Deploy your operator

First add those 2 fields to GreetingSpec.java

    private String color;
    private String greeting;

    public String getColor() {
        return color;
    }
    public void setColor(String color) {
        this.color = color;
    }
    public String getGreeting() {
        return greeting;
    }
    public void setGreeting(String greeting) {
        this.greeting = greeting;
    }

Start your project in dev mode : mvn quarkus:dev

Make sure you CRD got installed on the cluster : kubectl get crds | grep "devnation"

Something like this should be outputed :

greetings.devnation.redhat.com                              2022-10-02T08:41:54Z