Upgrade to OTel v0.116.0

CHANGELOG.md

@@ -10,6 +10,15 @@ internal API changes are not present.
 Main (unreleased)
 -----------------
 
+### Breaking changes
+
+- Upgrade to OpenTelemetry Collector v0.116.0:
+  - `otelcol.processor.tailsampling`: Change decision precedence when using `and_sub_policy` and `invert_match`.
+    For more information, see the [release notes for Alloy 1.6][release-notes-alloy-1_6].
+
+    [#33671]: https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/33671
+    [release-notes-alloy-1_6]: https://grafana.com/docs/alloy/latest/release-notes/#v16
+
 ### Features
 
 - Add support for metrics in `otelcol.exporter.loadbalancing` (@madaraszg-tulip)
@@ -70,6 +79,58 @@ Main (unreleased)
 
 - Fixed an issue where the `otelcol.processor.interval` could not be used because the debug metrics were not set to default. (@wildum)
 
+- Upgrade to OpenTelemetry Collector v0.116.0:
+  - `otelcol.receiver.datadog`: Return a json reponse instead of "OK" when a trace is received with a newer protocol version.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/35705
+  - `otelcol.receiver.datadog`: Changes response message for `/api/v1/check_run` 202 response to be JSON and on par with Datadog API spec
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36029
+  - `otelcol.receiver.solace`: The Solace receiver may unexpectedly terminate on reporting traces when used with a memory limiter processor and under high load.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/35958
+  - `otelcol.receiver.solace`: Support converting the new `Move to Dead Message Queue` and new `Delete` spans generated by Solace Event Broker to OTLP.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36071
+  - `otelcol.exporter.datadog`: Stop prefixing `http_server_duration`, `http_server_request_size` and `http_server_response_size` with `otelcol`.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36265
+    These metrics can be from SDKs rather than collector. Stop prefixing them to be consistent with 
+    https://opentelemetry.io/docs/collector/internal-telemetry/#lists-of-internal-metrics
+  - `otelcol.receiver.datadog`: Add json handling for the `api/v2/series` endpoint in the datadogreceiver.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36218
+  - `otelcol.processor.span`: Add a new `keep_original_name` configuration argument 
+    to keep the original span name when extracting attributes from the span name.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36397
+  - `pkg/ottl`: Respect the `depth` option when flattening slices using `flatten`.
+    The `depth` option is also now required to be at least `1`.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36198
+  - `otelcol.exporter.loadbalancing`: Shutdown exporters during collector shutdown. This fixes a memory leak.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36024
+  - `otelcol.processor.k8sattributes`: New `wait_for_metadata` and `wait_for_metadata_timeout` configuration arguments, 
+    which block the processor startup until metadata is received from Kubernetes.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/32556
+  - `otelcol.processor.k8sattributes`: Enable the `k8sattr.fieldExtractConfigRegex.disallow` for all Alloy instances, 
+    to retain the behavior of `regex` argument in the `annotation` and `label` blocks.
+    When the feature gate is "deprecated" in the upstream Collector, Alloy users will need to use the transform processor instead.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/25128
+  - `otelcol.receiver.vcenter`: The existing code did not honor TLS settings beyond 'insecure'. 
+    All TLS client config should now be honored.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36482
+  - `otelcol.receiver.opencensus`: Do not report error message when OpenCensus receiver is shutdown cleanly.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36622
+  - `otelcol.processor.k8sattributes`: Fixed parsing of k8s image names to support images with tags and digests.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36145
+  - `otelcol.exporter.loadbalancing`: Adding sending_queue, retry_on_failure and timeout settings to loadbalancing exporter configuration.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/35378
+  - `otelcol.exporter.loadbalancing`: The k8sresolver was triggering exporter churn in the way the change event was handled.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/35658
+  - `otelcol.processor.k8sattributes`: Override extracted k8s attributes if original value has been empty.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36466
+  - `otelcol.exporter.awss3`: Upgrading to adopt aws sdk v2.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/36698
+  - `pkg/ottl`: GetXML Converter now supports selecting text, CDATA, and attribute (value) content.
+  - `otelcol.exporter.loadbalancing`: Adds a an optional `return_hostnames` configuration argument to the k8s resolver.
+     https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/35411
+  - `otelcol.exporter.kafka`, `otelcol.receiver.kafka`: Add a new `AWS_MSK_IAM_OAUTHBEARER` mechanism.
+    This mechanism use the AWS MSK IAM SASL Signer for Go https://github.com/aws/aws-msk-iam-sasl-signer-go.
+    https://github.com/open-telemetry/opentelemetry-collector-contrib/pull/32500
+
 ### Other changes
 
