AWS S3

Collect logs from AWS S3

status: stable role: aggregator delivery: at-least-once acknowledgements: yes egress: stream state: stateless
output: logs
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Requirements

The AWS S3 source requires a SQS queue configured to receive S3 bucket notifications for the desired S3 buckets.

Configuration

Example configurations

{
  "sources": {
    "my_source_id": {
      "type": "aws_s3"
    }
  }
}
[sources.my_source_id]
type = "aws_s3"

sources:
  my_source_id:
    type: aws_s3

{
  "sources": {
    "my_source_id": {
      "type": "aws_s3",
      "compression": "auto",
      "endpoint": "http://127.0.0.0:5000/path/to/service",
      "force_path_style": true,
      "region": "us-east-1"
    }
  }
}
[sources.my_source_id]
type = "aws_s3"
compression = "auto"
endpoint = "http://127.0.0.0:5000/path/to/service"
force_path_style = true
region = "us-east-1"

sources:
  my_source_id:
    type: aws_s3
    compression: auto
    endpoint: http://127.0.0.0:5000/path/to/service
    force_path_style: true
    region: us-east-1

acknowledgements

optional object

Deprecated

This field is deprecated.

Controls how acknowledgements are handled by this source.

This setting is deprecated in favor of enabling acknowledgements at the global or sink level.

Enabling or disabling acknowledgements at the source level has no effect on acknowledgement behavior.

See End-to-end Acknowledgements for more information on how event acknowledgement is handled.

acknowledgements.enabled

optional bool
Whether or not end-to-end acknowledgements are enabled for this source.

auth

optional object
Configuration of the authentication strategy for interacting with AWS services.

auth.access_key_id

required string literal
The AWS access key ID.
Examples 
"AKIAIOSFODNN7EXAMPLE"

auth.assume_role

required string literal
The ARN of an IAM role to assume.
Examples 
"arn:aws:iam::123456789098:role/my_role"

auth.credentials_file

required string literal
Path to the credentials file.
Examples 
"/my/aws/credentials"

auth.external_id

optional string literal
The optional unique external ID in conjunction with role to assume.
Examples 
"randomEXAMPLEidString"

auth.imds

optional object
Configuration for authenticating with AWS through IMDS.
auth.imds.connect_timeout_seconds
optional uint
Connect timeout for IMDS.
default: 1(seconds)
auth.imds.max_attempts
optional uint
Number of IMDS retries for fetching tokens and metadata.
default: 4
auth.imds.read_timeout_seconds
optional uint
Read timeout for IMDS.
default: 1(seconds)

auth.load_timeout_secs

optional uint

Timeout for successfully loading any credentials, in seconds.

Relevant when the default credentials chain or assume_role is used.

Examples 
30

auth.profile

optional string literal

The credentials profile to use.

Used to select AWS credentials from a provided credentials file.

Examples 
"develop"
default: default

auth.region

optional string literal

The AWS region to send STS requests to.

If not set, this defaults to the configured region for the service itself.

Examples 
"us-west-2"

auth.secret_access_key

required string literal
The AWS secret access key.
Examples 
"wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY"

auth.session_name

optional string literal

The optional RoleSessionName is a unique session identifier for your assumed role.

Should be unique per principal or reason. If not set, session name will be autogenerated like assume-role-provider-1736428351340

Examples 
"vector-indexer-role"

auth.session_token

optional string literal
The AWS session token. See AWS temporary credentials
Examples 
"AQoDYXdz...AQoDYXdz..."

compression

optional string literal enum
The compression scheme used for decompressing objects retrieved from S3.
Enum options string literal
OptionDescription
auto

Automatically attempt to determine the compression scheme.

The compression scheme of the object is determined from its Content-Encoding and Content-Type metadata, as well as the key suffix (for example, .gz).

It is set to none if the compression scheme cannot be determined.

gzipGZIP.
noneUncompressed.
zstdZSTD.
default: auto

decoding

optional object
Configures how events are decoded from raw bytes.

decoding.avro

required object
Apache Avro-specific encoder options.
Relevant when: codec = "avro"
decoding.avro.schema
required string literal

The Avro schema definition. Please note that the following [apache_avro::types::Value] variants are currently not supported:

  • Date
  • Decimal
  • Duration
  • Fixed
  • TimeMillis
Examples 
"{ \"type\": \"record\", \"name\": \"log\", \"fields\": [{ \"name\": \"message\", \"type\": \"string\" }] }"
decoding.avro.strip_schema_id_prefix
required bool
For Avro datum encoded in Kafka messages, the bytes are prefixed with the schema ID. Set this to true to strip the schema ID prefix. According to Confluent Kafka’s document.

decoding.codec

optional string literal enum
The codec to use for decoding events.
Enum options
OptionDescription
avroDecodes the raw bytes as as an Apache Avro message.
bytesUses the raw bytes as-is.
gelf

Decodes the raw bytes as a GELF message.

