[nr-ebpf-agent] Add helm chart field for OTLP endpoint (#1485)

Enables configuring where data gathered by the eBPF agent will be sent.

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#### Is this a new chart

#### What this PR does / why we need it:

#### Which issue this PR fixes
*(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)`
format, will close that issue when PR gets merged)*
  - fixes #

#### Special notes for your reviewer:

#### Checklist
[Place an '[x]' (no spaces) in all applicable fields. Please remove
unrelated fields.]
- [X] Chart Version bumped
- [X] Variables are documented in the README.md
- [X] Title of the PR starts with chart name (e.g. `[mychartname]`)

---------

Signed-off-by: Benjamin Kilimnik <[email protected]>
Co-authored-by: Kartik Pattaswamy <[email protected]>

charts/nr-ebpf-agent/Chart.yaml

@@ -13,7 +13,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.1.4
+version: 0.1.5
 dependencies:
   - name: common-library
     version: 1.1.1

charts/nr-ebpf-agent/README.md

@@ -91,7 +91,7 @@ Options that can be defined globally include `affinity`, `nodeSelector`, `tolera
 | labels | object | `{}` | Additional labels for chart objects |
 | licenseKey | string | `""` | The license key to use. Can be configured with `global.licenseKey` |
 | nodeSelector | object | `{}` | Sets all pods' node selector. Can be configured also with `global.nodeSelector` |
-| nrStaging | bool | `false` | Endpoint to export data to. If enabled, sends data to the staging backend. Requires a valid staging license key. Can also be configured with global.nrStaging |
+| nrStaging | bool | `false` | Endpoint to export data to via the otel collector. NR prod (otlp.nr-data.net:4317) by default. Staging (staging-otlp.nr-data.net:4317) otherwise. Requires a valid staging license key. Can also be configured with global.nrStaging. |
 | otelCollector.collector.serviceAccount.annotations | object | `{}` | Annotations for the OTel collector service account. |
 | otelCollector.image.pullPolicy | string | `"IfNotPresent"` | The pull policy is defaulted to IfNotPresent, which skips pulling an image if it already exists. If pullPolicy is defined without a specific value, it is set to Always. |
 | otelCollector.image.repository | string | `"us-west1-docker.pkg.dev/pl-dev-infra/nr-ebpf-agent-lp/nr-ebpf-otel-collector"` | OpenTelemetry collector image to be deployed. |
@@ -102,6 +102,7 @@ Options that can be defined globally include `affinity`, `nodeSelector`, `tolera
 | otelCollector.resources.requests.memory | string | `"200Mi"` | Min memory allocated to the container. |
 | podLabels | object | `{}` | Additional labels for chart pods |
 | protocols | object | `{"amqp":true,"cass":true,"dns":true,"http":true,"kafka":true,"mongodb":true,"mysql":true,"pgsql":true,"redis":true}` | The protocols (and data export scripts) to enable for tracing in the socket_tracer. |
+| proxy | string | `""` | Configures the agent to send all data through the proxy specified via the otel collector. |
 | stirlingSources | string | `"socket_tracer,tcp_stats"` | The source connectors (and data export scripts) to enable. Note that socket_tracer tracks http, mysql, redis, mongodb, amqp, cassandra, dns, and postgresql while tcp_stats tracks TCP metrics. |
 | tableStoreDataLimitMB | string | `"250"` | The primary lever to control RAM use of the eBPF agent. Specified in MiB. |
 | tolerations | list | `[]` | Sets all pods' tolerations to node taints. Can be configured also with `global.tolerations` |
@@ -116,4 +117,4 @@ If the `nr-ebpf-client` or `nr-ebpf-agent` container logs indicate that the scri
 
 * ramkrishankumarN
 * kpattaswamy
-* benkilimnik
+* benkilimnik

charts/nr-ebpf-agent/templates/otel-collector-daemonset.yaml

@@ -41,7 +41,9 @@ spec:
                 key: NR_LICENSE_KEY
                 name: nr-ebpf-agent-secrets
           - name: NR_OTLP_ENDPOINT
-            {{- if .Values.nrStaging }}
+            {{- if .Values.proxy }}
+            value: "{{- .Values.proxy }}"
+            {{- else if .Values.nrStaging }}
             value: "staging-otlp.nr-data.net:4317"
             {{- else }}
             value: "otlp.nr-data.net:4317"

charts/nr-ebpf-agent/values.yaml

@@ -2,8 +2,10 @@
 cluster: ""
 # -- The license key to use. Can be configured with `global.licenseKey`
 licenseKey: ""
-# -- Endpoint to export data to. If enabled, sends data to the staging backend. Requires a valid staging license key. Can also be configured with global.nrStaging
+# -- Endpoint to export data to via the otel collector. NR prod (otlp.nr-data.net:4317) by default. Staging (staging-otlp.nr-data.net:4317) otherwise. Requires a valid staging license key. Can also be configured with global.nrStaging.
 nrStaging: false
+# -- Configures the agent to send all data through the proxy specified via the otel collector.
+proxy: ""
 # -- The primary lever to control RAM use of the eBPF agent. Specified in MiB.
 tableStoreDataLimitMB: "250"
 # -- The source connectors (and data export scripts) to enable.