Add tested Helm chart and configuration files for OpenTelemetry demo services

6 files changed, 263 insertions, 0 deletions

diff --git a/astroshop-helm/kafka/.helmignore b/astroshop-helm/kafka/.helmignore
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+++ b/astroshop-helm/kafka/.helmignore
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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/
diff --git a/astroshop-helm/kafka/Chart.yaml b/astroshop-helm/kafka/Chart.yaml
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+++ b/astroshop-helm/kafka/Chart.yaml
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+apiVersion: v2
+name: kafka
+description: A Helm chart for Kubernetes
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+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: 0.1.0
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "2.1.3"
+namespace: opentelemetry-demo
\ No newline at end of file
diff --git a/astroshop-helm/kafka/templates/_helpers.tpl b/astroshop-helm/kafka/templates/_helpers.tpl
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+++ b/astroshop-helm/kafka/templates/_helpers.tpl
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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "kafka.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "kafka.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "kafka.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "kafka.labels" -}}
+helm.sh/chart: {{ include "kafka.chart" . }}
+{{ include "kafka.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "kafka.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "kafka.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "kafka.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "kafka.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}
diff --git a/astroshop-helm/kafka/templates/deployment.yaml b/astroshop-helm/kafka/templates/deployment.yaml
new file mode 100644
index 0000000..8275b42
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+++ b/astroshop-helm/kafka/templates/deployment.yaml
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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  namespace: {{ .Values.namespace }}
+  name: {{ include "kafka.fullname" . }}
+  labels:
+    app.kubernetes.io/component: kafka
+    app.kubernetes.io/part-of: opentelemetry-demo
+    opentelemetry.io/name: {{ .Values.namespace }}-{{ include "kafka.fullname" . }}
+  {{- include "kafka.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.opentelemetryDemoKafka.replicas }}
+  revisionHistoryLimit: {{ .Values.opentelemetryDemoKafka.revisionHistoryLimit }}
+  selector:
+    matchLabels:
+      opentelemetry.io/name: {{ .Values.namespace }}-{{ include "kafka.fullname" . }}
+    {{- include "kafka.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/component: kafka
+        app.kubernetes.io/instance: opentelemetry-demo
+        app.kubernetes.io/name: {{ .Values.namespace }}-{{ include "kafka.fullname" . }}
+        opentelemetry.io/name: {{ .Values.namespace }}-{{ include "kafka.fullname" . }}
+      {{- include "kafka.selectorLabels" . | nindent 8 }}
+    spec:
+      containers:
+      - env:
+        - name: OTEL_SERVICE_NAME
+          valueFrom:
+            fieldRef:
+              apiVersion: v1
+              fieldPath: metadata.labels['app.kubernetes.io/component']
+        - name: OTEL_COLLECTOR_NAME
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.otelCollectorName }}
+        - name: OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.otelExporterOtlpMetricsTemporalityPreference }}
+        - name: KAFKA_ADVERTISED_LISTENERS
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.kafkaAdvertisedListeners }}
+        - name: OTEL_EXPORTER_OTLP_ENDPOINT
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.otelExporterOtlpEndpoint }}
+        - name: KAFKA_HEAP_OPTS
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.kafkaHeapOpts }}
+        - name: OTEL_RESOURCE_ATTRIBUTES
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.otelResourceAttributes }}
+        - name: KUBERNETES_CLUSTER_DOMAIN
+          value: {{ quote .Values.kubernetesClusterDomain }}
+
+        # KRaft mode environment variables
+        - name: KAFKA_PROCESS_ROLES
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.processRoles }}
+        - name: KAFKA_NODE_ID
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.nodeId }}
+        - name: KAFKA_CONTROLLER_QUORUM_VOTERS
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.controllerQuorumVoters }}
+        - name: KAFKA_CONTROLLER_LISTENER_NAMES
