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 <alejandro.ruiz.becerra@wazuh.com>
Co-authored-by: Álex Ruiz <alejandro.ruiz.becerra@wazuh.com>

* Fix Logstash pipelines

* Remove unused file

* Implement OCSF severity normalize function

---------

Signed-off-by: Álex Ruiz <alejandro.ruiz.becerra@wazuh.com>
Co-authored-by: Fede Tux <federico.galland@wazuh.com>
Co-authored-by: Federico Gustavo Galland <99492720+f-galland@users.noreply.github.com>

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
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.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
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
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+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
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+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
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+
+# Jupyter Notebook
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+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
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+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
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+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
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+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
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+
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+venv/
+ENV/
+env.bak/
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+
+# mkdocs documentation
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+
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+.dmypy.json
+dmypy.json
+
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+
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+
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+pyrightconfig.json
+
+# End of https://www.toptal.com/developers/gitignore/api/python