Merge branch 'main' into TA-update-configs-to-enable-mtls

Author: ItielOlenick

.chloggen/3090-enable-multiinstrumentation-by-default.yaml

@@ -2,6 +2,115 @@
 
 <!-- next version -->
 
+## 0.110.0
+
+### 🛑 Breaking changes 🛑
+
+- `auto-instrumentation`: Enable multi instrumentation by default. (#3090)
+
+  Starting with this release, the OpenTelemetry Operator now enables multi-instrumentation by default.
+  This enhancement allows instrumentation of multiple containers in a pod with language-specific configurations.
+
+  Key Changes:
+    - Single Instrumentation (Default Behavior): If no container names are specified using the
+      `instrumentation.opentelemetry.io/container-names` annotation, instrumentation will be applied to the first container in
+      the pod spec by default. This only applies when single instrumentation injection is configured.
+    - Multi-Container Pods: In scenarios where different containers in a pod use distinct technologies, users must specify the
+      container(s) for instrumentation using language-specific annotations. Without this specification, the default behavior may
+      not work as expected for multi-container environments.
+  
+  Compatibility:
+    - Users already utilizing the `instrumentation.opentelemetry.io/container-names` annotation do not need to take any action.
+      Their existing setup will continue to function as before.
+    - Important: Users who attempt to configure both `instrumentation.opentelemetry.io/container-names` and language-specific annotations
+      (for multi-instrumentation) simultaneously will encounter an error, as this configuration is not supported.
+  
+- `collector`: Remove ComponentUseLocalHostAsDefaultHost collector feature gate. (#3306)
+
+  This change may break setups where receiver endpoints are not explicitly configured to listen on e.g. 0.0.0.0.
+  Change \#3333 attempts to address this issue for a known set of components.
+  The operator performs the adjustment for the following receivers:
+  - otlp
+  - skywalking
+  - jaeger
+  - loki
+  - opencensus
+  - zipkin
+  - tcplog
+  - udplog
+  - fluentforward
+  - statsd
+  - awsxray/UDP
+  - carbon
+  - collectd
+  - sapm
+  - signalfx
+  - splunk_hec
+  - wavefront
+  
+
+### 💡 Enhancements 💡
+
+- `auto-instrumentation, collector`: Add a must gather utility to help troubleshoot (#3149)
+  
+  The new utility is available as part of a new container image.
+  
+  To use the image in a running OpenShift cluster, you need to run the following command:
+  
+  ```sh
+  oc adm must-gather --image=ghcr.io/open-telemetry/opentelemetry-operator/must-gather -- /usr/bin/must-gather --operator-namespace opentelemetry-operator-system
+  ```
+  
+  See the [README](https://github.com/open-telemetry/opentelemetry-operator/blob/main/cmd/gather/README.md) for more details.
+  
+- `collector`: set default address for all parsed receivers (#3126)
+
+  This feature is enabled by default. It can be disabled by specifying
+  `--feature-gates=-operator.collector.default.config`.
+- `operator`: Use 0.0.0.0 as otlp receiver default address (#3126)
+- `collector`: Add flag to disable components when operator runs on FIPS enabled cluster. (#3315)
+  Flag `--fips-disabled-components=receiver.otlp,exporter.otlp,processor.batch,extension.oidc` can be used to disable
+  components when operator runs on FIPS enabled cluster. The operator uses `/proc/sys/crypto/fips_enabled` to check
+  if FIPS is enabled.
+  
+- `collector`: Improves healthcheck parsing capabilities, allowing for future extensions to configure a healthcheck other than the v1 healthcheck extension. (#3184)
+- `auto-instrumentation`: Add support for k8s labels such as app.kubernetes.io/name for resource attributes (#3112)
+  
+  You can opt-in as follows:
+  ```yaml
+  apiVersion: opentelemetry.io/v1alpha1
+  kind: Instrumentation
+  metadata:
+    name: my-instrumentation
+  spec:
+    defaults:
+      useLabelsForResourceAttributes: true
+  ```
+  The following labels are supported:
+    - `app.kubernetes.io/name` becomes `service.name`
+    - `app.kubernetes.io/version` becomes `service.version`
+    - `app.kubernetes.io/part-of` becomes `service.namespace`
+    - `app.kubernetes.io/instance` becomes `service.instance.id`
+  
+
+### 🧰 Bug fixes 🧰
+
+- `auto-instrumentation`: Fix ApacheHttpd, Nginx and SDK injectors to honour their container-names annotations. (#3313)
+  
+  This is a breaking change if anyone is accidentally using the enablement flag with container names for these 3 injectors.
+
+### Components
+
+* [OpenTelemetry Collector - v0.110.0](https://github.com/open-telemetry/opentelemetry-collector/releases/tag/v0.110.0)
+* [OpenTelemetry Contrib - v0.110.0](https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.110.0)
+* [Java auto-instrumentation - v1.33.5](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/tag/v1.33.5)
+* [.NET auto-instrumentation - v1.2.0](https://github.com/open-telemetry/opentelemetry-dotnet-instrumentation/releases/tag/v1.2.0)
+* [Node.JS - v0.52.1](https://github.com/open-telemetry/opentelemetry-js/releases/tag/experimental%2Fv0.52.1)
+* [Python - v0.48b0](https://github.com/open-telemetry/opentelemetry-python-contrib/releases/tag/v0.48b0)
+* [Go - v0.14.0-alpha](https://github.com/open-telemetry/opentelemetry-go-instrumentation/releases/tag/v0.14.0-alpha)
+* [ApacheHTTPD - 1.0.4](https://github.com/open-telemetry/opentelemetry-cpp-contrib/releases/tag/webserver%2Fv1.0.4)
+* [Nginx - 1.0.4](https://github.com/open-telemetry/opentelemetry-cpp-contrib/releases/tag/webserver%2Fv1.0.4)
+
 ## 0.109.0
 
