Systemd specify a config file

UNIX for Beginners Q & A
1

I have this systemd unit file and my attempt was to convert the existing init.d script to a systemd unit file. I am having trouble declaring the config file that should be used as declared in the init.d script.

Here is the init.d script:

# The following variables can be overwritten in $DEFAULT
# maximum number of open files
MAX_OPEN_FILES=
# overwrite settings from default file
if [ -f "$DEFAULT" ]; then
      . "$DEFAULT"
fi
# set maximum open files if set
if [ -n "$MAX_OPEN_FILES" ]; then
    ulimit -n $MAX_OPEN_FILES
fi
get_user_shell() {
    local shell=$(getent passwd ${1:-`whoami`} | cut -d: -f7 | sed -e 's/[[:space:]]*$//')
    if [[ $shell == *"/sbin/nologin" ]] || [[ $shell == "/bin/false" ]] || [[ -z "$shell" ]];
    then
      shell="/bin/bash"
    fi
    echo "$shell"
}
super() {
    local shell=$(get_user_shell $USER)
    su - $USER -s $shell -c "PATH=$PATH; PM2_HOME=$PM2_HOME $*"
}
start() {
    echo "Starting $NAME"
    super $PM2 start --only="$PM2_APP_NAME" --env=production $PM2_CONFIG_FILE
}
stop() {
    super $PM2 stop --only="$PM2_APP_NAME" $PM2_CONFIG_FILE
    $PM2 kill
}
restart() {
    echo "Restarting $NAME"
    stop
    start
}
reload() {
    echo "Reloading $NAME"
    super $PM2 reload --only="$PM2_APP_NAME" $PM2_CONFIG_FILE
}
status() {
    echo "Status for $NAME:"
    super $PM2 list
    RETVAL=$?
}
case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    status)
        status
        ;;
    restart)
        restart
        ;;
    reload)
        reload
        ;;
    force-reload)
        reload
        ;;
    *)
        echo "Usage: {start|stop|status|restart|reload|force-reload}"
        exit 1
        ;;
esac
exit $RETVAL

And here is my attempt so far of the systemd unit file:

[Unit]
Description=app1
Documentation=https://pm2.keymetrics.io/
After=network.target

[Service]
Type=forking
User=appuser
LimitNOFILE=infinity
LimitNPROC=infinity
LimitCORE=infinity
Environment=PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/usr/bin:/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
Environment=PM2_HOME=/home/appuser/.pm2
PIDFile=/home/appuser/.pm2/pm2.pid
Restart=on-failure

ExecStart=/home/appuser/products/services/ash/releases/2.10.0/node_modules/pm2/bin/pm2  "-c /home/appuser/products/services/app1/current/ecosystem.config.js"
ExecReload=/home/appuser/products/services/ash/releases/2.10.0/node_modules/pm2/bin/pm2 reload all
ExecStop=/home/appuser/products/services/ash/releases/2.10.0/node_modules/pm2/bin/pm2 kill

[Install]
WantedBy=multi-user.target

So far I cannot get this to work?

2

What is the error you are getting when starting your service ?
Is there anything written in status or in the system logs ?

What operating system version is this ?

Regards
Peasant.

3

I just edited the question and now it works. I added the "-c path/to/conf/file " switch