• Adeodato Simo's avatar
    Update 2.3 design doc regarding node group features and behavior. · f5d723fe
    Adeodato Simo authored
    In particular:
    
      - introduce a "gnt-group" command to hold group-level operations.
      - ditch the concept of "default node group", except for single-group
        clusters.
      - introduce an "alloc_policy" attribute for node groups, indicating
        how they should be treated by automated allocation tools.
      - introduce a "drain" operation on node groups.
      - define iallocator modes for new instance allocation and
        inter-group moves (choosing among all groups, or providing a
        limiting list).
      - indicate and explain that changing the group of a node will be
        initially only supported for nodes that are empty.
    Signed-off-by: default avatarAdeodato Simo <dato@google.com>
    Signed-off-by: default avatarBalazs Lecz <leczb@google.com>
    Reviewed-by: default avatarGuido Trotter <ultrotter@google.com>
    f5d723fe
design-2.3.rst 37.2 KB