This codec is experimental for the following reason:

The GELF specification is more strict than the actual Graylog receiver. Vector’s decoder currently adheres more strictly to the GELF spec, with the exception that some characters such as @ are allowed in field names.

Other GELF codecs such as Loki’s, use a Go SDK that is maintained by Graylog, and is much more relaxed than the GELF spec.

Going forward, Vector will use that Go SDK as the reference implementation, which means the codec may continue to relax the enforcement of specification.

influxdbDecodes the raw bytes as an Influxdb Line Protocol message.
jsonDecodes the raw bytes as JSON.
native

Decodes the raw bytes as native Protocol Buffers format.

This codec is experimental.

native_json

Decodes the raw bytes as native JSON format.

This codec is experimental.

protobufDecodes the raw bytes as protobuf.
syslog

Decodes the raw bytes as a Syslog message.

Decodes either as the RFC 3164-style format (“old” style) or the RFC 5424-style format (“new” style, includes structured data).

vrlDecodes the raw bytes as a string and passes them as input to a VRL program.
default: bytes

decoding.gelf

optional object
GELF-specific decoding options.
Relevant when: codec = "gelf"
decoding.gelf.lossy
optional bool

Determines whether or not to replace invalid UTF-8 sequences instead of failing.

When true, invalid UTF-8 sequences are replaced with the U+FFFD REPLACEMENT CHARACTER.

default: true

decoding.influxdb

optional object
Influxdb-specific decoding options.
Relevant when: codec = "influxdb"
decoding.influxdb.lossy
optional bool

Determines whether or not to replace invalid UTF-8 sequences instead of failing.

When true, invalid UTF-8 sequences are replaced with the U+FFFD REPLACEMENT CHARACTER.

default: true

decoding.json

optional object
JSON-specific decoding options.
Relevant when: codec = "json"
decoding.json.lossy
optional bool

Determines whether or not to replace invalid UTF-8 sequences instead of failing.

When true, invalid UTF-8 sequences are replaced with the U+FFFD REPLACEMENT CHARACTER.

default: true

decoding.native_json

optional object
Vector’s native JSON-specific decoding options.
Relevant when: codec = "native_json"
decoding.native_json.lossy
optional bool

Determines whether or not to replace invalid UTF-8 sequences instead of failing.

When true, invalid UTF-8 sequences are replaced with the U+FFFD REPLACEMENT CHARACTER.

default: true

decoding.protobuf

optional object
Protobuf-specific decoding options.
Relevant when: codec = "protobuf"
decoding.protobuf.desc_file
optional string literal

The path to the protobuf descriptor set file.

This file is the output of protoc -I <include path> -o <desc output path> <proto>

You can read more here.

decoding.protobuf.message_type
optional string literal
The name of the message type to use for serializing.
Examples 
"package.Message"

decoding.syslog

optional object
Syslog-specific decoding options.
Relevant when: codec = "syslog"
decoding.syslog.lossy
optional bool

Determines whether or not to replace invalid UTF-8 sequences instead of failing.

When true, invalid UTF-8 sequences are replaced with the U+FFFD REPLACEMENT CHARACTER.

default: true

decoding.vrl

required object
VRL-specific decoding options.
Relevant when: codec = "vrl"
decoding.vrl.source
required string literal
The Vector Remap Language (VRL) program to execute for each event. Note that the final contents of the . target will be used as the decoding result. Compilation error or use of ‘abort’ in a program will result in a decoding error.
decoding.vrl.timezone
optional string literal

The name of the timezone to apply to timestamp conversions that do not contain an explicit time zone. The time zone name may be any name in the TZ database, or local to indicate system local time.

If not set, local will be used.

Examples 
"local"
"America/New_York"
"EST5EDT"

endpoint

optional string literal
Custom endpoint for use with AWS-compatible services.
Examples 
"http://127.0.0.0:5000/path/to/service"

force_path_style

optional bool

Specifies which addressing style to use.

