add

Makefile

@@ -0,0 +1,52 @@
+
+DIR:=$(strip $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST)))))
+mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST)))
+current_dir := $(notdir $(patsubst %/,%,$(dir $(mkfile_path))))
+RHOST=
+
+SHELL := /bin/bash
+
+.PHONY: create help start stop list clean
+
+help:
+	@echo "" ; 
+	@echo ""                ;
+	@echo "--------------"  ;
+	@echo " SwarmLab.io "   ;
+	@echo "--------------"  ;
+	@echo ""                ;
+	@echo " USAGE: make [COMMAND]" ;
+	@echo ""  ;
+	@echo " Examples of [COMMAND] can be:"  ;
+	@echo ""  ;
+	@echo "      create: create service "  ;
+	@echo ""  ;
+	@echo "      start: start service "  ;
+	@echo ""  ;
+	@echo "      stop: shutdown service"  ;
+	@echo ""  ;
+	@echo "      clean: remove images in the system"  ;
+	@echo ""  ;
+	@echo "      list: show running containers of instance"  ;
+	@echo ""  ;
+	@echo "      help: show this message"  ;
+	@echo ""  ;
+	@echo "More info:"  ;
+	@echo "http://docs.swarmlab.io/SwarmLab-HowTos/swarmlab/docs/swarmlab/docs/index.html"  ;
+	@echo ""  ;
+	@echo ""  ;
+
+create:
+	@./install/usr/share/swarmlab.io/sec/swarmlab-sec create 2>/dev/null ; true
+
+start:
+	@./install/usr/share/swarmlab.io/sec/swarmlab-sec up 2>/dev/null ; true
+
+list:
+	@./install/usr/share/swarmlab.io/sec/swarmlab-sec list 2>/dev/null ; true
+
+stop:
+	@./install/usr/share/swarmlab.io/sec/swarmlab-sec down 2>/dev/null ; true
+
+clean:
+	@./install/usr/share/swarmlab.io/sec/swarmlab-sec clean 2>/dev/null ; true

README.md

@@ -1,2 +1,93 @@
-# microservice-luajit
+## Swarmlab is a collection of services that aims to
 
+ > -    provide teachers and professors with online remote tools to do their lessons
+ > 
+ > -    give students the opportunity to study real life examples in their chosen area of expertise
+ > 
+ > -    allow developers to fully test and debug their applications and provide POC’s
+ > 
+ > -    or you simply want to use a Application (in a microservices-based architecture)
+ > 
+ >  Swarmlab provides you with all the required tools, tools to teach work or try out demos in a completely virtual environment.
+ > 
+ > More info: http://docs.swarmlab.io/SwarmLab-HowTos/swarmlab/docs/swarmlab/docs/index.html
+
+
+
+
+![alt text](images/swarmlab-network.png "")
+
+##  LabInstance luaJIT
+
+LuaJIT is a Just-In-Time Compiler (JIT) for the Lua programming language. Lua is a powerful, dynamic and light-weight programming language. It may be embedded or used as a general-purpose, stand-alone language. 
+
+## Quickstart
+
+This is a quickstart guide of howto use this 
+
+
+### Default Configuration 
+
+- Working Directory
+
+> /home/docker/project
+
+- Default user
+
+> docker
+
+- Default password
+
+> docker
+
+- Default password4root
+
+> pass
+
+
+
+### RUN INSTANCE
+
+Swarmlab services can be run in different ways. 
+
+- You can run them **through the swarmlab hybrid environment** (http://docs.swarmlab.io/SwarmLab-HowTos/swarmlab/docs/swarmlab/docs/hybrid/start-microservices.html)
+- or use them individually at will on the **command line of your system**
+
+
+
+#### CLI
+
+> git clone ...
+>
+> cd [DIRECTORY]
+>
+
+#### help
+>
+> make help
+>
+
+#### create service
+>
+> make create
+>
+
+#### start service
+>
+> make start
+>
+
+#### stop service
+>
+> make stop
+>
+
+#### list service
+>
+> make list
+>
+
+#### clean service
+>
+> make clean
+>

check-open.sh

@@ -0,0 +1,15 @@
+function EPHEMERAL_PORT() {
+    LOW_BOUND=49152
+    RANGE=16384
+    while true; do
+        CANDIDATE=$[$LOW_BOUND + ($RANDOM % $RANGE)]
+        (echo "" >/dev/tcp/127.0.0.1/${CANDIDATE}) >/dev/null 2>&1
+        if [ $? -ne 0 ]; then
+            echo $CANDIDATE
+            break
+        fi
+    done
+}
+
+port=$(EPHEMERAL_PORT)
+echo $port

install/etc/bash_completion.d/swarmlab-mpi-autocompletion.sh

@@ -0,0 +1,30 @@
+#/usr/bin/env bash
+_mpi()
+{
+  local commands_number=${DOTHIS_COMPLETION_COMMANDS_NUMBER:-50}
+  local IFS=$'\n'
+  local suggestions=($(compgen -W "$(cat $1 | sed 's/\t//')" -- "${COMP_WORDS[1]}"))
+  local sug=1
+  if [ "${#suggestions[@]}" == "$sug" ]; then
+    local number="${suggestions[0]/%\ */}"
+    COMPREPLY=("$number")
+  else
+    for i in "${!suggestions[@]}"; do
+      suggestions[$i]="$(printf '%*s' "-$COLUMNS"  "${suggestions[$i]}")"
+    done
+
+    COMPREPLY=("${suggestions[@]}")
+  fi
+}
+_mpi_completions()
+{
+  local LAB_files=${LAB_PATH}
+  if [ "${#COMP_WORDS[@]}" == "2" ] && [ "${#COMP_WORDS[@]}" != "3"  ]; then
+    local file2="/usr/share/swarmlab.io/mpi/commands"
+    _mpi "$file2" 1
+  fi
+
+  
+}
+complete -F _mpi_completions swarmlab-mpi
+

