[exporter/elasticsearch] Add ecs mapping for k8s.deployment.name

[ChrsMark]

Description:

This PR adds a mapping for the k8s.deployment.name attribute which is enabled by default by the k8sattributesprocessor.
The idea is to have all the enabled by default attributes mapped to ECS properly, for consistency.

Link to tracking Issue: ~

Testing:

Tested locally with:

mode: daemonset
presets:
  logsCollection:
    enabled: true
    storeCheckpoints: true
  kubernetesAttributes:
    enabled: true

extraEnvs:
  - name: ES_ENDPOINT
    valueFrom:
      secretKeyRef:
        name: elastic-secret
        key: es_endpoint
  - name: ES_API_KEY
    valueFrom:
      secretKeyRef:
        name: elastic-secret
        key: es_api_key

image:
  repository: otelcontribcol-dev
  tag: "0.0.1"
  pullPolicy: IfNotPresent

command:
  name: otelcontribcol

config:
  exporters:
    debug:
      verbosity: detailed
    elasticsearch/logs:
      endpoints:
        - ${env:ES_ENDPOINT}
      api_key: ${env:ES_API_KEY}
      logs_index: otel_logs_index
      mapping:
        mode: ecs
      sending_queue:
        enabled: true
        num_consumers: 20
        queue_size: 1000
  receivers:
    filelog:
      start_at: end
      include_file_name: false
      include_file_path: true
      exclude:
        - /var/log/pods/default_daemonset-opentelemetry-collector*_*/opentelemetry-collector/*.log
      include:
        - /var/log/pods/*/*/*.log
      operators:
        - id: container-parser
          type: container
          output: some
  processors:
    k8sattributes:
      filter:
        node_from_env_var: K8S_NODE_NAME
      passthrough: false
      pod_association:
        - sources:
            - from: resource_attribute
              name: k8s.pod.ip
        - sources:
            - from: resource_attribute
              name: k8s.pod.uid
        - sources:
            - from: connection
      extract:
        metadata:
          - "k8s.namespace.name"
          - "k8s.deployment.name"
          - "k8s.node.name"
          - "k8s.pod.name"
          - "k8s.pod.uid"
  service:
    pipelines:
      logs:
        receivers: [filelog]
        processors: [batch]
        exporters: [elasticsearch/logs]

The documents are stored in ES properly:

{
    "@timestamp": "2024-06-18T10:57:45.307790375Z",
    "agent": {
      "name": "otlp"
    },
    "k8s": {
      "container": {
        "name": "busybox",
        "restart_count": "0"
      },
    },
    "kubernetes": {
      "deployment": {
        "name": "deploy-logs"
      },
      "namespace": {
        "name": "default"
      },
      "node": {
        "name": "kind-control-plane"
      },
      "pod": {
        "name": "deploy-logs-595cdc6b8b-dptrr",
        "uid": "5166a2e2-9152-4d86-b8a4-668cc2f49a39"
      }
    },
    "log": {
      "file": {
        "path": "/var/log/pods/default_deploy-logs-595cdc6b8b-dptrr_5166a2e2-9152-4d86-b8a4-668cc2f49a39/busybox/0.log"
      },
      "iostream": "stdout"
    },
    "logtag": "F",
    "message": "otel logs at 10:57:45",
    "time": "2024-06-18T10:57:45.307790375Z"
}

Documentation: ~

/cc @carsonip @lahsivjar @andrzej-stencel

[lahsivjar]

LGTM