 ### 🚩 Deprecations 🚩

.chloggen/3149-add-must-gather.yaml

@@ -813,6 +813,7 @@ The OpenTelemetry Operator _might_ work on versions outside of the given range,
 
 | OpenTelemetry Operator | Kubernetes     | Cert-Manager | Prometheus-Operator |
 |------------------------|----------------| ------------ |---------------------|
+| v0.110.0               | v1.23 to v1.31 | v1           | v0.76.0             |
 | v0.109.0               | v1.23 to v1.31 | v1           | v0.76.0             |
 | v0.108.0               | v1.23 to v1.31 | v1           | v0.76.0             |
 | v0.107.0               | v1.23 to v1.30 | v1           | v0.75.0             |
@@ -836,7 +837,6 @@ The OpenTelemetry Operator _might_ work on versions outside of the given range,
 | v0.89.0                | v1.23 to v1.28 | v1           | v0.69.1             |
 | v0.88.0                | v1.23 to v1.28 | v1           | v0.68.0             |
 | v0.87.0                | v1.23 to v1.28 | v1           | v0.68.0             |
-| v0.86.0                | v1.23 to v1.28 | v1           | v0.68.0             |
 
 ## Contributing and Developing
 

.chloggen/container-names.yaml

@@ -44,9 +44,9 @@ The operator should be released within a week after the [OpenTelemetry collector
 
 | Version  | Release manager |
 |----------|-----------------|
-| v0.110.0 | @swiatekm       |
 | v0.111.0 | @frzifus        |
 | v0.112.0 | @yuriolisa      |
 | v0.113.0 | @pavolloffay    |
 | v0.114.0 | @TylerHelmuth   |
-| v0.115.0 | @jaronoff97     |
+| v0.115.0 | @jaronoff97     |
+| v0.116.0 | @swiatekm       |

.chloggen/fips.yaml

@@ -30,6 +30,7 @@ import (
 	"github.com/open-telemetry/opentelemetry-operator/internal/fips"
 	ta "github.com/open-telemetry/opentelemetry-operator/internal/manifests/targetallocator/adapters"
 	"github.com/open-telemetry/opentelemetry-operator/internal/rbac"
+	"github.com/open-telemetry/opentelemetry-operator/pkg/featuregate"
 )
 
 var (
@@ -78,8 +79,6 @@ func (c CollectorWebhook) Default(_ context.Context, obj runtime.Object) error {
 		otelcol.Spec.TargetAllocator.Replicas = &one
 	}
 
-	ComponentUseLocalHostAsDefaultHost(otelcol)
-
 	if otelcol.Spec.Autoscaler != nil && otelcol.Spec.Autoscaler.MaxReplicas != nil {
 		if otelcol.Spec.Autoscaler.MinReplicas == nil {
 			otelcol.Spec.Autoscaler.MinReplicas = otelcol.Spec.Replicas
@@ -102,7 +101,10 @@ func (c CollectorWebhook) Default(_ context.Context, obj runtime.Object) error {
 	if len(otelcol.Spec.ManagementState) == 0 {
 		otelcol.Spec.ManagementState = ManagementStateManaged
 	}
-	return nil
+	if !featuregate.EnableConfigDefaulting.IsEnabled() {
+		return nil
+	}
+	return otelcol.Spec.Config.ApplyDefaults(c.logger)
 }
 
 func (c CollectorWebhook) ValidateCreate(ctx context.Context, obj runtime.Object) (admission.Warnings, error) {
@@ -453,23 +455,3 @@ func SetupCollectorWebhook(mgr ctrl.Manager, cfg config.Config, reviewer *rbac.R
 		WithDefaulter(cvw).
 		Complete()
 }
-
-// ComponentUseLocalHostAsDefaultHost enables component.UseLocalHostAsDefaultHost
-// featuregate on the given collector instance.
-// NOTE: For more details, visit:
-// https://github.com/open-telemetry/opentelemetry-collector/issues/8510
-func ComponentUseLocalHostAsDefaultHost(otelcol *OpenTelemetryCollector) {
-	const (
-		baseFlag = "feature-gates"
-		fgFlag   = "component.UseLocalHostAsDefaultHost"
-	)
-	if otelcol.Spec.Args == nil {
-		otelcol.Spec.Args = make(map[string]string)
-	}
-	args, ok := otelcol.Spec.Args[baseFlag]
-	if !ok || len(args) == 0 {
-		otelcol.Spec.Args[baseFlag] = "-" + fgFlag
-	} else if !strings.Contains(otelcol.Spec.Args[baseFlag], fgFlag) {
-		otelcol.Spec.Args[baseFlag] += ",-" + fgFlag
-	}
-}