Software Templates

What is a software template?

Software template provide pre-built, standardized structures for common types of applications. This allows developers to:

• Quickly start new projects without building the basic architecture from scratch
• Ensure consistency across multiple projects
• Follow best practices and proven patterns built into the template
• Focus on implementing specific business logic rather than generic boilerplate code

This efficiency can significantly reduce development time, especially for common application types, allowing teams to deliver projects faster and with more consistency.

CECG Software Templates

CECG provides software templates that integrate the entire P2P lifecycle, offering a significant advantage in application development.

These templates:

• Incorporate the full P2P process out-of-the-box
• Include built-in deployment pipelines with gated stages
• Enable developers to start from zero and rapidly create a functional application

You can find the templates in the CECG Software Templates repository 

The monitoring-stack template creates a dedicated monitoring delivery unit for teams that need one shared Prometheus, Grafana, and Alertmanager stack across multiple delivery units. See Shared Monitoring Stack For Multiple Delivery Units for the setup flow and required app-side configuration.

Find templates in the dashboard

Open the dashboard and go to Templates to browse the templates that can be used to create applications and infrastructure delivery units.

Use the filters to narrow the list by kind:

• Application templates create application repositories with Path to Production defaults.
• Infrastructure templates create delivery units for infrastructure such as Cloud SQL, Kafka, Tofu, or URL routing.

The same application templates are also available during the dashboard Create Application wizard.

Integration via corectl

Corectl leverages the templates to create a new project via corectl app create command.

To ease authoring of a new software template there is a command corectl template render that will render a template into a new directory.

Parameters

Software templates can be parameterized to allow for customization of the template.

There are 2 types of parameters:

1. Custom parameters defined in the template.yaml file
2. Implicit parameters set by corectl when creating a new application

Custom parameters

Custom parameters are defined in the template.yaml file.

They are defined in the parameters section of the file.

For example:

parameters:
  - name: appName
    description: Name of the application
    type: string
    optional: true
    default: my-app

When rendering a template corectl will prompt user for the values of the parameters.

Implicit parameters

Implicit parameters are set by corectl when creating a new application.

At the moment, there are 4 implicit parameters:

- name: name
  description: application name
  optional: false
 
- name: tenant
  description: tenant used to deploy the application
  optional: false
 
- name: working_directory
  description: working directory where application is located
  optional: false
  default: "./"
 
- name: version_prefix
  description: version prefix for application
  optional: false
  default: "v"

• name is the name of the application
• tenant is the tenant used to deploy the application