add OTEL trace env for helm chart

[KubeKyrie]

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• I have updated the documentation according to documentation
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[clusterpedia-bot]

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[KubeKyrie]

There is test results:

1. donnot enable otel trace:

helm install clusterpedia -n test --create-namespace ./charts/clusterpedia/ --set persistenceMatchNode=None --set postgresql.primary.persistence.enabled=false --debug

2. enable otel trace:
   helm install clusterpedia -n pedia-system --create-namespace ./charts/clusterpedia/ --set telemetry.tracing.enabled=true --set persistenceMatchNode=None --set postgresql.primary.persistence.enabled=false --debug

those otel trace env are added for deploy clusterpedia-apiserver

kind: Deployment
metadata:
  annotations:
    deployment.kubernetes.io/revision: "2"
    meta.helm.sh/release-name: clusterpedia
    meta.helm.sh/release-namespace: pedia-system
  creationTimestamp: "2023-12-05T11:51:28Z"
  generation: 2
  labels:
    app: clusterpedia-apiserver
    app.kubernetes.io/instance: clusterpedia
    app.kubernetes.io/managed-by: Helm
    app.kubernetes.io/name: clusterpedia
    app.kubernetes.io/version: v0.7.0
    helm.sh/chart: clusterpedia-2.0.1
  name: clusterpedia-apiserver
  namespace: pedia-system
  resourceVersion: "6317151"
  uid: 6cbdf5d9-4405-43b8-955a-28b465c6e9dc
spec:
  progressDeadlineSeconds: 600
  replicas: 1
  revisionHistoryLimit: 10
  selector:
    matchLabels:
      app: clusterpedia-apiserver
      app.kubernetes.io/instance: clusterpedia
      app.kubernetes.io/name: clusterpedia
  strategy:
    rollingUpdate:
      maxSurge: 25%
      maxUnavailable: 25%
    type: RollingUpdate
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: clusterpedia-apiserver
        app.kubernetes.io/instance: clusterpedia
        app.kubernetes.io/managed-by: Helm
        app.kubernetes.io/name: clusterpedia
        app.kubernetes.io/version: v0.7.0
        helm.sh/chart: clusterpedia-2.0.1
    spec:
      containers:
      - command:
        - /usr/local/bin/apiserver
        - --secure-port=443
        - --storage-config=/etc/clusterpedia/storage/internalstorage-config.yaml
        - --tracing-config-file=/etc/clusterpedia/trace/tracing-config.yaml
        - -v=3
        env:
        - name: DB_PASSWORD
          valueFrom:
            secretKeyRef:
              key: password
              name: clusterpedia-internalstorage
        - name: OTEL_EXPORTER_OTLP_ENDPOINT
          value: localhost:4317
        - name: OTEL_SERVICE_NAME
          value: clusterpedia-apiserver
        - name: OTEL_K8S_NAMESPACE
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: metadata.namespace
        - name: OTEL_RESOURCE_ATTRIBUTES_NODE_NAME
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: spec.nodeName
        - name: OTEL_RESOURCE_ATTRIBUTES_POD_NAME
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: metadata.name
        - name: OTEL_RESOURCE_ATTRIBUTES
          value: k8s.namespace.name=$(OTEL_K8S_NAMESPACE),k8s.node.name=$(OTEL_RESOURCE_ATTRIBUTES_NODE_NAME),k8s.pod.name=$(OTEL_RESOURCE_ATTRIBUTES_POD_NAME)
        - name: GODEBUG
          value: netdns=go
        image: ghcr.io/kubekyrie/clusterpedia/apiserver-amd64:latest
        imagePullPolicy: IfNotPresent
        name: clusterpedia-apiserver
        resources: {}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /etc/clusterpedia/storage
          name: internalstorage-config
          readOnly: true
        - mountPath: /etc/clusterpedia/trace
          name: tracing-config
          readOnly: true
      dnsPolicy: ClusterFirst
      initContainers:
      - command:
        - /bin/bash
        - -ec
        - "# Load YAML data into a Bash variable\nsource /opt/scripts/parse-yaml.sh;\ncreate_variables
          /etc/clusterpedia/storage/internalstorage-config.yaml;\nuntil pg_isready
          -U ${user} -d \"dbname=${database}\" -h ${host} -p ${port}; do\necho waiting
          for database check && sleep 1; \ndone;\necho 'DataBase OK ✓'\n"
        image: docker.io/bitnami/postgresql:11.15.0-debian-10-r14
        imagePullPolicy: IfNotPresent
        name: check-storage
        resources: {}
        terminationMessagePath: /dev/termination-log
        terminationMessagePolicy: File
        volumeMounts:
        - mountPath: /etc/clusterpedia/storage
          name: internalstorage-config
          readOnly: true
        - mountPath: /opt/scripts
          name: scripts
          readOnly: true
      restartPolicy: Always
      schedulerName: default-scheduler
      securityContext: {}
      serviceAccount: clusterpedia-apiserver
      serviceAccountName: clusterpedia-apiserver
      terminationGracePeriodSeconds: 30
      volumes:
      - configMap:
          defaultMode: 420
          name: clusterpedia-internalstorage
        name: internalstorage-config
      - configMap:
          defaultMode: 420
          name: clusterpedia-scripts
        name: scripts
      - configMap:
          defaultMode: 420
          name: clusterpedia-tracing-config
        name: tracing-config
status:
  availableReplicas: 1
  conditions:
  - lastTransitionTime: "2023-12-05T11:52:16Z"
    lastUpdateTime: "2023-12-05T11:52:16Z"
    message: Deployment has minimum availability.
    reason: MinimumReplicasAvailable
    status: "True"
    type: Available
  - lastTransitionTime: "2023-12-05T11:51:28Z"
    lastUpdateTime: "2023-12-05T11:52:16Z"
    message: ReplicaSet "clusterpedia-apiserver-5474589d87" has successfully progressed.
    reason: NewReplicaSetAvailable
    status: "True"
    type: Progressing
  observedGeneration: 2
  readyReplicas: 1
  replicas: 1
  updatedReplicas: 1

[KubeKyrie]

@Iceber @calvin0327 PTAL

[KubeKyrie]

New test results:

1. enable otel trace:
   helm install clusterpedia -n pedia-system --create-namespace ./charts/clusterpedia/ --set persistenceMatchNode=None --set postgresql.primary.persistence.enabled=false --set apiserver.telemetry.tracing.enabled=true --debug

2. default, disable otel trace:
   helm install clusterpedia -n pedia-system --create-namespace ./charts/clusterpedia/ --set persistenceMatchNode=None --set postgresql.primary.persistence.enabled=false --debug

[Iceber]

LGTM，Thanks for your contribution

[calvin0327]

LGTM