Helm 102 - Configmap and env value for external secret

deployments/helm/.helmignore

@@ -21,3 +21,4 @@
 .idea/
 *.tmproj
 .vscode/
+.github

deployments/helm/templates/_helpers.tpl

@@ -23,6 +23,18 @@ If release name contains chart name it will be used as a full name.
 {{- end }}
 {{- end }}
 
+{{/*
+Allow the release namespace to be overridden for multi-namespace deployments in combined charts
+*/}}
+{{- define "beyla.namespace" -}}
+{{- if .Values.namespaceOverride }}
+{{- .Values.namespaceOverride }}
+{{- else }}
+{{- .Release.Namespace }}
+{{- end }}
+{{- end }}
+
+
 {{/*
 Create chart name and version as used by the chart label.
 */}}

deployments/helm/templates/cluster-role-binding.yaml

@@ -17,4 +17,4 @@ roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole
   name: {{ include "beyla.fullname" . }}
-{{- end }}
+{{- end }}

deployments/helm/templates/cluster-role.yaml

@@ -16,4 +16,4 @@ rules:
   - apiGroups: [""]
     resources: ["pods"]
     verbs: ["list", "watch"]
-{{- end }}
+{{- end }}

deployments/helm/templates/configmap.yaml

@@ -0,0 +1,16 @@
+{{- if and .Values.createConfigmap (not .Values.useExistingConfigMap) }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "beyla.fullname" . }}
+  namespace: {{ include "beyla.namespace" . }}
+  labels:
+    {{- include "beyla.labels" . | nindent 4 }}
+  {{- with .Values.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+data:
+  beyla-config.yml: |
+  {{- toYaml .Values.configmapData | nindent 4}}
+{{- end }}

deployments/helm/templates/daemon-set.yml

@@ -2,6 +2,7 @@ apiVersion: apps/v1
 kind: DaemonSet
 metadata:
   name: {{ include "beyla.fullname" . }}
+  namespace: {{ include "beyla.namespace" .}}
   labels:
     {{- include "beyla.labels" . | nindent 2 }}
   {{- with .Values.annotations }}
@@ -24,7 +25,11 @@ spec:
       volumes:
         - name: beyla-config
           configMap:
-            name: beyla-config
+            {{- if .Values.useExistingConfigMap }}
+            name: {{ .Values.useExistingConfigMap }}
+            {{- else }}
+            name: {{ include "beyla.fullname" . }}
+            {{- end }}
       containers:
         - name: beyla
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
@@ -39,11 +44,14 @@ spec:
               value: "/config/beyla-config.yml"
             - name: BEYLA_PRINT_TRACES
               value: "true"
-            - name: BEYLA_OPEN_PORT
-              value: "8443"
-            - name: OTEL_EXPORTER_OTLP_ENDPOINT
-              value: "http://grafana-agent:4318"
-            - name: BEYLA_LOG_LEVEL
-              value: "DEBUG"
             - name: OTEL_RESOURCE_ATTRIBUTES
-              value: "deployment.environment=production"
+              value: "deployment.environment=production"
+          {{- range $key, $value := .Values.env }}
+            - name: {{ $key }}
+              value: "{{ $value }}"
+          {{- end }}
+          {{- range $key, $value := .Values.envValueFrom }}
+            - name: {{ $key | quote }}
+              valueFrom:
+                {{- tpl (toYaml $value) $ | nindent 10 }}
+          {{- end }}

deployments/helm/templates/serviceaccount.yaml

@@ -3,6 +3,7 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   name: {{ include "beyla.serviceAccountName" . }}
+  namespace: {{ include "beyla.namespace" .}}
   labels:
     {{- include "beyla.labels" . | nindent 4 }}
     {{- with .Values.serviceAccount.labels }}

deployments/helm/values.yaml

@@ -5,8 +5,11 @@ image:
   tag: "main"
 
 imagePullSecrets: []
+
 nameOverride: ""
 fullnameOverride: ""
+## Override the deployment namespace
+namespaceOverride: ""
 
 ## DaemonSet annotations
 # annotations: {}
@@ -117,3 +120,40 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+
+createConfigmap: true
+## or use an existing configmap
+# useExistingConfigMap: name-of-some-configmap
+
+## More configuration options available at https://grafana.com/docs/beyla/latest/configure/options/
+configmapData:
+  open_port: 8443
+  routes:
+    unmatched: heuristic
+  log_level: debug
+  otel_traces_export:
+    endpoint: http://grafana-agent:4318
+ ## or alternatively use
+  # grafana:
+  #   otlp:
+  #     cloud_zone: prod-eu-west-0
+  #     cloud_instance_id: 123456  
+  #     cloud_api_key:  
+  discovery:
+    services:
+      - k8s_namespace: default
+  attributes:
+    kubernetes:
+      enable: true
+
+## Env variables that will override configmap values
+## For example:
+##   BEYLA_BPF_WAKEUP_LEN: 100
+env: {}
+
+envValueFrom: {}
+  #  ENV_NAME:
+  #    secretKeyRef:
+  #      name: secret-name
+  #      key: value_key