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ElastAlert Server

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A server that runs ElastAlert 2 and exposes REST API's for manipulating rules and alerts. It works great in combination with our ElastAlert Kibana plugin.

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Installation

The most convenient way to run the ElastAlert server is by using our Docker container image. The default configuration uses localhost:9200 as ElasticSearch host, if this is not the case in your setup please edit es_host and es_port in both the elastalert.yaml and config.json configuration files.

To run the Docker image you will want to mount the volumes for configuration and rule files to keep them after container updates. In order to do that conveniently, please do: git clone https://github.com/johnsusek/elastalert-server.git && cd elastalert-server

docker run -d -p 3030:3030 -p 3333:3333 \
    -v `pwd`/config/elastalert.yaml:/opt/elastalert/config.yaml \
    -v `pwd`/config/config.json:/opt/elastalert-server/config/config.json \
    -v `pwd`/rules:/opt/elastalert/rules \
    -v `pwd`/rule_templates:/opt/elastalert/rule_templates \
    --net="host" \
    --name elastalert praecoapp/elastalert-server:latest

Building Docker image

Clone the repository

git clone https://github.com/johnsusek/elastalert-server.git && cd elastalert-server

Build the image

make build

which is equivalent of

docker pull python:3.12-alpine3.20 && docker pull node:20.16-alpine3.20
docker build -t elastalert-server .

Options

Using a custom ElastAlert 2 version (a release from github)

make build v=2.3.0

Using a custom mirror

docker build --build-arg ELASTALERT_URL=http://example.mirror.com/master.zip -t elastalert-server .

Configuration

In config/config.example.json you'll find the default config. You can make a config.json file in the same folder that overrides the default config. When forking this repository it is recommended to remove config.json from the .gitignore file. For local testing purposes you can then use a config.dev.json file which overrides config.json.

You can use the following config options:

{
  "appName": "elastalert-server", // The name used by the logging framework.
  "port": 3030, // The port to bind to
  "wsport": 3333, // The port to bind to for websockets
  "elastalertPath": "/opt/elastalert",  // The path to the root ElastAlert 2 folder. It's the folder that contains the `setup.py` script.
  "start": "2014-01-01T00:00:00", // Optional date to start querying from
  "end": "2016-01-01T00:00:00", // Optional date to stop querying at
  "verbose": true, // Optional, will increase the logging verboseness, which allows you to see information about the state of queries.
  "es_debug": true, // Optional, will enable logging for all queries made to Elasticsearch
  "debug": false, // Will run ElastAlert 2 in debug mode. This will increase the logging verboseness, change all alerts to DebugAlerter, which prints alerts and suppresses their normal action, and skips writing search and alert metadata back to Elasticsearch.
  "rulesPath": { // The path to the rules folder containing all the rules. If the folder is empty a dummy file will be created to allow ElastAlert 2 to start.
    "relative": true, // Whether to use a path relative to the `elastalertPath` folder.
    "path": "/rules" // The path to the rules folder. 
  },
  "templatesPath": { // The path to the rules folder containing all the rule templates. If the folder is empty a dummy file will be created to allow ElastAlert 2 to start.
    "relative": true, // Whether to use a path relative to the `elastalertPath` folder.
    "path": "/rule_templates" // The path to the rule templates folder.
  },
  "dataPath": { // The path to a folder that the server can use to store data and temporary files.
    "relative": true, // Whether to use a path relative to the `elastalertPath` folder.
    "path": "/server_data" // The path to the data folder.
  },
  "es_host": "localhost", // For getting metadata and field mappings, connect to this ES server
  "es_port": 9200, // Port for above
  "es_username": "", // Option basic-auth username and password for Elasticsearch
  "es_password": "", // Option basic-auth username and password for Elasticsearch
  "opensearch_flg": false, // OpenSearch Flg (OpenSearch 1.x or Elasticsearch-OSS is true)
  "opensearch2_flg": false, // OpenSearch 2 Flg (OpenSearch 2.x is true)
  "es_ssl": true, // Enable/Disable SSL
  "ea_verify_certs": true, //  Verify TLS certificates. false for self-signed certificate
  "es_ca_certs": "/etc/ssl/elasticsearch/ca", // Path to ca for ElasticSearch (SSL must be enabled)
  "es_client_cert": "/etc/ssl/elasticsearch/cert", // Path to cert for ElasticSearch (SSL must be enabled)
  "es_client_key": "/etc/ssl/elasticsearch/key", // Path to key for ElasticSearch (SSL must be enabled)
  "writeback_index": "elastalert_status", // Writeback index to examine for /metadata endpoint
  "prometheus_port": 9979 // Port for Prometheus
}

ElastAlert 2 also expects a elastalert.yaml with at least the following options.

# The elasticsearch hostname for metadata writeback
# Note that every rule can have its own elasticsearch host
es_host: localhost

# The elasticsearch port
es_port: 9200

# The index on es_host which is used for metadata storage
# This can be a unmapped index, but it is recommended that you run
# elastalert-create-index to set a mapping
writeback_index: elastalert_status

# This is the folder that contains the rule yaml files
# Any .yaml file will be loaded as a rule
rules_folder: rules

# How often ElastAlert 2 will query elasticsearch
# The unit can be anything from weeks to seconds
run_every:
  seconds: 5

# ElastAlert 2 will buffer results from the most recent
# period of time, in case some log sources are not in real time
buffer_time:
  minutes: 1

API

This server exposes the following REST API's:

Contributing

Want to contribute to this project? Great! Please read our contributing guidelines before submitting an issue or a pull request.

We only accept pull requests on our GitHub repository!

Contact

We'd love to help you if you have any questions. You can contact us by using the contact info on our website.

License

This project is BSD Licensed with some modifications. Note that this only accounts for the ElastAlert Server, not ElastAlert 2 itself (ElastAlert 2 License).

Copyright

This project is fork of bitsensor/elastalert Copyright © 2019, BitSensor B.V.

We do not have any rights over the original ElastAlert 2 project from jertel. We do not own any trademarks or copyright to the name "ElastAlert 2" (ElastAlert 2, however, does because of their Apache 2 license). We do own copyright over the source code of this project, as stated in our BSD license, which means the copyright notice below and as stated in the BSD license should be included in (merged / changed) distributions of this project.