install/etc/profile.d/swarmlab-mpi.sh

@@ -0,0 +1 @@
+export PATH=$PATH:/usr/share/swarmlab.io/mpi

install/usr/share/swarmlab.io/sec/.bashrc

@@ -0,0 +1,127 @@
+# ~/.bashrc: executed by bash(1) for non-login shells.
+# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
+# for examples
+
+# If not running interactively, don't do anything
+case $- in
+    *i*) ;;
+      *) return;;
+esac
+
+# don't put duplicate lines or lines starting with space in the history.
+# See bash(1) for more options
+HISTCONTROL=ignoreboth
+
+# append to the history file, don't overwrite it
+shopt -s histappend
+
+# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
+HISTSIZE=1000
+HISTFILESIZE=2000
+
+# check the window size after each command and, if necessary,
+# update the values of LINES and COLUMNS.
+shopt -s checkwinsize
+
+# If set, the pattern "**" used in a pathname expansion context will
+# match all files and zero or more directories and subdirectories.
+#shopt -s globstar
+
+# make less more friendly for non-text input files, see lesspipe(1)
+[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"
+
+# set variable identifying the chroot you work in (used in the prompt below)
+if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
+    debian_chroot=$(cat /etc/debian_chroot)
+fi
+
+# set a fancy prompt (non-color, unless we know we "want" color)
+case "$TERM" in
+    xterm-color|*-256color) color_prompt=yes;;
+esac
+
+# uncomment for a colored prompt, if the terminal has the capability; turned
+# off by default to not distract the user: the focus in a terminal window
+# should be on the output of commands, not on the prompt
+#force_color_prompt=yes
+
+if [ -n "$force_color_prompt" ]; then
+    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
+	# We have color support; assume it's compliant with Ecma-48
+	# (ISO/IEC-6429). (Lack of such support is extremely rare, and such
+	# a case would tend to support setf rather than setaf.)
+	color_prompt=yes
+    else
+	color_prompt=
+    fi
+fi
+
+if [ "$color_prompt" = yes ]; then
+    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
+else
+    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
+fi
+unset color_prompt force_color_prompt
+
+# If this is an xterm set the title to user@host:dir
+case "$TERM" in
+xterm*|rxvt*)
+    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
+    ;;
+*)
+    ;;
+esac
+
+# enable color support of ls and also add handy aliases
+if [ -x /usr/bin/dircolors ]; then
+    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
+    alias ls='ls --color=auto'
+    #alias dir='dir --color=auto'
+    #alias vdir='vdir --color=auto'
+
+    alias grep='grep --color=auto'
+    alias fgrep='fgrep --color=auto'
+    alias egrep='egrep --color=auto'
+fi
+
+# colored GCC warnings and errors
+#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'
+
+# some more ls aliases
+alias ll='ls -alF'
+alias la='ls -A'
+alias l='ls -CF'
+
+# Add an "alert" alias for long running commands.  Use like so:
+#   sleep 10; alert
+alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'
+
+# Alias definitions.
+# You may want to put all your additions into a separate file like
+# ~/.bash_aliases, instead of adding them here directly.
+# See /usr/share/doc/bash-doc/examples in the bash-doc package.
+
+if [ -f ~/.bash_aliases ]; then
+    . ~/.bash_aliases
+fi
+
+if [ -d /etc/profile.d ]; then
+  for i in /etc/profile.d/*.sh; do
+    if [ -r $i ]; then
+      . $i
+    fi
+  done
+  unset i
+fi
+
+
+# enable programmable completion features (you don't need to enable
+# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
+# sources /etc/bash.bashrc).
+if ! shopt -oq posix; then
+  if [ -f /usr/share/bash-completion/bash_completion ]; then
+    . /usr/share/bash-completion/bash_completion
+  elif [ -f /etc/bash_completion ]; then
+    . /etc/bash_completion
+  fi
+fi

install/usr/share/swarmlab.io/sec/.env

@@ -0,0 +1,4 @@
+REGISTRY_ADDR=localhost
+REGISTRY_PORT=5000
+IMAGE_NAME=sec
+SSH_PORT=2222

install/usr/share/swarmlab.io/sec/.vimrc

@@ -0,0 +1,15 @@
+map <C-e> :NERDTreeToggle<CR>
+
+autocmd BufNewFile,BufRead *.vue,*.js set syntax=verilog tabstop=2|set shiftwidth=2|set noexpandtab autoindent
+augroup remember_folds
+  autocmd!
+  autocmd BufWinLeave * mkview
+  autocmd BufWinEnter * silent! loadview
+augroup END
+" Useful for my Quick Notes feature in my tmuxrc
+augroup QuickNotes
+  au BufWrite,VimLeave NOTES.otl mkview
+  au BufRead           NOTES.otl silent loadview
+augroup END
+set swapfile
+set dir=~/tmp

install/usr/share/swarmlab.io/sec/LICENSE

@@ -0,0 +1,614 @@
+GNU AFFERO GENERAL PUBLIC LICENSE
+
+Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <http s ://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license
+document, but changing it is not allowed.
+
+Preamble
+
+The GNU Affero General Public License is a free, copyleft license for software
+and other kinds of works, specifically designed to ensure cooperation with
+the community in the case of network server software.
+
+The licenses for most software and other practical works are designed to take
+away your freedom to share and change the works. By contrast, our General
+Public Licenses are intended to guarantee your freedom to share and change
+all versions of a program--to make sure it remains free software for all its
+users.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for them if you wish), that
+you receive source code or can get it if you want it, that you can change
+the software or use pieces of it in new free programs, and that you know you
+can do these things.
+
+Developers that use our General Public Licenses protect your rights with two
+steps: (1) assert copyright on the software, and (2) offer you this License
+which gives you legal permission to copy, distribute and/or modify the software.
+
+A secondary benefit of defending all users' freedom is that improvements made
+in alternate versions of the program, if they receive widespread use, become
+available for other developers to incorporate. Many developers of free software
+are heartened and encouraged by the resulting cooperation. However, in the
+case of software used on network servers, this result may fail to come about.
+The GNU General Public License permits making a modified version and letting
+the public access it on a server without ever releasing its source code to
+the public.
+
+The GNU Affero General Public License is designed specifically to ensure that,
+in such cases, the modified source code becomes available to the community.
+It requires the operator of a network server to provide the source code of
+the modified version running there to the users of that server. Therefore,
+public use of a modified version, on a publicly accessible server, gives the
+public access to the source code of the modified version.
+
+An older license, called the Affero General Public License and published by
+Affero, was designed to accomplish similar goals. This is a different license,
+not a version of the Affero GPL, but Affero has released a new version of
+the Affero GPL which permits relicensing under this license.
+
+The precise terms and conditions for copying, distribution and modification
+follow.
+
+TERMS AND CONDITIONS
+
+   0. Definitions.
+
+   "This License" refers to version 3 of the GNU Affero General Public License.
+
+"Copyright" also means copyright-like laws that apply to other kinds of works,
+such as semiconductor masks.
+
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+
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+
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+Software Foundation, either version 3 of the License, or (at your option)
+any later version.
+
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+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+details.
+
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+with this program. If not, see <http s ://www.gnu.org/licenses/>.
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+Also add information on how to contact you by electronic and paper mail.
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+
+You should also get your employer (if you work as a programmer) or school,
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+s ://www.gnu.org/licenses/>.

