[Kafka] Add raft dataset for Kafka integration

packages/kafka/_dev/build/docs/README.md

@@ -54,4 +54,24 @@ Please refer to the following [document](https://www.elastic.co/guide/en/ecs/cur
 
 Please refer to the following [document](https://www.elastic.co/guide/en/ecs/current/ecs-field-reference.html) for detailed information on ECS fields.
 
-{{fields "partition"}}
+{{fields "partition"}}
+
+### raft
+
+The `raft` dataset collects metrics related to Kafka's Raft consensus algorithm implementation (KRaft), which is used for metadata management in Kafka without requiring ZooKeeper. KRaft mode is available in Kafka 3.0.0 and later versions.
+
+This dataset includes metrics such as:
+- Append and fetch records rates
+- Commit latency (average and maximum)
+- Current epoch, leader, and vote information
+- High watermark and log offset metrics
+- Node state and voter information
+- Poll idle ratio
+
+{{event "raft"}}
+
+**ECS Field Reference**
+
+Please refer to the following [document](https://www.elastic.co/guide/en/ecs/current/ecs-field-reference.html) for detailed information on ECS fields.
+
+{{fields "raft"}}

packages/kafka/changelog.yml

@@ -1,4 +1,9 @@
 # newer versions go on top
+- version: "1.20.0"
+ changes:
+ - description: Add raft data stream.
+ type: enhancement
+ link: https://github.com/elastic/integrations/pull/14616
 - version: "1.19.0"
  changes:
  - description: Allow @custom pipeline access to event.original without setting preserve_original_event.

packages/kafka/data_stream/raft/agent/stream/stream.yml.hbs

@@ -0,0 +1,78 @@
+metricsets: ["jmx"]
+hosts:
+{{#each hosts}}
+ - {{this}}
+{{/each}}
+path: {{metrics_path}}
+namespace: metrics
+period: {{period}}
+http_method: {{http_method}}
+{{#if bearer_token_file}}
+bearer_token_file: {{bearer_token_file}}
+ssl.verification_mode: {{ssl.verification_mode}}
+{{/if}}
+{{#if ssl.certificate_authorities}}
+ssl.certificate_authorities:
+{{#each ssl.certificate_authorities}}
+ - {{this}}
+{{/each}}
+{{/if}}
+{{#if ssl.certificate}}
+ssl.certificate: {{ssl.certificate}}
+{{/if}}
+{{#if ssl.key}}
+ssl.key: {{ssl.key}}
+{{/if}}
+{{#if ssl.key_passphrase}}
+ssl.key_passphrase: {{ssl.key_passphrase}}
+{{/if}}
+{{#if ssl.ca_trusted_fingerprint}}
+ssl.ca_trusted_fingerprint: {{ssl.ca_trusted_fingerprint}}
+{{/if}}
+username: {{username}}
+password: {{password}}
+jmx.mappings: 
+ # Raft metrics
+ - mbean: 'kafka.server:type=raft-metrics'
+ attributes:
+ - attr: append-records-rate
+ field: append_records_rate
+ - attr: commit-latency-avg
+ field: commit_latency_avg
+ - attr: commit-latency-max
+ field: commit_latency_max
+ - attr: current-epoch
+ field: current_epoch
+ - attr: current-leader
+ field: current_leader
+ - attr: current-vote
+ field: current_vote
+ - attr: fetch-records-rate
+ field: fetch_records_rate
+ - attr: high-watermark
+ field: high_watermark
+ - attr: log-end-epoch
+ field: log_end_epoch
+ - attr: log-end-offset
+ field: log_end_offset
+ - attr: number-unknown-voter-connections
+ field: number_unknown_voter_connections
+ - attr: poll-idle-ratio-avg
+ field: poll_idle_ratio_avg
+ - attr: current-state
+ field: current_state
+ - attr: number-of-voters
+ field: number_of_voters
+{{#if headers}}
+{{headers}}
+{{/if}}
+{{#if connect_timeout}}
+connect_timeout: {{connect_timeout}}
+{{/if}}
+{{#if timeout}}
+timeout: {{timeout}}
+{{/if}}
+{{#if processors}}
+processors:
+{{processors}}
+{{/if}}

packages/kafka/data_stream/raft/elasticsearch/ingest_pipeline/default.yml

@@ -0,0 +1,19 @@
+---
+description: Pipeline for processing Kafka Raft metrics.
+processors:
+ - rename:
+ field: jolokia.metrics
+ target_field: kafka.raft
+ ignore_missing: true
+ ignore_failure: true
+ - remove:
+ field: jolokia
+ ignore_missing: true
+ ignore_failure: true
+on_failure:
+ - set:
+ field: error.message
+ value: >-
+ Processor '{{{ _ingest.on_failure_processor_type }}}'
+ {{{#_ingest.on_failure_processor_tag}}} with tag '{{{ _ingest.on_failure_processor_tag }}}'
+ {{{/_ingest.on_failure_processor_tag}}} failed with message '{{{ _ingest.on_failure_message }}}'

