[New Integration] StatsD OpenTelemetry Input Package

.github/CODEOWNERS

@@ -426,6 +426,7 @@
 /packages/squid @elastic/integration-experience
 /packages/stan @elastic/obs-infraobs-integrations
 /packages/statsd_input @elastic/obs-infraobs-integrations
+/packages/statsd_input_otel @elastic/obs-infraobs-integrations
 /packages/stormshield @elastic/integration-experience
 /packages/sublime_security @elastic/security-service-integrations
 /packages/suricata @elastic/integration-experience

packages/statsd_input_otel/LICENSE.txt

@@ -0,0 +1,93 @@
+Elastic License 2.0
+
+URL: https://www.elastic.co/licensing/elastic-license
+
+## Acceptance
+
+By using the software, you agree to all of the terms and conditions below.
+
+## Copyright License
+
+The licensor grants you a non-exclusive, royalty-free, worldwide,
+non-sublicensable, non-transferable license to use, copy, distribute, make
+available, and prepare derivative works of the software, in each case subject to
+the limitations and conditions below.
+
+## Limitations
+
+You may not provide the software to third parties as a hosted or managed
+service, where the service provides users with access to any substantial set of
+the features or functionality of the software.
+
+You may not move, change, disable, or circumvent the license key functionality
+in the software, and you may not remove or obscure any functionality in the
+software that is protected by the license key.
+
+You may not alter, remove, or obscure any licensing, copyright, or other notices
+of the licensor in the software. Any use of the licensor's trademarks is subject
+to applicable law.
+
+## Patents
+
+The licensor grants you a license, under any patent claims the licensor can
+license, or becomes able to license, to make, have made, use, sell, offer for
+sale, import and have imported the software, in each case subject to the
+limitations and conditions in this license. This license does not cover any
+patent claims that you cause to be infringed by modifications or additions to
+the software. If you or your company make any written claim that the software
+infringes or contributes to infringement of any patent, your patent license for
+the software granted under these terms ends immediately. If your company makes
+such a claim, your patent license ends immediately for work on behalf of your
+company.
+
+## Notices
+
+You must ensure that anyone who gets a copy of any part of the software from you
+also gets a copy of these terms.
+
+If you modify the software, you must include in any modified copies of the
+software prominent notices stating that you have modified the software.
+
+## No Other Rights
+
+These terms do not imply any licenses other than those expressly granted in
+these terms.
+
+## Termination
+
+If you use the software in violation of these terms, such use is not licensed,
+and your licenses will automatically terminate. If the licensor provides you
+with a notice of your violation, and you cease all violation of this license no
+later than 30 days after you receive that notice, your licenses will be
+reinstated retroactively. However, if you violate these terms after such
+reinstatement, any additional violation of these terms will cause your licenses
+to terminate automatically and permanently.
+
+## No Liability
+
+*As far as the law allows, the software comes as is, without any warranty or
+condition, and the licensor will not be liable to you for any damages arising
+out of these terms or the use or nature of the software, under any kind of
+legal claim.*
+
+## Definitions
+
+The **licensor** is the entity offering these terms, and the **software** is the
+software the licensor makes available under these terms, including any portion
+of it.
+
+**you** refers to the individual or entity agreeing to these terms.
+
+**your company** is any legal entity, sole proprietorship, or other kind of
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+organization. **control** means ownership of substantially all the assets of an
+entity, or the power to direct its management and policies by vote, contract, or
+otherwise. Control can be direct or indirect.
+
+**your licenses** are all the licenses granted to you for the software under
+these terms.
+
+**use** means anything you do with the software requiring one of your licenses.
+
+**trademark** means trademarks, service marks, and similar rights.