This controls whether the bucket name is in the hostname, or part of the URL.

default: true

framing

optional object

Framing configuration.

Framing handles how events are separated when encoded in a raw byte form, where each event is a frame that must be prefixed, or delimited, in a way that marks where an event begins and ends within the byte stream.

framing.character_delimited

required object
Options for the character delimited decoder.
Relevant when: method = "character_delimited"
framing.character_delimited.delimiter
required ascii_char
The character that delimits byte sequences.
framing.character_delimited.max_length
optional uint

The maximum length of the byte buffer.

This length does not include the trailing delimiter.

By default, there is no maximum length enforced. If events are malformed, this can lead to additional resource usage as events continue to be buffered in memory, and can potentially lead to memory exhaustion in extreme cases.

If there is a risk of processing malformed data, such as logs with user-controlled input, consider setting the maximum length to a reasonably large value as a safety net. This ensures that processing is not actually unbounded.

framing.chunked_gelf

optional object
Options for the chunked GELF decoder.
Relevant when: method = "chunked_gelf"
framing.chunked_gelf.decompression
optional string literal enum
Decompression configuration for GELF messages.
Enum options
OptionDescription
AutoAutomatically detect the decompression method based on the magic bytes of the message.
GzipUse Gzip decompression.
NoneDo not decompress the message.
ZlibUse Zlib decompression.
default: Auto
framing.chunked_gelf.max_length
optional uint

The maximum length of a single GELF message, in bytes. Messages longer than this length will be dropped. If this option is not set, the decoder does not limit the length of messages and the per-message memory is unbounded.

Note that a message can be composed of multiple chunks and this limit is applied to the whole message, not to individual chunks.

This limit takes only into account the message’s payload and the GELF header bytes are excluded from the calculation. The message’s payload is the concatenation of all the chunks’ payloads.

framing.chunked_gelf.pending_messages_limit
optional uint
The maximum number of pending incomplete messages. If this limit is reached, the decoder starts dropping chunks of new messages, ensuring the memory usage of the decoder’s state is bounded. If this option is not set, the decoder does not limit the number of pending messages and the memory usage of its messages buffer can grow unbounded. This matches Graylog Server’s behavior.
framing.chunked_gelf.timeout_secs
optional float
The timeout, in seconds, for a message to be fully received. If the timeout is reached, the decoder drops all the received chunks of the timed out message.
default: 5

framing.length_delimited

required object
Options for the length delimited decoder.
Relevant when: method = "length_delimited"
framing.length_delimited.length_field_is_big_endian
optional bool
Length field byte order (little or big endian)
default: true
framing.length_delimited.length_field_length
optional uint
Number of bytes representing the field length
default: 4
framing.length_delimited.length_field_offset
optional uint
Number of bytes in the header before the length field
framing.length_delimited.max_frame_length
optional uint
Maximum frame length
default: 8.388608e+06

framing.method

optional string literal enum
The framing method.
Enum options
OptionDescription
bytesByte frames are passed through as-is according to the underlying I/O boundaries (for example, split between messages or stream segments).
character_delimitedByte frames which are delimited by a chosen character.
chunked_gelfByte frames which are chunked GELF messages.
length_delimitedByte frames which are prefixed by an unsigned big-endian 32-bit integer indicating the length.
newline_delimitedByte frames which are delimited by a newline character.
octet_countingByte frames according to the octet counting format.
default: newline_delimited

framing.newline_delimited

optional object
Options for the newline delimited decoder.
Relevant when: method = "newline_delimited"
framing.newline_delimited.max_length
optional uint

The maximum length of the byte buffer.

This length does not include the trailing delimiter.

By default, there is no maximum length enforced. If events are malformed, this can lead to additional resource usage as events continue to be buffered in memory, and can potentially lead to memory exhaustion in extreme cases.

If there is a risk of processing malformed data, such as logs with user-controlled input, consider setting the maximum length to a reasonably large value as a safety net. This ensures that processing is not actually unbounded.

framing.octet_counting

optional object
Options for the octet counting decoder.
Relevant when: method = "octet_counting"
framing.octet_counting.max_length
optional uint
The maximum length of the byte buffer.

multiline

optional object

Multiline aggregation configuration.

If not specified, multiline aggregation is disabled.

multiline.condition_pattern

required string literal

Regular expression pattern that is used to determine whether or not more lines should be read.