packages/kafka/data_stream/raft/fields/agent.yml

@@ -0,0 +1,94 @@
+- name: cloud
+ title: Cloud
+ group: 2
+ description: Fields related to the cloud or infrastructure the events are coming from.
+ footnote: 'Examples: If Metricbeat is running on an EC2 host and fetches data from its host, the cloud info contains the data about this machine. If Metricbeat runs on a remote machine outside the cloud and fetches data from a service running in the cloud, the field contains cloud data from the machine the service is running on.'
+ type: group
+ fields:
+ - name: account.id
+ level: extended
+ type: keyword
+ ignore_above: 1024
+ dimension: true
+ description: 'The cloud account or organization id used to identify different entities in a multi-tenant environment. Examples: AWS account id, Google Cloud ORG Id, or other unique identifier.'
+ example: 666777888999
+ - name: availability_zone
+ level: extended
+ type: keyword
+ ignore_above: 1024
+ dimension: true
+ description: Availability zone in which this host is running.
+ example: us-east-1c
+ - name: instance.id
+ level: extended
+ type: keyword
+ ignore_above: 1024
+ description: Instance ID of the host machine.
+ example: i-1234567890abcdef0
+ dimension: true
+ - name: provider
+ level: extended
+ type: keyword
+ ignore_above: 1024
+ description: Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean.
+ example: aws
+ dimension: true
+ - name: region
+ level: extended
+ type: keyword
+ ignore_above: 1024
+ dimension: true
+ description: Region in which this host is running.
+ example: us-east-1
+ - name: image.id
+ type: keyword
+ description: Image ID for the cloud instance.
+- name: container
+ title: Container
+ group: 2
+ description: 'Container fields are used for meta information about the specific container that is the source of information. These fields help correlate data based containers from any runtime.'
+ type: group
+ fields:
+ - name: id
+ level: core
+ type: keyword
+ ignore_above: 1024
+ description: Unique container id.
+ dimension: true
+- name: host
+ title: Host
+ group: 2
+ description: 'A host is defined as a general computing instance. ECS host.* fields should be populated with details about the host on which the event happened, or from which the measurement was taken. Host types include hardware, virtual machines, Docker containers, and Kubernetes nodes.'
+ type: group
+ fields:
+ - name: name
+ level: core
+ type: keyword
+ ignore_above: 1024
+ dimension: true
+ description: 'Name of the host. It can contain what `hostname` returns on Unix systems, the fully qualified domain name, or a name specified by the user. The sender decides which value to use.'
+ - name: containerized
+ type: boolean
+ description: >
+ If the host is a container.
+
+ - name: os.build
+ type: keyword
+ example: "18D109"
+ description: >
+ OS build information.
+
+ - name: os.codename
+ type: keyword
+ example: "stretch"
+ description: >
+ OS codename, if any.
+
+- name: agent
+ title: Agent
+ type: group
+ fields:
+ - name: id
+ type: keyword
+ ignore_above: 1024
+ dimension: true

packages/kafka/data_stream/raft/fields/base-fields.yml

@@ -0,0 +1,16 @@
+- name: data_stream.type
+ type: constant_keyword
+ description: Data stream type.
+- name: event.module
+ type: constant_keyword
+ description: Event module
+ value: jolokia
+- name: data_stream.dataset
+ type: constant_keyword
+ description: Data stream dataset.
+- name: data_stream.namespace
+ type: constant_keyword
+ description: Data stream namespace.
+- name: '@timestamp'
+ type: date
+ description: Event timestamp.

packages/kafka/data_stream/raft/fields/ecs.yml

@@ -0,0 +1,3 @@
+- external: ecs
+ name: service.address
+ dimension: true

packages/kafka/data_stream/raft/fields/fields.yml

@@ -0,0 +1,77 @@
+- name: kafka.raft
+ type: group
+ description: >
+ Kafka Raft metrics.
+ fields:
+ - name: append_records_rate
+ type: double
+ description: >
+ The average number of records appended per sec as the leader of the raft quorum.
+ metric_type: gauge
+ - name: commit_latency_avg
+ type: double
+ description: >
+ The average time in milliseconds to commit an entry in the raft log.
+ metric_type: gauge
+ unit: ms
+ - name: commit_latency_max
+ type: double
+ description: >
+ The maximum time in milliseconds to commit an entry in the raft log.
+ metric_type: gauge
+ unit: ms
+ - name: current_epoch
+ type: long
+ description: >
+ The current quorum epoch.
+ metric_type: gauge
+ - name: current_leader
+ type: long
+ description: >
+ The current quorum leader's id; -1 indicates unknown.
+ metric_type: gauge
+ - name: current_vote
+ type: long
+ description: >
+ The current voted id.
+ metric_type: gauge
+ - name: fetch_records_rate
+ type: double
+ description: >
+ The average number of records fetched from the leader of the raft quorum.
+ metric_type: gauge
+ - name: high_watermark
+ type: long
+ description: >
+ The high watermark maintained on this member; -1 if it is unknown.
+ metric_type: gauge
+ - name: log_end_epoch
+ type: long
+ description: >
+ The current raft log end epoch.
+ metric_type: gauge
+ - name: log_end_offset
+ type: long
+ description: >
+ The current raft log end offset.
+ metric_type: gauge
+ - name: number_unknown_voter_connections
+ type: double
+ description: >
+ Number of unknown voters whose connection information is not cached; would never be larger than quorum-size.
+ metric_type: gauge
+ - name: poll_idle_ratio_avg
+ type: double
+ description: >
+ The ratio of time the Raft IO thread is idle as opposed to doing work (e.g. handling requests or replicating from the leader).
+ metric_type: gauge
+ unit: percent
+ - name: current_state
+ type: keyword
+ description: >
+ The current state of this member; possible values are leader, candidate, voted, follower, unattached, observer.
+ - name: number_of_voters
+ type: double
+ description: >
+ Number of voters for a KRaft topic partition.
+ metric_type: gauge