the restore of a rancher Cluster on CentOS 7.5 fails when prometheus-operator is installed on it.
Restore procedure as described in the docs.
Bring up the first node works.
Bringing up two moer nodes fails with this error:
INFO [etcd] Building up etcd plane…
INFO [etcd] Successfully updated [etcd] container on host [rancher-master-1]
FATA [etcd] Failed to bring up Etcd Plane: Can’t remove Docker container [old-etcd] for host [rancher-master-1]: Error response from daemon: Driver overlay failed to remove root filesystem 51885ce1f27eaf741447c9d13befeb429e9c9b8281a6e348f2a67001fc0cfe62: remove /var/lib/docker/overlay/c00667c76d28f3ad10392b903252b3a19327a41a6bfe77a42f64f33164a64586/merged: device or resource busy
If someone has any ideas about this, thank you very much for help!
Rancher Cluster 3 Nodes in HA, tested on 2.0.8 and 2.1.1
rke tested v1.0.9, v1.0.10, v1.0.11
prometheus from https://github.com/coreos/prometheus-operator/tree/master/contrib/kube-prometheus
Docker Storage Driver: overlay, also tested overlay2
Server Version: 17.03.2-ce
Storage Driver: overlay
Backing Filesystem: xfs
Supports d_type: true
Kernel Version: 3.10.0-862.el7.x86_64
Operating System: CentOS Linux 7 (Core)