xin/deploy

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#!/usr/bin/env sh
. ./common.sh
trap error INT TERM
rebuild() {
host="$(resolveAlias $1)"
skip_check=$2
msg "Rebuilding: ${host}"
if ! tsAlive $host; then
msg "can't reach ${host}.. skipping.."
return
fi
hostVersion=$(${SSH} root@${host} 'nixos-version --json | jq -r .configurationRevision')
if [ $? != 0 ]; then
return $?
fi
if [ "$hostVersion" = "$CurrentVersion" ] && [ $skip_check = false ]; then
msg "Up-to-date: ${host}"
return 0
fi
nixos-rebuild --flake .#${1} --build-host root@${host} --target-host root@${host} switch
return $?
}
if [ "$1" = "status" ]; then
start
rev=$(git rev-parse HEAD)
msg "Currently at: ${rev}\t($(git log --format=%B -n 1 $rev | head -n1))"
for h in $(ls hosts); do
host="$(resolveAlias $h)"
if ! tsAlive $host; then
msg "can't reach ${host}.. skipping.."
continue
fi
echo -n "===> $h: "
host_data="$(${SSH} root@${host} 'nixos-version --json')"
remote_rev=$(echo $host_data | jq -r .configurationRevision)
remote_ver=$(echo $host_data | jq -r .nixosVersion)
echo -e "\t\t${remote_ver}\t${remote_rev}\t($(git log --format=%B -n 1 $remote_rev | head -n1))"
done
finish
exit 0
fi
if [ "$1" = "install" ]; then
host="$(resolveAlias $2)"
start
if [ ! -d hosts/${host} ]; then
msg "No config found for $host"
exit 1
fi
set -eu
mkdir -p .gcroots
out=$(nix build -o .gcroots/${host} --json .#nixosConfigurations.${host}.config.system.build.toplevel | jq -r '.[0].outputs.out')
nix copy -s --to "ssh://root@${host}" "$out"
nix copy -s --derivation --to "ssh://root@${host}" "$out"
${SSH} "root@${host}" nix build --profile /nix/var/nix/profiles/system "$out"
${SSH} "root@${host}" nix shell -vv "$out" -c switch-to-configuration "$@"
exit 0
fi
if [ "$1" = "update" ]; then
can_sign=0
for i in $(ssh-add -L | awk '{print $NF}'); do
grep -q $i .allowed_signers && can_sign=1
done
if [ $can_sign = 1 ]; then
nix flake update --commit-lock-file
exit
else
echo "Can't find signing key."
exit 1
fi
fi
if [ "$1" = "installer" ]; then
nix build .#nixosConfigurations.isoInstall.config.system.build.isoImage
exit $?
fi
start
if [ "$1" = "diff" ]; then
set -x
host="$(resolveAlias $2)"
mkdir -p .gcroots
out=$(nix build -o .gcroots/${host} --json .#nixosConfigurations.${2}.config.system.build.toplevel | jq -r '.[0].outputs.out')
nix copy -s --to "ssh://root@$host" "$out"
nix copy -s --derivation --to "ssh://root@$host" "$out"
${SSH} "root@$host" "nix-store -qd /run/current-system $out | xargs nix-diff --color=always" | less
exit $?
fi
ret=0
if [ ${#@} = 1 ]; then
rebuild $1 true || ret=1
else
for host in $(ls hosts); do
rebuild $host false || ret=1
done
fi
if [ $ret = 0 ]; then
finish
else
msg "WARNING: Management key retained!"
fi