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============================ | ||
Controlling Warewulf (wwctl) | ||
============================ | ||
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Warewulf's command-line interface is based primarily around the | ||
``wwctl`` command. This command has sub-commands for each major | ||
component of Warewulf's functionality. | ||
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* ``configure`` configures external services that Warewulf depends on | ||
* ``container`` configures containers (node images) | ||
* ``kernel`` configures override kernels | ||
* ``node`` manages nodes in the cluster | ||
* ``profiles`` defines configuration which can be applied to multiple | ||
nodes | ||
* ``overlays`` manages nodes | ||
* ``power`` turns nodes on and off | ||
* ``ssh`` provides basic parallel ssh functionality | ||
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All of these subcommands (and their respective sub-subcommands) have | ||
built-in help with either ``wwctl help`` or ``--help``. | ||
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Hostlists | ||
========= | ||
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Many of the commands (e.g., ``wwctl node list`` support a "hostlist" | ||
syntax for referring to multiple nodes at once. Hostlist expressions | ||
support both ranges and comma-separated numerical lists. | ||
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For example: | ||
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* ``node[1-2]`` expands to ``node1 node2`` | ||
* ``node[1,3]`` expands to ``node1 node3`` | ||
* ``node[1,5-6]`` expands to ``node1 node5 node6`` |
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