80 lines
2.1 KiB
Bash
Executable File
80 lines
2.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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ALLOW_REBOOT=
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NO_CONFIRM=
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NODE_EXPORTER_METRICS_PATH=
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while [[ $# -gt 0 ]]; do
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case $1 in
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--allow-reboot)
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ALLOW_REBOOT=1
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shift
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;;
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--no-confirm)
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NO_CONFIRM=1
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shift
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;;
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--node-exporter-metrics-path)
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NODE_EXPORTER_METRICS_PATH=$2
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shift
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shift
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;;
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*)
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echo "Unknown option $1"
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exit 1
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;;
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esac
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done
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HYDRA_JOB_URL="https://hydra.clerie.de/job/nixfiles/nixfiles/nixosConfigurations.${HOSTNAME}/latest-finished"
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echo "Fetching job output from ${HYDRA_JOB_URL}"
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STORE_PATH="$(curl --fail -s -L -H "Accept: application/json" "${HYDRA_JOB_URL}" | jq -r ".buildoutputs.out.path")"
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if [[ -z $NO_CONFIRM ]]; then
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echo ""
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echo " ! WARNING !"
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echo ""
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echo " You are about to upgrade ${HOSTNAME} to ${STORE_PATH}."
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echo " This can be an older version than currently running on this system."
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echo ""
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read -e -r -p "Continue?" confirm
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echo "$confirm" > /dev/null
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fi
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echo "Download ${STORE_PATH}"
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nix copy --from "https://nix-cache.clerie.de" "${STORE_PATH}"
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echo "Add to system profile"
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nix-env -p "/nix/var/nix/profiles/system" --set "${STORE_PATH}"
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echo "Set as boot target"
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/nix/var/nix/profiles/system/bin/switch-to-configuration boot
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if [[ -n "$NODE_EXPORTER_METRICS_PATH" ]]; then
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echo "Write monitoring check data"
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echo "nixfiles_system_upgrade_last_check $(date +%s)" > "$NODE_EXPORTER_METRICS_PATH"
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fi
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BOOTED_SYSTEM_KERNEL="$(readlink /run/booted-system/{initrd,kernel,kernel-modules})"
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ACTIVATING_SYSTEM_KERNEL="$(readlink /nix/var/nix/profiles/system/{initrd,kernel,kernel-modules})"
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if [[ "$BOOTED_SYSTEM_KERNEL" != "$ACTIVATING_SYSTEM_KERNEL" ]]; then
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echo "Reboot is required"
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if [[ -n "$ALLOW_REBOOT" ]]; then
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echo "Rebooting system now"
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shutdown -r +1 "System update requires reboot"
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else
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echo "Automatic reboot not allowed (maybe use --allow-reboot next time)"
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echo "The system upgrade is staged, please reboot manually soon"
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fi
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else
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echo "No reboot is required"
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echo "Activating system now"
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/nix/var/nix/profiles/system/bin/switch-to-configuration switch
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fi
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echo "Finished system upgrade"
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