 - Change the stability of the `livedebugging` feature from "experimental" to "generally available". (@wildum)

docs/sources/_index.md

@@ -5,7 +5,7 @@ description: Grafana Alloy is a a vendor-neutral distribution of the OTel Collec
 weight: 350
 cascade:
   ALLOY_RELEASE: v1.6.0
-  OTEL_VERSION: v0.112.0
+  OTEL_VERSION: v0.116.0
   PROM_WIN_EXP_VERSION: v0.27.3
   SNMP_VERSION: v0.26.0
   FULL_PRODUCT_NAME: Grafana Alloy

docs/sources/_index.md.t

@@ -5,7 +5,7 @@ description: Grafana Alloy is a a vendor-neutral distribution of the OTel Collec
 weight: 350
 cascade:
   ALLOY_RELEASE: $ALLOY_VERSION
-  OTEL_VERSION: v0.112.0
+  OTEL_VERSION: v0.116.0
   PROM_WIN_EXP_VERSION: v0.27.3
   SNMP_VERSION: v0.26.0
   FULL_PRODUCT_NAME: Grafana Alloy

docs/sources/reference/components/otelcol/otelcol.exporter.loadbalancing.md

@@ -57,9 +57,10 @@ otelcol.exporter.loadbalancing "LABEL" {
 
 `otelcol.exporter.loadbalancing` supports the following arguments:
 
-Name          | Type     | Description                          | Default     | Required
---------------|----------|--------------------------------------|-------------|---------
-`routing_key` | `string` | Routing strategy for load balancing. | `"traceID"` | no
+Name          | Type       | Description                                                                        | Default     | Required
+--------------|------------|------------------------------------------------------------------------------------|-------------|---------
+`routing_key` | `string`   | Routing strategy for load balancing.                                               | `"traceID"` | no
+`timeout`     | `duration` | Time to wait before marking a request to the `otlp > protocol` exporter as failed. | `"0s"`      | no
 
 The `routing_key` attribute determines how to route signals across endpoints. Its value could be one of the following:
 - `"service"`: spans, logs, and metrics with the same `service.name` will be exported to the same backend.
@@ -72,6 +73,11 @@ for metric collection. Otherwise, metrics for the same services would be sent to
 
 The loadbalancer configures the exporter for the signal types supported by the `routing_key`.
 
+The `timeout` argument is similar to the top-level `queue` and `retry` [blocks][] for `otelcol.exporter.loadbalancing` itself.
+It helps to re-route data into a new set of healthy backends.
+This is especially useful for highly elastic environments like Kubernetes, 
+where the list of resolved endpoints changes frequently due to deployments and scaling events. 
+
 > **EXPERIMENTAL**: Metrics support in `otelcol.exporter.loadbalancing` is an [experimental][] feature.
 > Experimental features 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 feature.
@@ -81,25 +87,34 @@ The loadbalancer configures the exporter for the signal types supported by the `
 The following blocks are supported inside the definition of
 `otelcol.exporter.loadbalancing`:
 
