charmcraft.yaml

name: slurmd

summary: |
  Slurmd, the compute node daemon of Slurm.

description: |
  This charm provides slurmd, munged, and the bindings to other utilities
  that make lifecycle operations a breeze.

  slurmd is the compute node daemon of SLURM. It monitors all tasks running
  on the compute node, accepts work (tasks), launches tasks, and kills
  running tasks upon request.

links:
  contact: https://matrix.to/#/#hpc:ubuntu.com

  issues:
  - https://github.com/charmed-hpc/slurm-charms/issues

  source:
  - https://github.com/charmed-hpc/slurm-charms

assumes:
  - juju

type: charm
base: ubuntu@24.04
platforms:
  amd64:

parts:
  charm:
    charm-binary-python-packages:
      - cryptography ~= 44.0.0
  nhc:
    plugin: nil
    build-packages:
      - wget
    override-pull: |
      wget https://github.com/mej/nhc/releases/download/1.4.3/lbnl-nhc-1.4.3.tar.gz
    override-build: |
      install -m644 -D -t $CRAFT_PART_INSTALL lbnl-nhc-1.4.3.tar.gz
      craftctl default

provides:
  slurmctld:
    interface: slurmd
    limit: 1

config:
  options:
    partition-config:
      type: string
      default: ""
      description: >
        Additional partition configuration parameters, specified as a space separated `key=value`
        in a single line. Find a list of all possible partition configuration parameters
        [here](https://slurm.schedmd.com/slurm.conf.html#SECTION_PARTITION-CONFIGURATION).


        Example usage:
        ```bash
         $ juju config slurmd partition-config="DefaultTime=45:00 MaxTime=1:00:00"
        ```

    nhc-conf:
      default: ""
      type: string
      description: >
        Multiline string.
        These lines are appended to the `nhc.conf` maintained by the charm.

        Example usage:
        ```bash
         $ juju config slurmd nhc-conf="$(cat extra-nhc.conf)"
        ```

actions:
  node-configured:
    description: Remove a node from DownNodes when the reason is `New node`.

  node-config:
    description: >
      Set or return node configuration parameters.

      To get the current node configuration for this unit:
      ``bash
      $ juju run slurmd/0 node-parameters
      ```

      To set node level configuration parameters for the unit `slurmd/0`:
      ``bash
      $ juju run slurmd/0 node-config parameters="Weight=200 Gres=gpu:tesla:1,gpu:kepler:1,bandwidth:lustre:no_consume:4G"
      ```

    params:
       parameters:
        type: string
        description: >
          Node configuration parameter as defined [here](https://slurm.schedmd.com/slurm.conf.html#SECTION_NODE-CONFIGURATION).

  show-nhc-config:
    description: Display `nhc.conf`.