#!/bin/bash

tm=`date +%Y%m%d-%H%M%S`
echo "====================================================="
echo "Starting <${tm}>"

# set constant variables
pmodule=zuul
pvport=15100
pport=15100
pnetwork="bridge"
pdelete=""
pstop=""
pip="192.168.3.221"
pipmask=24
pmask="192.168.3.1"
pnum=2

show_usage="args: [-m, -v, -p, -pn, -d, -s, -ip, -im, -mk, -n]\
                                  [--pmodule, --pvport=, --pport=, --pnetwork=, --pdelete=, --pstop=, --pip=, --pipmask=, --pmask=, --pnum=]"

GETOPT_ARGS=`getopt -o m:v:p:d:s:ip:im:mk:pn:n: -al pmodule:,pvport:,pport:,pnetwork:,pdelete:,pstop:,pip:,pipmask:,pmask:,pnum: -- "$@"`
# echo "$GETOPT_ARGS"
eval set -- "$GETOPT_ARGS"

while [ -n "$1" ]
do
        case "$1" in
		-m|--pmodule) pmodule=$2; shift 2;;
		-v|--pvport) pvport=$2; shift 2;;
		-p|--pport) pport=$2; shift 2;;
		-d|--pdelete) pdelete=$2; shift 2;;
		-s|--pstop) pstop=$2; shift 2;;
		-ip|--pip) pip=$2; shift 2;;
		-im|--pipmask) pipmask=$2; shift 2;;
		-mk|--pmask) pmask=$2; shift 2;;
		-pn|--pnetwork) pnetwork=$2; shift 2;;
		-n|--pnum) pnum=$2; shift 2;;
		--) break ;;
		*) echo $1,$2,$show_usage; break ;;
        esac
done

if [[ -z $pmodule ]]; then
        echo $show_usage
        exit 0
fi

base_container_name=${pmodule}-${pport}

# get container sn
sn=`sudo docker ps -a | grep ${pmodule} | wc -l`
echo "Has ${sn} container of ${pmodule}"
# get container id
# container_id=`sudo docker ps -a | grep ${pmodule} | awk -F '[ ]+' 'NR==1{print $1}'`
all_container_id=`sudo docker ps -a | grep ${pmodule} | awk -F '[ ]+' '{print $1}' | tr "\n" " " | sed -e 's/,$/\n/'`
echo "All container id is ${all_container_id}"
gt_container_id=`sudo docker ps -a | grep ${pmodule} | awk 'NR>2' | awk -F '[ ]+' '{print $1}' | tr "\n" " " | sed -e 's/,$/\n/'`
echo "Great ${pnum} container id is ${gt_container_id}"

# get image name
isn=`sudo docker images | grep ${pmodule} | wc -l`
echo "Has ${isn} image of ${pmodule}"
image_name=`sudo docker images | grep ${pmodule} | awk -F '[ ]+' 'NR==1{print $1}'`
# get image latest tag
image_tag=`sudo docker images | grep ${pmodule} | awk -F '[ ]+' 'NR==1{print $2}'`
# get image latest tag id
image_id=`sudo docker images | grep ${pmodule} | awk -F '[ ]+' 'NR==1{print $3}'`
all_image_id=`sudo docker images | grep ${pmodule} | awk -F '[ ]+' '{print $3}' | tr "\n" " " | sed -e 's/,$/\n/'`
echo "All image id is ${all_image_id}"
gt_image_id=`sudo docker images | grep ${pmodule} | awk 'NR>2' | awk -F '[ ]+' '{print $3}' | tr "\n" " " | sed -e 's/,$/\n/'`
echo "Great ${pnum} images id is ${gt_image_id}"

if [ -n "$pstop" ] && [ -n "$all_container_id" ]; then
	echo "stop container ${all_container_id}"
	sudo docker stop ${all_container_id}
fi

if [ -n "$pdelete" ] && [ -n "$gt_container_id" ]; then
	echo "remove container ${gt_container_id}"
	sudo docker rm -f ${gt_container_id}
fi

if [ -n "$pdelete" ] && [ -n "$gt_image_id" ]; then
	echo "remove image ${gt_image_id}"
	sudo docker rmi -f ${gt_image_id}
fi

# genate docker container start command
container_name=${base_container_name}-`cat /proc/sys/kernel/random/uuid| cksum | cut -f1 -d" "`
echo "Starting container ${container_name} of image ${image_name}:${image_tag}"

if [ "bridge" == "${pnetwork}" ]; then
	echo "New container's network is bridge."
	sudo docker run -d -i -t -p ${pport}:${pvport} --name ${container_name} --network bridge ${image_name}:${image_tag}
elif [ "host" == "${pnetwork}" ]; then
	echo "New container's network is host."
	sudo docker run -d -i -t -p ${pport}:${pvport} --name ${container_name} --network host ${image_name}:${image_tag}
elif [ "overlay" == "${pnetwork}" ]; then
	echo "New container's network is overlay."
	sudo docker run -d -i -t -p ${pport}:${pvport} --name ${container_name} --network overlay ${image_name}:${image_tag}	
else
	echo "New container's network is bridge."
	sudo docker run -d -i -t -p ${pport}:${pvport} --name ${container_name} --network bridge ${image_name}:${image_tag}
fi

container_ip=`sudo docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' ${container_name}`
echo "${container_name} ip $container_ip"

# create vnet
# sudo pipework br0 ${container_name} ${ip}/${pipmask}@${pmask}
# sudo pipework br0 ${container_name} dhcp
# sudo docker restart ${container_name}