Synnefo » snf-ganeti » ganeti-local

-t *datafile*, --text-data=*datafile*

  Backend specification: the name of the file holding node and instance

  information (if not collecting via RAPI or LUXI). This or one of the

  other backends must be selected. The option is described in the man

  page **htools**(1).

  The file should contain text data, line-based, with two empty lines

  separating sections. The lines themselves are column-based, with the

  pipe symbol (``|``) acting as separator.

  The first section contains group data, with two columns:

  - group name

  - group uuid

  The second sections contains node data, with the following columns:

  - node name

  - node total memory

  - node free memory

  - node total disk

  - node free disk

  - node physical cores

  - offline field (as ``Y`` or ``N``)

  - group UUID

  The third section contains instance data, with the fields:

  - instance name

  - instance memory

  - instance disk size

  - instance vcpus

  - instance status (in Ganeti's format, e.g. ``running`` or ``ERROR_down``)

  - instance ``auto_balance`` flag (see man page **gnt-instance** (7))

  - instance primary node

  - instance secondary node(s), if any

  - instance disk type (e.g. ``plain`` or ``drbd``)

  - instance tags

  The fourth and last section contains the cluster tags, with one tag

  per line (no columns/no column processing).

-m *cluster*

  Backend specification: collect data directly from the *cluster* given

  as an argument via RAPI. If the argument doesn't contain a colon (:),

  then it is converted into a fully-built URL via prepending

  ``https://`` and appending the default RAPI port, otherwise it is

  considered a fully-specified URL and used as-is.

-L [*path*]

  Backend specification: collect data directly from the master daemon,

  which is to be contacted via LUXI (an internal Ganeti protocol). An

  optional *path* argument is interpreted as the path to the unix socket

  on which the master daemon listens; otherwise, the default path used

  by Ganeti (configured at build time) is used.

--simulate *description*

  Backend specification: instead of using actual data, build an empty

  cluster given a node description. The *description* parameter must be

  a comma-separated list of five elements, describing in order:

  - the allocation policy for this node group (*preferred*, *allocable*

    or *unallocable*, or alternatively the short forms *p*, *a* or *u*)

  - the number of nodes in the cluster

  - the disk size of the nodes (default in mebibytes, units can be used)

  - the memory size of the nodes (default in mebibytes, units can be used)

  - the cpu core count for the nodes

  An example description would be **preferred,B20,100G,16g,4**

  describing a 20-node cluster where each node has 100GB of disk

  space, 16GiB of memory and 4 CPU cores. Note that all nodes must

  have the same specs currently.

  This option can be given multiple times, and each new use defines a

  new node group. Hence different node groups can have different

  allocation policies and node count/specifications.