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path: root/test/mocks/mass-pnf-sim/pnf-sim-lightweight/simulator.sh
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#!/usr/bin/env bash

set -euo pipefail

COMPOSE_FILE_NAME=docker-compose.yml
NETOPEER_CONTAINER_NAME=netopeer
SIMULATOR_CONTAINER_NAME=pnf-simulator
SIMULATOR_PORT=5000

SIMULATOR_BASE=http://localhost:$SIMULATOR_PORT/simulator/
SIMULATOR_START_URL=$SIMULATOR_BASE/start
SIMULATOR_STOP_URL=$SIMULATOR_BASE/stop
SIMULATOR_STATUS_URL=$SIMULATOR_BASE/status

RUNNING_COMPOSE_CONFIG=$COMPOSE_FILE_NAME

function main(){

    COMMAND=${1:-"help"}

    case $COMMAND in
    	"compose")
            compose $2 $3 $4 $5 $6 $7 $8 $9 "${10}" "${11}" "${12}" "${13}" "${14}" ;;
             #IPGW, #IPSUBNET, #I, #URLVES, #IPPNFSIM, #IPFILESERVER, #TYPEFILESERVER, #PORTSFTP, #PORTFTPS, #IPFTPS, #IPSFTP, #FTPS_PASV_MIN, #FTPS_PAST_MAX
        "build")
            build_image;;
        "start")
            start $COMPOSE_FILE_NAME;;
        "stop")
            if [[ -z ${2+x} ]]
            then
               echo "Error: action 'stop' requires the instance identifier"
               exit 1
            fi
            stop $2;;
        "run-simulator")
            run_simulator;;
        "trigger-simulator")
            trigger_simulator;;
        "stop-simulator")
            stop_simulator;;
        "status")
             get_status;;
        "clear-logs")
             clear_logs;;
        *)
            print_help;;
    esac
}


function get_pnfsim_ip() {

	export IPPNFSIM=$(cat ./config/config.yml | grep ippnfsim | awk -F'[ ]' '{print $2}')
	echo "PNF-Sim IP: " $IPPNFSIM
	
	export SIMULATOR_BASE=http://$IPPNFSIM:$SIMULATOR_PORT/simulator/
	export SIMULATOR_START_URL=$SIMULATOR_BASE/start
	export SIMULATOR_STOP_URL=$SIMULATOR_BASE/stop
	export SIMULATOR_STATUS_URL=$SIMULATOR_BASE/status
}

function compose(){
	#creating custom docker-compose based on IP arguments
	#creting config.json by injecting the same IP
	
	export IPGW=$1
	export IPSUBNET=$2
	export I=$3
	export URLVES=$4
	export IPPNFSIM=$5
	export IPFILESERVER=$6
	export TYPEFILESERVER=$7
	export PORTSFTP=$8
	export PORTFTPS=$9
	export IPFTPS=${10}
	export IPSFTP=${11}
	export FTPS_PASV_MIN=${12}
	export FTPS_PASV_MAX=${13}
	LOCALTIME=$(ls -l /etc/localtime)
	export TIMEZONE=${LOCALTIME//*zoneinfo\/}

	#will insert $I to distinguish containers, networks properly
	#docker compose cannot substitute these, as they are keys, not values.
	envsubst < docker-compose-template.yml > docker-compose-temporary.yml
	#variable substitution
	docker-compose -f docker-compose-temporary.yml config > docker-compose.yml
	rm docker-compose-temporary.yml

	./ROP_file_creator.sh $I &

	write_config $URLVES $IPFILESERVER $TYPEFILESERVER $PORTSFTP $PORTFTPS $IPPNFSIM

	pushd config
	envsubst < vsftpd_ssl-TEMPLATE.conf > vsftpd_ssl.conf
	popd
}

function build_image(){
    if [ -f pom.xml ]; then
        mvn clean package docker:build -Dcheckstyle.skip
    else
        echo "pom.xml file not found"
        exit 1
    fi
}

function set_vsftpd_file_owner() {
    # This is to avoid "500 OOPS: cannot open config file"
    # on vsftpd daemon start
    sudo chown root ./config/vsftpd_ssl.conf
}


function write_config(){
	#building a YML file for usage in Java
	echo "urlves: $1" > config/config.yml
	echo "urlsftp: sftp://onap:pano@$2:$4" >> config/config.yml
	echo "urlftps: ftps://onap:pano@$2:$5" >> config/config.yml
	echo "ippnfsim: $6" >> config/config.yml
	echo "typefileserver: $3" >> config/config.yml
}

function start(){
    get_pnfsim_ip
    if [[ $(running_containers) ]]; then
        echo "Simulator containers are already up"
    else
        echo "Starting simulator containers using netconf model specified in config/netconf.env"
        set_vsftpd_file_owner
        archive_logs
        docker-compose -f $1 up -d
        RUNNING_COMPOSE_CONFIG=$1
    fi
}

