# Docker

A Docker container for NetObserv SNMP is available on [Docker Hub](https://hub.docker.com/r/elastiflow/snmp-collector). [docker-compose](https://docs.docker.com/compose/) is a good way to run the container. It allows for the various environment variables, used to configure the collector, to be easily managed in one place without having to enter them on the command line.

### docker-compose.yml

The following `docker-compose.yml` file provides a starting point that can be further customized for your environment and needs.

<pre data-overflow="wrap"><code>
services:
  # ElastiFlow NetObserv SNMP
  snmp-collector:
    image: elastiflow/snmp-collector:<code class="expression">space.vars.current_version</code>
    container_name: snmp-collector
    restart: 'unless-stopped'
    volumes:
      - /etc/elastiflow:/etc/elastiflow
    environment:
      EF_LICENSE_ACCEPTED: 'false'
      #EF_ACCOUNT_ID: ''

      #EF_LICENSE_KEY: ''
      #EF_LICENSE_TELEMETRY_HOSTS:

      #EF_INSTANCE_NAME: default
      #EF_API_PORT: 8080
      #EF_API_TLS_ENABLE: ''
      #EF_API_TLS_CERT_FILEPATH: ''
      #EF_API_TLS_KEY_FILEPATH: ''
      #EF_API_BASIC_AUTH_ENABLE: 'false'
      #EF_API_BASIC_AUTH_USERNAME: ''
      #EF_API_BASIC_AUTH_PASSWORD: ''

      #EF_LOGGER_LEVEL: 'info'
      #EF_LOGGER_ENCODING: 'json'
      #EF_LOGGER_FILE_LOG_ENABLE: 'false'
      #EF_LOGGER_FILE_LOG_FILENAME: '/var/log/elastiflow/flowcoll/flowcoll.log'
      #EF_LOGGER_FILE_LOG_MAX_SIZE: 100
      #EF_LOGGER_FILE_LOG_MAX_AGE: ''
      #EF_LOGGER_FILE_LOG_MAX_BACKUPS: 4
      #EF_LOGGER_FILE_LOG_COMPRESS: 'false'

      #EF_INPUT_SNMP_POLLER_WORKER_POOL_SIZE:  # defaults to the number of CPU threads * 4
      #EF_INPUT_SNMP_POLLER_ERROR_HANDLING: 'partial'
      #EF_INPUT_SNMP_DEVICE_DEFINITIONS_DIRECTORY_PATH: '/etc/elastiflow/snmp/devices'
      #EF_INPUT_SNMP_DEVICE_GROUP_DEFINITIONS_DIRECTORY_PATH: '/etc/elastiflow/snmp/device_groups'
      #EF_INPUT_SNMP_OBJECT_GROUP_DEFINITIONS_DIRECTORY_PATH: '/etc/elastiflow/snmp/object_groups'
      #EF_INPUT_SNMP_OBJECT_DEFINITIONS_DIRECTORY_PATH: '/etc/elastiflow/snmp/objects'
      #EF_INPUT_SNMP_PERSIST_ENABLE: 'true'
      #EF_INPUT_SNMP_PERSIST_DIRECTORY_PATH: '/usr/share/elastiflow/snmpcoll'

      #EF_PROCESSOR_SNMP_ENUM_DEFINITIONS_DIRECTORY_PATH: '/etc/elastiflow/snmp/enums'
      #EF_PROCESSOR_POOL_SIZE:
      #EF_PROCESSOR_TRANSLATE_KEEP_IDS: 'default'

      #EF_PROCESSOR_ENRICH_IPADDR_TTL: 7200

      EF_PROCESSOR_ENRICH_IPADDR_METADATA_ENABLE: 'false'
      #EF_PROCESSOR_ENRICH_IPADDR_METADATA_USERDEF_PATH: '/etc/elastiflow/metadata/ipaddrs.yml'
      #EF_PROCESSOR_ENRICH_IPADDR_METADATA_REFRESH_RATE: 15

