Ubuntu 22.04
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Elastic Stack 8 : Install Metricbeat
2022/11/09
 
Install Metricbeat that collectes metrics from System or Services.
For Metricbeat details, refer to the official site.
⇒ https://www.elastic.co/guide/en/beats/metricbeat/current/metricbeat-modules.html
[1] Install Metricbeat. Configure Elasticsearch repository before it.
root@dlp:~#
apt -y install metricbeat
[2] Configure basic settings and start Metricbeat.
root@dlp:~#
vi /etc/metricbeat/metricbeat.yml
# line 67 : if use Kibana, uncomment and specify output host
# if SSL is enabled on Kibana, hostname should be the same with the hostname in certs
# [username] and [password] is the admin user's one
# if using self-signed certificate, specify [ssl.verification_mode: none]

setup.kibana:
.....
  host: "https://dlp.srv.world:5601"
  protocol: "https"
  username: "elastic"
  password: "password"
  ssl.enabled: true
  ssl.verification_mode: none

# line 98 : specify output of Elasticsearch
# [username] and [password] is the admin user's one
# [ssl.certificate_authorities] is the cacert generated by Elasticsearch installation

output.elasticsearch:
  # Array of hosts to connect to.
  hosts: ["https://dlp.srv.world:9200"]

  protocol: "https"
  username: "elastic"
  password: "password"
  ssl.certificate_authorities: "/etc/elasticsearch/certs/http_ca.crt"

.....
.....

root@dlp:~#
vi /etc/metricbeat/metricbeat.reference.yml
# line 61 : set items to collect data
# enable and disable to comment out and uncomment

- module: system
  metricsets:
    - cpu             # CPU usage
    - load            # CPU load averages
    - memory          # Memory usage
    - network         # Network IO
    - process         # Per process metrics
    - process_summary # Process summary
    - uptime          # System Uptime
    - socket_summary  # Socket summary
    #- core           # Per CPU core usage
    #- diskio         # Disk IO
    #- filesystem     # File system usage for each mountpoint
    #- fsstat         # File system summary metrics
    #- raid           # Raid
    #- socket         # Sockets and connection info (linux only)
    #- service        # systemd service information
  enabled: true
  period: 10s
  processes: ['.*']

# line 2677 : if use Kibana, uncomment and specify output host
# if SSL is enabled on Kibana, uncomment ssl related lines
# [username] and [password] is the admin user's one
# if using self-signed certificate, specify [ssl.verification_mode: none]

setup.kibana:

  # Kibana Host
  # Scheme and port can be left out and will be set to the default (http and 5601)
  # In case you specify and additional path, the scheme is required: http://localhost:5601/path
  # IPv6 addresses should always be defined as: https://[2001:db8::1]:5601
  host: "https://dlp.srv.world:5601"

   # Optional protocol and basic auth credentials.
  protocol: "https"
  username: "elastic"
  password: "password"

  # Optional HTTP path
  #path: ""

  # Optional Kibana space ID.
  #space.id: ""

  # Use SSL settings for HTTPS.
  ssl.enabled: true
  
.....
.....

  # after very careful consideration. It is primarily intended as a temporary
  # diagnostic mechanism when attempting to resolve TLS errors; its use in
  # production environments is strongly discouraged.
  # The default value is full.
  ssl.verification_mode: none

root@dlp:~#
systemctl enable --now metricbeat
[3] Verify status the data has been collected normally.
# index list

root@dlp:~#
curl -u elastic --cacert /etc/elasticsearch/certs/http_ca.crt https://127.0.0.1:9200/_cat/indices?v

Enter host password for user 'elastic'
health status index                                  uuid                   pri rep docs.count docs.deleted store.size pri.store.size
yellow open   .ds-metricbeat-8.5.0-2022.11.09-000001 MRfmgqLxSGCLapOAJDDZww   1   1       6412            0      9.1mb          9.1mb
yellow open   test_index                             Yw-_PdilSIueIBLM9KmihQ   1   1          1            0      6.4kb          6.4kb

# document list on the index

root@dlp:~#
curl -u elastic --cacert /etc/elasticsearch/certs/http_ca.crt https://127.0.0.1:9200/.ds-metricbeat-8.5.0-2022.11.09-000001/_search?pretty

Enter host password for user 'elastic'
{
  "took" : 2,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 6526,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : ".ds-metricbeat-8.5.0-2022.11.09-000001",
        "_id" : "aUMPW4QBQ1Dwm2jJ_ye1",
        "_score" : 1.0,
        "_source" : {
          "@timestamp" : "2022-11-09T06:24:45.003Z",
          "system" : {
            "load" : {
              "15" : 0.06,
              "norm" : {
                "1" : 0.09,
                "5" : 0.075,
                "15" : 0.03
.....
.....
[4] If Kibana is running, it's possible to import data to sample Dashboards.
root@dlp:~#
metricbeat setup --dashboards

Loading dashboards (Kibana must be running and reachable)
Loaded dashboards
Matched Content