function running_containers(){
   docker-compose -f $COMPOSE_FILE_NAME ps -q
}

function stop(){
    get_pnfsim_ip

    set +e # override global script setting
    declare -a pids_to_kill
    # get ROP_file_creator.sh instance pid
    pids_to_kill[0]=$(pgrep -f "ROP_file_creator.sh ${1}$")
    if [[ ! -z ${pids_to_kill[0]} ]];
    then
        # get ROP_file_creator.sh childs pids
        pids_to_kill=(${pids_to_kill[@]} $(pgrep -P ${pids_to_kill[0]}))
        kill ${pids_to_kill[@]}
    else
        echo "ROP_file_creator.sh already not running"
    fi

    if [[ $(running_containers) ]]; then
        docker-compose -f $RUNNING_COMPOSE_CONFIG down
        docker-compose -f $RUNNING_COMPOSE_CONFIG rm
    else
        echo "Simulator containers are already down"
    fi
}

function trigger_simulator(){
    get_pnfsim_ip
    cat << EndOfMessage
Simulator response:
$(curl -s -X POST -H "Content-Type: application/json" -H "X-ONAP-RequestID: 123" -H "X-InvocationID: 456" -d @config/config.json $SIMULATOR_START_URL)
EndOfMessage
}

function run_simulator(){
    get_pnfsim_ip
    cat << EndOfMessage
Simulator response:
$(curl -s -X POST -H "Content-Type: application/json" -H "X-ONAP-RequestID: 123" -H "X-InvocationID: 456" -d @config/$CONFIG_JSON $SIMULATOR_START_URL)
EndOfMessage
}

function stop_simulator(){
    get_pnfsim_ip
    cat << EndOfMessage
Simulator response:
$(curl -s -X POST $SIMULATOR_STOP_URL)
EndOfMessage
}

function get_status(){
    if [[ $(running_containers) ]]; then
        print_status
    else
        echo "Simulator containers are down"
    fi
}

function print_status(){
    get_pnfsim_ip
    cat << EndOfMessage
$(docker-compose -f $RUNNING_COMPOSE_CONFIG ps)

Simulator response:
$(curl -s -X GET $SIMULATOR_STATUS_URL)
EndOfMessage
}

function print_help(){
cat << EndOfMessage
Available options:
build - locally builds simulator image from existing code
start - starts simulator and netopeer2 containers using remote simulator image and specified model name
compose - customize the docker-compose and configuration based on arguments
trigger-simulator - start monitoring the ROP files and report periodically
run-simulator - starts sending PNF registration messages with parameters specified in config.json
stop-simulator - stop sending PNF registration messages
stop - stops both containers
status - prints simulator status
clear-logs - deletes log folder

Starting simulation:
- Setup the instance of this simulator by:
  - ./simulator.sh compose IPGW IPSUBNET I URLVES IPPNFSIM IPFILESERVER TYPEFILESERVER PORTSFTP PORTFTPS IPFTPS IPSFTP
	where IPGW and IPSUBNET will be used for docker network
	where I is the integer suffix to differentiate instances
	where URLVES is the URL of the VES collector
	where IPPNFSIM, IPFILESERVER, IPFTPS, IPSFTP are the IP addresses for containers
    where TYPEFILESERVER is the type of fileserver, i.e., FTPS or SFTP
	where PORTSFTP, PORTFTPS are the SFTP and FTPS ports
	e.g. ./simulator.sh compose 10.11.0.65 10.11.0.64 3 http://10.11.0.69:10000/eventListener/v7 10.11.0.2 10.11.0.66 ftps 2001 2002 10.11.0.67 10.11.0.68

- Setup environment with "./simulator.sh start". It will download required docker images from the internet and run them on docker machine
- To start the simulation use "./simulator.sh run-simulator", which will start sending PNF registration messages with parameters specified in config.json    {TODO, might not be needed}

To stop simulation use "./simulator.sh stop-simulator" command. To check simulator's status use "./simulator.sh status".
If you want to change message parameters simply edit config.json, then start the simulation with "./simulator.sh run-simulator" again
Logs are written to logs/pnf-simulator.log.

If you change the source code you have to rebuild image with "./simulator.sh build" and run "./simulator.sh start" again
EndOfMessage
}

function archive_logs(){

    if [ -d logs ]; then
        echo "Moving log file to archive"
        DIR_PATH=logs/archive/simulator[$(timestamp)]
        mkdir -p $DIR_PATH
        if [ -f logs/pnfsimulator.log ]; then
           mv logs/pnfsimulator.log $DIR_PATH
        fi

        if [ -f logs/*.xml ]; then
            mv logs/*.xml $DIR_PATH
        fi

    else
        mkdir logs
    fi
}

function clear_logs(){

    if [[ $(running_containers) ]]; then
        echo "Cannot delete logs when simulator is running"
    else
         rm -rf logs
    fi
}

function timestamp(){
    date "+%Y-%m-%d_%T"
}

main $@