install/usr/share/swarmlab.io/sec/ROOT_PASSWORD

@@ -0,0 +1 @@
+ROOT_PASSWORD="pass"

install/usr/share/swarmlab.io/sec/auto_update_hosts

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+hosts=$(get_hosts)
+printf "%s" "$hosts" > "$1"
+
+while sleep 2
+do
+  current_hosts=$(get_hosts)
+  [ "$hosts" != "$current_hosts" ] && printf "%s" "$current_hosts" > "$1"
+  hosts=$current_hosts
+done

install/usr/share/swarmlab.io/sec/commands

@@ -0,0 +1,13 @@
+create       create project      (swarmlab-sec create)
+up           start swarmlab-sec  (swarmlab-sec up size=10)
+scale        resize swarmlab-sec (swarmlab-sec scale size=30)
+reload       rebuild image       (swarmlab-sec reload size=15)
+login        login swarmlab-sec  (swarmlab-sec login)
+exec         execute command     (swarmlab-sec exec [SHELL COMMAND])
+down         stop swarmlab-sec   (swarmlab-sec down)
+clean        clean project       (swarmlab-sec clean)
+list         show instances      (swarmlab-sec list)
+help         show help           (swarmlab-sec help)
+
+
+

install/usr/share/swarmlab.io/sec/get_hosts

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# Include the variables that store the Docker service names
+# shellcheck disable=SC1091
+. /etc/opt/service_names
+
+localip=$(ip addr show dev eth0 | grep "inet " | cut -d ' ' -f 6  | cut -f 1 -d '/')
+nmap -sP "$localip/24" | grep Nmap | cut -d' ' -f5 | grep "_$MPI_WORKER_SERVICE_NAME_" > /project/hosts

install/usr/share/swarmlab.io/sec/install-vim-plugin.sh

@@ -0,0 +1,74 @@
+#! /usr/bin/env sh
+
+start_dir=$(pwd)
+bin_string="export PATH=\"${PATH}:${HOME}/.vimpkg/bin\""
+
+# Download the apt-vim files
+curl -fSsLo ${HOME}/apt-vim/apt-vim --create-dirs \
+    https://raw.githubusercontent.com/egalpin/apt-vim/master/apt-vim
+
+curl -fSsLo ${HOME}/apt-vim/vim_config.json \
+    https://raw.githubusercontent.com/egalpin/apt-vim/master/vim_config.json
+
+# Add vimrc if there isn't one already
+[ -f ${HOME}/.vimrc ] || touch ${HOME}/.vimrc
+
+# Make sure vimrc is using pathogen
+if [ $(grep -c "execute pathogen#infect()" ${HOME}/.vimrc) -eq 0 ]; then
+    echo "execute pathogen#infect()" >> ${HOME}/.vimrc
+fi
+if [ $(grep -c "call pathogen#helptags()" ${HOME}/.vimrc) -eq 0 ]; then
+    echo "call pathogen#helptags()" >> ${HOME}/.vimrc
+fi
+
+# Update path for executing shell
+eval "$bin_string"
+
+added_to_profile=false
+already_present=false
+for rc in bashrc zshrc bash_profile; do
+  if [ -s "$HOME/.$rc" ]; then
+    if grep -q "$bin_string" "$HOME/.$rc"; then
+      already_present=true
+    else
+      printf "\n$bin_string\n" >> "$HOME/.$rc"
+      printf "== Added apt-vim PATH to '~/.$rc'\n"
+      added_to_profile=true
+    fi
+  fi
+done
+
+# Execute apt-vim init
+cd ${HOME}/apt-vim
+python - <<EOF
+import imp, os
+print('apt-vim setup starting')
+HOME = os.path.expanduser("~")
+APT_VIM_DIR = os.path.abspath(os.path.join(HOME, 'apt-vim'))
+SCRIPT_ROOT_DIR = os.path.abspath(os.path.join(HOME, '.vimpkg'))
+BIN_DIR = os.path.abspath(os.path.join(SCRIPT_ROOT_DIR, 'bin'))
+os.environ['PATH'] += os.pathsep + BIN_DIR
+os.chdir(APT_VIM_DIR)
+
+aptvim = imp.load_source("aptvim", "./apt-vim")
+av = aptvim.aptvim(ASSUME_YES=True, VIM_CONFIG='', INSTALL_TARGET='')
+av.first_run()
+av.handle_install(None, None, None)
+EOF
+python_result=$?
+
+cd $start_dir
+
+echo
+if [ "$python_result" -ne 0 ]; then
+    echo "== Error:"
+    echo "   Installation failed."
+elif [ "$added_to_profile" = false ] && [ "$already_present" = false ]; then
+    echo "== Error:"
+    echo "   Found no profile to add apt-vim PATH to."
+    echo "   Add the following line to your shell profile and source it to install manually:"
+    printf "   $bin_string\n"
+else
+    echo "== apt-vim installation succeeded! Run 'source ~/.bashrc || source ~/.bash_profile' or 'source ~/.zshrc'"
+    echo "   to access the executable script."
+fi

install/usr/share/swarmlab.io/sec/project/bin/swarmlab-nmap

@@ -0,0 +1,6 @@
+#/bin/sh
+
+#ip=`nslookup hybrid-mpi_master_1.hybrid-mpi_hybrid-mpi | grep Addr | cut -d':' -f2 | grep -v 127.0.`
+ip=`nslookup $NODENAME | grep Addr | cut -d':' -f2 | grep -v 127.0.`
+nmap -sn -oG - $ip/24 | grep Up | grep $NODENETWORK | cut -d ' ' -f 2
+

install/usr/share/swarmlab.io/sec/project/courses/README

@@ -0,0 +1 @@
+Course examples

install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/client.js

@@ -0,0 +1,31 @@
+
+const app = require('express')();
+const http = require('http').Server(app);
+var path = require('path');
+
+options = {
+        secure:true,
+        reconnect: true,
+        rejectUnauthorized : false
+};
+
+
+var io2 = require('socket.io-client');
+var socket = io2.connect('http://localhost:8084', options);
+
+var msg2 = "c= 120";
+socket.emit('log', msg2);
+
+/*
+var io = require('socket.io')(http);
+
+app.get('/log', (req, res) => {
+  socket.emit('log', 'send from get');
+  res.send('<h1>send</h1>');
+});
+
+http.listen(8085, () => {
+  console.log('listening on *:8085');
+});
+*/
+