This setting must be configured in conjunction with mode.

Examples 
"^[\\s]+"
"\\\\$"
"^(INFO|ERROR) "
";$"

multiline.mode

required string literal enum

Aggregation mode.

This setting must be configured in conjunction with condition_pattern.

Enum options
OptionDescription
continue_past

All consecutive lines matching this pattern, plus one additional line, are included in the group.

This is useful in cases where a log message ends with a continuation marker, such as a backslash, indicating that the following line is part of the same message.

continue_through

All consecutive lines matching this pattern are included in the group.

The first line (the line that matched the start pattern) does not need to match the ContinueThrough pattern.

This is useful in cases such as a Java stack trace, where some indicator in the line (such as a leading whitespace) indicates that it is an extension of the proceeding line.

halt_before

All consecutive lines not matching this pattern are included in the group.

This is useful where a log line contains a marker indicating that it begins a new message.

halt_with

All consecutive lines, up to and including the first line matching this pattern, are included in the group.

This is useful where a log line ends with a termination marker, such as a semicolon.

Examples 
"continue_past"
"continue_through"
"halt_before"
"halt_with"

multiline.start_pattern

required string literal
Regular expression pattern that is used to match the start of a new message.
Examples 
"^[\\s]+"
"\\\\$"
"^(INFO|ERROR) "
";$"

multiline.timeout_ms

required uint

The maximum amount of time to wait for the next additional line, in milliseconds.

Once this timeout is reached, the buffered message is guaranteed to be flushed, even if incomplete.

Examples 
1000
600000

proxy

optional object

Proxy configuration.

Configure to proxy traffic through an HTTP(S) proxy when making external requests.

Similar to common proxy configuration convention, you can set different proxies to use based on the type of traffic being proxied. You can also set specific hosts that should not be proxied.

proxy.enabled

optional bool
Enables proxying support.
default: true

proxy.http

optional string literal

Proxy endpoint to use when proxying HTTP traffic.

Must be a valid URI string.

Examples 
"http://foo.bar:3128"

proxy.https

optional string literal

Proxy endpoint to use when proxying HTTPS traffic.

Must be a valid URI string.

Examples 
"http://foo.bar:3128"

proxy.no_proxy

optional [string]

A list of hosts to avoid proxying.

Multiple patterns are allowed:

PatternExample match
Domain namesexample.com matches requests to example.com
Wildcard domains.example.com matches requests to example.com and its subdomains
IP addresses127.0.0.1 matches requests to 127.0.0.1
CIDR blocks192.168.0.0/16 matches requests to any IP addresses in this range
Splat* matches all hosts

region

optional string literal
The AWS region of the target service.
Examples 
"us-east-1"

sqs

optional object
Configuration options for SQS.

sqs.client_concurrency

optional uint

Number of concurrent tasks to create for polling the queue for messages.

Defaults to the number of available CPUs on the system.

Should not typically need to be changed, but it can sometimes be beneficial to raise this value when there is a high rate of messages being pushed into the queue and the objects being fetched are small. In these cases, system resources may not be fully utilized without fetching more messages per second, as the SQS message consumption rate affects the S3 object retrieval rate.

Examples 
5

sqs.connect_timeout_seconds

optional uint

The connection timeout for AWS requests

Limits the amount of time allowed to initiate a socket connection.

Examples 
20

sqs.deferred

optional object
Configuration for deferring events to another queue based on their age.
sqs.deferred.max_age_secs
required uint

Event must have been emitted within the last max_age_secs seconds to be processed.

If the event is older, it is forwarded to the queue_url for later processing.

Examples 
3600
sqs.deferred.queue_url
required string literal
The URL of the queue to forward events to when they are older than max_age_secs.
Examples 
"https://sqs.us-east-2.amazonaws.com/123456789012/MyQueue"

sqs.delete_failed_message

optional bool

Whether to delete non-retryable messages.

If a message is rejected by the sink and not retryable, it is deleted from the queue.

default: true

sqs.delete_message

optional bool

Whether to delete the message once it is processed.

