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Reference

Components

otelcol

otelcol.exporter.awss3

Open source

Experimental

otelcol.exporter.awss3

EXPERIMENTAL: This is an experimental component. Experimental components are subject to frequent breaking changes, and may be removed with no equivalent replacement. The stability.level flag must be set to experimental to use the component.

otelcol.exporter.awss3 accepts telemetry data from other otelcol components and writes them to an AWS S3 bucket.

Note
otelcol.exporter.awss3 is a wrapper over the upstream OpenTelemetry Collector Contrib awss3 exporter. Bug reports or feature requests will be redirected to the upstream repository if necessary.

You can specify multiple otelcol.exporter.awss3 components by giving them different labels.

Usage

otelcol.exporter.awss3 "<LABEL>" {
  s3_uploader {
    region = "<REGION>"
    s3_bucket = "<BUCKET_NAME>"
    s3_prefix = "<PREFIX>"
  }
}

Replace the following:

<LABEL>: The label for the otelcol.exporter.awss3 component.
<REGION>: The AWS region.
<BUCKET_NAME>: The S3 bucket.
<PREFIX>: The prefix for the S3 key.

Arguments

otelcol.exporter.awss3 supports the following arguments:

Name	Type	Description	Default	Required
`encoding`	`string`	Encoding extension to use to marshal data. Overrides the `marshaler` configuration option if set.	`""`	no
`encoding_file_ext`	`string`	File format extension suffix when using the `encoding` configuration option. It can be left empty if a suffix shouldn’t be appended.	`""`	no

Blocks

The following blocks are supported inside the definition of otelcol.exporter.awss3:

Hierarchy	Block	Description	Required
s3_uploader	s3_uploader	Configures the AWS S3 bucket details to send telemetry data to.	yes
marshaler	marshaler	Marshaler used to produce output data.	no
debug_metrics	debug_metrics	Configures the metrics that this component generates to monitor its state.	no

s3_uploader block

The s3_uploader block configures the AWS S3 bucket details used by the component.

The following arguments are supported:

Name	Type	Description	Default	Required
`region`	`string`	The AWS region.	`"us-east-1"`	no
`s3_bucket`	`string`	The S3 bucket.		yes
`s3_prefix`	`string`	Prefix for the S3 key (root directory inside the bucket).		yes
`s3_partition`	`string`	Time granularity of S3 key: hour or minute.	`"minute"`	no
`role_arn`	`string`	The Role ARN to be assumed.		no
`file_prefix`	`string`	The file prefix defined by the user.		no
`endpoint`	`string`	Overrides the endpoint used by the exporter instead of constructing it from `region` and `s3_bucket`.		no
`s3_force_path_style`	`boolean`	Set this to `true` to force the request to use path-style requests	`false`	no
`disable_ssl`	`boolean`	Set this to `true` to disable SSL when sending requests.		`false`
`compression`	`string`	How should the file be compressed? `none`, `gzip`	`none`	no

marshaler block

Marshaler determines the format of data sent to AWS S3. Currently, the following marshalers are implemented:

otlp_json (default): the OpenTelemetry Protocol format, represented as JSON.
otlp_proto: the OpenTelemetry Protocol format, represented as Protocol Buffers. A single protobuf message is written into each object.
sumo_ic: the Sumo Logic Installed Collector Archive format. This format is supported only for logs.
body: export the log body as string. This format is supported only for logs.

The following arguments are supported:

Name	Type	Description	Default	Required
`type`	`string`	Marshaler used to produce output data.	`"otlp_json"`	no

debug_metrics block

The debug_metrics block configures the metrics that this component generates to monitor its state.

The following arguments are supported:

Name	Type	Description	Default	Required
`disable_high_cardinality_metrics`	`boolean`	Whether to disable certain high cardinality metrics.	`true`	no
`level`	`string`	Controls the level of detail for metrics emitted by the wrapped collector.	`"detailed"`	no

disable_high_cardinality_metrics is the Grafana Alloy equivalent to the telemetry.disableHighCardinalityMetrics feature gate in the OpenTelemetry Collector. It removes attributes that could cause high cardinality metrics. For example, attributes with IP addresses and port numbers in metrics about HTTP and gRPC connections are removed.

Note
If configured, disable_high_cardinality_metrics only applies to otelcol.exporter.* and otelcol.receiver.* components.

level is the Alloy equivalent to the telemetry.metrics.level feature gate in the OpenTelemetry Collector. Possible values are "none", "basic", "normal" and "detailed".

Encoding

Encoding overrides the marshaler if it’s present and sets it to use the encoding extension defined in the collector configuration.

Refer to the Open Telemetry [encoding extensions][] documentation for more information.

Compression

none (default): File compression isn’t used.
gzip: Files are compressed with Gzip. This doesn’t support sumo_icmarshaler.

Exported fields

The following fields are exported and can be referenced by other components:

Name	Type	Description
`input`	`otelcol.Consumer`	A value that other components can use to send telemetry data to.

input accepts otelcol.Consumer data for any telemetry signal (metrics, logs, or traces).

Component health

otelcol.exporter.awss3 is only reported as unhealthy if given an invalid configuration.

Debug information

otelcol.exporter.awss3 doesn’t expose any component-specific debug information.

Debug metrics

otelcol_exporter_sent_spans_total (counter): Number of spans successfully sent to destination.
otelcol_exporter_send_failed_spans_total (counter): Number of spans in failed attempts to send to destination.
otelcol_exporter_queue_capacity (gauge): Fixed capacity of the retry queue (in batches).
otelcol_exporter_queue_size (gauge): Current size of the retry queue (in batches).
rpc_client_duration_milliseconds (histogram): Measures the duration of inbound RPC.
rpc_client_request_size_bytes (histogram): Measures size of RPC request messages (uncompressed).
rpc_client_requests_per_rpc (histogram): Measures the number of messages received per RPC. Should be 1 for all non-streaming RPCs.
rpc_client_response_size_bytes (histogram): Measures size of RPC response messages (uncompressed).
rpc_client_responses_per_rpc (histogram): Measures the number of messages received per RPC. Should be 1 for all non-streaming RPCs.

Example

This example forwards scrape logs to an AWS S3 Bucket:

local.file_match "logs" {
  path_targets = [{
    __address__ = "localhost",
    __path__    = "/var/log/{syslog,messages,*.log}",
    instance    = constants.hostname,
    job         = "integrations/node_exporter",
  }]
}

loki.source.file "logs" {
  targets    = local.file_match.logs.targets
  forward_to = [otelcol.receiver.loki.default.receiver]
}

otelcol.receiver.loki "default" {
  output {
    logs = [otelcol.exporter.awss3.logs.input]
  }
}

otelcol.exporter.awss3 "logs" {
  s3_uploader {
    region = "us-east-1"
    s3_bucket = "logs_bucket"
    s3_prefix = "logs"
  }
}

Compatible components

otelcol.exporter.awss3 has exports that can be consumed by the following components:

Components that consume OpenTelemetry otelcol.Consumer

Note
Connecting some components may not be sensible or components may require further configuration to make the connection work correctly. Refer to the linked documentation for more details.

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