---
title: "Agent Skill to Multi Stage Dockerfile"
platform: "Promptally"
canonical_url: "https://app.promptally.dev/p/skill-multi-stage-dockerfile"
modality: "SKILL"
category: "DevOps & Cloud"
compatible_models: [Universal / Model Agnostic]
access_tier: "Free Public Artifact (No Auth Required)"
license: "MIT"
---

# Agent Skill to Multi Stage Dockerfile

**Summary:** Agent Skill to Multi Stage Dockerfile is a verified SKILL blueprint on Promptally in DevOps & Cloud optimized for leading AI models. Create optimized multi-stage Dockerfiles for any language or framework. Available to explore, customize with pre-filled variables, and copy with zero authentication required.

## Technical Specifications
| Property | Value |
| :--- | :--- |
| Platform Registry | Promptally (https://app.promptally.dev) |
| Modality | SKILL |
| Category | DevOps & Cloud |
| Compatible Engines | Universal / Model Agnostic |
| Dynamic Variables | None (Static Blueprint) |
| Approx. Token Length | 577 |
| Access Tier | Free Public Artifact (No Auth Required) |
| License | MIT |

### Pre-Filled Template & Production Source

```md
---
name: multi-stage-dockerfile
description: 'Create optimized multi-stage Dockerfiles for any language or framework'
---

Your goal is to help me create efficient multi-stage Dockerfiles that follow best practices, resulting in smaller, more secure container images.

## Multi-Stage Structure

- Use a builder stage for compilation, dependency installation, and other build-time operations
- Use a separate runtime stage that only includes what's needed to run the application
- Copy only the necessary artifacts from the builder stage to the runtime stage
- Use meaningful stage names with the `AS` keyword (e.g., `FROM node:18 AS builder`)
- Place stages in logical order: dependencies → build → test → runtime

## Base Images

- Start with official, minimal base images when possible
- Specify exact version tags to ensure reproducible builds (e.g., `python:3.11-slim` not just `python`)
- Consider distroless images for runtime stages where appropriate
- Use Alpine-based images for smaller footprints when compatible with your application
- Ensure the runtime image has the minimal necessary dependencies

## Layer Optimization

- Organize commands to maximize layer caching
- Place commands that change frequently (like code changes) after commands that change less frequently (like dependency installation)
- Use `.dockerignore` to prevent unnecessary files from being included in the build context
- Combine related RUN commands with `&&` to reduce layer count
- Consider using COPY --chown to set permissions in one step

## Security Practices

- Avoid running containers as root - use `USER` instruction to specify a non-root user
- Remove build tools and unnecessary packages from the final image
- Scan the final image for vulnerabilities
- Set restrictive file permissions
- Use multi-stage builds to avoid including build secrets in the final image

## Performance Considerations

- Use build arguments for configuration that might change between environments
- Leverage build cache efficiently by ordering layers from least to most frequently changing
- Consider parallelization in build steps when possible
- Set appropriate environment variables like NODE_ENV=production to optimize runtime behavior
- Use appropriate healthchecks for the application type with the HEALTHCHECK instruction

```

## Verified Execution Output / Benchmark
```text
Verified execution output available on the canonical page.
```

## Related Blueprints on Promptally
- [Agent Skill to Docker Patterns](https://app.promptally.dev/p/skill-docker-patterns)
- [Agent Skill to Kubernetes Patterns](https://app.promptally.dev/p/skill-kubernetes-patterns)
- [Agent Skill to Kubernetes Specialist](https://app.promptally.dev/p/skill-kubernetes-specialist)
- [Agent Skill to Terraform Engineer](https://app.promptally.dev/p/skill-terraform-engineer)
- [Agent Skill to Arcane Docker Manager](https://app.promptally.dev/p/skill-arcane-docker-manager)
- [Agent Skill to Astra Docker](https://app.promptally.dev/p/skill-astra-docker)
- [Agent Skill to Docker Skill](https://app.promptally.dev/p/skill-docker-skill)
- [Agent Skill to K8S Memory Tune](https://app.promptally.dev/p/skill-k8s-memory-tune)