      EF_PROCESSOR_ENRICH_IPADDR_DNS_ENABLE: 'false'
      EF_PROCESSOR_ENRICH_IPADDR_DNS_NAMESERVER_IP: ''
      EF_PROCESSOR_ENRICH_IPADDR_DNS_NAMESERVER_TIMEOUT: 3000
      #EF_PROCESSOR_ENRICH_IPADDR_DNS_RESOLVE_PRIVATE: 'true'
      #EF_PROCESSOR_ENRICH_IPADDR_DNS_RESOLVE_PUBLIC: 'true'
      #EF_PROCESSOR_ENRICH_IPADDR_DNS_USERDEF_PATH: '/etc/elastiflow/hostname/user_defined.yml'
      #EF_PROCESSOR_ENRICH_IPADDR_DNS_USERDEF_REFRESH_RATE: 15
      #EF_PROCESSOR_ENRICH_IPADDR_DNS_INCLEXCL_PATH: '/etc/elastiflow/hostname/incl_excl.yml'
      #EF_PROCESSOR_ENRICH_IPADDR_DNS_INCLEXCL_REFRESH_RATE: 15

      #EF_PROCESSOR_DURATION_PRECISION: 'ms'
      #EF_PROCESSOR_TIMESTAMP_PRECISION: 'ms'
      #EF_PROCESSOR_PERCENT_NORM: 100
      #EF_PROCESSOR_KEEP_CPU_TICKS: 'false'

      #EF_PROCESSOR_DROP_FIELDS: ''

      # stdout
      #EF_OUTPUT_STDOUT_ENABLE: 'false'
      #EF_OUTPUT_STDOUT_FORMAT: 'json_pretty'

      # monitor
      #EF_OUTPUT_MONITOR_ENABLE: 'false'
      #EF_OUTPUT_MONITOR_INTERVAL: 300

      # Elasticsearch
      EF_OUTPUT_ELASTICSEARCH_ENABLE: 'false'
      EF_OUTPUT_ELASTICSEARCH_ECS_ENABLE: 'false'
      #EF_OUTPUT_ELASTICSEARCH_BATCH_DEADLINE: 2000
      #EF_OUTPUT_ELASTICSEARCH_BATCH_MAX_BYTES: 8388608
      #EF_OUTPUT_ELASTICSEARCH_TIMESTAMP_SOURCE: 'collect'
      #EF_OUTPUT_ELASTICSEARCH_INDEX_PERIOD: 'rollover'
      #EF_OUTPUT_ELASTICSEARCH_INDEX_SUFFIX: ''
      #EF_OUTPUT_ELASTICSEARCH_DROP_FIELDS: ''
      #EF_OUTPUT_ELASTICSEARCH_ALLOWED_RECORD_TYPES: 'as_path_hop,flow_option,flow,telemetry'

      #EF_OUTPUT_ELASTICSEARCH_INDEX_TEMPLATE_ENABLE: 'true'
      #EF_OUTPUT_ELASTICSEARCH_INDEX_TEMPLATE_OVERWRITE: 'true'
      EF_OUTPUT_ELASTICSEARCH_INDEX_TEMPLATE_SHARDS: 1
      EF_OUTPUT_ELASTICSEARCH_INDEX_TEMPLATE_REPLICAS: 0
      #EF_OUTPUT_ELASTICSEARCH_INDEX_TEMPLATE_REFRESH_INTERVAL: '10s'
      #EF_OUTPUT_ELASTICSEARCH_INDEX_TEMPLATE_CODEC: 'best_compression'
      #EF_OUTPUT_ELASTICSEARCH_INDEX_TEMPLATE_ILM_LIFECYCLE: 'elastiflow'
      #EF_OUTPUT_ELASTICSEARCH_INDEX_TEMPLATE_PIPELINE_DEFAULT: '_none'
      #EF_OUTPUT_ELASTICSEARCH_INDEX_TEMPLATE_PIPELINE_FINAL: '_none'

