Added directory for custom artifacts

[j-schmied]

Hello,

the current version of the docker image does not allow to include custom artifacts at startup. This pull request adds the capability to do so. For example, in docker-compose.yaml, you could now add

volumes:
  [...]
  - ${VELOX_CUSTOM_ARTIFACTS_DIR}:/velociraptor/artifacts

Referencing

VELOX_CUSTOM_ARTIFACTS_DIR=/path/to/custom/artifacts

in .env.

Best regards,
Jannik

[weslambert]

Thanks! I still need to test it. Does it work if a directory is not created that matches the bind mount?

[j-schmied]

To my knowledge, docker creates the directory if it does not exist. However, permissions might be messed up in this case as default permission will be applied