Project structure

What is it inside Legion?

Core:

Python 3.6, Golang – as main development languages
Kubernetes – as runtime platform
Docker – as containerization engine for runtime platform
FluentD – as logging aggregator for feedback loop
Operator - as handler of Legion's custom resources
EDGE – as model API traffic manager
EDI – model manager
Toolchains - APIs for adding to ML Legion capabilities

Optional:

Airflow – as optional ETL engine

Repositories structure

Legion

Project Legion locates in GitHub Repository legion-platform/legion and contains of next items:

Legion application - several Docker images:
- EDI
- FluentD
- Toolchain application
HELM packages:
- legion-core HELM chart
- legion HELM chart
Legion Python source codes
Operator

Legion's repository directory structure

containers - all Legion components that are distributed as docker images.
docs - documentation that describes Legion platform, architecture, usage and etc.
helms - Legion Helm packages (distribution packages for Kubernetes).
legion - source code of Legion python packages.
scripts - utility scripts for CI/CD process.

Infra-specific repositories

For deploying purposes there are platform-specific repositories that contains platform-specific deploying logic.

Legion Infrastructure locates in GitHub Repository legion-platform/legion-infrastructure and contains:

Terraform modules
Jenkins pipelines for Jenkins CI/CD jobs
Infrastructure specific containers:
- Terraform modules

Additional integrations repositories