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Fix etcd connect for join --control-plane

pull/58/head
fabriziopandini 2018-11-22 17:17:27 +01:00
parent b6a0718858
commit 8a53031b4e
1 changed files with 28 additions and 25 deletions
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9
cmd/kubeadm/app/util/etcd/etcd.go
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@ -126,14 +126,16 @@ func NewFromCluster(client clientset.Interface, certificatesDir string) (*Client
// The first case should be dropped in v1.14 when support for v1.12 clusters can be removed from the codebase.
// Detect which type of etcd we are dealing with
// Please note that this test can be executed only on master nodes during upgrades;
// For nodes where we are joining a new control plane node instead we should tolerate that the etcd manifest does not
// exists and try to connect to etcd using API server advertise address; as described above this will lead to a know isse
// for cluster created with v1.12, but a documented workaround will be provided
oldManifest := false
klog.V(1).Infoln("checking etcd manifest")
etcdManifestFile := constants.GetStaticPodFilepath(constants.Etcd, constants.GetStaticPodDirectory())
etcdPod, err := staticpod.ReadStaticPodFromDisk(etcdManifestFile)
if err != nil {
return nil, errors.Wrap(err, "error reading etcd manifest file")
}
if err == nil {
etcdContainer := etcdPod.Spec.Containers[0]
for _, arg := range etcdContainer.Command {
if arg == "--listen-client-urls=https://127.0.0.1:2379" {
@ -159,6 +161,7 @@ func NewFromCluster(client clientset.Interface, certificatesDir string) (*Client
return etcdClient, nil
}
}
// etcd is listening on localhost and API server advertise address, and
// the etcd cluster can have more than one etcd members, so it is necessary to get the