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#!/usr/bin/env bash
# Get cluster subdirectory name
cd $(dirname $0)
CLUSTER="$1"
if [ -z "$CLUSTER" ] || [ ! -d "cluster/$CLUSTER" ]; then
echo "Usage: $0 <cluster name>"
echo "The cluster name must be the name of a subdirectory of cluster/"
exit 1
fi
shift 1
# Do actual stuff
if [ -z "$@" ]; then
NIXHOSTLIST=$(ls cluster/$CLUSTER/node | grep -v '\.site\.')
else
NIXHOSTLIST="$@"
fi
TMP_SCRIPT=/tmp/tmp-upgrade-$(date +%s).sh
SSH_CONFIG=cluster/$CLUSTER/ssh_config
for NIXHOST in $NIXHOSTLIST; do
NIXHOST=${NIXHOST%.*}
if [ -z "$SSH_USER" ]; then
SSH_DEST=$NIXHOST
else
SSH_DEST=$SSH_USER@$NIXHOST
fi
echo "==== DOING $NIXHOST ===="
ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_SCRIPT > /dev/null <<EOF
set -ex
nix-channel --add https://nixos.org/channels/nixos-21.11 nixos
nix-channel --update
nixos-rebuild boot
EOF
read -p "Press Enter to continue (run upgrade on $NIXHOST)..."
ssh -t -F $SSH_CONFIG $SSH_DEST sudo sh $TMP_SCRIPT
ssh -F $SSH_CONFIG $SSH_DEST rm -v $TMP_SCRIPT
read -p "Press Enter to continue (reboot $NIXHOST)..."
ssh -t -F $SSH_CONFIG $SSH_DEST sudo reboot
done
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