From 67d51d09a7be830bf5e8df4b6b6d68ed77e95e5e Mon Sep 17 00:00:00 2001
From: test2 <test2@test2.gr>
Date: Tue, 10 Mar 2020 23:26:59 +0200
Subject: [PATCH] make all

---
 index.adoc | 59 ++++++++++++++++++++++++++++++------------------------
 1 file changed, 33 insertions(+), 26 deletions(-)

diff --git a/index.adoc b/index.adoc
index 33ba22d..8cd0421 100644
--- a/index.adoc
+++ b/index.adoc
@@ -64,48 +64,55 @@ structure.
 [source,bash]
 ----
 swarmlab/
-├── run
-├── runafter
-└── runbefore
+├── Makefile
+├── ..
+└── ..
 ----
 
-===== runbefore
+You need a file called a **Makefile** to tell make what to do. 
+The makefile tells make how to compile and link a program,  it can also tell make how to run miscellaneous commands when explicitly asked (for example, to remove certain files as a clean-up operation)
 
-Lab_Instance dependencies. **"runbefore"** allows you to automatically pull-in other dependencies when using a Lab_Instance service. 
+**Makefile** is executed with the make command, e.g. 
 
-This file should contain a list of tasks and parameters to insert before the specified repos are executed on Lab_Instance.
-
-===== run
-
-Contains the main list of tasks to be executed by the Lab_Instance service.
-
-===== runafter
+.make all
+[source,bash]
+----
+if [ -d swarmlab ]; then
+  cd swarmlab
+  make all
+fi
+----
 
 
-**"runafter"** is the machanism that allows you to to permanently save your data. 
+===== Makefile
 
-Lab_Instances are mortal, and it’s pretty much routine them to be stoped and deleted. 
+Lab_Instance dependencies. **"Makefile"** allows you to automatically pull-in other dependencies when using a Lab_Instance service. 
 
-If you have something like a data/log file that needs to be saved then at this point make sure to back it up! 
+This file should contain a list of tasks and parameters to insert before the specified repos are executed on Lab_Instance and a list of tasks to be executed by the Lab_Instance service.
 
-[NOTE]
-====
-You can use any Script Programming Language you want to automate the execution of Lab_Instance service 
-
-The shebang **MUST** be in the first line
-
-.e.g.
+.Directory_Structure
 [source,bash]
 ----
-#!/usr/bin/perl
+all: hello_world generate clean
+
+hello_world:
+        @echo "Hello World"
 
-use strict;
-use warnings;
+generate:
+        @echo "Creating empty text files..."
+        touch file-{1..10}.txt
 
-print "hello world!\n";
+clean:
+        @echo "Cleaning up..."
+        rm *.txt
 ----
 
+more info https://www.gnu.org/software/make/manual/html_node/index.html#toc-Overview-of-make[Gnu make]
 
+
+[NOTE]
+====
+A simple example can be found https://git.swarmlab.io:3000/swarmlab/examples-mpi[here]
 ====