Failed to get config: cannot resolve the configuration: retrieved value (type=string) cannot be used as a Conf

[nbalmaceda-koronet]

Describe the bug
SSM Parameter Store option to include aws-otel-collector config file isn't working properly

Steps to reproduce
This is my task definition, when I try to run my application using this definition as a sidecar it doesn't work and fails

{
      "name": "aws-collector",
      "image": "amazon/aws-otel-collector:latest",
      "cpu": 128,
      "memory": 512,
      "portMappings": [],
      "essential": true,
      "command": [
          "--config=/etc/ecs/ecs-default-config.yaml"
      ],
      "environment": [],
      "secrets": [
          {
              "name": "AOT_CONFIG_CONTENT",
              "valueFrom": "arn:aws:ssm:<region>:<account-id>:parameter/test/otel-config-grafana"
          }
      ],
}

What did you expect to see?
I expected to see the configuration correctly set, but I just received below logs

January 14, 2025 at 18:43 (UTC-3:00) | 2025/01/14 21:43:40 found no extra config, skip it, err: open /opt/aws/aws-otel-collector/etc/extracfg.txt: no such file or directory | aws-collector

January 14, 2025 at 18:43 (UTC-3:00) | 2025/01/14 21:43:40 attn: users of the `datadog`, `logzio`, `sapm`, `signalfx` exporter components. please refer to https://github.com/aws-observability/aws-otel-collector/issues/2734 in regards to an upcoming ADOT Collector breaking change | aws-collector

January 14, 2025 at 18:43 (UTC-3:00) | Error: failed to get config: cannot resolve the configuration: retrieved value (type=string) cannot be used as a Conf | aws-collector

January 14, 2025 at 18:43 (UTC-3:00) | 2025/01/14 21:43:40 application run finished with error: failed to get config: cannot resolve the configuration: retrieved value (type=string) cannot be used as a Conf | aws-collector

January 14, 2025 at 18:43 (UTC-3:00) | 2025/01/14 21:43:40 ADOT Collector version: v0.42.0 | aws-collector

Environment
It's related to deployment of the ADOT Collector in ECS, my Collector file was automatically generated by Grafana Cloud (Alloy)

otelcol.receiver.otlp "default" {
	grpc { }
	http { }

	output {
		metrics = [otelcol.processor.resourcedetection.default.input]
		logs    = [otelcol.processor.resourcedetection.default.input]
		traces  = [otelcol.processor.resourcedetection.default.input]
	}
}

otelcol.processor.resourcedetection "default" {
	detectors = ["env", "system", "ecs"]

	system {
		hostname_sources = ["os"]
	}

	output {
		metrics = [otelcol.processor.transform.drop_unneeded_resource_attributes.input]
		logs    = [otelcol.processor.transform.drop_unneeded_resource_attributes.input]
		traces  = [otelcol.processor.transform.drop_unneeded_resource_attributes.input]
	}
}

otelcol.processor.transform "drop_unneeded_resource_attributes" {
	error_mode = "ignore"

	trace_statements {
		context    = "resource"
		statements = [
			"delete_key(attributes, \"k8s.pod.start_time\")",
			"delete_key(attributes, \"os.description\")",
			"delete_key(attributes, \"os.type\")",
			"delete_key(attributes, \"process.command_args\")",
			"delete_key(attributes, \"process.executable.path\")",
			"delete_key(attributes, \"process.pid\")",
			"delete_key(attributes, \"process.runtime.description\")",
			"delete_key(attributes, \"process.runtime.name\")",
			"delete_key(attributes, \"process.runtime.version\")",
		]
	}

	metric_statements {
		context    = "resource"
		statements = [
			"delete_key(attributes, \"k8s.pod.start_time\")",
			"delete_key(attributes, \"os.description\")",
			"delete_key(attributes, \"os.type\")",
			"delete_key(attributes, \"process.command_args\")",
			"delete_key(attributes, \"process.executable.path\")",
			"delete_key(attributes, \"process.pid\")",
			"delete_key(attributes, \"process.runtime.description\")",
			"delete_key(attributes, \"process.runtime.name\")",
			"delete_key(attributes, \"process.runtime.version\")",
		]
	}

	log_statements {
		context    = "resource"
		statements = [
			"delete_key(attributes, \"k8s.pod.start_time\")",
			"delete_key(attributes, \"os.description\")",
			"delete_key(attributes, \"os.type\")",
			"delete_key(attributes, \"process.command_args\")",
			"delete_key(attributes, \"process.executable.path\")",
			"delete_key(attributes, \"process.pid\")",
			"delete_key(attributes, \"process.runtime.description\")",
			"delete_key(attributes, \"process.runtime.name\")",
			"delete_key(attributes, \"process.runtime.version\")",
		]
	}

	output {
		metrics = [otelcol.processor.transform.add_resource_attributes_as_metric_attributes.input]
		logs    = [otelcol.processor.batch.default.input]
		traces  = [
			otelcol.processor.batch.default.input,
			otelcol.connector.host_info.default.input,
		]
	}
}

otelcol.connector.host_info "default" {
	host_identifiers = ["host.name"]

	output {
		metrics = [otelcol.processor.batch.default.input]
	}
}

otelcol.processor.transform "add_resource_attributes_as_metric_attributes" {
	error_mode = "ignore"

	metric_statements {
		context    = "datapoint"
		statements = [
			"set(attributes[\"deployment.environment\"], resource.attributes[\"deployment.environment\"])",
			"set(attributes[\"service.version\"], resource.attributes[\"service.version\"])",
		]
	}

	output {
		metrics = [otelcol.processor.batch.default.input]
	}
}

otelcol.processor.batch "default" {
	output {
		metrics = [otelcol.exporter.otlphttp.grafana_cloud.input]
		logs    = [otelcol.exporter.otlphttp.grafana_cloud.input]
		traces  = [otelcol.exporter.otlphttp.grafana_cloud.input]
	}
}

otelcol.exporter.otlphttp "grafana_cloud" {
	client {
		endpoint = "https://otlp-gateway-prod-us-east-2.grafana.net/otlp"
		auth     = otelcol.auth.basic.grafana_cloud.handler
	}
}

otelcol.auth.basic "grafana_cloud" {
	username = "secretUsername"
	password = "secretPassword"
}