github.com/jlmeeker/kismatic@v1.10.1-0.20180612190640-57f9005a1f1a/docs/upgrade/v1.6.0/etcd-nodes.md (about)

     1  # Etcd Nodes
     2  
     3  ## Action Required
     4  Block storage device must be added to etcd nodes when using DeviceMapper storage
     5  driver in direct-lvm mode.
     6  
     7  ## Summary
     8  
     9  In previous versions, Etcd was installed on the nodes using an RPM or DEB package
    10  that was maintained by the Kismatic team. As KET moves away from the Kismatic packages
    11  to the upstream Kubernetes packages, KET is no longer able to install etcd using
    12  these RPMs or DEBs.
    13  
    14  Starting with KET v1.6.0, etcd is executed as a container on the etcd nodes, which 
    15  means docker will be installed during the upgrade. If you are running docker
    16  with the DeviceMapper storage driver in direct-lvm mode, you will need to add a
    17  new block storage device that will be used for direct-lvm. Furthermore, the device
    18  must be attached at the same location as every other node on the cluster.