#!/bin/sh
#
# Description: Sync jail configuration and state on other node(s)
# Usage: sync [<jailname>|all]
#

# shellcheck source=./includes
LIBDIR="$(dirname $0)" && . "${LIBDIR}/includes"

jail_name="${1:?}"
if [ -z "${jail_name}" ]; then
    show_help && exit 1
fi
jail_path=$(jail_path "${jail_name}")
jail_config_dir=$(jail_config_dir "${jail_name}")

test -d "${jail_path}" || error "${jail_name}: jail not found" 2

[ -n "${NODE}" ] || error "Sync need config of \$NODE in /etc/default/bkctld !"

ssh "${NODE}" "${LIBDIR}/bkctld-is-on ${jail_name} 2>/dev/null"
# return code 2 is for "missing jail" error
if [ "$?" -eq 2 ]; then
    # Init jail on remote server
    ssh "${NODE}" "${LIBDIR}/bkctld-init ${jail_name}" | debug
fi

# Sync jail structure and configuration on remote server
rsync -a "${jail_path}/" "${NODE}:${jail_path}/" --exclude proc/* --exclude sys/* --exclude dev/* --exclude run --exclude var/backup/*
# Sync config (new structure)
if [ -d "${jail_config_dir}" ]; then
    rsync -a --delete "${jail_config_dir}/" "${NODE}:${jail_config_dir}/"
else
    ssh "${NODE}" "rm -rf ${jail_config_dir}" | debug
fi
# Sync config (legacy structure)
if [ -e "${CONFDIR}/${jail_name}" ]; then
    rsync -a "${CONFDIR}/${jail_name}" "${NODE}:${CONFDIR}/${jail_name}"
else
    ssh "${NODE}" "rm -f ${CONFDIR}/${jail_name}" | debug
fi

if [ -n "${FIREWALL_RULES}" ]; then
    ssh "${NODE}" "${LIBDIR}/bkctld-firewall ${jail_name}" | debug
    ssh "${NODE}" "test -x /etc/init.d/minifirewall && /etc/init.d/minifirewall restart" | debug
fi

# Sync state on remote server
if "${LIBDIR}/bkctld-is-on" "${jail_name}"; then
    # fetch state of remote jail
    ssh "${NODE}" "${LIBDIR}/bkctld-is-on ${jail_name} 2>/dev/null"
    case "$?" in
        0)
            # jail is already running : reload it
            ssh "${NODE}" "${LIBDIR}/bkctld-reload ${jail_name}" | debug
        ;;
        100)
            # jail is stopped : start it
            ssh "${NODE}" "${LIBDIR}/bkctld-start ${jail_name}" | debug
        ;;
        *)
            error "Error evaluating jail \`${jail_name}' state. bkctld-is-on exited with \`$?'"
        ;;
    esac
else
    ssh "${NODE}" "${LIBDIR}/bkctld-stop ${jail_name}" | debug
fi