It can be useful to set this to false for debugging or during the initial setup.

default: true

sqs.max_number_of_messages

optional uint

Maximum number of messages to poll from SQS in a batch

Defaults to 10

Should be set to a smaller value when the files are large to help prevent the ingestion of one file from causing the other files to exceed the visibility_timeout. Valid values are 1 - 10

Examples 
1
default: 10

sqs.operation_timeout_seconds

optional uint

The operation timeout for AWS requests

Limits the amount of time allowed for an operation to be fully serviced; an operation represents the full request/response lifecycle of a call to a service. Take care when configuring this settings to allow enough time for the polling interval configured in poll_secs

Examples 
20

sqs.poll_secs

optional uint

How long to wait while polling the queue for new messages, in seconds.

Generally, this should not be changed unless instructed to do so, as if messages are available, they are always consumed, regardless of the value of poll_secs.

default: 15(seconds)

sqs.queue_url

required string literal
The URL of the SQS queue to poll for bucket notifications.
Examples 
"https://sqs.us-east-2.amazonaws.com/123456789012/MyQueue"

sqs.read_timeout_seconds

optional uint

The read timeout for AWS requests

Limits the amount of time allowed to read the first byte of a response from the time the request is initiated. Take care when configuring this settings to allow enough time for the polling interval configured in poll_secs

Examples 
20

sqs.tls_options

optional object
TLS configuration.
sqs.tls_options.alpn_protocols
optional [string]

Sets the list of supported ALPN protocols.

Declare the supported ALPN protocols, which are used during negotiation with a peer. They are prioritized in the order that they are defined.

sqs.tls_options.ca_file
optional string literal

Absolute path to an additional CA certificate file.

The certificate must be in the DER or PEM (X.509) format. Additionally, the certificate can be provided as an inline string in PEM format.

Examples 
"/path/to/certificate_authority.crt"
sqs.tls_options.crt_file
optional string literal

Absolute path to a certificate file used to identify this server.

The certificate must be in DER, PEM (X.509), or PKCS#12 format. Additionally, the certificate can be provided as an inline string in PEM format.

If this is set and is not a PKCS#12 archive, key_file must also be set.

Examples 
"/path/to/host_certificate.crt"
sqs.tls_options.key_file
optional string literal

Absolute path to a private key file used to identify this server.

The key must be in DER or PEM (PKCS#8) format. Additionally, the key can be provided as an inline string in PEM format.

Examples 
"/path/to/host_certificate.key"
sqs.tls_options.key_pass
optional string literal

Passphrase used to unlock the encrypted key file.

This has no effect unless key_file is set.

Examples 
"${KEY_PASS_ENV_VAR}"
"PassWord1"
sqs.tls_options.server_name
optional string literal

Server name to use when using Server Name Indication (SNI).

Only relevant for outgoing connections.

Examples 
"www.example.com"
sqs.tls_options.verify_certificate
optional bool

Enables certificate verification. For components that create a server, this requires that the client connections have a valid client certificate. For components that initiate requests, this validates that the upstream has a valid certificate.

If enabled, certificates must not be expired and must be issued by a trusted issuer. This verification operates in a hierarchical manner, checking that the leaf certificate (the certificate presented by the client/server) is not only valid, but that the issuer of that certificate is also valid, and so on, until the verification process reaches a root certificate.

Do NOT set this to false unless you understand the risks of not verifying the validity of certificates.

sqs.tls_options.verify_hostname
optional bool

Enables hostname verification.

If enabled, the hostname used to connect to the remote host must be present in the TLS certificate presented by the remote host, either as the Common Name or as an entry in the Subject Alternative Name extension.

Only relevant for outgoing connections.

Do NOT set this to false unless you understand the risks of not verifying the remote hostname.

sqs.visibility_timeout_secs

optional uint

The visibility timeout to use for messages, in seconds.

This controls how long a message is left unavailable after it is received. If a message is received, and takes longer than visibility_timeout_secs to process and delete the message from the queue, it is made available again for another consumer.

This can happen if there is an issue between consuming a message and deleting it.

default: 300(seconds)

tls_options

optional object
TLS configuration.

tls_options.alpn_protocols

optional [string]

Sets the list of supported ALPN protocols.

Declare the supported ALPN protocols, which are used during negotiation with a peer. They are prioritized in the order that they are defined.

tls_options.ca_file

optional string literal

Absolute path to an additional CA certificate file.

The certificate must be in the DER or PEM (X.509) format. Additionally, the certificate can be provided as an inline string in PEM format.

Examples 
"/path/to/certificate_authority.crt"

tls_options.crt_file

optional string literal

Absolute path to a certificate file used to identify this server.

