leto-modelizer-templates-library

Library that contains all default templates for leto-modelizer.

Create a template

1. Create the metadata of your templates in the index.json:

metadata structure for model template:

{
    "key": "terraform_webapp",
    "name": "Web application",
    "plugin": "terrator-plugin",
    "type": "model",
    "description": "Schema of web application.",
    "url": null,
    "files": ["main.tf"]
}

metadata structure for component template:

{
    "key": "terraform_webapp",
    "name": "Web application",
    "plugin": "terrator-plugin",
    "type": "component",
    "description": "Schema of web application.",
    "url": null,
    "files": ["main.tf"]
}

metadata structure for project template:

{
    "key": "terraform_webapp",
    "name": "Web application",
    "plugins": ["terrator-plugin"],
    "type": "project",
    "description": "Schema of web application.",
    "url": null,
    "schemas": ["plugin1/model1/schema.svg", "plugin1/model2/schema.svg", "plugin2/model3/schema.svg"],
    "files": ["plugin1/model1/main.js", "plugin1/model2/main.js", "plugin2/model3/app.js"]
}

• key attribute is the folder name of your template under the templates folder.
• name attribute is the display name used in leto-modelizer.
• plugin attribute is the plugin name used by the template. Only for model and component templates.
• plugins attribute is all plugin names used by the template. Only for project templates.
• type attribute is the template type, either model, component or project.
• description attribute is the description used in leto-modelizer to explain the usage of this template.
• url attribute is an url attached to a documentation of this template used in leto-modelizer.
• schemas attribute is the list of schemas of this project. Same as files, only for project template.
• files attribute is the list of files used in the template.

2. Create the folder of your template with the chosen key you provided in the index.json
3. Create all the files (you) mentioned in this folder with the code of your template
4. (Optional) Provide an icon for your template (only icon.svg will be used by leto-modelizer)
5. (Optional) Provide a schema for your template (only schema.svg will be used by leto-modelizer)

Notes

Component position

If you want to specify the position of the component(s) of your template, you need to do it in the file 'leto-modelizer.config.json'. The content will specify the name of the plugin(s), the component(s) associated and their position attributes.

{
  "terrator-plugin": {
    "eu-west-3a": {
      "x": 154.099609375,
      "y": -6.573709487915039,
      "width": 110,
      "height": 80,
      "needsResizing": false,
      "needsPositioning": false
    }
  }
}

The content of this file will be added to the project config file like this:

{
  "modelName": {
    "terrator-plugin": {
      "eu-west-3a": {
        "x": 154.099609375,
        "y": -6.573709487915039,
        "width": 110,
        "height": 80,
        "needsResizing": false,
        "needsPositioning": false
      }
    }
  }
}

Don't forget to add 'leto-modelizer.config.json' in the attribute 'files' of you template in 'index.json'.

Component template

When you create component template, you must use a function to generate id(s).

To do that you can use this in your template:

# app.tf
resource "server" "{{ generateId('resource_')}}" {
  (...)
}

By default, function generateId generate an id like XXXXXX. You can improve the id with a prefix parameter.

The previous example will generate:

# app.tf
resource "server" "resource_123456" {
  (...)
}

For more information, see nunjucks.

Project template

When you create project template, you need to specify all plugins the template will use. You have to add models with the list of models for your project. If you want to use existing models, you need to copy them in your project template folder.

Example of metadata structure for project template with 2 plugins and 3 models:

{
    "key": "example_project",
    "name": "Example project",
    "plugins": ["terrator-plugin", "githubator-plugin"],
    "type": "project",
    "description": "Example project with multiple plugins and models.",
    "url": null,
    "schemas": ["plugin1/model1/schema.svg", "plugin1/model2/schema.svg", "plugin2/model3/schema.svg"],
    "files": ["plugin1/model1/main.js", "plugin1/model2/main.js", "plugin2/model3/app.js"]
}

• Provide an icon for your template at the root folder (only icon.svg will be used by leto-modelizer)
• Provide a schema for each of your model (only schema.svg will be used by leto-modelizer)