Update apm-data and remap for OTel hostmetrics to elastic metrics by lahsivjar · Pull Request #13196 · elastic/apm-server

lahsivjar · 2024-05-20T21:48:32Z

Motivation/summary

Remaps metrics produced by OTel's hostmetrics receiver to Elastic compatible metrics. This powers parts of Kibana's curated UIs around host and system.

To be merged after elastic/apm-data#277

Checklist

Update CHANGELOG.asciidoc
~~- [ ] Documentation has been updated~~

For functional changes, consider:

Is it observable through the addition of either logging or metrics?
Is its use being published in telemetry to enable product improvement?
Have system tests been added to avoid regression?

How to test these changes

To test all the changes, the best approach would be to run the collector on K8s. This would allow to test the Kibana UI for both, hostmetrics and K8s metrics.

Run OTel collector on K8s, I have attached an example of a manifest file that could be used to run the collector. Note that, since we are testing the APM path using the collector the exporter should point to APM-Server.
Visualize that the curated UI is working:
1. The UI is located at Observability -> Infrastructure/{Inventory, Hosts}. Both these UIs should show the host running OTel collector.
2. Given that the collector is running on K8s, the Inventory UI should also show the Pod names (by clicking on Show -> Kubernetes Pods).
3. In the hosts UI, there are some panels which will not work:
  1. Network panel (Network remappers should also handle host.network.* metrics opentelemetry-lib#14)
  2. Log Rate (should be empty)
  3. Host OS version and Host OS name if not passed explicitly would be empty
  4. Cloud Provider may be empty if run locally
Also ensure that the Overview dashboard in Observability shows the hosts list.

