Add exercices

courses/1/README.md

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+Slides: http://pointful.github.io/docker-intro/#/

courses/3/resources/10-containers.sh

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+#!/bin/bash
+
+# cat /proc/meminfo
+
+serverCount=10
+startDate=$(date)
+for n in $(seq 1 1 $serverCount)
+do
+	hostPort=$(($n + 10000))
+	provider="World #$n"
+	echo "Starting $n. Host Port: $hostPort, Message: $provider"
+	docker run -d -p $hostPort:5000 -e "PROVIDER=$provider" training/webapp
+done
+echo
+echo Started $n containers. Start time: $startDate, end time: $(date)
+
+# Stop all: docker stop $(docker ps -q)
+# Remove all stopped: docker rm $(docker ps -aq)
+
+# Test run:
+#   free –m: 1494
+#   1 Container: 1480
+#   100 Containers: 124

courses/3/resources/ex2/webserver/Dockerfile

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+# A Dockerfile is a simple text-file that contains a list of commands
+# that the Docker client calls while creating an image.
+# It's a simple way to automate the image creation process.
+# The best part is that the commands you write in a Dockerfile are almost
+# identical to their equivalent Linux commands. This means you don't really
+# have to learn new syntax to create your own dockerfiles.
+
+# Use ubuntu as base image, it will be downloaded automatically
+FROM ubuntu:latest
+MAINTAINER Jacques Celere "jacques.celere@gmail.com"
+
+# Update and install python-3
+RUN xxxx 
+
+# Create /home/www
+RUN xxxx
+
+# Set /home/www as WORKDIR
+WORKDIR xxxx
+
+# Copy index.html inside container, in /home/www
+# NOTE: code could also be retrieved from git repository
+ADD xxxx
+
+# Copy hello.py inside container, in /home/src
+# NOTE: putting this command to the last line 
+# would allow to rebuild only this layer if if hello.py is changed
+ADD xxxx
+
+# Launch /home/src/hello.py at container startup 
+# It will serve files located where it has been launch
+CMD xxxx 
+

courses/3/resources/ex2/webserver/hello.py

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+import http.server
+import socketserver
+
+PORT = 8000
+
+Handler = http.server.SimpleHTTPRequestHandler
+
+httpd = socketserver.TCPServer(("", PORT), Handler)
+
+print("serving at port", PORT)
+httpd.serve_forever()

courses/3/resources/ex2/webserver/index.html

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+Hello World

courses/3/resources/ex2/www/index.html

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+Hello, I'm on host machine!