Allow to provide custom settings.xml

[lburgazzoli]

So now you can configure maven by providing a custom settings.xml from a configmap/secret:

apiVersion: camel.apache.org/v1alpha1
kind: IntegrationPlatform
metadata:
  labels:
    app: camel-k
  name: camel-k
spec:
  build:
    maven:
      settings:
        configMapKeyRef:
          key: s.xml
          name: maven-settings

NOTE: the possibility to set maven repositories has been removed from both platform and integration so the only option to configure maven is through the platform itself.

Fixes #715
Fixes #706

[astefanutti]

Some nitpicking :)

[astefanutti]

CaonfigMap -> ConfigMap

[astefanutti]

settigns.xml -> settings.xml

[astefanutti]

maven -> Maven

[astefanutti]

cli -> CLI

[lburgazzoli]

Some nitpicking :)

oh man, how may typos was I able to make in 10 lines ?

[nicolaferraro]

I love the idea of the configmap/secret to set the maven settings. But I'd prefer keeping the --repository flag because it's handy and I've used it in many installations/quickstarts and I wanted to use it for linking camel k to the staging repo when releasing.

I was thinking of keeping the --repositories as shortcut, alternative to maven settings (cannot be used together, for simplicity). Under the hood, it can even generate a simple settings.xml in a configmap if this simplifies code. Wdyt?

[lburgazzoli]

We can add some short-cuts on kamel install so the xml is automatically created, could that work ?

[nicolaferraro]

Yeah, that's what I meant ;)

[lburgazzoli]

reworking it