install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/mongo.js

@@ -0,0 +1,109 @@
+var path = require('path');
+var app = require('express')();
+var http = require('http').Server(app);
+var io = require('socket.io')(http);
+const MongoClient = require('mongodb').MongoClient;
+
+
+app.get('/test', (req, res) => {
+
+		var user="swarmlab"
+		var pass="swarmlab"
+
+		/*
+		use admin
+		db.createUser(
+			 {
+				 user: "test1",
+				 pwd: 'newpass',      // Or  "<cleartext password>"
+				 roles: [ { role: "readWrite", db: "app_swarmlab" } ],
+				 authenticationRestrictions: [ {
+						clientSource: ["192.168.1.7"],
+						serverAddress: ["192.168.80.2", "192.168.80.3", "192.168.80.4"]
+				 } ]
+			 }
+		)
+		*/
+
+	 var mongourl = "mongodb://"+user+":"+pass+"@swarmlabmongo1:27017,swarmlabmongo2:27017,swarmlabmongo1:27017/app_swarmlab?replicaSet=rs0&authSource=admin&w=1"
+	 const OPTS = {
+			useNewUrlParser: true,
+			useUnifiedTopology: true,
+			//poolSize: 10,
+			tls: false
+		};
+
+		const client = new MongoClient(mongourl,OPTS);
+
+		client.on('serverDescriptionChanged', function(event) {
+			console.log('received serverDescriptionChanged');
+			console.log(JSON.stringify(event, null, 2));
+		});
+
+		client.on('serverHeartbeatStarted', function(event) {
+			console.log('received serverHeartbeatStarted');
+			console.log(JSON.stringify(event, null, 2));
+		});
+
+		client.on('serverHeartbeatSucceeded', function(event) {
+			console.log('received serverHeartbeatSucceeded');
+			console.log(JSON.stringify(event, null, 2));
+		});
+
+		client.on('serverHeartbeatFailed', function(event) {
+			console.log('received serverHeartbeatFailed');
+			console.log(JSON.stringify(event, null, 2));
+		});
+
+		client.on('serverOpening', function(event) {
+			console.log('received serverOpening');
+			console.log(JSON.stringify(event, null, 2));
+		});
+
+		client.on('serverClosed', function(event) {
+			console.log('received serverClosed');
+			console.log(JSON.stringify(event, null, 2));
+		});
+
+		client.on('topologyOpening', function(event) {
+			console.log('received topologyOpening');
+			console.log(JSON.stringify(event, null, 2));
+		});
+
+		client.on('topologyClosed', function(event) {
+			console.log('received topologyClosed');
+			console.log(JSON.stringify(event, null, 2));
+		});
+
+		client.on('topologyDescriptionChanged', function(event) {
+			console.log('received topologyDescriptionChanged');
+			console.log(JSON.stringify(event, null, 2));
+		});
+
+		client.connect(function(err, client) {
+			if(err) throw err;
+
+				const db = client.db('app_swarmlab');
+					db.collection('logs').find({}).toArray()
+						.then(item => {
+								console.log('item '+JSON.stringify(item))
+								for (let i in item) {
+									console.log(JSON.stringify('items' + item[i]))
+								 }
+							})
+		});
+
+		res.send('<h1>Hello world!</h1>');
+});
+
+io.on('connection', s => {
+      console.error('socket connection');
+
+   s.on('log', (data, room) => {
+      console.log('broadcast', data);
+  });
+
+});
+
+http.listen(8084, () => console.error('listening on http://localhost:8084/'));
+console.error('socket.io example');

install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/server.js

@@ -0,0 +1,24 @@
+var path = require('path');
+var app = require('express')();
+var http = require('http').Server(app);
+var io = require('socket.io')(http);
+
+
+app.get('/', (req, res) => {
+  res.send('<h1>Hello world!</h1>');
+});
+
+
+io.on('connection', s => {
+      console.error('socket connection');
+
+   s.on('log', (data, room) => {
+      console.log('broadcast', data);
+  });
+
+
+});
+
+
+http.listen(8084, () => console.error('listening on http://localhost:8084/'));
+console.error('socket.io example');

install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/package.json

@@ -0,0 +1,8 @@
+{
+  "dependencies": {
+    "express": "^4.17.1",
+    "mongodb": "^3.6.5",
+    "socket.io": "^4.0.0",
+    "socket.io-client": "^4.0.0"
+  }
+}

install/usr/share/swarmlab.io/sec/project/courses/nodeAppServer/app/app.js

@@ -0,0 +1,107 @@
+var express = require('express');
+var http = require('http');
+const MongoClient = require('mongodb').MongoClient;
+
+var PORT = 8085;
+
+var app = express();
+app.get('/', function(req, res) {
+	var RES ={}
+    	var message = req.query["log"]
+
+	// Connection URL
+	var database   = "app_swarmlab"
+	var user  	 = "swarmlab"
+	var password 	 = "swarmlab"
+	var collection = "logs"
+	var replica_set = "rs0"
+	var nodes = "swarmlabmongo1:27017,swarmlabmongo2:27017,swarmlabmongo3:27017"
+	//var url = `mongodb://${user}:${password}@${nodes}/${database}?replicaSet=${replica_set}&authSource=admin`
+
+ var mongourl = "mongodb://"+user+":"+password+"@swarmlabmongo1:27017,swarmlabmongo2:27017,swarmlabmongo3:27017/app_swarmlab?replicaSet=rs0&authSource=admin&w=1"
+   const OPTS = {
+      useNewUrlParser: true,
+      useUnifiedTopology: true,
+      //poolSize: 10,
+      tls: false
+    };
+
+    const client = new MongoClient(mongourl,OPTS);
+
+    client.on('serverDescriptionChanged', function(event) {
+      console.log('received serverDescriptionChanged');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+    client.on('serverHeartbeatStarted', function(event) {
+      console.log('received serverHeartbeatStarted');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+    client.on('serverHeartbeatSucceeded', function(event) {
+      console.log('received serverHeartbeatSucceeded');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+    client.on('serverHeartbeatFailed', function(event) {
+      console.log('received serverHeartbeatFailed');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+    client.on('serverOpening', function(event) {
+      console.log('received serverOpening');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+    client.on('serverClosed', function(event) {
+      console.log('received serverClosed');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+    client.on('topologyOpening', function(event) {
+      console.log('received topologyOpening');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+   client.on('topologyOpening', function(event) {
+      console.log('received topologyOpening');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+    client.on('topologyClosed', function(event) {
+      console.log('received topologyClosed');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+    client.on('topologyDescriptionChanged', function(event) {
+      console.log('received topologyDescriptionChanged');
+      console.log(JSON.stringify(event, null, 2));
+    });
+
+    client.connect(function(err, client) {
+      if(err) throw err;
+
+        const db = client.db('app_swarmlab');
+          db.collection('logs').find({}).toArray()
+            .then(item => {
+                console.log('item '+JSON.stringify(item))
+                for (let i in item) {
+                  console.log(JSON.stringify('items' + item[i]))
+                 }
+    		res.send({message: message, data:item});
+
+              })
+    });
+});
+
+app.post('/', function(req, res) {
+    var message = req.body["log"]
+    console.log(JSON.stringify(message))
+    //console.log(req)
+    res.send({message: message});
+});
+
+http.Server(app).listen(PORT, function() {
+    console.log("HTTP server listening on port %s", PORT);
+});
+

