The frontend CI job started to fail for some obscure reasons, most
probably because we use a very old version of NodeJS.
To make it work again, this change does the following:
* Bump to the latest NodeJS LTS version and use the buster variant.
* Use Yarn instead of npm to install Javascript packages.
* Bump Elm components to their latest versions.
There should be no functional change to the UI code.
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
This patch makes the Alertmanager UI (/status & /silences) use the
api/v2 endpoint. In addition it adds logic to generate the elm side data
model based on the OpenAPI specification.
Signed-off-by: Max Leonard Inden <IndenML@gmail.com>
