- Metricbeat Reference: other versions:
- Metricbeat overview
- Quick start: installation and configuration
- Set up and run
- Upgrade Metricbeat
- How Metricbeat works
- Configure
- Modules
- General settings
- Project paths
- Config file loading
- Output
- Kerberos
- SSL
- Index lifecycle management (ILM)
- Elasticsearch index template
- Kibana endpoint
- Kibana dashboards
- Processors
- Define processors
- add_cloud_metadata
- add_cloudfoundry_metadata
- add_docker_metadata
- add_fields
- add_host_metadata
- add_id
- add_kubernetes_metadata
- add_labels
- add_locale
- add_network_direction
- add_nomad_metadata
- add_observer_metadata
- add_process_metadata
- add_tags
- append
- community_id
- convert
- copy_fields
- decode_base64_field
- decode_duration
- decode_json_fields
- decode_xml
- decode_xml_wineventlog
- decompress_gzip_field
- detect_mime_type
- dissect
- dns
- drop_event
- drop_fields
- extract_array
- fingerprint
- include_fields
- move_fields
- rate_limit
- registered_domain
- rename
- replace
- script
- syslog
- translate_ldap_attribute
- translate_sid
- truncate_fields
- urldecode
- Autodiscover
- Internal queue
- Logging
- HTTP endpoint
- Regular expression support
- Instrumentation
- Feature flags
- metricbeat.reference.yml
- How to guides
- Modules
- ActiveMQ module
- Aerospike module
- Airflow module
- Apache module
- AWS module
- AWS awshealth metricset
- AWS billing metricset
- AWS cloudwatch metricset
- AWS dynamodb metricset
- AWS ebs metricset
- AWS ec2 metricset
- AWS elb metricset
- AWS kinesis metricset
- AWS lambda metricset
- AWS natgateway metricset
- AWS rds metricset
- AWS s3_daily_storage metricset
- AWS s3_request metricset
- AWS sns metricset
- AWS sqs metricset
- AWS transitgateway metricset
- AWS usage metricset
- AWS vpn metricset
- AWS Fargate module
- Azure module
- Azure app_insights metricset
- Azure app_state metricset
- Azure billing metricset
- Azure compute_vm metricset
- Azure compute_vm_scaleset metricset
- Azure container_instance metricset
- Azure container_registry metricset
- Azure container_service metricset
- Azure database_account metricset
- Azure monitor metricset
- Azure storage metricset
- Beat module
- Ceph module
- Ceph cluster_disk metricset
- Ceph cluster_health metricset
- Ceph cluster_status metricset
- Ceph mgr_cluster_disk metricset
- Ceph mgr_cluster_health metricset
- Ceph mgr_osd_perf metricset
- Ceph mgr_osd_pool_stats metricset
- Ceph mgr_osd_tree metricset
- Ceph mgr_pool_disk metricset
- Ceph monitor_health metricset
- Ceph osd_df metricset
- Ceph osd_tree metricset
- Ceph pool_disk metricset
- Cloudfoundry module
- CockroachDB module
- Consul module
- Containerd module
- Coredns module
- Couchbase module
- CouchDB module
- Docker module
- Dropwizard module
- Elasticsearch module
- Elasticsearch ccr metricset
- Elasticsearch cluster_stats metricset
- Elasticsearch enrich metricset
- Elasticsearch index metricset
- Elasticsearch index_recovery metricset
- Elasticsearch index_summary metricset
- Elasticsearch ingest_pipeline metricset
- Elasticsearch ml_job metricset
- Elasticsearch node metricset
- Elasticsearch node_stats metricset
- Elasticsearch pending_tasks metricset
- Elasticsearch shard metricset
- Enterprise Search module
- Envoyproxy module
- Etcd module
- Google Cloud Platform module
- Google Cloud Platform billing metricset
- Google Cloud Platform carbon metricset
- Google Cloud Platform compute metricset
- Google Cloud Platform dataproc metricset
- Google Cloud Platform firestore metricset
- Google Cloud Platform gke metricset
- Google Cloud Platform loadbalancing metricset
- Google Cloud Platform metrics metricset
- Google Cloud Platform pubsub metricset
- Google Cloud Platform storage metricset
- Golang module
- Graphite module
- HAProxy module
- HTTP module
- IBM MQ module
- IIS module
- Istio module
- Jolokia module
- Kafka module
- Kibana module
- Kubernetes module
- Kubernetes apiserver metricset
- Kubernetes container metricset
- Kubernetes controllermanager metricset
- Kubernetes event metricset
- Kubernetes node metricset
- Kubernetes pod metricset
- Kubernetes proxy metricset
- Kubernetes scheduler metricset
- Kubernetes state_container metricset
- Kubernetes state_cronjob metricset
- Kubernetes state_daemonset metricset
- Kubernetes state_deployment metricset
- Kubernetes state_job metricset
- Kubernetes state_node metricset
- Kubernetes state_persistentvolumeclaim metricset
- Kubernetes state_pod metricset
- Kubernetes state_replicaset metricset
- Kubernetes state_resourcequota metricset
- Kubernetes state_service metricset
- Kubernetes state_statefulset metricset
- Kubernetes state_storageclass metricset
- Kubernetes system metricset
- Kubernetes volume metricset
- KVM module
- Linux module
- Logstash module
- Memcached module
- Cisco Meraki module
- MongoDB module
- MSSQL module
- Munin module
- MySQL module
- NATS module
- Nginx module
- Openmetrics module
- Oracle module
- Panw module
- PHP_FPM module
- PostgreSQL module
- Prometheus module
- RabbitMQ module
- Redis module
- Redis Enterprise module
- SQL module
- Stan module
- Statsd module
- SyncGateway module
- System module
- System core metricset
- System cpu metricset
- System diskio metricset
- System entropy metricset
- System filesystem metricset