      # A comma separated list of Elasticsearch nodes to use. DO NOT include "http://" or "https://"
      EF_OUTPUT_ELASTICSEARCH_ADDRESSES: '127.0.0.1:9200'
      EF_OUTPUT_ELASTICSEARCH_USERNAME: 'elastic'
      EF_OUTPUT_ELASTICSEARCH_PASSWORD: 'changeme'
      #EF_OUTPUT_ELASTICSEARCH_CLOUD_ID: ''
      #EF_OUTPUT_ELASTICSEARCH_API_KEY: ''
      #EF_OUTPUT_ELASTICSEARCH_CLIENT_CA_CERT_FILEPATH:
      #EF_OUTPUT_ELASTICSEARCH_CLIENT_CERT_FILEPATH:
      #EF_OUTPUT_ELASTICSEARCH_CLIENT_KEY_FILEPATH:

      EF_OUTPUT_ELASTICSEARCH_TLS_ENABLE: 'false'
      EF_OUTPUT_ELASTICSEARCH_TLS_SKIP_VERIFICATION: 'false'
      EF_OUTPUT_ELASTICSEARCH_TLS_CA_CERT_FILEPATH: ''

      #EF_OUTPUT_ELASTICSEARCH_RETRY_ENABLE: 'true'
      #EF_OUTPUT_ELASTICSEARCH_RETRY_ON_TIMEOUT_ENABLE: 'true'
      #EF_OUTPUT_ELASTICSEARCH_MAX_RETRIES: 3
      #EF_OUTPUT_ELASTICSEARCH_RETRY_BACKOFF: 1000

      # OpenSearch
      EF_OUTPUT_OPENSEARCH_ENABLE: 'false'
      EF_OUTPUT_OPENSEARCH_ECS_ENABLE: 'false'
      #EF_OUTPUT_OPENSEARCH_BATCH_DEADLINE: 2000
      #EF_OUTPUT_OPENSEARCH_BATCH_MAX_BYTES: 8388608
      #EF_OUTPUT_OPENSEARCH_TIMESTAMP_SOURCE: 'collect'
      #EF_OUTPUT_OPENSEARCH_INDEX_PERIOD: 'daily'
      #EF_OUTPUT_OPENSEARCH_INDEX_SUFFIX: ''
      #EF_OUTPUT_OPENSEARCH_DROP_FIELDS: ''
      #EF_OUTPUT_OPENSEARCH_ALLOWED_RECORD_TYPES: 'as_path_hop,flow_option,flow,telemetry'

      #EF_OUTPUT_OPENSEARCH_INDEX_TEMPLATE_ENABLE: 'true'
      #EF_OUTPUT_OPENSEARCH_INDEX_TEMPLATE_OVERWRITE: 'true'
      EF_OUTPUT_OPENSEARCH_INDEX_TEMPLATE_SHARDS: 1
      EF_OUTPUT_OPENSEARCH_INDEX_TEMPLATE_REPLICAS: 0
      #EF_OUTPUT_OPENSEARCH_INDEX_TEMPLATE_REFRESH_INTERVAL: '10s'
      #EF_OUTPUT_OPENSEARCH_INDEX_TEMPLATE_CODEC: 'best_compression'
      #EF_OUTPUT_OPENSEARCH_INDEX_TEMPLATE_ISM_POLICY: 'elastiflow'
      #EF_OUTPUT_OPENSEARCH_INDEX_TEMPLATE_PIPELINE_DEFAULT: '_none'
      #EF_OUTPUT_OPENSEARCH_INDEX_TEMPLATE_PIPELINE_FINAL: '_none'

      # A comma separated list of OpenSearch nodes to use. DO NOT include "http://" or "https://"
      EF_OUTPUT_OPENSEARCH_ADDRESSES: '127.0.0.1:9200'
      EF_OUTPUT_OPENSEARCH_USERNAME: 'elastic'
      EF_OUTPUT_OPENSEARCH_PASSWORD: 'changeme'
      #EF_OUTPUT_OPENSEARCH_CLIENT_CA_CERT_FILEPATH:
      #EF_OUTPUT_OPENSEARCH_CLIENT_CERT_FILEPATH:
      #EF_OUTPUT_OPENSEARCH_CLIENT_KEY_FILEPATH:

      EF_OUTPUT_OPENSEARCH_TLS_ENABLE: 'false'
      EF_OUTPUT_OPENSEARCH_TLS_SKIP_VERIFICATION: 'false'
      EF_OUTPUT_OPENSEARCH_TLS_CA_CERT_FILEPATH: ''

      #EF_OUTPUT_OPENSEARCH_RETRY_ENABLE: 'true'
      #EF_OUTPUT_OPENSEARCH_RETRY_ON_TIMEOUT_ENABLE: 'true'
      #EF_OUTPUT_OPENSEARCH_MAX_RETRIES: 3
      #EF_OUTPUT_OPENSEARCH_RETRY_BACKOFF: 1000

      # Splunk
      EF_OUTPUT_SPLUNK_HEC_ENABLE: 'false'
      #EF_OUTPUT_SPLUNK_HEC_CIM_ENABLE: 'false'
      EF_OUTPUT_SPLUNK_HEC_ADDRESSES: '127.0.0.1:8088'
      EF_OUTPUT_SPLUNK_HEC_TOKEN: ''
      #EF_OUTPUT_SPLUNK_HEC_BATCH_MAX_BYTES: 8388608
      #EF_OUTPUT_SPLUNK_HEC_BATCH_DEADLINE: 2000
      #EF_OUTPUT_SPLUNK_HEC_TLS_ENABLE: 'true'
      #EF_OUTPUT_SPLUNK_HEC_TLS_SKIP_VERIFICATION: 'false'
      #EF_OUTPUT_SPLUNK_HEC_TLS_CA_CERT_FILEPATH: ''
      #EF_OUTPUT_SPLUNK_HEC_DROP_FIELDS: ''

      # Kafka
      EF_OUTPUT_KAFKA_ENABLE: 'false'
      EF_OUTPUT_KAFKA_BROKERS: ''
      #EF_OUTPUT_KAFKA_VERSION: '1.0.0'
      #EF_OUTPUT_KAFKA_TOPIC: 'elastiflow-flow-codex'
      #EF_OUTPUT_KAFKA_PARTITION_KEY: 'flow.export.ip.addr'
      #EF_OUTPUT_KAFKA_CLIENT_ID: 'elastiflow-flowcoll'
      #EF_OUTPUT_KAFKA_RACK_ID: ''
      #EF_OUTPUT_KAFKA_TIMEOUT: 30
      #EF_OUTPUT_KAFKA_DROP_FIELDS: ''
      #EF_OUTPUT_KAFKA_ALLOWED_RECORD_TYPES: 'as_path_hop,flow_option,flow,telemetry'
      #EF_OUTPUT_KAFKA_FLAT_RECORD_ENABLE: 'true'

      EF_OUTPUT_KAFKA_SASL_ENABLE: 'false'
      #EF_OUTPUT_KAFKA_SASL_USERNAME: ''
      #EF_OUTPUT_KAFKA_SASL_PASSWORD: ''

      #EF_OUTPUT_KAFKA_TLS_ENABLE: 'false'
      #EF_OUTPUT_KAFKA_TLS_CA_CERT_FILEPATH: ''
      #EF_OUTPUT_KAFKA_TLS_CERT_FILEPATH: ''
      #EF_OUTPUT_KAFKA_TLS_KEY_FILEPATH: ''
      #EF_OUTPUT_KAFKA_TLS_SKIP_VERIFICATION: 'false'

      #EF_OUTPUT_KAFKA_PRODUCER_MAX_MESSAGE_BYTES: 1000000
      #EF_OUTPUT_KAFKA_PRODUCER_REQUIRED_ACKS: 1
      #EF_OUTPUT_KAFKA_PRODUCER_TIMEOUT: 10
      #EF_OUTPUT_KAFKA_PRODUCER_COMPRESSION: 3
      #EF_OUTPUT_KAFKA_PRODUCER_COMPRESSION_LEVEL: -1000
      #EF_OUTPUT_KAFKA_PRODUCER_FLUSH_BYTES: 1000000
      #EF_OUTPUT_KAFKA_PRODUCER_FLUSH_MESSAGES: 1024
      #EF_OUTPUT_KAFKA_PRODUCER_FLUSH_FREQUENCY: 1000
      #EF_OUTPUT_KAFKA_PRODUCER_FLUSH_MAX_MESSAGES: 0
      #EF_OUTPUT_KAFKA_PRODUCER_RETRY_MAX: 3
      #EF_OUTPUT_KAFKA_PRODUCER_RETRY_BACKOFF: 100