packages/statsd_input_otel/_dev/deploy/docker/docker-compose.yml

@@ -0,0 +1,7 @@
+version: '2.3'
+services:
+  statsd_input_otel:
+    image: docker.elastic.co/observability/stream:v0.18.0
+    volumes:
+      - ./sample_logs:/sample_logs:ro
+    command: log --start-signal=SIGHUP --delay=10s --addr elastic-agent:8125 -p=udp /sample_logs/test-statsd.log

packages/statsd_input_otel/_dev/deploy/docker/sample_logs/test-statsd.log

@@ -0,0 +1,12 @@
+python.counter:1|c
+python.gauge.foo:10|g
+python.timer.total:0.07200241|ms
+python.counter:1|c
+python.gauge.foo:10|g
+python.timer.total:0.29730797|ms
+python.counter:1|c
+python.gauge.foo:10|g
+python.timer.total:0.30040741|ms
+python.counter:1|c
+python.gauge.foo:10|g
+python.timer.total:0.29134750|ms

packages/statsd_input_otel/_dev/deploy/variants.yml

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+variants:
+  default: {}
+default: default

packages/statsd_input_otel/_dev/test/policy/test-default.expected

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+connectors:
+    forward: {}
+exporters:
+    elasticsearch/componentid-0:
+        endpoints:
+            - https://elasticsearch:9200
+inputs: []
+output_permissions:
+    default:
+        _elastic_agent_checks:
+            cluster:
+                - monitor
+        _elastic_agent_monitoring:
+            indices: []
+        uuid-for-permissions-on-related-indices:
+            indices:
+                - names:
+                    - metrics-*-*
+                  privileges:
+                    - auto_configure
+                    - create_doc
+processors:
+    resourcedetection/componentid-0:
+        detectors:
+            - system
+    transform/componentid-1:
+        metric_statements:
+            - context: datapoint
+              statements:
+                - set(attributes["data_stream.type"], "metrics")
+                - set(attributes["data_stream.dataset"], "statsd_input_otel.statsdreceiver")
+                - set(attributes["data_stream.namespace"], "ep")
+receivers:
+    statsd/componentid-0:
+        aggregation_interval: 60s
+        enable_metric_type: false
+        endpoint: localhost:8125
+        is_monotonic_counter: false
+        transport: udp
+secret_references: []
+service:
+    pipelines:
+        metrics:
+            exporters:
+                - elasticsearch/componentid-0
+            receivers:
+                - forward
+        metrics/componentid-0:
+            exporters:
+                - forward
+            processors:
+                - resourcedetection/componentid-0
+                - transform/componentid-1
+            receivers:
+                - statsd/componentid-0

packages/statsd_input_otel/_dev/test/policy/test-default.yml

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+vars:
+  endpoint: "localhost:8125"
+  transport: udp
+  aggregation_interval: 60s
+  enable_metric_type: false
+  is_monotonic_counter: false

packages/statsd_input_otel/_dev/test/system/test-default-config.yml

@@ -0,0 +1,2 @@
+vars:
+  endpoint: "0.0.0.0:8125"

packages/statsd_input_otel/agent/input/input.yml.hbs

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+receivers:
+  statsd:
+    endpoint: {{endpoint}}
+    {{#if transport}}
+    transport: {{transport}}
+    {{/if}}
+    {{#if aggregation_interval}}
+    aggregation_interval: {{aggregation_interval}}
+    {{/if}}
+    enable_metric_type: {{enable_metric_type}}
+    is_monotonic_counter: {{is_monotonic_counter}}
+processors:
+  resourcedetection/system:
+    detectors: ["system"]
+service:
+  pipelines:
+    metrics:
+      receivers: [statsd]
+      processors: [resourcedetection/system]

packages/statsd_input_otel/changelog.yml

@@ -0,0 +1,6 @@
+# newer versions go on top
+- version: "0.1.0"
+  changes:
+    - description: Initial draft of the package
+      type: enhancement
+      link: https://github.com/elastic/integrations/issues/17108

