NixOS configuration for HPC cluster https://docs.hpc.informatik.hs-fulda.de/
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#!/usr/bin/env bash
# Get all nodes with deployment data
NODES="$(colmena eval -E '
{nodes, lib, ...}:
with lib;
mapAttrs
(_: node: with node.config.deployment; "${targetUser}@${targetHost}")
nodes
')"
# Filter to single node if parameter is set
if [[ "$1" != "" ]]; then
NODES="$(jq "{ \"$1\" }" <<< "$NODES")"
fi
# Convert nodes to array of <user>@<host>
mapfile -t NODES < <(jq -r '.[]' <<< "$NODES")
for NODE in "${NODES[@]}"; do
echo "-- ${NODE} --"
ssh "${NODE}" "/run/gather" \
| tar xv --dereference --directory "." \
|| true
done