- System fsstat metricset
- System load metricset
- System memory metricset
- System network metricset
- System network_summary metricset
- System process metricset
- System process_summary metricset
- System raid metricset
- System service metricset
- System socket metricset
- System socket_summary metricset
- System uptime metricset
- System users metricset
- Tomcat module
- Traefik module
- uWSGI module
- vSphere module
- Windows module
- ZooKeeper module
- Exported fields
- ActiveMQ fields
- Aerospike fields
- Airflow fields
- Apache fields
- AWS fields
- AWS Fargate fields
- Azure fields
- Beat fields
- Beat fields
- Ceph fields
- Cloud provider metadata fields
- Cloudfoundry fields
- CockroachDB fields
- Common fields
- Consul fields
- Containerd fields
- Coredns fields
- Couchbase fields
- CouchDB fields
- Docker fields
- Docker fields
- Dropwizard fields
- ECS fields
- Elasticsearch fields
- Enterprise Search fields
- Envoyproxy fields
- Etcd fields
- Google Cloud Platform fields
- Golang fields
- Graphite fields
- HAProxy fields
- Host fields
- HTTP fields
- IBM MQ fields
- IIS fields
- Istio fields
- Jolokia fields
- Jolokia Discovery autodiscover provider fields
- Kafka fields
- Kibana fields
- Kubernetes fields
- Kubernetes fields
- KVM fields
- Linux fields
- Logstash fields
- Memcached fields
- MongoDB fields
- MSSQL fields
- Munin fields
- MySQL fields
- NATS fields
- Nginx fields
- Openmetrics fields
- Oracle fields
- Panw fields
- PHP_FPM fields
- PostgreSQL fields
- Process fields
- Prometheus fields
- Prometheus typed metrics fields
- RabbitMQ fields
- Redis fields
- Redis Enterprise fields
- SQL fields
- Stan fields
- Statsd fields
- SyncGateway fields
- System fields
- Tomcat fields
- Traefik fields
- uWSGI fields
- vSphere fields
- Windows fields
- ZooKeeper fields
- Monitor
- Secure
- Troubleshoot
- Get help
- Debug
- Understand logged metrics
- Common problems
- "open /compat/linux/proc: no such file or directory" error on FreeBSD
- Metricbeat collects system metrics for interfaces you didn’t configure
- Metricbeat uses too much bandwidth
- Error loading config file
- Found unexpected or unknown characters
- Logstash connection doesn’t work
- Publishing to Logstash fails with "connection reset by peer" message
- @metadata is missing in Logstash
- Not sure whether to use Logstash or Beats
- SSL client fails to connect to Logstash
- Monitoring UI shows fewer Beats than expected
- Dashboard could not locate the index-pattern
- High RSS memory usage due to MADV settings
- Contribute to Beats
Use environment variables in the configuration
editUse environment variables in the configuration
editYou can use environment variable references in the config file to set values that need to be configurable during deployment. To do this, use:
${VAR}
Where VAR
is the name of the environment variable.
Each variable reference is replaced at startup by the value of the environment variable. The replacement is case-sensitive and occurs before the YAML file is parsed. References to undefined variables are replaced by empty strings unless you specify a default value or custom error text.
To specify a default value, use:
${VAR:default_value}
Where default_value
is the value to use if the environment variable is
undefined.
To specify custom error text, use:
${VAR:?error_text}
Where error_text
is custom text that will be prepended to the error
message if the environment variable cannot be expanded.
If you need to use a special character in your configuration file, use $
to escape the expansion. For example, you can escape ${
or }
with $${
or $}
.
After changing the value of an environment variable, you need to restart Metricbeat to pick up the new value.
You can also specify environment variables when you override a config
setting from the command line by using the -E
option. For example:
-E name=${NAME}
Examples
editHere are some examples of configurations that use environment variables and what each configuration looks like after replacement:
Config source | Environment setting | Config after replacement |
---|---|---|
|
|
|
|
no setting |
|
|
no setting |
|
|
|
|
|
no setting |
None. Returns an error message that’s prepended with the custom text. |
|
|
|
Specify complex objects in environment variables
editYou can specify complex objects, such as lists or dictionaries, in environment variables by using a JSON-like syntax.
As with JSON, dictionaries and lists are constructed using {}
and []
. But
unlike JSON, the syntax allows for trailing commas and slightly different string
quotation rules. Strings can be unquoted, single-quoted, or double-quoted, as a
convenience for simple settings and to make it easier for you to mix quotation
usage in the shell. Arrays at the top-level do not require brackets ([]
).
For example, the following environment variable is set to a list:
ES_HOSTS="10.45.3.2:9220,10.45.3.1:9230"
You can reference this variable in the config file:
output.elasticsearch: hosts: '${ES_HOSTS}'
When Metricbeat loads the config file, it resolves the environment variable and
replaces it with the specified list before reading the hosts
setting.
Do not use double-quotes ("
) to wrap regular expressions, or the backslash (\
) will be interpreted as an escape character.
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