jujusvg

A library for generating SVGs from Juju bundles and environments.

Installation

To start using jujusvg, first ensure you have a valid Go environment, then run the following:

go get gopkg.in/juju/jujusvg.v2

Dependencies

The project uses godeps (https://launchpad.net/godeps) to manage Go dependencies. To install this, run:

go get github.com/rogpeppe/godeps

After installing it, you can update the dependencies to the revision specified in the dependencies.tsv file with the following:

make deps

Use make create-deps to update the dependencies file.

Usage

Given a Juju bundle, you can convert this to an SVG programatically. This generates a simple SVG representation of a bundle or bundles that can then be included in a webpage as a visualization.

For an example of how to use this library, please see examples/generatesvg.go. You can run this example like:

go run generatesvg.go bundle.yaml > bundle.svg

The examples directory also includes three sample bundles that you can play around with, or you can use the Juju GUI to generate your own bundles.

Design-related assets

Some assets are specified based on assets provided by the design team. These assets are specified in the defs section of the generated SVG, and can thus be found in the Canvas.definition() method. These assets are, except where indicated, embedded in a go file assigned to an exported variable, so that they may be used like so:

import (
	"io"

	"gopkg.in/juju/jujusvg.v2/assets"
)

// ...

io.WriteString(canvas.Writer, assets.AssetToWrite)

Current assets in use:

• The service block the service block has been deprecated and is now handled with SVGo
• The relation health indicator