counter
sqs_message_receive_succeeded_total
The total number of times successfully receiving SQS messages. This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.
counter
sqs_message_received_messages_total
The total number of received SQS messages. This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.
counter
processed_events_total
The total number of events processed by this component. This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- file - The file that produced the error
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.
counter
sqs_s3_event_record_ignored_total
The total number of times an S3 record in an SQS message was ignored (for an event that was not ObjectCreated). This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- ignore_type - The reason for ignoring the S3 record
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.
counter
processed_bytes_total
The total number of bytes processed by the component. This metric includes the following tags:
- component_kind - The Vector component kind.
- component_name - The Vector component ID.
- component_type - The Vector component type.
- instance - The Vector instance identified by host and port.
- job - The name of the job producing Vector metrics.

How It Works

AWS Authentication

Vector checks for AWS credentials in the following order:

Environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY.
The credential_process command in the AWS config file. (usually located at ~/.aws/config)
The AWS credentials file. (usually located at ~/.aws/credentials)
The IAM instance profile. (will only work if running on an EC2 instance with an instance profile/role)

If credentials are not found the healtcheck will fail and an error will be logged.

Obtaining an access key

In general, we recommend using instance profiles/roles whenever possible. In cases where this is not possible you can generate an AWS access key for any user within your AWS account. AWS provides a detailed guide on how to do this.

Assuming roles

Vector can assume an AWS IAM role via the assume_role option. This is an optional setting that is helpful for a variety of use cases, such as cross account access.

Context

By default, the aws_s3 source will augment events with helpful context keys as shown in the "Output" section.

Handling events from the `aws_s3` source

This source behaves very similarly to the file source in that it will output one event per line (unless the multiline configuration option is used).

You will commonly want to use transforms to parse the data. For example, to parse VPC flow logs sent to S3 you can chain the tokenizer transform:

[transforms.flow_logs]
    type = "tokenizer" # required
    inputs = ["s3"]
    field_names = ["version", "account_id", "interface_id", "srcaddr", "dstaddr", "srcport", "dstport", "protocol", "packets", "bytes", "start", "end", "action", "log_status"]

    types.srcport = "int"
    types.dstport = "int"
    types.packets = "int"
    types.bytes = "int"
    types.start = "timestamp|%s"
    types.end = "timestamp|%s"

To parse AWS load balancer logs, the regex_parser transform can be used:

[transforms.elasticloadbalancing_fields_parsed]
    type = "regex_parser"
    inputs = ["s3"]
    regex = '(?x)^
            (?P<type>[\w]+)[ ]
            (?P<timestamp>[\w:.-]+)[ ]
            (?P<elb>[^\s]+)[ ]
            (?P<client_host>[\d.:-]+)[ ]
            (?P<target_host>[\d.:-]+)[ ]
            (?P<request_processing_time>[\d.-]+)[ ]
            (?P<target_processing_time>[\d.-]+)[ ]
            (?P<response_processing_time>[\d.-]+)[ ]
            (?P<elb_status_code>[\d-]+)[ ]
            (?P<target_status_code>[\d-]+)[ ]
            (?P<received_bytes>[\d-]+)[ ]
            (?P<sent_bytes>[\d-]+)[ ]
            "(?P<request_method>[\w-]+)[ ]
            (?P<request_url>[^\s]+)[ ]
            (?P<request_protocol>[^"\s]+)"[ ]
            "(?P<user_agent>[^"]+)"[ ]
            (?P<ssl_cipher>[^\s]+)[ ]
            (?P<ssl_protocol>[^\s]+)[ ]
            (?P<target_group_arn>[\w.:/-]+)[ ]
            "(?P<trace_id>[^\s"]+)"[ ]
            "(?P<domain_name>[^\s"]+)"[ ]
            "(?P<chosen_cert_arn>[\w:./-]+)"[ ]
            (?P<matched_rule_priority>[\d-]+)[ ]
            (?P<request_creation_time>[\w.:-]+)[ ]
            "(?P<actions_executed>[\w,-]+)"[ ]
            "(?P<redirect_url>[^"]+)"[ ]
            "(?P<error_reason>[^"]+)"'
    field = "message"
    drop_failed = false

    types.received_bytes = "int"
    types.request_processing_time = "float"
    types.sent_bytes = "int"
    types.target_processing_time = "float"
    types.response_processing_time = "float"

[transforms.elasticloadbalancing_url_parsed]
    type = "regex_parser"
    inputs = ["elasticloadbalancing_fields_parsed"]
    regex = '^(?P<url_scheme>[\w]+)://(?P<url_hostname>[^\s:/?#]+)(?::(?P<request_port>[\d-]+))?-?(?:/(?P<url_path>[^\s?#]*))?(?P<request_url_query>\?[^\s#]+)?'
    field = "request_url"
    drop_failed = false

#Configuration

#assume_role

#compression

#endpoint

#multiline

#condition_pattern

#mode

#start_pattern

#timeout_ms

#region

#sqs

#delete_message

#poll_secs

#queue_url

#visibility_timeout_secs

#strategy

#Env Vars

#AWS_ACCESS_KEY_ID

#AWS_CONFIG_FILE

#AWS_CREDENTIAL_EXPIRATION

#AWS_DEFAULT_REGION

#AWS_PROFILE

#AWS_ROLE_SESSION_NAME

#AWS_SECRET_ACCESS_KEY

#AWS_SESSION_TOKEN

#AWS_SHARED_CREDENTIALS_FILE

#Output

#bucket

#message

#object

#region

#timestamp

#Telemetry

#sqs_message_delete_failed_total

#sqs_message_delete_succeeded_total

#sqs_message_processing_failed_total

#sqs_message_processing_succeeded_total

#sqs_message_receive_failed_total

#sqs_message_receive_succeeded_total

#sqs_message_received_messages_total

#processed_events_total

#sqs_s3_event_record_ignored_total

#processed_bytes_total

#How It Works

#AWS Authentication

#Obtaining an access key

#Assuming roles

#Context

#Handling events from the aws_s3 source

Configuration

assume_role

compression

endpoint

multiline

condition_pattern

mode

start_pattern

timeout_ms

region

sqs

delete_message

poll_secs

queue_url

visibility_timeout_secs

strategy

Env Vars

AWS_ACCESS_KEY_ID

AWS_CONFIG_FILE

AWS_CREDENTIAL_EXPIRATION

AWS_DEFAULT_REGION

AWS_PROFILE

AWS_ROLE_SESSION_NAME

AWS_SECRET_ACCESS_KEY

AWS_SESSION_TOKEN

AWS_SHARED_CREDENTIALS_FILE

Output

bucket

message

object

region

timestamp

Telemetry

sqs_message_delete_failed_total

sqs_message_delete_succeeded_total

sqs_message_processing_failed_total

sqs_message_processing_succeeded_total

sqs_message_receive_failed_total

sqs_message_receive_succeeded_total

sqs_message_received_messages_total

processed_events_total

sqs_s3_event_record_ignored_total