install/usr/share/swarmlab.io/sec/project/courses/nodeAppServer/package.json

@@ -0,0 +1,7 @@
+{
+    "main": "app.js",
+    "dependencies": {
+        "express": "^4.17.1",
+        "mongodb": "^3.6.6"
+    }
+}

install/usr/share/swarmlab.io/sec/project/hello_world.sh

@@ -0,0 +1 @@
+echo "Hello World"

install/usr/share/swarmlab.io/sec/sec_bootstrap

@@ -0,0 +1,76 @@
+#!/bin/sh
+
+ROLE="undefined"
+MPI_MASTER_SERVICE_NAME="sec_masterservice"
+MPI_WORKER_SERVICE_NAME="sec_workerservice"
+HOSTNAMES="/etc/nethosts"
+
+#######################
+# ARGUMENTS PARSER
+
+while [ "$1" != "" ];
+do
+    PARAM=$(echo "$1" | awk -F= '{print $1}')
+    VALUE=$(echo "$1" | awk -F= '{print $2}')
+
+    case $PARAM in
+        role)
+            [ "$VALUE" ] && ROLE=$VALUE
+            ;;
+
+        sec_master_service_name)
+            [ "$VALUE" ] && MPI_MASTER_SERVICE_NAME=$VALUE
+            ;;
+
+        sec_worker_service_name)
+            [ "$VALUE" ] && MPI_WORKER_SERVICE_NAME=$VALUE
+            ;;
+        *)
+            echo "ERROR: unknown parameter \"$PARAM\""
+            exit 1
+            ;;
+    esac
+    shift
+done
+
+
+
+cat > /etc/opt/service_names <<- EOF
+MPI_MASTER_SERVICE_NAME=${MPI_MASTER_SERVICE_NAME}
+MPI_WORKER_SERVICE_NAME=${MPI_WORKER_SERVICE_NAME}
+EOF
+
+case $ROLE in
+    "masterservice")
+
+        # Auto update default host file in background and dumb all output
+        auto_update_hosts "${HOSTNAMES}" > /dev/null 2>&1 &
+
+	   
+	ttyd -p 3787 sh
+           tail -f /dev/null
+
+        # Start ssh server
+        #/usr/sbin/sshd -D
+        ;;
+
+
+    "workerservice")
+
+        # Start ssh server in background
+        #/usr/sbin/sshd -D &
+
+        # Keep trying to connect to master node and stay there indefinitely so that master node can see
+        # the connected hosts that are ready for MPI work
+        #while sleep 1
+        #do
+            # shellcheck disable=SC2086
+          #  ssh -T -o "StrictHostKeyChecking no"   \
+           #     -i "${USER_HOME}/.ssh/id_rsa"      \
+            #    ${USER}@${MPI_MASTER_SERVICE_NAME} \
+           tail -f /dev/null
+        #done
+        ;;
+    *)
+        echo 'role argument only accepts "masterservice" or "workerservice"'
+esac

