A sample CI workflow using a Java Dagger module

This application is a simple echo server that listens on port 8080 and returns the request path as the response.

Install Dagger

See https://docs.dagger.io/install to install Dagger.

Run the CI module

List the CI tasks

$ dagger functions

Run the unit tests

$ dagger call test --source=.

Build and Package the application

$ dagger call build --source=.

Run the service on your local workstation

$ dagger call dev --source=. up --ports 8080:8080
...
$ curl http://localhost:8080/hello-world/
Echo: /hello-world/

Publish the service image to ttl.sh registry

$ dagger call publish --source=.
...
ttl.sh/echo-server:1h@sha256:3e85eb...
...
$ # Test the published image
$ docker run --rm -p 8080:8080 --pull=always ttl.sh/echo-server:1h