Example K8s manifest for running OTel collector

apiVersion: v1
kind: ServiceAccount
metadata:
  name: elastic-otel-collector-agent
  namespace: default
  labels:
    app.kubernetes.io/name: elastic-opentelemetry-collector
    app.kubernetes.io/version: "8.15.0-SNAPSHOT"
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: elastic-otel-collector-agent
  labels:
    app.kubernetes.io/name: elastic-opentelemetry-collector
    app.kubernetes.io/version: "8.15.0-SNAPSHOT"
rules:
  - apiGroups: [""]
    resources: ["pods", "namespaces", "nodes"]
    verbs: ["get", "watch", "list"]
  - apiGroups: ["apps"]
    resources: ["daemonsets", "deployments", "replicasets", "statefulsets"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["extensions"]
    resources: ["daemonsets", "deployments", "replicasets"]
    verbs: ["get", "list", "watch"]
  - apiGroups: [ "" ]
    resources: [ "nodes/stats" ]
    verbs: [ "get", "watch", "list" ]
  - apiGroups: [ "" ]
    resources: [ "nodes/proxy" ]
    verbs: [ "get" ]
  - apiGroups: [ "" ]
    resources: ["configmaps"]
    verbs: ["get"]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: elastic-otel-collector-agent
  labels:
    app.kubernetes.io/name: elastic-opentelemetry-collector
    app.kubernetes.io/version: "8.15.0-SNAPSHOT"
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: elastic-otel-collector-agent
subjects:
  - kind: ServiceAccount
    name: elastic-otel-collector-agent
    namespace: default
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: otel-collector-conf
  labels:
    app: opentelemetry
    component: otel-collector-conf
data:
  otel-collector-config: |
    receivers:
      hostmetrics:
        collection_interval: 10s
        # root_path: /hostfs
        scrapers:
          cpu:
            metrics:
              system.cpu.utilization:
                enabled: true
              system.cpu.logical.count:
                enabled: true
          memory:
            metrics:
              system.memory.utilization:
                enabled: true
          process:
            mute_process_exe_error: true
            mute_process_io_error: true
            mute_process_user_error: true
            metrics:
              process.threads:
                enabled: true
              process.open_file_descriptors:
                enabled: true
              process.memory.utilization:
                enabled: true
              process.disk.operations:
                enabled: true
          network:
          processes:
          load:
          disk:
          filesystem:
            exclude_mount_points:
              mount_points:
                - /dev/*
                - /proc/*
                - /sys/*
                - /run/k3s/containerd/*
                - /var/lib/docker/*
                - /var/lib/kubelet/*
                - /snap/*
              match_type: regexp
            exclude_fs_types:
              fs_types:
                - autofs
                - binfmt_misc
                - bpf
                - cgroup2
                - configfs
                - debugfs
                - devpts
                - devtmpfs
                - fusectl
                - hugetlbfs
                - iso9660
                - mqueue
                - nsfs
                - overlay
                - proc
                - procfs
                - pstore
                - rpc_pipefs
                - securityfs
                - selinuxfs
                - squashfs
                - sysfs
                - tracefs
              match_type: strict
      kubeletstats:
        auth_type: serviceAccount
        collection_interval: 20s
        endpoint: ${env:K8S_NODE_NAME}:10250
        node: '${env:K8S_NODE_NAME}'
        # Required to work for all CSPs without an issue
        insecure_skip_verify: true
        k8s_api_config:
          auth_type: serviceAccount
        metric_groups:
          - node
          - pod
          - node
        metrics:
          k8s.pod.cpu.node.utilization:
            enabled: true
          k8s.container.cpu_limit_utilization:
            enabled: true
          k8s.pod.cpu_limit_utilization:
            enabled: true
          k8s.container.cpu_request_utilization:
            enabled: true
          k8s.container.memory_limit_utilization:
            enabled: true
          k8s.pod.memory_limit_utilization:
            enabled: true
          k8s.container.memory_request_utilization:
            enabled: true
          k8s.node.uptime:
            enabled: true
          k8s.node.cpu.usage:
            enabled: true
          k8s.pod.cpu.usage:
            enabled: true
        extra_metadata_labels:
          - container.id
    processors:
      resource/k8s:
        attributes:
          - key: service.name
            from_attribute: app.label.component
            action: insert
      resource/cloud:
        attributes:
          - key: cloud.instance.id
            from_attribute: host.id
            action: insert
      resourcedetection/system:
        detectors: ["system", "ec2"]
        system:
          hostname_sources: [ "os" ]
          resource_attributes:
            host.name:
              enabled: true
            host.id:
              enabled: false
            host.arch:
              enabled: true
            host.ip:
              enabled: true
            host.mac:
              enabled: true
            host.cpu.vendor.id:
              enabled: true
            host.cpu.family:
              enabled: true
            host.cpu.model.id:
              enabled: true
            host.cpu.model.name:
              enabled: true
            host.cpu.stepping:
              enabled: true
            host.cpu.cache.l2.size:
              enabled: true
            os.description:
              enabled: true
            os.type:
              enabled: true
      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.statefulset.name"
            - "k8s.daemonset.name"
            - "k8s.cronjob.name"
            - "k8s.job.name"
            - "k8s.node.name"
            - "k8s.pod.name"
            - "k8s.pod.uid"
            - "k8s.pod.start_time"
          labels:
            - tag_name: app.label.component
              key: app.kubernetes.io/component
              from: pod
      batch:
      memory_limiter:
        # 80% of maximum memory up to 2G
        limit_mib: 1500
        # 25% of limit up to 2G
        spike_limit_mib: 512
        check_interval: 5s
    exporters:
      otlphttp:
        endpoint: <APM_endpoint>
        tls:
          insecure: false
        headers:
          Authorization: Bearer <APM_secret_token>
      # This should be replaced by the local apm-server
      # to allow the max flexibility in testing
      #otlphttp:
      #  endpoint: "http://apm.server.local:8200"
      #  tls:
      #    insecure: true
      debug:
        verbosity: basic
    service:
      pipelines:
        metrics:
          exporters:
          - debug
          - otlphttp
          processors:
          - k8sattributes
          - resourcedetection/system
          - resource/k8s
          - resource/cloud
          receivers:
          - kubeletstats
          - hostmetrics
---
apiVersion: v1
kind: Service
metadata:
  name: otel-collector
  labels:
    app: opentelemetry
    component: otel-collector
spec:
  ports:
  - name: otlp-grpc # Default endpoint for OpenTelemetry gRPC receiver.
    port: 4317
    protocol: TCP
    targetPort: 4317
  - name: otlp-http # Default endpoint for OpenTelemetry HTTP receiver.
    port: 4318
    protocol: TCP
    targetPort: 4318
  - name: metrics # Default endpoint for querying metrics.
    port: 8888
  selector:
    component: otel-collector
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: otel-collector
  labels:
    app: opentelemetry
    component: otel-collector
spec:
  selector:
    matchLabels:
      app: opentelemetry
      component: otel-collector
  minReadySeconds: 5
  progressDeadlineSeconds: 120
  replicas: 1
  template:
    metadata:
      labels:
        app: opentelemetry
        component: otel-collector
    spec:
      serviceAccountName: elastic-otel-collector-agent
      securityContext:
        runAsUser: 0
        runAsGroup: 0
      hostNetwork: true
      dnsPolicy: ClusterFirstWithHostNet
      # Enable for sending data to locally running APM-Server
      # hostAliases:
      # - ip: "192.168.0.44"
      #   hostnames:
      #   - "apm.server.local"
      containers:
      - image: otel/opentelemetry-collector-contrib:0.104.0
        name: otel-collector
        resources:
          limits:
            cpu: 1
            memory: 2Gi
          requests:
            cpu: 200m
            memory: 400Mi
        ports:
        - containerPort: 55679 # Default endpoint for ZPages.
        - containerPort: 4317 # Default endpoint for OpenTelemetry receiver.
        - containerPort: 14250 # Default endpoint for Jaeger gRPC receiver.
        - containerPort: 14268 # Default endpoint for Jaeger HTTP receiver.
        - containerPort: 9411 # Default endpoint for Zipkin receiver.
        - containerPort: 8888  # Default endpoint for querying metrics.
        env:
          - name: MY_POD_IP
            valueFrom:
              fieldRef:
                apiVersion: v1
                fieldPath: status.podIP
          - name: GOMEMLIMIT
            value: 1600MiB
          - name: K8S_NODE_NAME
            valueFrom:
              fieldRef:
                fieldPath: spec.nodeName
        volumeMounts:
        - name: otel-collector-config-vol
          mountPath: /etc/otelcol-contrib
      volumes:
        - configMap:
            name: otel-collector-conf
            items:
              - key: otel-collector-config
                path: config.yaml
          name: otel-collector-config-vol

