feat(chart): add otel configuration

Author: coffee-the-dev

charts/abstract-node/Chart.yaml

@@ -1,7 +1,7 @@
 apiVersion: v2
 name: abstract-node
 description: External node for syncing and serving blockchain data for Abstract
-version: 0.1.42
+version: 0.1.43
 type: application
 icon: https://abstract-assets.abs.xyz/icons/light.png
 keywords:

charts/abstract-node/templates/_helpers.tpl

@@ -61,6 +61,28 @@ Create the name of the service account to use
 {{- end }}
 {{- end }}
 
+{{/*
+Render OpenTelemetry environment variables for the external node container.
+*/}}
+{{- define "abstract-node.otelEnv" -}}
+{{- with .Values.otel }}
+{{- if .enabled }}
+- name: OPENTELEMETRY_LEVEL
+  value: {{ .level | quote }}
+{{- with .endpoint }}
+- name: OTLP_ENDPOINT
+  value: {{ . | quote }}
+{{- end }}
+{{- with .serviceName }}
+- name: SERVICE_NAME
+  value: {{ . | quote }}
+{{- end }}
+- name: EN_EXTENDED_RPC_TRACING
+  value: {{ .extendedRpcTracing | quote }}
+{{- end }}
+{{- end }}
+{{- end }}
+
 {{/*
 HA core StatefulSet / governing service name.
 */}}

charts/abstract-node/templates/deployment-api.yaml

@@ -182,6 +182,9 @@ spec:
             - name: EN_API_SEND_RAW_TX_SYNC_DEFAULT_TIMEOUT_MS
               value: {{ .Values.rpc.sendRawTxSyncDefaultTimeout | quote }}
             {{- end }}
+            {{- if .Values.otel.enabled }}
+{{- include "abstract-node.otelEnv" . | nindent 12 }}
+            {{- end }}
             {{- range $name, $value := .Values.node.extraEnv }}
             - name: {{ $name | quote }}
               value: {{ $value | quote }}

charts/abstract-node/templates/statefulset.yaml

@@ -215,6 +215,9 @@ spec:
             - name: EN_API_SEND_RAW_TX_SYNC_DEFAULT_TIMEOUT_MS
               value: {{ .Values.rpc.sendRawTxSyncDefaultTimeout | quote }}
             {{- end }}
+            {{- if .Values.otel.enabled }}
+{{- include "abstract-node.otelEnv" . | nindent 12 }}
+            {{- end }}
             {{- range $name, $value := .Values.node.extraEnv }}
             - name: {{ $name | quote }}
               value: {{ $value | quote }}

charts/abstract-node/values.yaml

@@ -289,6 +289,15 @@ metrics:
     ##
     rules: []
 
+otel:
+  ## Configure OpenTelemetry environment variables for the external node container.
+  ##
+  enabled: false
+  level: info
+  endpoint: ""
+  serviceName: ""
+  extendedRpcTracing: false
+
 ## Configure resource requests and limits.
 ## http://kubernetes.io/docs/user-guide/compute-resources/
 ##