      # Cribl
      EF_OUTPUT_CRIBL_ENABLE: 'false'
      EF_OUTPUT_CRIBL_ADDRESSES: '127.0.0.1:10080'
      EF_OUTPUT_CRIBL_TOKEN: ''
      #EF_OUTPUT_CRIBL_BATCH_DEADLINE: 2000
      #EF_OUTPUT_CRIBL_BATCH_MAX_BYTES: 8388608
      #EF_OUTPUT_CRIBL_TLS_ENABLE: 'false'
      #EF_OUTPUT_CRIBL_TLS_SKIP_VERIFICATION: 'false'
      #EF_OUTPUT_CRIBL_TLS_CA_CERT_FILEPATH: ''
      #EF_OUTPUT_CRIBL_DROP_FIELDS: ''

      # Generic HTTP
      EF_OUTPUT_GENERIC_HTTP_ENABLE: 'false'
      EF_OUTPUT_GENERIC_HTTP_ECS_ENABLE: 'false'
      #EF_OUTPUT_GENERIC_HTTP_BATCH_DEADLINE: 2000
      #EF_OUTPUT_GENERIC_HTTP_BATCH_MAX_BYTES: 8388608
      EF_OUTPUT_GENERIC_HTTP_ADDRESSES: ''
      #EF_OUTPUT_GENERIC_HTTP_USERNAME: ''
      #EF_OUTPUT_GENERIC_HTTP_PASSWORD: ''
      #EF_OUTPUT_GENERIC_HTTP_TLS_ENABLE: 'false'
      #EF_OUTPUT_GENERIC_HTTP_TLS_SKIP_VERIFICATION: 'false'
      #EF_OUTPUT_GENERIC_HTTP_TLS_CA_CERT_FILEPATH: ''
      #EF_OUTPUT_GENERIC_HTTP_DROP_FIELDS: ''
      #EF_OUTPUT_GENERIC_HTTP_TIMESTAMP_SOURCE: 'collect'
</code></pre>

#### image

The name of the current released image is elastiflow/snmp-collector:<code class="expression">space.vars.current\_version</code>.

#### restart

`restart` is set to `unless-stopped` so that the collector will restart automatically if it fails for some reason.

#### volumes

There are a few scenarios where it is necessary to make files on the host file system available to the collector.

In the example above, `/etc/elastiflow` on the host's filesystem is mapped into the same path within the container. It is recommended to place the SNMP poller definition files in `/etc/elastiflow/snmp`.

{% hint style="info" %}
It is also possible to build a new container, adding additional files as needed. This may the best choice if running the container in a dynamically orchestrated environment (e.g. running in Kubernetes). However for an instance dedicated to a specific host, using bind mounted volumes can be very convenient.
{% endhint %}

#### environment variables

NetObserv SNMP is configured using environment variables.

For a complete reference of all configuration options please refer to the [Configuration Reference](/snmpcoll/configuration.md).

#### Running the Container

After completing configuration of the collector in the `docker-compose.yml` file, you can start the container using one of the following commands...

From within the same path as the `docker-compose.yml` file:

```
docker-compose up -d
```

From a path different from the location of the `docker-compose.yml` file:

```
docker-compose -f /PATH/TO/docker-compose.yml up -d
```

To view the logs written by the container run:

```
docker logs -f NAME_OF_CONTAINER
```

To stop the container run:

```
docker-compose down
```

or:

```
docker-compose -f /PATH/TO/docker-compose.yml down
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.elastiflow.com/snmpcoll/installation/install_docker.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.