Related issues

mergify · 2024-05-20T21:49:06Z

This pull request does not have a backport label. Could you fix it @lahsivjar? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

backport-7.17 is the label to automatically backport to the 7.17 branch.
backport-8./d is the label to automatically backport to the 8./d branch. /d is the digit.

NOTE: backport-skip has been added to this pull request.

lahsivjar · 2024-06-05T09:33:58Z

changelogs/head.asciidoc


 - Avoid data race due to reuse of `bytes.Buffer` in ES bulk requests {pull}13155[13155]
 - APM Server now relies on the Elasticsearch apm-data plugin's index templates, which reverts some unsafe uses of `flattened` field types {pull}12066[12066]
+- Add `error.id` to jaeger errors {pull}13196[13196]


CC: @kruskall this is due to the new apm-data version update.

mergify · 2024-06-05T13:42:39Z

This pull request is now in conflicts. Could you fix it @lahsivjar? 🙏
To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

git fetch upstream
git checkout -b hostmetrics-poc upstream/hostmetrics-poc
git merge upstream/main
git push upstream hostmetrics-poc

lahsivjar · 2024-06-07T14:15:16Z

systemtest/approvals/TestOTLPGRPCTraces.approved.json

            "opentelemetry/go"
        ],
        "agent.version": [
-            "1.25.0"


[For reviewers] This change is due to upgrade of the otel-agent in the system test from v1.25.0 to v1.27.0

lahsivjar · 2024-06-07T14:16:50Z

systemtest/approvals/TestDropUnsampled.approved.json

 [
+    {
+        "@timestamp": [
+            "dynamic"


[For reviewers] This change is because PR elastic/apm-tools#61 now sorts the docs after handling dynamic fields.

carsonip · 2024-06-07T14:30:22Z

changelogs/head.asciidoc

 - APM Server now relies on the Elasticsearch apm-data plugin's index templates, removing the requirement to install the APM integration package {pull}12066[12066]
- Upgraded bundled APM Java agent attacher CLI to version 1.50.0 {pull}13326[13326]
+- Upgraded bundled APM Java agent attacher CLI to version 1.50.0 {pull}13326[13326]
+- Enable Kibana curated UIs to work with hostmetrics from OpenTelemetry's [hostmetricsreceiver](https://pkg.go.dev/go.opentelemetry.io/collector/receiver/hostmetricsreceiver) {pull}13196[13196]


Not sure if this link works in asciidoc

Good catch, updated!

