Worker Management
sind create worker [CLUSTER] [FLAGS]
| Flag | Default | Description |
|---|---|---|
--count |
1 |
Number of nodes to add |
--image |
the controller’s image | Container image |
--cpus |
1 |
CPU limit per node |
--memory |
512m |
Memory limit |
--tmp-size |
256m |
/tmp tmpfs size |
--unmanaged |
false |
Don’t start slurmd, don’t add to slurm.conf (implied on unmanaged clusters) |
--pull |
false |
Pull images before creating containers |
--cap-add |
none | Add Linux capability (repeatable; e.g. SYS_ADMIN) |
--cap-drop |
none | Drop Linux capability (repeatable) |
--device |
none | Expose host device (repeatable; e.g. /dev/fuse) |
--security-opt |
none | Security option (repeatable) |
--cap-add and --cap-drop take the capability names the cluster config’s capAdd and capDrop accept, and --device needs an absolute host path, as devices does; sind checks them before it creates any container.
# 1 managed worker with default resources
sind create worker
# 3 managed workers
sind create worker --count 3
# Workers in a named cluster
sind create worker dev --count 2
# With resource limits
sind create worker --cpus 2 --memory 1g
# Unmanaged workers (slurmd not started)
sind create worker --count 2 --unmanaged
For managed workers (the default), sind:
- Creates the worker container(s)
- Appends node definitions to
sind-nodes.conf - Reconfigures slurmctld (
scontrol reconfigure) - Starts slurmd on the new node(s)
This requires sind-nodes.conf to exist in /etc/slurm. If you replaced the generated Slurm configuration, use --unmanaged instead.
On an unmanaged cluster, every new worker is unmanaged, with or without --unmanaged.
sind delete worker NODES
For managed workers, sind removes them from sind-nodes.conf and reconfigures slurmctld before deleting the container. Works with both managed and unmanaged nodes. On an unmanaged cluster, sind never edits the Slurm configuration.
# Remove a single worker
sind delete worker worker-2
# Remove multiple workers
sind delete worker worker-[2-4]
# Remove workers from a named cluster
sind delete worker worker-[0-1].dev
See Node Arguments for the full nodeset expansion syntax.