#!/sbin/openrc-run
# Copyright 2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

name="daed daemon"
description="daed Service"
command="/usr/bin/daed"
command_args="run "
pidfile="/run/${RC_SVCNAME}.pid"
command_background="yes"
output_log="/var/log/daed/access.log"
error_log="/var/log/daed/error.log"
supervisor="supervise-daemon"
rc_ulimit="-n 30000"
rc_cgroup_cleanup="yes"

depend() {
    after docker net net-online sysctl
    use net
}

error() {
    echo "ERROR: $@" >&2
    logger "ERROR: $@"
}

start_pre() {
    if [ -d /sys/fs/bpf ]; then
        if ! mountinfo -q /sys/fs/bpf; then
            # From: https://github.com/cilium/cilium/blob/main/contrib/systemd/sys-fs-bpf.mount
            # TODO: looking for sys-fs-bpf.mount in init.d
            mount -t bpf bpffs /sys/fs/bpf || {
                error "failed to mount bpf filesystem, exiting..."
                return 1
            }
        fi
    fi
    if [ -d /sys/fs/cgroup ] && ! mountinfo -q /sys/fs/cgroup/; then
        error "cgroup filesystem not mounted, exiting..."
        return 1
    fi
    if [ ! -d "/tmp/daed/" ]; then
        mkdir "/tmp/daed"
    fi
    if [ ! -L "/var/log/daed" ]; then
        ln -s "/tmp/daed/" "/var/log/"
    fi
}