ML Pipeline Workflow

Complete end-to-end MLOps pipeline orchestration from data preparation through model deployment.

Overview

This skill provides comprehensive guidance for building production ML pipelines that handle the full lifecycle: data ingestion → preparation → training → validation → deployment → monitoring.

When to Use This Skill

• Building new ML pipelines from scratch
• Designing workflow orchestration for ML systems
• Implementing data → model → deployment automation
• Setting up reproducible training workflows
• Creating DAG-based ML orchestration
• Integrating ML components into production systems

What This Skill Provides

Core Capabilities

1. Pipeline Architecture

   • End-to-end workflow design
   • DAG orchestration patterns (Airflow, Dagster, Kubeflow)
   • Component dependencies and data flow
   • Error handling and retry strategies

2. Data Preparation

   • Data validation and quality checks
   • Feature engineering pipelines
   • Data versioning and lineage
   • Train/validation/test splitting strategies

3. Model Training

   • Training job orchestration
   • Hyperparameter management
   • Experiment tracking integration
   • Distributed training patterns

4. Model Validation

   • Validation frameworks and metrics
   • A/B testing infrastructure
   • Performance regression detection
   • Model comparison workflows

5. Deployment Automation

   • Model serving patterns
   • Canary deployments
   • Blue-green deployment strategies
   • Rollback mechanisms

Reference Documentation

See the references/ directory for detailed guides:

• data-preparation.md - Data cleaning, validation, and feature engineering
• model-training.md - Training workflows and best practices
• model-validation.md - Validation strategies and metrics
• model-deployment.md - Deployment patterns and serving architectures

Assets and Templates

The assets/ directory contains:

• pipeline-dag.yaml.template - DAG template for workflow orchestration
• training-config.yaml - Training configuration template
• validation-checklist.md - Pre-deployment validation checklist

Usage Patterns

Basic Pipeline Setup

# 1. Define pipeline stages
stages = [
    "data_ingestion",
    "data_validation",
    "feature_engineering",
    "model_training",
    "model_validation",
    "model_deployment"
]

# 2. Configure dependencies
# See assets/pipeline-dag.yaml.template for full example

Production Workflow

1. Data Preparation Phase

   • Ingest raw data from sources
   • Run data quality checks
   • Apply feature transformations
   • Version processed datasets

2. Training Phase

   • Load versioned training data
   • Execute training jobs
   • Track experiments and metrics
   • Save trained models

3. Validation Phase

   • Run validation test suite
   • Compare against baseline
   • Generate performance reports
   • Approve for deployment

4. Deployment Phase

   • Package model artifacts
   • Deploy to serving infrastructure
   • Configure monitoring
   • Validate production traffic

Best Practices

Pipeline Design

• Modularity: Each stage should be independently testable
• Idempotency: Re-running stages should be safe
• Observability: Log metrics at every stage
• Versioning: Track data, code, and model versions
• Failure Handling: Implement retry logic and alerting

Data Management

• Use data validation libraries (Great Expectations, TFX)
• Version datasets with DVC or similar tools
• Document feature engineering transformations
• Maintain data lineage tracking

Model Operations

• Separate training and serving infrastructure
• Use model registries (MLflow, Weights & Biases)
• Implement gradual rollouts for new models
• Monitor model performance drift
• Maintain rollback capabilities

Deployment Strategies

• Start with shadow deployments
• Use canary releases for validation
• Implement A/B testing infrastructure
• Set up automated rollback triggers
• Monitor latency and throughput

Integration Points

Orchestration Tools

• Apache Airflow: DAG-based workflow orchestration
• Dagster: Asset-based pipeline orchestration
• Kubeflow Pipelines: Kubernetes-native ML workflows
• Prefect: Modern dataflow automation

Experiment Tracking

• MLflow for experiment tracking and model registry
• Weights & Biases for visualization and collaboration

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