[obi] - add context propagation (#237)

* add context propagation

* update changelog

* enable context propagation in CM

Author: NimrodAvni78

charts/opentelemetry-ebpf-instrumentation/CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## OpenTelemetry eBPF Instrumentation
 
+### v0.1.2 / 2025-07-13
+- [Feat] Add context propagation value in `values.yaml` ([port from beyla](https://github.com/grafana/beyla/commit/37749b58ef616bbb304216ee5407ba95bae9c6fb))
+- [Feat] Change default values to add redis db cache, k8s cache and mysql large buffers
+- [Feat] Change default of attributes.kubernetes.enabled to true
+
 ### v0.1.1 / 2025-06-17
 - [Feat] Use new `otel/opentelemetry-ebpf-k8s-cache` image instead of beyla one
 - [Fix] rename `otel-ebpf-k8s-cache` to `opentelemetry-ebpf-instrumentation-k8s-cache`

charts/opentelemetry-ebpf-instrumentation/CODEOWNERS

@@ -0,0 +1,15 @@
+
+#####################################################
+#
+# List of approvers for OpenTelemetry eBPF Instrumentation Helm
+#
+#####################################################
+#
+# Learn about membership in OpenTelemetry community:
+#  https://github.com/open-telemetry/community/blob/main/community-membership.md
+#
+#
+# Learn about CODEOWNERS file format:
+#  https://help.github.com/en/articles/about-code-owners
+#
+*  @coralogix/anemia

charts/opentelemetry-ebpf-instrumentation/Chart.yaml

@@ -1,7 +1,7 @@
 ---
 apiVersion: v2
 name: opentelemetry-ebpf-instrumentation
-version: 0.1.1
+version: 0.1.2
 description: OpenTelemetry eBPF instrumentation Helm chart for Kubernetes
 type: application
 home: https://opentelemetry.io/
@@ -11,4 +11,4 @@ sources:
 icon: https://opentelemetry.io/img/logos/opentelemetry-logo-nav.png
 maintainers:
   - name: nimrodavni78
-appVersion: 0.1.1
+appVersion: 0.1.2

charts/opentelemetry-ebpf-instrumentation/templates/configmap.yaml

@@ -18,6 +18,10 @@ metadata:
   {{- end }}
 data:
   ebpf-instrument-config.yml: |
+    {{- if .Values.contextPropagation.enabled }}
+    ebpf:
+      context_propagation: "all"
+    {{- end }}
     {{- if eq .Values.preset "network" }}
     {{- if not .Values.config.data.network }}
     network:

charts/opentelemetry-ebpf-instrumentation/templates/daemon-set.yaml

@@ -35,7 +35,7 @@ spec:
       {{- if eq .Values.preset "application" }}
       hostPID: true
       {{- end }}
-      {{- if or (eq .Values.preset "network") .Values.config.data.network }}
+      {{- if or (eq .Values.preset "network") .Values.config.data.network .Values.contextPropagation.enabled }}
       hostNetwork: true
       dnsPolicy: {{ .Values.dnsPolicy }}
       {{- end }}
@@ -66,6 +66,9 @@ spec:
                 - CHECKPOINT_RESTORE
                 - DAC_READ_SEARCH
                 - PERFMON
+              {{- if .Values.contextPropagation.enabled }}
+                - NET_ADMIN
+              {{- end }}
               {{- with .Values.extraCapabilities }}
                 {{- toYaml . | nindent 16 }}
               {{- end }}
@@ -116,6 +119,10 @@ spec:
           volumeMounts:
             - mountPath: /etc/ebpf-instrument/config
               name: ebpf-instrument-config
+          {{- if .Values.contextPropagation.enabled }}
+            - mountPath: /sys/fs/cgroup
+              name: cgroup
+          {{- end }}
           {{- with .Values.volumeMounts }}
             {{- toYaml . | nindent 12 }}
           {{- end }}
@@ -143,6 +150,11 @@ spec:
         - name: ebpf-instrument-config
           configMap:
             name: {{ default (include "obi.fullname" .) .Values.config.name }}
+      {{- if .Values.contextPropagation.enabled }}
+        - name: cgroup
+          hostPath:
+            path: /sys/fs/cgroup
+      {{- end }}
       {{- with .Values.volumes }}
         {{- toYaml . | nindent 8 }}
       {{- end }}

charts/opentelemetry-ebpf-instrumentation/values.yaml

@@ -61,10 +61,15 @@ podSecurityContext: {}
 # -- If set to false, deploys an unprivileged / less privileged setup.
 privileged: true
 
+# -- Enables context propagation support.
+contextPropagation:
+  enabled: true
+
 # -- Extra capabilities for unprivileged / less privileged setup.
 extraCapabilities: []
   # - SYS_RESOURCE       # <-- pre 5.11 only. Allows Opentelemetry eBPF Instrumentation to increase the amount of locked memory.
 # - SYS_ADMIN          # <-- Required for Go application trace context propagation, or if kernel.perf_event_paranoid >= 3 on Debian distributions.
+# - NET_ADMIN          # <-- Required to inject HTTP and TCP context propagation information. This will be added when contextPropagation is enabled.
 
 # -- Security context for privileged setup.
 securityContext:
@@ -201,13 +206,17 @@ config:
     #     cloud_zone: prod-eu-west-0
     #     cloud_instance_id: 123456
     #     cloud_api_key:
+    buffer_sizes:
+      mysql: 4096
+    redis_db_cache:
+      enable: true
     otel_traces_export:
       endpoint: "http://${HOST_IP}:4317"
     otel_metrics_export:
       endpoint: "http://${HOST_IP}:4318"
     attributes:
       kubernetes:
-        enable: false
+        enable: true
     filter:
       network:
         k8s_dst_owner_name:
@@ -271,7 +280,7 @@ serviceMonitor:
 # -- Options to deploy the Kubernetes metadata cache as a separate service
 k8sCache:
   # -- Number of replicas for the Kubernetes metadata cache service. 0 disables the service.
-  replicas: 0
+  replicas: 2
   # -- Enables the profile port for the Opentelemetry eBPF Instrumentation cache
   profilePort: 0
   ## Env variables that will override configmap values