The certificate must be in DER, PEM (X.509), or PKCS#12 format. Additionally, the certificate can be provided as an inline string in PEM format.

If this is set and is not a PKCS#12 archive, key_file must also be set.

Examples 
"/path/to/host_certificate.crt"

tls_options.key_file

optional string literal

Absolute path to a private key file used to identify this server.

The key must be in DER or PEM (PKCS#8) format. Additionally, the key can be provided as an inline string in PEM format.

Examples 
"/path/to/host_certificate.key"

tls_options.key_pass

optional string literal

Passphrase used to unlock the encrypted key file.

This has no effect unless key_file is set.

Examples 
"${KEY_PASS_ENV_VAR}"
"PassWord1"

tls_options.server_name

optional string literal

Server name to use when using Server Name Indication (SNI).

Only relevant for outgoing connections.

Examples 
"www.example.com"

tls_options.verify_certificate

optional bool

Enables certificate verification. For components that create a server, this requires that the client connections have a valid client certificate. For components that initiate requests, this validates that the upstream has a valid certificate.

If enabled, certificates must not be expired and must be issued by a trusted issuer. This verification operates in a hierarchical manner, checking that the leaf certificate (the certificate presented by the client/server) is not only valid, but that the issuer of that certificate is also valid, and so on, until the verification process reaches a root certificate.

Do NOT set this to false unless you understand the risks of not verifying the validity of certificates.

tls_options.verify_hostname

optional bool

Enables hostname verification.

If enabled, the hostname used to connect to the remote host must be present in the TLS certificate presented by the remote host, either as the Common Name or as an entry in the Subject Alternative Name extension.

Only relevant for outgoing connections.

Do NOT set this to false unless you understand the risks of not verifying the remote hostname.

Environment variables

AWS_ACCESS_KEY_ID

common optional string literal
The AWS access key id. Used for AWS authentication when communicating with AWS services.
Examples
AKIAIOSFODNN7EXAMPLE

AWS_CONFIG_FILE

common optional string literal
Specifies the location of the file that the AWS CLI uses to store configuration profiles.
Default: ~/.aws/config

AWS_DEFAULT_REGION

common optional string literal
The default AWS region.
Examples
/path/to/credentials.json

AWS_PROFILE

common optional string literal
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
Examples
my-custom-profile

AWS_ROLE_SESSION_NAME

common optional string literal
Specifies a name to associate with the role session. This value appears in CloudTrail logs for commands performed by the user of this profile.
Examples
vector-session

AWS_SECRET_ACCESS_KEY

common optional string literal
The AWS secret access key. Used for AWS authentication when communicating with AWS services.
Examples
wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY

AWS_SESSION_TOKEN

common optional string literal
The AWS session token. Used for AWS authentication when communicating with AWS services.
Examples
AQoEXAMPLEH4aoAH0gNCAPy...truncated...zrkuWJOgQs8IZZaIv2BXIa2R4Olgk

AWS_SHARED_CREDENTIALS_FILE

common optional string literal
Specifies the location of the file that the AWS CLI uses to store access keys.
Default: ~/.aws/credentials

HTTPS_PROXY

common optional string literal

The global URL to proxy HTTPS requests through.

If another HTTPS proxy is set in the configuration file or at a component level, this one will be overridden.

The lowercase variant has priority over the uppercase one.

Examples
http://foo.bar:3128

HTTP_PROXY

common optional string literal

The global URL to proxy HTTP requests through.

If another HTTP proxy is set in the configuration file or at a component level, this one will be overridden.

The lowercase variant has priority over the uppercase one.

Examples
http://foo.bar:3128

NO_PROXY

common optional string literal

List of hosts to avoid proxying globally.

Allowed patterns here include:

PatternExample match
Domain namesexample.com matches requests to example.com
Wildcard domains.example.come matches requests to example.com and its subdomains
IP addresses127.0.0.1 matches requests to 127.0.0.1
CIDR blocks192.168.0.0./16 matches requests to any IP addresses in this range
Splat* matches all hosts

If another no_proxy value is set in the configuration file or at a component level, this one is overridden.

The lowercase variant has priority over the uppercase one.

Examples
localhost,.example.com,192.168.0.0./16
*

http_proxy

common optional string literal

The global URL to proxy HTTP requests through.

If another HTTP proxy is set in the configuration file or at a component level, this one will be overridden.

