Previously when setting the external cloud controller manager
configuration the core components `kubelet`, `apiserver` and
`kubecontroller-manager` were configured to use the external cloud
controller manager. Without setting the feature flag
EnableExternalCloudController this lead to a cluster in which the
masters had the cloud controller taint
`node.cloudprovider.kubernetes.io/uninitialized` which prevents
essential pods, like dns-controller to not be scheduled and leaves a
cluster where worker nodes can't connect to the api server because they
cannot resolve its hostname.
Image names from 1.16 on include an architecture suffix,
e.g. "-amd64"; the generic alias continues to work when pulling, but
when loading from a tarball (i.e. running in CI) we must use the
per-architecture name.
We don't call klog.InitFlags yet, because that will cause a flag
redefinition error until we get everyone to stop using glog. That
will happen when we update to k8s 1.13.
https://github.com/lyft/cni-ipvlan-vpc-k8s
This cni solution is slightly different in that it doesn't require running a daemonset
It requires:
* a config file in /etc/cni/net.d
* the binaries in /opt/cni/bin
* adding the --node-ip param to the kubelet
This code is modeled after the AmazonVPC cni bits.
I've left the setup of the required subnets as an exercise to the reader.
fixes#2606
Most part of the changes are similar to current supported CNI networking
provider. Kube-router also support IPVS bassed service proxy which can
be used as replacement for kube-proxy. So the manifest for kube-router
included with this patch enables kube-router to provide pod-to-pod
networking, IPVS based service proxy and ingress pod firewall.
We move everything to the models. We feature-flag it, because we
probably want to change the names etc, and we aren't going to be able to
offer smooth upgrades until that is done.
User reports of kubelet flags not being passed; moved more to code.
Also found & fixed the likely root-cause issue: we have two copies of
the cluster spec and were not being precise about which one we wanted to
use at all times.
Michael Wagner