generate-dockerfile

generate-dockerfile is a skill for Claude Code, Codex from Azure/containerization-assist. It costs 90 tokens per session (7,443 once invoked), scanned B, original, MIT.

A Dockerfile generator for packaging one application module into a container. Docker containers bundle an application with the files and runtime it needs to run consistently.

In plain words
What is it for?
Use it to containerize Java, .NET, JavaScript, TypeScript, Python, Go, Rust, PHP, or Ruby modules for production or development.
Why use it?
It helps create a production Dockerfile with suitable base images, dependencies, environment settings, and security practices. It also accounts for the programming language, framework, platform, and existing Docker setup.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/azure/containerization-assist/generate-dockerfile
Any agent
npx skills add Azure/containerization-assist --skill generate-dockerfile
Clone the repo
git clone --depth 1 https://github.com/Azure/containerization-assist

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for generate-dockerfile

README.md
[![agentmods](https://agentmods.dev/badge/skills/azure/containerization-assist/generate-dockerfile.svg)](https://agentmods.dev/skills/azure/containerization-assist/generate-dockerfile)
Your own site
<a href="https://agentmods.dev/skills/azure/containerization-assist/generate-dockerfile"><img src="https://agentmods.dev/badge/skills/azure/containerization-assist/generate-dockerfile.svg" alt="Measured on agentmods" height="20"></a>
Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,443 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00090 $0.07443
Opus 5 $0.00045 $0.03721
Sonnet 5 $0.00018 $0.01489
Haiku 4.5 $0.00009 $0.00744

Measured 4d ago against content hash 70c5818aa210, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

generate-dockerfile scanned grade B with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Recursive force deletemediumDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

`apt-get update && apt-get install -y --no-install-recommends <pkgs> && rm -rf /var/lib/apt/lists/*`.

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Has `curl`: `HEALTHCHECK CMD curl -fsS http://localhost:<port>/health || exit 1`
skills/generate-dockerfile/SKILL.md · 505 lines

How it starts

The opening of the file, as written. The whole thing — 505 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Generate Dockerfile

Produce a production-quality, secure Dockerfile (or enhancement plan for an existing one) for a single module. The output is a complete Dockerfile that the user can write to disk — not a description of one.

Inputs

Field Required Description
modulePath yes Absolute path of the module to containerize (one of the modules from analyze-repo).
language yes java | dotnet | javascript | typescript | python | go | rust | php | ruby.
languageVersion recommended E.g. 21, 8.0, 20, 3.11. Substituted into the base image tag.
framework optional E.g. spring-boot, express, next, django, flask, asp.net-core, gin.
environment optional production (default) or development.
targetPlatform optional linux/amd64 (default) or linux/arm64.
detectedDependencies optional Used to choose extra apt/apk packages (e.g. native modules).
detectedEnvVars optional List from analyze-repo. Used to add ENV instructions for config/database vars and to WARN about secret-classified ones (never bake secrets in).
existingDockerfile optional If a Dockerfile is already at <modulePath>/Dockerfile, read its content and follow the Enhancement path instead of the Generation path.

Prerequisite: analyze-repo

This skill needs language, framework, detectedDependencies, and detectedEnvVars from the analyze-repo skill. If you don't already have that output for <modulePath> from earlier in this conversation, follow the analyze-repo skill against <modulePath> first, then come back.

Decision: generate or enhance?

  1. Check if <modulePath>/Dockerfile exists.
  2. If no → Generation path (Step G1–G4 below).
  3. If yes → read the file, run Dockerfile analysis (Step E1), then Enhancement path (Step E2–E4).

Generation path

G1 — Choose build strategy

Use multi-stage if any of these:

Read the full file on GitHub · 505 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 505 lines · 90 tokens per session scan B 70c5818aa210

Subscribe to this mod's changes

generate-dockerfile is a skill published in the GitHub repository Azure/containerization-assist (41 stars, last pushed 14d ago), licensed MIT. It adds 90 tokens to every session and 7,443 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it B with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

compute-env-setup

Set up a reproducible Feynman compute environment for research jobs. Use when a task needs Python/R packages, GPU libraries, containers, Modal, SSH, caches, or managed model runtime setup.

companion-inc/feynman · 45 tokens

toolset-design

Design and validate new MCP toolsets, tools, and tool changes. Use when planning a new toolset, adding tools to an existing toolset, reviewing a toolset PR, or deciding whether a new tool is warranted. Covers the full lifecycle: eval-first validation, tool design methodology, consolidation patterns, and review…

containers/kubernetes-mcp-server · 69 tokens

nvca-chart-release

Release NVCA Operator chart changes from the native monorepo source to the vendored Helm chart. Use when updating the vendored NVCA Operator chart, changing NVCA image refs, publishing helm-nvca-operator, or validating the chart against a self-managed control plane.

NVIDIA/nvcf · 61 tokens

nvca-values-customization

Customize NVCA Operator Helm chart values in the native monorepo. Use when modifying vendored defaults, changing stack-derived install values, adding deployment-time overrides, or updating scripts under deploy/helm/nvca-operator.

NVIDIA/nvcf · 51 tokens

portainer-mcp-hygiene

How to drive the Portainer MCP server's tools correctly — both reading and mutating. Reading: project responses with select (JMESPath), where the heavy fields live (snapshots, status blocks, managed fields), how to handle non-JSON Docker/K8s proxy endpoints (container and pod logs, stats, exec), and how to interpret…

portainer/portainer-mcp · 315 tokens

node-logs

Retrieve logs from a Kubernetes node — systemd units (journalctl) or files under /var/log. Use when you need node-level evidence: containerd, kubelet, kernel/OOM, or anything the pod's own log cannot show. Three access paths in order: hostscript (SSH), nodescript (debug pod), and localscript against the kubelet log…

scitix/siclaw · 84 tokens