wrapper script to daemonise traefik

traefik.sh

#! /bin/bash

set -e

#set -x
ROOT=$(dirname $0)

cd $ROOT

# export your cloudflare API key by uncommenting or placing the following lines (uncommented) in traefik.conf

#export CLOUDFLARE_EMAIL="cloudflar@eaccount.email.address"
#export CLOUDFLARE_API_KEY="cloudflare_api_key"

# no edits below

[ -x traefik.conf ] && source traefik.conf

LIBDIR=$ROOT/lib

BINDIR=$ROOT/bin

LOGDIR=$ROOT/log
LOGFILE=$LOGDIR/traefik.log

RUNDIR=$ROOT/run
PIDFILE=$RUNDIR/traefik.pid

CONFDIR=$ROOT/conf
CONFFILE=$CONFDIR/traefik.toml

# Newer versions of Traefik use these variables
CF_API_EMAIL=$CLOUDFLARE_EMAIL
CF_API_KEY=$CLOUDFLARE_API_KEY

start_server() {
        [ -f conf/acme.json ] && chmod 600 conf/acme.json
    if [ -f $PIDFILE ]; then
                PID=$(cat $PIDFILE)
                kill -0 $PID 2> /dev/null && RUNNING=yes || rm $PIDFILE
        fi
        if [ "$RUNNING" == "yes" ]; then
                echo traefik already running.
        else
                echo -n "Starting traefik... "
                $BINDIR/traefik -c $CONFFILE 2>> log/acme.log &
                if [ $? != 0 ]; then
                        echo Failed.
                        exit 1
                else
                        PID=$!
                        echo $PID > $PIDFILE
                        echo "Done. (PID $PID)"
                fi
        fi
}


stop_server() {
        if [ -f $PIDFILE ]; then
                PID=$(cat $PIDFILE)
                echo -n "Stopping traefik... "
                kill -0 $PID 2> /dev/null && kill -INT $PID || rm $PIDFILE
                timeout 10 tail --pid=$PID -f /dev/null
                if [ $? == 124 ]; then
                        echo "Failed. Forcing... "
                        kill -9 $PID
                        timeout 10 tail --pid=$PID -f /dev/null
                        if [ $? == 124 ]; then
                                echo Failed.
                                KILLRESULT=1
                        else
                                KILLRESULT=0
                        fi
                else
                        KILLRESULT=0
                        rm $PIDFILE
                        echo Done.
                fi
        else
                echo traefik not running.
                KILLRESULT=0
        fi
        exit $KILLRESULT
}

main() {
        case $1 in
                start)  start_server ;;
                stop)   stop_server ;;
                restart)        stop_server;
                                        start_server;;
        esac
}

main $*