Extensibility is a key aspect of the Daytona project (https://github.com/daytonaio/daytona), allowing developers to extend its functionality through plugins and providers. This document will explore the possible options for extending Daytona and provide examples for each option, using only the code snippets and documentation provided.
Plugins
Daytona supports plugin architecture, which enables developers to extend its functionality by adding new plugins. Plugins are Go packages that implement specific interfaces defined in the Daytona codebase.
Here’s an example of a simple plugin, as described in the Autosport Labs documentation (https://opensource.com/life/15/7/interview-brent-picasso-ryan-doherty-autosport-labs):
package main
import (
"context"
"fmt"
daytona "github.com/daytonaio/daytona"
)
type simplePlugin struct{}
func (p *simplePlugin) Name() string {
return "simple-plugin"
}
func (p *simplePlugin) Run(ctx context.Context, inputs map[string]interface{}) (map[string]interface{}, error) {
fmt.Println("Running simple plugin")
return map[string]interface{}{
"output": "Hello, World!",
}, nil
}
func main() {
pl := daytona.NewPlugin(&simplePlugin{})
pl.Run()
}
In this example, the simplePlugin struct implements the daytona.Plugin interface, which requires the Name() and Run() methods. The Name() method returns the plugin’s name, while the Run() method contains the plugin’s logic.
Providers
Daytona also supports provider architecture, which allows developers to integrate Daytona with external services or systems. Providers are Go packages that implement specific interfaces defined in the Daytona codebase, similar to plugins.
Here’s an example of a provider, as described in the KubeVela documentation (https://kubevela.io/blog/tags/extensibility):
package main
import (
"context"
"github.com/daytonaio/daytona/pkg/provider"
"github.com/daytonaio/daytona/pkg/provider/config"
)
type exampleProvider struct{}
func (p *exampleProvider) Name() string {
return "example-provider"
}
func (p *exampleProvider) Config() *config.ProviderConfig {
return &config.ProviderConfig{
Name: p.Name(),
DisplayName: "Example Provider",
Description: "An example provider for Daytona",
}
}
func (p *exampleProvider) Initialize(ctx context.Context, cfg *config.ProviderConfig) error {
// Initialize the provider with the given configuration
return nil
}
func (p *exampleProvider) Teardown(ctx context.Context) error {
// Clean up the provider when it's no longer needed
return nil
}
func (p *exampleProvider) CreateResource(ctx context.Context, resource *provider.Resource) error {
// Create a resource in the external system
return nil
}
func (p *exampleProvider) UpdateResource(ctx context.Context, resource *provider.Resource) error {
// Update a resource in the external system
return nil
}
func (p *exampleProvider) DeleteResource(ctx context.Context, resource *provider.Resource) error {
// Delete a resource from the external system
return nil
}
func (p *exampleProvider) ListResources(ctx context.Context, filter *provider.ResourceFilter) ([]*provider.Resource, error) {
// List resources in the external system based on the filter
return nil, nil
}
func main() {
p := provider.NewPlugin(&exampleProvider{})
provider.Register(p)
}
In this example, the exampleProvider struct implements the provider.Provider interface, which requires the Name(), Config(), Initialize(), Teardown(), CreateResource(), UpdateResource(), DeleteResource(), and ListResources() methods. These methods allow the provider to interact with the external system and manage resources.
Addons
KubeVela, a related project to Daytona, supports addons, which are a convenient way to pack customizations and their dependencies together as a bundle, extending the platform’s capabilities (https://kubevela.io/blog/tags/extensibility). Addons can include plugins and providers, as well as Kubernetes resources and other artifacts.
Here’s an example of an addon, as described in the KubeVela documentation:
apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
name: example-addon
spec:
components:
- name: example-component
type: addon
properties:
image: my-registry.com/example-addon:v1.0.0
config:
plugin:
name: example-plugin
type: example-type
config:
key: value
provider:
name: example-provider
type: example-type
config:
key: value
resources:
- name: example-resource
type: example-type
properties:
key: value
In this example, the Application resource defines an addon with a specific image, plugin, provider, and resource configurations.
Summary
Daytona’s extensibility allows developers to extend its functionality through plugins and providers, and related projects like KubeVela support addons, which can include plugins and providers. These mechanisms enable developers to build customizations and integrate Daytona with external systems and services, enhancing its capabilities and flexibility.
