Crashes if the API server is unreachable

[aermakov-zalando]

The controller just crashes if the API server is unreachable. It should expose this information via the health check endpoint and continue retrying.

[szuecs]

A log would be helpful, or did not print anything?

[njuettner]

I can provide some logs:

E0430 12:56:54.213003       1 streamwatcher.go:109] Unable to decode an event from the watch stream: http2: server sent GOAWAY and closed the connection; LastStreamID=3, ErrCode=NO_ERROR, debug=""
time="2019-04-30T12:56:54Z" level=info msg="Watcher: stopped to watch ConfigMaps"
time="2019-04-30T12:56:54Z" level=info msg="closed channel event, restart watch"
time="2019-04-30T12:56:54Z" level=fatal msg="Watcher: Failed to enter ConfigMap watcher: Get https://10.3.0.1:443/api/v1/configmaps?labelSelector=egress%3Dstatic&watch=true: dial tcp 10.3.0.1:443: connect: connection refused"

https://github.com/szuecs/kube-static-egress-controller/blob/master/main.go#L225

[njuettner]