margot

margot is a developer CLI for building and publishing Margo application packages as OCI artifacts. It handles packaging, tagging, and pushing/pulling to any OCI-compliant registry.

Documentation · PyPI

Install

From PyPI

pip install margo-tooling

Or with uv:

uv tool install margo-tooling

Or with pipx:

pipx install margo-tooling

With a container

Every release publishes a container image to GHCR. Mount your project directory into /workspace:

podman run --rm -v "$PWD":/workspace ghcr.io/karnarokepoch/margot:latest --help

Pin to a specific version instead of latest for reproducible builds, e.g. ghcr.io/karnarokepoch/margot:1.0.0.

From source

git clone https://github.com/karnarokEpoch/margot.git
cd margot
uv sync

Usage

$ margot --help

 Usage: margot [OPTIONS] COMMAND [ARGS]...

 Margo application package developer CLI.

╭─ Options ────────────────────────────────────────────────────────────────────╮
│ --version             -V        Print version and exit.                     │
│ --verbose             -v        Enable verbose output (step-level info).     │
│ --debug               -d        Enable debug output (infra-level detail,     │
│                                  implies --verbose).                         │
│ --install-completion            Install completion for the current shell.    │
│ --show-completion                Show completion for the current shell, to  │
│                                  copy it or customize the installation.      │
│ --help                -h        Show this message and exit.                 │
╰────────────────────────────────────────────────────────────────────────────────╯
╭─ Commands ─────────────────────────────────────────────────────────────────────╮
│ fetch     Fetch and display the manifest of an OCI artifact.                  │
│ build     Build Margo application package types locally.                     │
│ push      Push built Margo application artifacts to an OCI registry.         │
│ pull      Pull OCI artifact layers to a local directory.                     │
│ verify    Validate the Margo application description against the Margo spec │
│           schema.                                                            │
│ describe  Describe a Margo application description in rich, structured      │
│           output.                                                           │
│ auth      Manage OCI registry credentials.                                  │
╰────────────────────────────────────────────────────────────────────────────────╯

A minimal project

A Margo project is described by a margo.yaml file at the project root:

nginx-helm/
├── margo.yaml
└── margo/
    └── app.yaml.jinja

# margo.yaml
apiVersion: v1
id: com-example-nginx
name: nginx
version: "1.0.0"
appVersion: "1.27.0"
description: "NGINX web server deployed via Helm chart"
repository: public.ecr.aws/g2n4p2m7/margo

Validate the application description

margot verify

Validates app.yaml (or app.yaml.jinja, rendered on the fly) against the upstream Margo spec schema — no network access, no prior build required.

Inspect it visually

margot describe

Renders the descriptor as structured panels and trees: identity, deployment profiles, configuration (settings, schemas, parameters), and extensions.

Build and push

margot build
margot push

build renders the descriptor and stages it under build_dir. push publishes the artifact via ORAS to the registry declared in margo.yaml, tagged with version:

public.ecr.aws/g2n4p2m7/margo:1.0.0

Log in first if the registry requires auth:

margot auth login

Pull and inspect a published artifact

margot pull public.ecr.aws/g2n4p2m7/margo:1.0.0 --output ./out
margot fetch public.ecr.aws/g2n4p2m7/margo:1.0.0

pull writes the artifact's layers to disk as-is (no extraction). fetch prints the raw manifest JSON for a quick remote inspection, without pulling anything.

Shell completion

Enable shell tab completion for margot commands and flags:

# Quick setup — appends to your shell's rc file directly
margot --install-completion

# Manual setup — prints the script; redirect it wherever you source completions from
margot --show-completion bash > ~/.local/share/bash-completion/completions/margot

Both methods require a shell restart or re-sourcing the rc file to take effect. --show-completion takes a shell argument (bash, zsh, fish, powershell, or pwsh) and prints the completion script to stdout.

--install-completion has no --path option — it always appends to the shell's default rc file (e.g. ~/.bashrc). If you curate your own rc includes rather than a raw rc append, use --show-completion instead and redirect the output to your preferred location.

Learn more

• Documentation — full command reference, margo.yaml reference, and worked examples (Helm, Compose, Quadlet, multi-component).
• FEATURES.md — authoritative spec: architecture, commands, OCI media types, config, error handling.
• CONTRIBUTING.md — development setup, testing, release process.
• CODE_OF_CONDUCT.md — community standards.

License

Apache License 2.0