The lowercase variant has priority over the uppercase one.

Examples
http://foo.bar:3128

https_proxy

common optional string literal

The global URL to proxy HTTPS requests through.

If another HTTPS proxy is set in the configuration file or at a component level, this one will be overridden.

The lowercase variant has priority over the uppercase one.

Examples
http://foo.bar:3128

no_proxy

common optional string literal

List of hosts to avoid proxying globally.

Allowed patterns here include:

PatternExample match
Domain namesexample.com matches requests to example.com
Wildcard domains.example.come matches requests to example.com and its subdomains
IP addresses127.0.0.1 matches requests to 127.0.0.1
CIDR blocks192.168.0.0./16 matches requests to any IP addresses in this range
Splat* matches all hosts

If another no_proxy value is set in the configuration file or at a component level, this one is overridden.

The lowercase variant has priority over the uppercase one.

Examples
localhost,.example.com,192.168.0.0./16
*

Outputs

<component_id>

Default output stream of the component. Use this component’s ID as an input to downstream transforms and sinks.

Output Types

Logs

Warning

The fields shown below will be different if log namespacing is enabled. See Log Namespacing for more details

Object

A line from an S3 object.
Fields
bucket required string literal
The bucket of the object the line came from.
Examples
my-bucket
message required string literal
A line from the S3 object.
Examples
53.126.150.246 - - [01/Oct/2020:11:25:58 -0400] "GET /disintermediate HTTP/2.0" 401 20308
object required string literal
The object the line came from.
Examples
AWSLogs/111111111111/vpcflowlogs/us-east-1/2020/10/26/111111111111_vpcflowlogs_us-east-1_fl-0c5605d9f1baf680d_20201026T1950Z_b1ea4a7a.log.gz
region required string literal
The AWS region bucket is in.
Examples
us-east-1
source_type required string literal
The name of the source type.
Examples
aws_s3
timestamp required timestamp
The Last-Modified time of the object. Defaults the current timestamp if this information is missing.
Examples
2020-10-10T17:07:36.452332Z

Telemetry

Metrics

link

component_discarded_events_total

counter
The number of events dropped by this component.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
host optional
The hostname of the system Vector is running on.
intentional
True if the events were discarded intentionally, like a filter transform, or false if due to an error.
pid optional
The process ID of the Vector instance.

component_errors_total

counter
The total number of errors encountered by this component.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
error_type
The type of the error
host optional
The hostname of the system Vector is running on.
pid optional
The process ID of the Vector instance.
stage
The stage within the component at which the error occurred.

component_received_bytes_total

counter
The number of raw bytes accepted by this component from source origins.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
container_name optional
The name of the container from which the data originated.
file optional
The file from which the data originated.
host optional
The hostname of the system Vector is running on.
mode optional
The connection mode used by the component.
peer_addr optional
The IP from which the data originated.
peer_path optional
The pathname from which the data originated.
pid optional
The process ID of the Vector instance.
pod_name optional
The name of the pod from which the data originated.
uri optional
The sanitized URI from which the data originated.

component_received_event_bytes_total

counter
The number of event bytes accepted by this component either from tagged origins like file and uri, or cumulatively from other origins.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
container_name optional
The name of the container from which the data originated.
file optional
The file from which the data originated.
host optional
The hostname of the system Vector is running on.
mode optional
The connection mode used by the component.
peer_addr optional
The IP from which the data originated.
peer_path optional
The pathname from which the data originated.
pid optional
The process ID of the Vector instance.
pod_name optional
The name of the pod from which the data originated.
uri optional
The sanitized URI from which the data originated.

component_received_events_count

histogram

A histogram of the number of events passed in each internal batch in Vector’s internal topology.

Note that this is separate than sink-level batching. It is mostly useful for low level debugging performance issues in Vector due to small internal batches.

component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
container_name optional
The name of the container from which the data originated.
file optional
The file from which the data originated.
host optional
The hostname of the system Vector is running on.
mode optional
The connection mode used by the component.
peer_addr optional
The IP from which the data originated.
peer_path optional
The pathname from which the data originated.
pid optional
The process ID of the Vector instance.
pod_name optional
The name of the pod from which the data originated.
uri optional
The sanitized URI from which the data originated.

