infrastructure/scripts/check-deployment.sh

120 lines
2.8 KiB
Bash

set -o errexit
set -o nounset
set -o pipefail
shopt -s lastpipe
usage="$(basename "$0") [-h] [--diff] [NODE]
Check if deployed config is actually the one on master
By default check all nodes
where:
-h Show this help text
--diff Show diff with nvd
Exemple:
check-deployment web01"
while [[ $# -gt 0 ]]; do
case "$1" in
--help | -h)
echo "$usage"
exit 0
;;
--diff)
diff=y
;;
*)
if [[ -z ${node-} ]]; then
node="$1"
else
echo "Too many arguments. Help:"
echo "$usage"
exit 1
fi
;;
esac
shift
done
#############
# go to tmp #
#############
TMP=$(mktemp -d)
GIT_TOP_LEVEL=$(git rev-parse --show-toplevel)
echo "Cloning local main..."
git clone -q --branch main --single-branch "$GIT_TOP_LEVEL" "$TMP"
pushd "$TMP" >/dev/null || exit 2
####################
# Evaluate configs #
####################
colmena_failed() {
>&2 echo "Colmena failed. Check your config. Logs:"
>&2 cat "$COLMENA_LOGS"
exit 3
}
COLMENA_LOGS=$(mktemp)
echo "Evaluating configs..."
# Disable warning because of '${}'
# shellcheck disable=SC2016
RESULTS=$(colmena eval -E '{ nodes, lib, ...}: lib.mapAttrsToList (k: v: { machine = k; path = v.config.system.build.toplevel; drv = v.config.system.build.toplevel.drvPath; domain = "${v.config.networking.hostName}.${v.config.networking.domain}"; }) nodes' 2>"$COLMENA_LOGS" || colmena_failed)
rm "$COLMENA_LOGS"
echo "Evaluation finished"
#####################################
# retrieve and check current-system #
#####################################
retrieve_current_system() {
# TODO implement a less invasive method
ssh -n "root@$1" "readlink -f /run/current-system"
}
return_status=0
echo "$RESULTS" | jq -c '.[]' |
while IFS=$'\n' read -r c; do
machine=$(echo "$c" | jq -r '.machine')
if [[ -n ${node-} ]] && [[ "$machine" != "$node" ]]; then
echo "Skipping ${machine}"
continue
fi
expected_path=$(echo "$c" | jq -r '.path')
domain=$(echo "$c" | jq -r '.domain')
drv_path=$(echo "$c" | jq -r '.drv')
err=0
current_path=$(retrieve_current_system "$domain") || err=1
if [[ "1" == "${err}" ]]; then
echo "❌ failed to contact $domain !"
continue
fi
if [ "$expected_path" == "$current_path" ]; then
echo "$machine -> OK"
elif [[ -n ${diff-} ]]; then
nix-copy-closure --from "root@$domain" "$current_path"
nix-store -r "$drv_path"
echo "$machine -> error. nvd output:"
nvd diff "$expected_path" "$current_path"
return_status=1
else
echo "☠️ $machine -> error:"
echo " - Expected system: $expected_path"
echo " - Current system: $current_path"
return_status=1
fi
done
popd >/dev/null || exit 2
rm -r "$TMP"
exit $return_status