Add Python module to accomplish OCSF compliant events (#159)

* Adding Python script that receives a continuous json stream over stdin and outputs parquet to Security Lake

* Adding logstash pipeline for python script

* encode_parquet() function fixed to handle lists of dictionaries

* Correct error in encode_parquet()

* Avoid storing the block ending in the output buffer

* Add comments on handling files and streams with pyarrow for future reference

* Add s3 handling reference links

* Write parquet directly to bucket

* Added basics of map_to_ocsf() function

* Minor fixes

* Map alerts to OCSF as they are read

* Add script to convert Wazuh events to OCSF

Also adds a simple test script

* Add OCSF converter + Parquet encoder + test scripts

* Update .gitignore

* Include the contents of the alert under unmapped

* Add support for different OCSF schema versions

* Use custom ocsf module to map alerts

* Modify script to use converter class

* Code polish and fix errors

* Remove unnecessary type declaration from debug flag

* Improved parquet encoding

* Initial commit for test env's docker-compose.yml

* Remove sudo references from docker-compose.yml

* Add operational Python module to transform events to OCSF

* Create minimal Docker environment to test and develop the integration.

* Fix events-generator's Inventory starvation

* Remove files present in #147

* Cleanup

* Add FQDN hostnames to services for certificates creation

* Add S3 Ninja (Mock) (#165)

* Setup certificates in Wazuh Indexer and Logstash containers (#166)

* Add certificate generator service

* Add certificate config to docker compose file

* Use secrets for certificates

* Disable permission handling inside cert's generator entrypoint.sh

* Back to using a bind mount for certs

* Have entrypoint.sh generate certs with 1000:1000 ownership

* Correct certificate permissions and bind mounting

* Add security initialization variable to compose file

* Fix permissions on certs generator entrypoint

* Add cert generator config file

* Remove old cert generator dir

* Set indexer hostname right in pipeline file

* Roll back commented code

---------

Signed-off-by: Álex Ruiz <[email protected]>
Co-authored-by: Álex Ruiz <[email protected]>

* Fix Logstash pipelines

* Remove unused file

* Implement OCSF severity normalize function

---------

Signed-off-by: Álex Ruiz <[email protected]>
Co-authored-by: Fede Tux <[email protected]>
Co-authored-by: Federico Gustavo Galland <[email protected]>

integrations/.gitignore

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+elastic
+opensearch
+splunk
+common
+config
+docker/certs

integrations/README.md

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+## Wazuh indexer integrations
+
+This folder contains integrations with third-party XDR, SIEM and cybersecurity software. 
+The goal is to transport Wazuh's analysis to the platform that suits your needs.
+
+### Amazon Security Lake
+
+Amazon Security Lake automatically centralizes security data from AWS environments, SaaS providers, 
+on premises, and cloud sources into a purpose-built data lake stored in your account. With Security Lake, 
+you can get a more complete understanding of your security data across your entire organization. You can 
+also improve the protection of your workloads, applications, and data. Security Lake has adopted the 
+Open Cybersecurity Schema Framework (OCSF), an open standard. With OCSF support, the service normalizes 
+and combines security data from AWS and a broad range of enterprise security data sources.
+
+##### Usage
+
+A demo of the integration can be started using the content of this folder and Docker.
+
+```console
+docker compose -f ./docker/amazon-security-lake.yml up -d
+```
+
+This docker compose project will bring a *wazuh-indexer* node, a *wazuh-dashboard* node, 
+a *logstash* node and our event generator. On the one hand, the event generator will push events 
+constantly to the indexer. On the other hand, logstash will constantly query for new data and
+deliver it to the integration Python program, also present in that node. Finally, the integration 
+module will prepare and send the data to the Amazon Security Lake's S3 bucket. 
+<!-- TODO continue with S3 credentials setup -->
+
+For production usage, follow the instructions in our documentation page about this matter.
+(_when-its-done_)
+
+As a last note, we would like to point out that we also use this Docker environment for development.
+
+### Other integrations
+
+TBD

integrations/amazon-security-lake/.dockerignore

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+wazuh-event.ocsf.json
+*.parquet
+Dockerfile
+
+# Created by https://www.toptal.com/developers/gitignore/api/python
+# Edit at https://www.toptal.com/developers/gitignore?templates=python
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
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+var/
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+share/python-wheels/
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+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
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+
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+htmlcov/
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+.coverage.*
+.cache
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+coverage.xml
+*.cover
+*.py,cover
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+
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+
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+profile_default/
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+
+# pyenv
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+# End of https://www.toptal.com/developers/gitignore/api/python