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.controllerListenerNames }}
+        - name: KAFKA_LISTENER_SECURITY_PROTOCOL_MAP
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.listenerSecurityProtocolMap }}
+        - name: KAFKA_LISTENERS
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.listeners }}
+        - name: KAFKA_INTER_BROKER_LISTENER_NAME
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.interBrokerListenerName }}
+        - name: KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.offsetsTopicReplicationFactor }}
+        - name: KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.transactionStateLogReplicationFactor }}
+        - name: KAFKA_TRANSACTION_STATE_LOG_MIN_ISR
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.transactionStateLogMinIsr }}
+        - name: KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.groupInitialRebalanceDelayMs }}
+        - name: KAFKA_LOG_DIRS
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.logDirs }}
+        - name: CLUSTER_ID
+          value: {{ quote .Values.opentelemetryDemoKafka.kafka.env.clusterId }}
+
+        image: {{ .Values.opentelemetryDemoKafka.kafka.image.repository }}:{{ .Values.opentelemetryDemoKafka.kafka.image.tag | default .Chart.AppVersion }}
+        imagePullPolicy: {{ .Values.opentelemetryDemoKafka.kafka.imagePullPolicy }}
+        name: kafka
+        ports:
+        - containerPort: 9092
+          name: plaintext
+        - containerPort: 9093
+          name: controller
+        resources: {{- toYaml .Values.opentelemetryDemoKafka.kafka.resources | nindent 10 }}
+        securityContext: {{- toYaml .Values.opentelemetryDemoKafka.kafka.containerSecurityContext | nindent 10 }}
+      serviceAccountName: {{ .Values.serviceAccount.name }}
\ No newline at end of file
diff --git a/astroshop-helm/kafka/templates/service.yaml b/astroshop-helm/kafka/templates/service.yaml
new file mode 100644
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+++ b/astroshop-helm/kafka/templates/service.yaml
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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Values.namespace }}-{{ include "kafka.fullname" . }}
+  labels:
+    app.kubernetes.io/component: kafka
+    app.kubernetes.io/part-of: opentelemetry-demo
+    opentelemetry.io/name: {{ .Values.namespace }}-{{ include "kafka.fullname" . }}
+  {{- include "kafka.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.opentelemetryDemoKafka.type }}
+  selector:
+    opentelemetry.io/name: {{ .Values.namespace }}-{{ include "kafka.fullname" . }}
+    {{- include "kafka.selectorLabels" . | nindent 4 }}
+  ports:
+  {{- .Values.opentelemetryDemoKafka.ports | toYaml | nindent 2 }}
diff --git a/astroshop-helm/kafka/values.yaml b/astroshop-helm/kafka/values.yaml
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+++ b/astroshop-helm/kafka/values.yaml
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+namespace: opentelemetry-demo
+kubernetesClusterDomain: cluster.local
+
+serviceAccount:
+  name: opentelemetry-demo
+  version: ">=1.32.0-0"
+  partOf: opentelemetry-demo
+
+opentelemetryDemoKafka:
+  kafka:
+    containerSecurityContext:
+      runAsGroup: 1000
+      runAsNonRoot: true
+      runAsUser: 1000
+    env:
+      kafkaAdvertisedListeners: PLAINTEXT://opentelemetry-demo-kafka:9092
+      kafkaHeapOpts: -Xmx400M -Xms400M
+      otelCollectorName: opentelemetry-demo-otelcol
+      otelExporterOtlpEndpoint: http://$(OTEL_COLLECTOR_NAME):4318
+      otelExporterOtlpMetricsTemporalityPreference: cumulative
+      otelResourceAttributes: service.name=$(OTEL_SERVICE_NAME),service.namespace=opentelemetry-demo,service.version=2.1.3
+
+      # KRaft mode configurations
+      processRoles: broker,controller
+      nodeId: 1
+      controllerQuorumVoters: 1@opentelemetry-demo-kafka:9093
+      controllerListenerNames: CONTROLLER
+      listenerSecurityProtocolMap: CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT
+      listeners: PLAINTEXT://:9092,CONTROLLER://:9093
+      interBrokerListenerName: PLAINTEXT
+      offsetsTopicReplicationFactor: 1
+      transactionStateLogReplicationFactor: 1
+      transactionStateLogMinIsr: 1
+      groupInitialRebalanceDelayMs: 0
+      logDirs: /var/lib/kafka/data
+      clusterId: ckjPoprWQzOf0-FuNkGfFQ
+    image:
+      repository: ghcr.io/open-telemetry/demo
+      tag: 2.1.3-kafka
+    imagePullPolicy: IfNotPresent
+    resources:
+      limits:
+        memory: 600Mi
+  ports:
+  - name: plaintext
+    port: 9092
+    targetPort: 9092
+  - name: controller
+    port: 9093
+    targetPort: 9093
+  replicas: 1
+  revisionHistoryLimit: 10
+  type: ClusterIP