# ------------------------------------------------------------------------------
# Install check_mk agent using xinetd superserver
# This file is part of the init.sh project
# Copyright (c) 2019-2023 Geoffray Levasseur <fatalerrors@geoffray-levasseur.org>
# ------------------------------------------------------------------------------
# This file is distributed under 3-clause BSD license.
# The complete license agreement can be obtained at:
# https://opensource.org/licenses/BSD-3-Clause
# ------------------------------------------------------------------------------
# Variable:
#  * MK_SERVER: Server IP address
#  * MK_PORT: Port check_mk agent will use to communicate with server
# ------------------------------------------------------------------------------

export VER_install_mkagent="0.0.6"
export DEP_install_mkagent="upgrade_dist install_pkg"

install_mkagent()
{
    wget $MK_URL -O /tmp/check-mk-agent_${MK_VERSION}_all.deb
    pkginst xinetd /tmp/check-mk-agent_${MK_VERSION}_all.deb
    rm /tmp/check-mk-agent_${MK_VERSION}_all.deb

    backup_dist /etc/xinetd.d/check_mk
    install_file cmk/check_mk /etc/xinetd.d/check_mk
    tag_file /etc/xinetd.d/check_mk
    sed -i -e "s/@MK_SERVER_IP@/$MK_SERVER_IP/" /etc/xinetd.d/check_mk

    mkdir -pv /usr/lib/check_mk_agent/plugins/28800
    install_file cmk/mk_apt /usr/lib/check_mk_agent/plugins/28800/mk_apt
    
    # Cmk > 2.1, configure agent
    if [[ -e /var/lib/cmk-agent/cmk-agent-ctl.gz ]]; then
        gunzip /var/lib/cmk-agent/cmk-agent-ctl.gz
        chmod +x /var/lib/cmk-agent/cmk-agent-ctl
        scp -O $MK_SERVER_IP:/etc/check_mk/agentpwd /tmp/mk-pwd
        /var/lib/cmk-agent/cmk-agent-ctl register --hostname $HOSTNAME \
            --server $MK_SERVER_IP --site check_mk --user check_mk --password \
            "$(read /etc/mk-pwd)"
    fi

    svc_restart xinetd
}

precheck_install_mkagent()
{
    if [[ -z $MK_VERSION ]]; then
	prnt E "Undeclared check_mk version of the agent to install."
	die 162
    fi
    if [[ -z $MK_URL ]]; then
	prnt E "Undeclared check_mk download URL."
	die 162
    fi
    if [[ -z $MK_SERVER_IP ]]; then
	prnt E "Undeclared check_mk server."
	die 162
    fi
    file_must_exists cmk/check_mk cmk/mk_apt
}

export -f install_mkagent
export -f precheck_install_mkagent

# EOF