Dagger Go Example App

This is a simple example application written in Go and a mock test to go along with it. The application makes a request to https://icanhazdadjoke.com which returns a random dad joke and prints it to the terminal.

Packaging the application is done with Dagger, GoReleaser, and the pipeline executed in Github Actions on these events; pull_request, push [tags].

The Dagger Pipeline accepts one of two arguments which in turn execute the corresponding task. Below is the flow diagram of the Dagger Pipeline.

flowchart
1[Github Action Event] --> 2[Checkout]-->3[Install Go]-->4[Execute Dagger Pipeline]-->A
subgraph Dagger Pipeline
    A[Input] -->|validate| B[Start Dagger Engine]-->C{Switch Command}
    C --> D[Test]
    C --> E[GoReleaser]

    subgraph pull-request
    D --> D1[Build]
    D1 -->D2{is_local}-->D3[Export]
    end

    subgraph release
    E
    end

    D1 --> K
    D3 --> K
    E --> K
    K[Output]
end

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Usage

• clone the repository, or fork your own copy
• create a new branch off main
• make your changes
• commit and push your changes to the remote repository
• creating a pull request against main will trigger the pull-request command
• merge the pull request
• creating a new tag and pushing it to the remote repository will trigger the release command
• review your release and publish it when ready

Local Testing

• clone the repository, or fork your own copy
• create a new branch off main
• make your changes and commit them
• run go run ./ci/dagger.go --local pull-request to execute the pull-request command locally
• test the binaries in the dist directory

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Todo

• implement conventional commit validation on every push to the repo.
• implement vulnerability scanning in pull-request command against the SBOMs generated by goreleaser
• implement a automated version bumping on release command using go-sematic-release and goreleaser
• create library package of commands and components to be used in other Dagger Pipelines