component_received_events_total

counter
The number of events accepted by this component either from tagged origins like file and uri, or cumulatively from other origins.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
container_name optional
The name of the container from which the data originated.
file optional
The file from which the data originated.
host optional
The hostname of the system Vector is running on.
mode optional
The connection mode used by the component.
peer_addr optional
The IP from which the data originated.
peer_path optional
The pathname from which the data originated.
pid optional
The process ID of the Vector instance.
pod_name optional
The name of the pod from which the data originated.
uri optional
The sanitized URI from which the data originated.

component_sent_event_bytes_total

counter
The total number of event bytes emitted by this component.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
host optional
The hostname of the system Vector is running on.
output optional
The specific output of the component.
pid optional
The process ID of the Vector instance.

component_sent_events_total

counter
The total number of events emitted by this component.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
host optional
The hostname of the system Vector is running on.
output optional
The specific output of the component.
pid optional
The process ID of the Vector instance.

source_lag_time_seconds

histogram
The difference between the timestamp recorded in each event and the time when it was ingested, expressed as fractional seconds.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
host optional
The hostname of the system Vector is running on.
pid optional
The process ID of the Vector instance.

sqs_message_delete_succeeded_total

counter
The total number of successful deletions of SQS messages.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
host optional
The hostname of the system Vector is running on.
pid optional
The process ID of the Vector instance.

sqs_message_processing_succeeded_total

counter
The total number of SQS messages successfully processed.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
host optional
The hostname of the system Vector is running on.
pid optional
The process ID of the Vector instance.

sqs_message_receive_succeeded_total

counter
The total number of times successfully receiving SQS messages.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
host optional
The hostname of the system Vector is running on.
pid optional
The process ID of the Vector instance.

sqs_message_received_messages_total

counter
The total number of received SQS messages.
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
host optional
The hostname of the system Vector is running on.
pid optional
The process ID of the Vector instance.

sqs_s3_event_record_ignored_total

counter
The total number of times an S3 record in an SQS message was ignored (for an event that was not ObjectCreated).
component_id
The Vector component ID.
component_kind
The Vector component kind.
component_type
The Vector component type.
host optional
The hostname of the system Vector is running on.
ignore_type
The reason for ignoring the S3 record
pid optional
The process ID of the Vector instance.

Permissions

Platform: Amazon Web Services
Relevant policies
PolicyRequired forRequired when
s3:GetObject
  • operation
Platform: Amazon Web Services
Relevant policies
PolicyRequired forRequired when
sqs:ReceiveMessage
  • operation
sqs:DeleteMessage
  • operation
delete_message is set to true

How it works

AWS authentication

Vector checks for AWS credentials in the following order:

  1. The auth.access_key_id and auth.secret_access_key options.
  2. The AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment variables.
  3. In Web Identity Token credentials from the environment or container (including EKS). These credentials will automatically refresh when expired.
  4. ECS credentials (IAM roles for tasks). These credentials will automatically refresh when expired.
  5. As entries in the credentials file in the .aws directory in your home directory (~/.aws/credentials on Linux, OS X, and Unix; %userprofile%\.aws\credentials on Microsoft Windows).
  6. Using a named profile specified in the credentials file via the AWS_PROFILE environment variable.
  7. The IAM instance profile (only works if running on an EC2 instance with an instance profile/role). Requires IMDSv2 to be enabled. For EKS, you may need to increase the metadata token response hop limit to 2. These credentials will automatically refresh when expired.

If no credentials are found, Vector’s health check fails and an error is 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. Such created AWS access keys can be used via auth.access_key_id and auth.secret_access_key options.

Assuming roles

Vector can assume an AWS IAM role via the auth.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 augments events with helpful context keys.

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 remap transform:

[transforms.flow_logs]
type = "remap" # required
inputs = ["s3"]
drop_on_error = false
source = '''
. = parse_aws_vpc_flow_log!(string!(.message))
'''

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

[transforms.elasticloadbalancing_fields_parsed]
type = "remap" # required
inputs = ["s3"]
drop_on_error = false
source = '''
. = parse_aws_alb_log!(string!(.message))
.request_url_parts = parse_url!(.request_url)
'''

State

This component is stateless, meaning its behavior is consistent across each input.

Transport Layer Security (TLS)

Vector uses OpenSSL for TLS protocols due to OpenSSL’s maturity. You can enable and adjust TLS behavior via the tls.* options and/or via an OpenSSL configuration file. The file location defaults to /usr/local/ssl/openssl.cnf or can be specified with the OPENSSL_CONF environment variable.
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