-Hierarchy                            | Block             | Description                                                                | Required
--------------------------------------|-------------------|----------------------------------------------------------------------------|---------
-resolver                             | [resolver][]      | Configures discovering the endpoints to export to.                         | yes
-resolver > static                    | [static][]        | Static list of endpoints to export to.                                     | no
-resolver > dns                       | [dns][]           | DNS-sourced list of endpoints to export to.                                | no
-resolver > kubernetes                | [kubernetes][]    | Kubernetes-sourced list of endpoints to export to.                         | no
-resolver > aws_cloud_map             | [aws_cloud_map][] | AWS CloudMap-sourced list of endpoints to export to.                       | no
-protocol                             | [protocol][]      | Protocol settings. Only OTLP is supported at the moment.                   | no
-protocol > otlp                      | [otlp][]          | Configures an OTLP exporter.                                               | no
-protocol > otlp > client             | [client][]        | Configures the exporter gRPC client.                                       | no
-protocol > otlp > client > tls       | [tls][]           | Configures TLS for the gRPC client.                                        | no
-protocol > otlp > client > keepalive | [keepalive][]     | Configures keepalive settings for the gRPC client.                         | no
-protocol > otlp > queue              | [queue][]         | Configures batching of data before sending.                                | no
-protocol > otlp > retry              | [retry][]         | Configures retry mechanism for failed requests.                            | no
-debug_metrics | [debug_metrics][] | Configures the metrics that this component generates to monitor its state. | no
+Hierarchy                            | Block             | Description                                                                       | Required
+-------------------------------------|-------------------|-----------------------------------------------------------------------------------|---------
+resolver                             | [resolver][]      | Configures discovering the endpoints to export to.                                | yes
+resolver > static                    | [static][]        | Static list of endpoints to export to.                                            | no
+resolver > dns                       | [dns][]           | DNS-sourced list of endpoints to export to.                                       | no
+resolver > kubernetes                | [kubernetes][]    | Kubernetes-sourced list of endpoints to export to.                                | no
+resolver > aws_cloud_map             | [aws_cloud_map][] | AWS CloudMap-sourced list of endpoints to export to.                              | no
+protocol                             | [protocol][]      | Protocol settings. Only OTLP is supported at the moment.                          | no
+protocol > otlp                      | [otlp][]          | Configures an OTLP exporter.                                                      | no
+protocol > otlp > client             | [client][]        | Configures the exporter gRPC client.                                              | no
+protocol > otlp > client > tls       | [tls][]           | Configures TLS for the gRPC client.                                               | no
+protocol > otlp > client > keepalive | [keepalive][]     | Configures keepalive settings for the gRPC client.                                | no
+protocol > otlp > queue              | [queue][]         | Configures batching of data before sending.                                       | no
+protocol > otlp > retry              | [retry][]         | Configures retry mechanism for failed requests.                                   | no
+queue                                | [queue][]         | Configures batching of data before sending to the `otlp > protocol` exporter.     | no
+retry                                | [retry][]         | Configures retry mechanism for failed requests to the `otlp > protocol` exporter. | no
+debug_metrics                        | [debug_metrics][] | Configures the metrics that this component generates to monitor its state.        | no
 
 The `>` symbol indicates deeper levels of nesting. For example, `resolver > static`
 refers to a `static` block defined inside a `resolver` block.
 
+There are two types of [queue][] and [retry][] blocks:
+* The ones under `protocol > otlp`. This is useful for temporary problems with a specific backend, like transient network issues.
+* The ones top-level ones for `otelcol.exporter.loadbalancing` itself. 
+  Those configuration options provide capability to re-route data into a new set of healthy backends.
+  This are useful for highly elastic environments like Kubernetes, 
+  where the list of resolved endpoints changes frequently due to deployments and scaling events. 
+
 [resolver]: #resolver-block
 [static]: #static-block
 [dns]: #dns-block
@@ -154,11 +169,12 @@ The `kubernetes` resolver has a much faster response time than the `dns` resolve
 
 The following arguments are supported:
 
-Name      | Type           | Description                                                 | Default  | Required
-----------|----------------|-------------------------------------------------------------|----------|---------
-`service` | `string`       | Kubernetes service to resolve.                              |          | yes
-`ports`   | `list(number)` | Ports to use with the IP addresses resolved from `service`. | `[4317]` | no
-`timeout` | `duration`     | Resolver timeout.                                           | `"1s"`   | no
+Name               | Type           | Description                                                 | Default  | Required
+-------------------|----------------|-------------------------------------------------------------|----------|---------
+`service`          | `string`       | Kubernetes service to resolve.                              |          | yes
+`ports`            | `list(number)` | Ports to use with the IP addresses resolved from `service`. | `[4317]` | no
+`timeout`          | `duration`     | Resolver timeout.                                           | `"1s"`   | no
+`return_hostnames` | `bool`         | Return hostnames instead of IPs.                            | `false`  | no
 
 If no namespace is specified inside `service`, an attempt will be made to infer the namespace for this {{< param "PRODUCT_NAME" >}}.
 If this fails, the `default` namespace will be used.
@@ -168,6 +184,10 @@ Each of the ports listed in `ports` will be used with each of the IPs resolved f
 The "get", "list", and "watch" [roles](https://kubernetes.io/docs/reference/access-authn-authz/rbac/#role-example)
 must be granted in Kubernetes for the resolver to work.
 
+`return_hostnames` is useful in certain situations like using Istio in sidecar mode. 
+To use this feature, the `service` argument must be a headless `Service`, pointing at a `StatefulSet`.
+Also, the `service` argument must be what is specified under `.spec.serviceName` in the `StatefulSet`.
+
 ### aws_cloud_map block
 
 The `aws_cloud_map` block allows users to use `otelcol.exporter.loadbalancing` when using ECS over EKS in an AWS infrastructure.