install/usr/share/swarmlab.io/sec/swarmlab-sec

@@ -0,0 +1,732 @@
+#!/bin/bash
+
+# The MIT License (MIT)
+#
+# rootApostolos@swarmlab.io
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+# Origin: https://github.com/NLKNguyen/alpine-mpich
+
+set -e
+
+DOCKERuser="docker"
+PACKAGES=$(cat <<EOF
+	net-tools  \
+	tcpdump \
+	sudo \
+	vim 
+EOF
+)
+# PACKAGES enabled ths with apt-get update && apt-get $APTPARAM install -y openssh-server $PACKAGES in in RUN export DEBIAN_FRONTEND=noninteractive 
+APTPARAM=" --no-install-recommends "
+IMAGE_local="microservice-luajit"
+HYBRID_NETWORK="microservice-luajit"
+# dont edit
+#IMAGE_origin="hub.swarmlab.io:5480/hybrid-numpy:latest"
+#IMAGE_origin="hub.swarmlab.io:5480/hybrid-hping3"
+IMAGE_origin="nickblah/luajit:2.0-alpine3.12"
+bootstrap="sec_bootstrap"
+hostnames="auto_update_hosts"
+hostnames_get="get_hosts"
+#NODENAME=${HYBRID_NETWORK}_masterservice_1.${HYBRID_NETWORK}_${HYBRID_NETWORK}
+NODENAME=${IMAGE_local}_masterservice_1.${IMAGE_local}_${HYBRID_NETWORK}
+NODENETWORK=${HYBRID_NETWORK}
+# shellcheck disable=SC1091
+#. ./.env
+
+
+# -----------------------------------------------
+# 
+#  Find Source path of swarmlab.io script
+#
+# ----------------------------------------------
+
+
+SOURCE="${BASH_SOURCE[0]}"
+while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
+  DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null 2>&1 && pwd )"
+  SOURCE="$(readlink "$SOURCE")"
+  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
+done
+DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null 2>&1 && pwd )"
+
+
+# -----------------------------------------------
+# 
+#  Load Default config swarmlab.io 
+#
+# ----------------------------------------------
+
+
+#. $DIR/.env
+
+
+# -----------------------------------------------
+# 
+#  Find Working dir 
+#
+# ----------------------------------------------
+
+function EPHEMERAL_PORT() {
+    LOW_BOUND=49152
+    RANGE=16384
+    while true; do
+        CANDIDATE=$[$LOW_BOUND + ($RANDOM % $RANGE)]
+        (echo "" >/dev/tcp/127.0.0.1/${CANDIDATE}) >/dev/null 2>&1
+        if [ $? -ne 0 ]; then
+            echo $CANDIDATE
+            break
+        fi
+    done
+}
+
+servicesshport=$(EPHEMERAL_PORT)
+
+Wdir=$(pwd)
+
+if [ ! -f $Wdir/.env ]; then
+cat << EOF > $Wdir/.env
+REGISTRY_ADDR=localhost
+REGISTRY_PORT=5000
+IMAGE_NAME=$HYBRID_NETWORK
+SSH_PORT=$servicesshport
+R_PORT1=$(EPHEMERAL_PORT)
+R_PORT2=$(EPHEMERAL_PORT)
+R_PORT3=$(EPHEMERAL_PORT)
+R_PORT4=$(EPHEMERAL_PORT)
+R_PORT5=$(EPHEMERAL_PORT)
+EOF
+fi
+
+. $Wdir/.env
+
+create_dockerfile ()
+{
+	    docker pull $IMAGE_origin << ANSWERS
+yes
+yes
+yes
+ANSWERS
+
+. $Wdir/ROOT_PASSWORD
+if [ -d "$Wdir/project" ]; then
+	# -----------------------------------------------
+	# 
+	#  create Dockerfile
+	#
+	# ----------------------------------------------
+
+        search='ok'
+
+	if [ $search == 'ok' ]
+	then
+        	echo ""
+		echo ">>>	Load Origin 	"
+		cat << EOF > $Wdir/Dockerfile
+		FROM $IMAGE_origin
+		#
+		USER root
+
+		COPY $bootstrap /usr/bin
+		COPY $hostnames_get /usr/bin
+		COPY $hostnames /usr/bin
+		COPY install-vim-plugin.sh .
+
+		ENV NOTVISIBLE "in users profile"
+		ENV USER1 docker
+		ENV USER_HOME /home/docker
+                ENV SSHDIR \${USER_HOME}/.ssh
+		COPY ssh/ \${SSHDIR}/
+
+		RUN export DEBIAN_FRONTEND=noninteractive  \
+		 && rm -rf /usr/share/doc \
+		 && rm -rf /usr/share/man \
+		 && rm -rf /usr/share/locale \ 
+		 && mkdir -p /var/run/sshd \
+		 && echo 'root:$ROOT_PASSWORD' | chpasswd \
+		 && echo "export VISIBLE=now" >> /etc/profile \
+                 && addgroup -S docker && adduser -S docker -G docker \
+		 && mkdir -p /home/docker/project \
+		 && mkdir -p /etc/opt \
+		&& echo "docker:docker" | chpasswd \
+		&& echo "StrictHostKeyChecking no" > \${SSHDIR}/config \
+		&& cat \${SSHDIR}/*.pub >> \${SSHDIR}/authorized_keys \
+		&& chmod -R 600 \${SSHDIR}/* \
+	        && chown -R \${USER1}:\${USER1} \${SSHDIR} \
+		&& chown -R \${USER1}:\${USER1} \${USER_HOME}
+
+		WORKDIR /home/docker/project
+		COPY .vimrc /home/docker
+		EXPOSE 3787
+		USER docker
+EOF
+	fi
+else
+	echo ""
+	echo "Not in Project Directory"
+	echo "A  project directory should look like this"
+	echo ""
+
+cat <<EOF 
+├── docker-compose.yml
+├── Dockerfile
+├── out.log
+├── project
+│   └── hello_world.sh
+└── ssh
+    ├── id_rsa
+    └── id_rsa.pub
+EOF
+	echo "Change to your Project Directory And Try Again"
+        echo ""
+exit 0
+fi
+}
+
+create_project ()
+{
+
+	    docker pull $IMAGE_origin << ANSWERS
+yes
+yes
+yes
+ANSWERS
+
+if [ "$Wdir" ==  "$HOME" ]; then
+        echo""
+	echo "You are in Your Home directory"
+	echo "Please create a project directory"
+	echo "mkdir myproject; cd myproject; swarmlab-sec create"
+        echo""
+	else
+	echo "# -----------------------------------------------"
+	echo "#####  		Create project            #####"
+	echo "# -----------------------------------------------"
+
+
+	search='ok'
+	if [ $search == 'ok' ]
+	then
+		echo ">>>	Load Origin 	"
+		cat << EOF > $Wdir/Dockerfile
+		FROM $IMAGE_origin
+		#
+		USER root
+		COPY $bootstrap /usr/bin
+		COPY $hostnames_get /usr/bin
+		COPY $hostnames /usr/bin
+		COPY install-vim-plugin.sh .
+
+		ENV NOTVISIBLE "in users profile"
+		ENV USER1 docker
+		ENV USER_HOME /home/docker
+                ENV SSHDIR \${USER_HOME}/.ssh
+		COPY ssh/ \${SSHDIR}/
+
+		RUN export DEBIAN_FRONTEND=noninteractive  \
+		 && rm -rf /usr/share/doc \
+		 && rm -rf /usr/share/man \
+		 && rm -rf /usr/share/locale \ 
+		 && mkdir -p /var/run/sshd \
+		 && echo 'root:$ROOT_PASSWORD' | chpasswd \
+		 && echo "export VISIBLE=now" >> /etc/profile \
+                 && addgroup -S docker && adduser -S docker -G docker \
+		 && mkdir -p /home/docker/project \
+		 && mkdir -p /etc/opt \
+		&& echo "docker:docker" | chpasswd \
+		&& echo "StrictHostKeyChecking no" > \${SSHDIR}/config \
+		&& cat \${SSHDIR}/*.pub >> \${SSHDIR}/authorized_keys \
+		&& chmod -R 600 \${SSHDIR}/* \