The update is based on

apm-server/changelogs/8.5.asciidoc

Line 55 in ef91669

Please use the https://www.docker.elastic.co/r/apm[Elastic docker registry] to download the 8.5.0 APM Server image.

carsonip

lgtm, can you fill out the "How to test these changes" section?

* upstream/main: chore: Update .go-version with Golang version 1.22.4 (#13367) build(deps): bump github.com/jaegertracing/jaeger from 1.56.0 to 1.57.0 in /systemtest (#13316) [updatecli] Bump elastic stack version to 8.15.0-725cdb43 (#13363) feat: add wolfi based image (#12671) Add Amazon Linux 2023 to the smoke tests (#13358) Update apm-data and remap for OTel hostmetrics to elastic metrics (#13196) build(deps): bump github.com/elastic/go-elasticsearch/v8 from 8.13.1 to 8.14.0 (#13356)

carsonip · 2024-07-16T14:30:01Z

Testing

✔️ test-plan-ok

Tested with otel collector running in k8s alongside opentelemetry-demo

Most graphs in Infrastructure.{Inventory, Hosts} work, with the exception of network graph

lahsivjar requested a review from a team as a code owner May 20, 2024 21:48

lahsivjar marked this pull request as draft May 20, 2024 21:49

mergify bot added the backport-skip Skip notification from the automated backport with mergify label May 20, 2024

lahsivjar force-pushed the hostmetrics-poc branch 2 times, most recently from 34bce97 to 0cef088 Compare June 5, 2024 09:31

Update apm-data and remap for OTel hostmetrics to elastic metrics

2f65826

lahsivjar force-pushed the hostmetrics-poc branch from 0cef088 to 2f65826 Compare June 5, 2024 09:32

lahsivjar changed the title ~~Hostmetrics poc~~ Update apm-data and remap for OTel hostmetrics to elastic metrics Jun 5, 2024

lahsivjar marked this pull request as ready for review June 5, 2024 09:33

lahsivjar commented Jun 5, 2024

View reviewed changes

Update notice for new depenedency

695e5a1

lahsivjar enabled auto-merge (squash) June 5, 2024 09:44

lahsivjar added 3 commits June 5, 2024 11:13

Merge branch 'main' into hostmetrics-poc

fc91720

Fix systemtest for jaeger error.id

4fb93ca

TestJaeger: make check-approvals

b802bc7

kruskall mentioned this pull request Jun 5, 2024

build(deps): bump github.com/elastic/apm-data from 1.1.0 to 1.2.0 #13321

Closed

kruskall previously approved these changes Jun 5, 2024

View reviewed changes

lahsivjar mentioned this pull request Jun 5, 2024

[approvaltest] Ignore dynamic fields from sort fields elastic/apm-tools#61

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Update apm-tools to fix TestJaeger

8179c20

lahsivjar dismissed kruskall’s stale review via 8179c20 June 7, 2024 14:06

lahsivjar added 2 commits June 7, 2024 15:07

Upgrade opentelemetry-lib

c3a7d88

Merge branch 'main' into hostmetrics-poc

14cc02c

lahsivjar commented Jun 7, 2024

View reviewed changes

lahsivjar requested review from a team and kruskall June 7, 2024 14:23

Update notice

19e939a

carsonip reviewed Jun 7, 2024

View reviewed changes

lahsivjar added 2 commits June 7, 2024 15:37

Update missing systemtest

2d4b773

Fix link in asciidoc

d80e7fd

lahsivjar disabled auto-merge June 7, 2024 14:41

lahsivjar enabled auto-merge (squash) June 7, 2024 14:41

carsonip approved these changes Jun 7, 2024

View reviewed changes

lahsivjar merged commit 1fdef04 into elastic:main Jun 7, 2024

lahsivjar deleted the hostmetrics-poc branch June 7, 2024 16:00

inge4pres mentioned this pull request Jul 5, 2024

APM Server 8.15 Test Plan #13604

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9 tasks

inge4pres added test-plan v8.15.0 labels Jul 5, 2024

inge4pres assigned carsonip Jul 12, 2024

carsonip added the test-plan-ok label Jul 16, 2024

lahsivjar mentioned this pull request Mar 7, 2025

Infrastructure inventory UI is broken due to missing mapping for system.process.cpu.start_time #16064

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Update apm-data and remap for OTel hostmetrics to elastic metrics#13196

Update apm-data and remap for OTel hostmetrics to elastic metrics#13196
lahsivjar merged 11 commits intoelastic:mainfrom
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