1
Immutable artifact
Promote the same tested build through environments instead of rebuilding different code.
Lesson · Algorithmic and Automated Trading
Deployment, Environments, and Configuration
Build reproducible artifacts, separate development, paper, and live configuration, validate changes, deploy gradually, and roll back without changing trading state unexpectedly.
Core concepts
What to understand
Keep the boundaries, state, and authority explicit.
2
External configuration
Version non-secret strategy and environment settings separately from the binary.
3
Progressive rollout
Use paper, shadow, limited symbols, small size, canary instances, and fast rollback.
Interactive lab
Environment Promotion Lab
Change artifact promotion, configuration validation, canary size, health probes, and rollback behavior. Inject a bad configuration.
Environment Promotion Lab
Deterministic synthetic educational data · no broker or live-market connection
SYSTEM MODEL
Process
Promote one verified change
Code, strategy rules, and configuration should each have an explicit version.
Build
Create and scan one reproducible artifact.
Verify
Run unit, integration, replay, paper, and configuration checks.
Promote
Deploy gradually with health gates, monitoring, and rollback criteria.
Knowledge check
Check your understanding
Select one answer for each question. Feedback appears immediately, and a wrong choice is answered on its own terms before the rule is restated.
1. Why promote the same artifact?
Rebuilding can introduce dependency or source differences after testing.
2. Readiness should become false when:
Unready instances should not receive new work.
3. A canary rollout limits:
Small exposure makes detection and rollback less costly.
4. The canary is 10% of live capital; a bad configuration loses 0.5% of the capital it controls per minute; automatic rollback takes 3 minutes. What does the account lose?
10% × 0.5%/min × 3 min = 0.15% of the account. At 100% scope with a 14-minute manual rollback the same bug costs 7%.
Practical rules
- Version code, strategy, configuration, and schema independently.
- Promote the same immutable artifact.
- Use readiness gates and automatic rollback criteria.
Common mistakes
- Using live credentials in development.
- Editing production parameters without audit.
- Deploying every strategy and symbol simultaneously.
References
Official reading
These sources cover algorithmic controls, market access, broker APIs, system operations, or security.
Docker · Build Best Practices
Official guidance for reproducible, minimal, testable container images and build pipelines.
Kubernetes · Liveness, Readiness, and Startup Probes
Official guidance for detecting unhealthy containers and preventing unready workloads from receiving traffic.