How to ingest data into Elasticsearch using Beats?

Here are the high-level steps to ingest data into Elasticsearch using Beats:

1. Install and configure Beats: Download and install the appropriate Beats package for the data source you want to ingest. Configure Beats by updating the configuration file with the necessary settings, such as the Elasticsearch output destination.

2. Start Beats: Start Beats using the command line or service manager. Beats will begin collecting data from the configured data source and sending it to Elasticsearch.

3. Verify data ingestion: Monitor Elasticsearch to ensure that data is being ingested correctly. You can use the Elasticsearch APIs or Kibana to view ingestion statistics and troubleshoot any issues.

Here is an example configuration file for Filebeat, which is used to collect and ship log files to Elasticsearch:

filebeat.inputs:
- type: log
  paths:
    - /var/log/messages

output.elasticsearch:
  hosts: ["localhost:9200"]
  index: "logs-%{+yyyy.MM.dd}"

This configuration file tells Filebeat to collect log files from the `/var/log/messages` directory and ship them to Elasticsearch. The output.elasticsearch section specifies the Elasticsearch output destination and sets the index name to include the date in the format `logs-YYYY.MM.dd`.

Overall, Beats provides a lightweight and efficient way to collect and ship data to Elasticsearch, and can be used to handle a wide range of data sources and formats.