+	        && chown -R \${USER1}:\${USER1} \${SSHDIR} \
+		&& chown -R \${USER1}:\${USER1} \${USER_HOME}
+
+		COPY .vimrc /home/docker
+		WORKDIR /home/docker/project
+		EXPOSE 3787
+		USER docker
+EOF
+fi
+
+
+/bin/mkdir -p $Wdir/project
+/bin/cp -rf $DIR/project/bin $Wdir/project
+/bin/cp -rf $DIR/project/courses $Wdir/project
+/bin/cp -f $DIR/project/hello_world.sh $Wdir/project
+/bin/cp -f $DIR/$bootstrap $Wdir/$bootstrap
+/bin/cp -f $DIR/$hostnames $Wdir/$hostnames
+/bin/cp -f $DIR/$hostnames_get $Wdir/$hostnames_get
+/bin/cp -f $DIR/ROOT_PASSWORD $Wdir/ROOT_PASSWORD
+/bin/cp -rf $DIR/.vimrc $Wdir/.vimrc
+/bin/cp -rf $DIR/bin $Wdir
+/bin/cp -rf $DIR/install-vim-plugin.sh $Wdir/install-vim-plugin.sh
+
+
+cat << EOF > $Wdir/docker-compose.yml
+version: "3"
+
+services:
+
+  masterservice:
+    image: $IMAGE_NAME
+    privileged: true
+    environment:
+     - NODENAME=${NODENAME}
+     - NODENETWORK=${NODENETWORK}
+     - DISPLAY=\${DISPLAY}
+    cap_add:
+      - NET_ADMIN
+    user: root
+    entrypoint: ["sec_bootstrap", "role=masterservice", "sec_master_service_name=masterservice", "sec_worker_service_name=workerservice"]
+    ports:
+      - "\${SSH_PORT}:22"
+      - "\${R_PORT1}:3787"  # console
+    networks:
+      - ${HYBRID_NETWORK}
+    volumes:
+      - $Wdir/project:/home/docker/project
+      - $Wdir/bin/ttyd.x86_64:/usr/bin/ttyd
+
+ 
+#  workerservice:
+#    image: $IMAGE_NAME
+#    privileged: true
+#    environment:
+#     - NODENAME=${NODENAME}
+#     - NODENETWORK=${NODENETWORK}
+#     - DISPLAY=\${DISPLAY}
+#    cap_add:
+#      - NET_ADMIN
+#    user: root
+#    entrypoint: ["sec_bootstrap", "role=workerservice", "sec_master_service_name=masterservice", "sec_worker_service_name=workerservice"]
+#    #ports:
+#    #  - "\${SSH_PORT}:22"
+#    networks:
+#      - ${HYBRID_NETWORK}
+#    volumes:
+#      - $Wdir/project:/home/docker/project
+
+networks:
+  ${HYBRID_NETWORK}:
+EOF
+
+#/bin/cp -rf $DIR/ssh $Wdir
+
+cat << EOF > $Wdir/stop.sh
+../install/usr/share/swarmlab.io/sec/swarmlab-sec down
+EOF
+
+cat << EOF > $Wdir/container-stop.sh
+docker stop \$1
+docker container rm \$1
+EOF
+
+cat <<EOF 
+
+Project is Ready
+├── docker-compose.yml
+├── Dockerfile
+├── out.log
+├── project
+│   └── hello_world.sh
+└── ssh
+    ├── id_rsa
+    └── id_rsa.pub
+
+Run: make start
+
+     or run swarmlab-sec help for USAGE
+
+EOF
+
+/bin/chmod -R 777 $Wdir
+
+fi
+}
+
+#######################
+# TASK INDICATORS
+COMMAND_UP=0
+COMMAND_CREATE=0
+COMMAND_DOWN=0
+COMMAND_RELOAD=0
+COMMAND_SCALE=0
+COMMAND_LOGIN=0
+COMMAND_EXEC=0
+COMMAND_LIST=0
+COMMAND_CLEAN=0
+
+# Default values if providing empty
+SIZE=4
+
+#############################################
+usage ()
+{
+    echo ""
+    echo "--------------"
+    echo " SwarmLab.io "
+    echo "--------------"
+    echo ""
+    echo " USAGE: ./swarmlab-sec [COMMAND] [OPTIONS]"
+    echo ""
+    echo " Examples of [COMMAND] can be:"
+    echo "      create: create swarmlab-sec "
+    echo "          mkdir WORKdir; cd WORKdir; swarmlab-sec create"
+    echo ""
+    echo "      up: start swarmlab-sec"
+    echo "          swarmlab-sec up size=10"
+    echo ""
+    echo "      scale: resize the swarmlab-sec"
+    echo "          swarmlab-sec scale size=30"
+    echo ""
+    echo "      reload: rebuild image and distribute to nodes"
+    echo "          swarmlab-sec reload size=15"
+    echo ""
+    echo "      login: login to Docker container of MPI master node for interactive usage"
+    echo "          swarmlab-sec login"
+    echo ""
+    echo "      exec: execute shell command at the MPI master node"
+    echo "          swarmlab-sec exec [SHELL COMMAND]"
+    echo ""
+    echo "      down: shutdown swarmlab-sec"
+    echo "          swarmlab-sec down"
+    echo ""
+    echo "      clean: remove images in the system"
+    echo "          swarmlab-sec clean"
+    echo ""
+    echo "      list: show running containers of swarmlab-sec"
+    echo "          swarmlab-sec list"
+    echo ""
+    echo "      help: show this message"
+    echo "          swarmlab-sec help"
+    echo ""
+    echo "  "
+}
+
+HEADER="
+SwarmLab.io"
+
+clear_all ()
+{
+	$(docker stop $(docker ps -a | grep "${IMAGE_local}_masterservice_" | awk '{print $1}')) || true
+	$(docker stop $(docker ps -a | grep "${IMAGE_local}_workerservice_" | awk '{print $1}')) || true
+
+	#$(docker stop $(docker ps -a | grep "_registry_" | awk '{print $1}')) || true                      # remove for microservices
+	#docker ps -a | grep "_registry_" | awk '{print $1}' | xargs docker container rm || true            # remove for microservices
+	docker ps -a | grep "${IMAGE_local}_workerservice_" | awk '{print $1}' | xargs docker container rm || true
+	docker ps -a | grep "${IMAGE_local}_masterservice_" | awk '{print $1}' | xargs docker container rm || true
+}
+
+down_all ()
+{
+    printf "\\n\\n===> CLEAN UP SWARMLAB"
+
+    printf "\\n%s\\n" "$HEADER"
+    echo "$ docker-compose down"
+    printf "\\n"
+
+    docker-compose down
+}
+
+up_registry ()
+{
+    printf "\\n\\n===> SPIN UP REGISTRY"
+
+    printf "\\n%s\\n" "$HEADER"
+    echo "$ docker-compose up -d registry"
+    printf "\\n"
+
+    #docker stop swarmlab-registry || true && docker rm swarmlab-registry || true     # remove for microservices
+    docker container prune --force
+    docker-compose up --no-recreate -d registry
+}
+
+generate_ssh_keys ()
+{
+    if [ -f ssh/id_rsa ] && [ -f ssh/id_rsa.pub ]; then
+        return 0
+    fi
+
+    printf "\\n\\n===> GENERATE SSH KEYS \\n\\n"
+
+    echo "$ mkdir -p ssh/ "
+    printf "\\n"
+    mkdir -p ssh/
+
+    echo "$ ssh-keygen -f ssh/id_rsa -t rsa -N ''"
+    printf "\\n"
+    ssh-keygen -f ssh/id_rsa -t rsa -N ''
+}
+
+build_and_push_image ()
+{
+    printf "\\n\\n===> BUILD IMAGE"
+    printf "\\n%s\\n" "$HEADER"
+    echo "$ docker build -t \"$IMAGE_NAME\" ."
+    printf "\\n"
+    #docker build -t "$REGISTRY_ADDR:$REGISTRY_PORT/$IMAGE_NAME" .
+    docker build -t "$IMAGE_NAME" .
+
+}
+
+up_master ()
+{
