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sync-containers3: add hostname option

This commit is contained in:
lassulus 2024-03-17 10:04:05 +01:00
parent b19e15e7d0
commit 9e2fe26517
1 changed files with 13 additions and 5 deletions
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18
krebs/3modules/sync-containers3.nix
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@ -43,6 +43,14 @@ in {
fi
'';
};
hostname = lib.mkOption {
type = lib.types.str;
description = ''
hostname of the container,
his is continously checked by ping and the container is restarted if unreachable
'';
default = config.name;
};
};
}));
};
@ -110,8 +118,8 @@ in {
set -efux
consul lock sync_${ctr.name} ${pkgs.writers.writeDash "${ctr.name}-sync" ''
set -efux
if ping -c 1 ${ctr.name}.r; then
nice --adjustment=30 rsync -a -e "ssh -i $CREDENTIALS_DIRECTORY/ssh_key" --timeout=30 --inplace --sparse container_sync@${ctr.name}.r:disk "$HOME"/disk.rsync
if ping -c 1 ${ctr.hostname}; then
nice --adjustment=30 rsync -a -e "ssh -i $CREDENTIALS_DIRECTORY/ssh_key" --timeout=30 --inplace --sparse container_sync@${ctr.hostname}:disk "$HOME"/disk.rsync
touch "$HOME"/incomplete
nice --adjustment=30 rsync --inplace "$HOME"/disk.rsync "$HOME"/disk
rm -f "$HOME"/incomplete
@ -153,7 +161,7 @@ in {
export payload
if [ "$(jq -rn 'env.payload | fromjson.host')" = '${config.networking.hostName}' ]; then
# echo 'we are the host, trying to reach container'
if $(retry -t 10 -d 10 -- ping -q -c 1 ${ctr.name}.r > /dev/null); then
if $(retry -t 10 -d 10 -- ping -q -c 1 ${ctr.hostname} > /dev/null); then
# echo 'container is reachable, continueing'
continue
else
@ -237,8 +245,8 @@ in {
/run/current-system/sw/bin/nixos-container start ${ctr.name}
# wait for system to become reachable for the first time
systemctl start ${ctr.name}_watcher.service
retry -t 10 -d 10 -- ping -q -c 1 ${ctr.name}.r > /dev/null
while systemctl is-active container@${ctr.name}.service >/devnull && ping -q -c 3 ${ctr.name}.r >/dev/null; do
retry -t 10 -d 10 -- ping -q -c 1 ${ctr.hostname} > /dev/null
while systemctl is-active container@${ctr.name}.service >/devnull && ping -q -c 3 ${ctr.hostname} >/dev/null; do
consul kv put containers/${ctr.name} "$(jq -cn '{host: "${config.networking.hostName}", time: now}')" >/dev/null
sleep 10
done