packages/statsd_input_otel/docs/README.md

@@ -0,0 +1,61 @@
+# StatsD OpenTelemetry Input Package
+
+## Overview
+The StatsD OpenTelemetry Input Package for Elastic enables collection of metrics from StatsD-compatible applications through OpenTelemetry protocols using the [statsdreceiver](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/statsdreceiver#statsd-receiver).
+
+
+### How it works
+This package receives telemetry data from StatsD-compatible applications by configuring the StatsD endpoint in the Input Package, which then gets applied to the statsdreceiver present in the EDOT collector, which then forwards the data to Elastic Agent. The Elastic Agent processes and enriches the data before sending it to Elasticsearch for indexing and analysis.
+
+The StatsD receiver listens on a UDP (default), TCP, or Unix socket endpoint for incoming StatsD messages and parses them into OTLP equivalent metric representations.
+
+
+### Supported metric types
+
+**Counter (c)**
+:   Measurement which accumulates over period of time until flushed.
+
+**Gauge (g)**
+:   Measurement which can increase, decrease or be set to a value.
+
+**Timer (ms)**
+:   Time measurement (in milliseconds) of an event.
+
+**Histogram (h)**
+:   Time measurement, alias for timer.
+
+
+### Supported tag extensions
+
+The StatsD receiver supports the following tag formats:
+
+**DogStatsD**
+`<metric name>:<value>|<type>|@<sample-rate>|#<tag-key>:<tag-value>,<tag-key>:<tag-value>`
+
+**InfluxDB**
+`<metric name>,<tag-key>=<tag-value>,<tag-key>=<tag-value>:<value>|<type>|@<sample-rate>`
+
+**Graphite 1.1.x**
+`<metric name>;<tag-key>=<tag-value>;<tag-key>=<tag-value>:<value>|<type>|@<sample-rate>`
+
+
+## Configuration options
+
+**Endpoint**
+:   Address and port to listen on. Default is `localhost:8125` for UDP and TCP transports.
+
+**Transport Protocol**
+:   Protocol used by the StatsD server. Supported values are `udp` (default), `tcp`, and `unixgram`.
+
+**Aggregation Interval**
+:   The aggregation time that the receiver aggregates the metrics, similar to the flush interval in StatsD server. Default is `60s`.
+
+**Enable Metric Type**
+:   When enabled, emits the StatsD metric type (gauge, counter, timer, histogram) as a label on the metric.
+
+**Monotonic Counter**
+:   When enabled, sets all counter metrics as monotonic.
+
+
+## Metrics reference
+For a complete list of all available metrics and their detailed descriptions, refer to the [StatsD Receiver documentation](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/statsdreceiver) in the upstream OpenTelemetry Collector repository.

packages/statsd_input_otel/manifest.yml

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+format_version: 3.5.0
+name: statsd_input_otel
+title: "StatsD OpenTelemetry Input Package"
+version: 0.1.0
+source:
+  license: "Elastic-2.0"
+description: "StatsD OpenTelemetry Input Package"
+type: input
+categories:
+  - observability
+  - opentelemetry
+  - custom
+conditions:
+  kibana:
+    version: "^9.2.0"
+  elastic:
+    subscription: "basic"
+icons:
+  - src: /img/statsd_otellogo.svg
+    title: StatsD OTel logo
+    size: 32x32
+    type: image/svg+xml
+policy_templates:
+  - name: statsdreceiver
+    type: metrics
+    title: StatsD OpenTelemetry Input
+    description: Collect StatsD metrics using OpenTelemetry Collector
+    input: otelcol
+    template_path: input.yml.hbs
+    vars:
+      - name: endpoint
+        type: text
+        required: true
+        title: Endpoint
+        description: Address and port to listen on for StatsD metrics.
+        default: localhost:8125
+      - name: transport
+        type: text
+        required: false
+        title: Transport Protocol
+        description: Protocol used by the StatsD server. Supported values are udp, tcp, and unixgram.
+        default: udp
+        show_user: false
+      - name: aggregation_interval
+        type: duration
+        required: false
+        title: Aggregation Interval
+        description: The aggregation time that the receiver aggregates the metrics (similar to the flush interval in StatsD server).
+        default: 60s
+        show_user: false
+      - name: enable_metric_type
+        type: bool
+        required: false
+        title: Enable Metric Type
+        description: Emit the StatsD metric type (gauge, counter, timer, histogram) as a label.
+        default: false
+        show_user: false
+      - name: is_monotonic_counter
+        type: bool
+        required: false
+        title: Monotonic Counter
+        description: Set all counter metrics as monotonic.
+        default: false
+        show_user: false
+owner:
+  github: elastic/obs-infraobs-integrations
+  type: elastic