+    printf "\\n\\n===> SPIN UP MASTER NODE"
+    printf "\\n%s\\n" "$HEADER"
+    echo "$ docker-compose up -d masterservice"
+    printf "\\n"
+    #docker-compose rm -f
+    #docker-compose up --build -d masterservice
+    #docker-compose up   --force-recreate -d masterservice
+
+    docker-compose rm -f -s -v
+    docker-compose up --build --remove-orphans  -d masterservice << ANSWERS
+yes
+yes
+yes
+ANSWERS
+
+}
+
+
+up_workers ()
+{
+    printf "\\n\\n===> SPIN UP WORKER NODES"
+    printf "\\n%s\\n" "$HEADER"
+    echo "$ docker-compose up -d worker"
+    printf "\\n"
+    docker-compose rm -f
+    docker-compose up --build -d workerservice
+    #docker-compose up   --force-recreate -d workerservice 
+
+    printf "\\n"
+    printf "\\n%s\\n" "$HEADER"
+
+    NUM_WORKER=$((SIZE - 1))
+    echo "$ docker-compose scale workerservice=$NUM_WORKER"
+    printf "\\n"
+    docker-compose scale workerservice=${NUM_WORKER}
+}
+
+down_master ()
+{
+    printf "\\n\\n===> TORN DOWN MASTER NODE"
+    printf "\\n%s\\n" "$HEADER"
+
+    echo "$ docker-compose stop masterservice && docker-compose rm -f masterservice"
+    printf "\\n"
+    docker-compose stop masterservice && docker-compose rm -f masterservice
+}
+
+down_workers ()
+{
+    printf "\\n\\n===> TORN DOWN WORKER NODES"
+    printf "\\n%s\\n" "$HEADER"
+    echo "$ docker-compose stop worker && docker-compose rm -f worker"
+    printf "\\n"
+    docker-compose stop workerservice && docker-compose rm -f workerservice
+}
+
+list ()
+{
+    printf "\\n\\n===> LIST CONTAINERS"
+    printf "\\n%s\\n" "$HEADER"
+    echo "$ docker-compose ps"
+    printf "\\n"
+    docker-compose ps
+}
+
+
+exec_on_mpi_master_container ()
+{
+    # shellcheck disable=SC2046
+    docker exec -it -u $DOCKERuser $(docker-compose ps | grep 'masterservice'| awk 'NR==1{print $1}') "$@"
+}
+
+prompt_ready ()
+{
+    printf "\\n\\n===> SWARMLAB READY \\n\\n"
+}
+
+show_instruction ()
+{
+    echo '                            ##         .          '
+    echo '                      ## ## ##        ==          '
+    echo '                   ## ## ## ## ##    ===          '
+    echo '               /"""""""""""""""""\___/ ===        '
+    echo '          ~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ /  ===- ~~~ '
+    echo '               \______ o           __/            '
+    echo '                 \    \         __/               '
+    echo '                  \____\_______/                  '
+    echo '                                                  '
+    echo '               Swarmlab.io Hybrid                 '
+    echo ''
+    echo '=============================================================='
+    echo ''
+
+    echo "To run SEC programs in an interative shell:"
+    echo "  1. Login to masterservice node:"
+    echo "     Using Container->connect Menou:"
+    echo "     copy/paste and Run command"
+    echo ""
+    echo "     Or using SSH with keys through exposed port:"
+    echo "     $ ssh -o \"StrictHostKeyChecking no\" -i ssh/id_rsa -p $SSH_PORT docker@localhost"
+    echo '       where [localhost] could be changed to the host IP of masterservice node'
+    echo ""
+    echo "  2. Execute programs inside masterservice node, for example:"
+    echo "     $ sudo su"
+    echo "     # apk update"
+    echo "      *----------------------------------------------------*"
+    echo "      | Default hostfile of connected nodes in the swarmlab |"
+    echo "      | To obtain hostfile manually: $ ./bin/swarmlab-nmap: > hosts   |"
+    echo "      * ---------------------------------------------------*"
+    echo ""
+    echo ""
+}
+
+
+
+#############################################
+
+while [ "$1" != "" ];
+do
+    PARAM=$(echo "$1" | awk -F= '{print $1}')
+    VALUE=$(echo "$1" | awk -F= '{print $2}')
+
+    case $PARAM in
+        help)
+            usage
+            exit
+            ;;
+        -i)
+            show_instruction
+            exit
+            ;;
+
+        login)
+            COMMAND_LOGIN=1
+            ;;
+
+        exec)
+            COMMAND_EXEC=1
+            shift # the rest is the shell command to run in the node
+            SHELL_COMMAND="$*"
+            break # end while loop
+            ;;
+
+        up)
+            COMMAND_UP=1
+            ;;
+
+        create)
+            COMMAND_CREATE=1
+            ;;
+
+        down)
+            COMMAND_DOWN=1
+            ;;
+
+        reload)
+            COMMAND_RELOAD=1
+            ;;
+
+        scale)
+            COMMAND_SCALE=1
+            ;;
+
+        list)
+            COMMAND_LIST=1
+            ;;
+
+        clean)
+            COMMAND_CLEAN=1
+            ;;
+
+        size)
+            [ "$VALUE" ] && SIZE=$VALUE
+            ;;
+
+        *)
+            echo "ERROR: unknown parameter \"$PARAM\""
+            usage
+            exit 1
+            ;;
+    esac
+    shift
+done
+
+
+if [ $COMMAND_UP -eq 1 ]; then
+    create_dockerfile
+    down_all
+    clear_all
+    #up_registry 	 	# remove for microservices
+    generate_ssh_keys
+    build_and_push_image	# remove for microservices
+    up_master
+    #up_workers
+
+    prompt_ready
+    show_instruction
+
+elif [ $COMMAND_CREATE -eq 1 ]; then
+    create_project
+
+elif [ $COMMAND_DOWN -eq 1 ]; then
+    down_all
+    clear_all
+
+elif [ $COMMAND_CLEAN -eq 1 ]; then
+    clear_all
+
+
+elif [ $COMMAND_SCALE -eq 1 ]; then
+    create_dockerfile
+    down_master
+    down_workers
+    up_master
+    #up_workers
+
+    prompt_ready
+    show_instruction
+
+elif [ $COMMAND_RELOAD -eq 1 ]; then
+    create_dockerfile
+    down_master
+    down_workers
+    build_and_push_image
+    up_master
+    #up_workers
+
+    prompt_ready
+    show_instruction
+
+elif [ $COMMAND_LOGIN -eq 1 ]; then
+    exec_on_mpi_master_container /bin/bash
+
+elif [ $COMMAND_EXEC -eq 1 ]; then
+    create_dockerfile
+    exec_on_mpi_master_container ash -c "${SHELL_COMMAND}"
+
+elif [ $COMMAND_LIST -eq 1 ]; then
+    list
+else
+    usage
+fi
+