yunohost_demo/demo_lxc_build.sh

#!/bin/bash

# Créer les conteneurs Yunohost et les configure

# Récupère le dossier du script
if [ "${0:0:1}" == "/" ]; then script_dir="$(dirname "$0")"; else script_dir="$PWD/$(dirname "$0" | cut -d '.' -f2)"; fi

LOG_BUILD_LXC="/var/log/lxc_demo/Build_lxc.log"
PLAGE_IP="10.1.5"
IP_LXC="10.1.5.3"
ARG_SSH="-t"
DOMAIN=demotest1.tld
YUNO_PWD=admin
LXC_NAME1=yunohost_demo1
LXC_NAME2=yunohost_demo2
TIME_TO_SWITCH=30	# En minutes

USER_DEMO=demo
PASSWORD_DEMO=demo

echo "> Création d'une machine debian jessie minimaliste" | tee -a "$LOG_BUILD_LXC"
sudo lxc-create -n $LXC_NAME1 -t debian -- -r jessie >> "$LOG_BUILD_LXC" 2>&1

echo "> Active le bridge réseau" | tee -a "$LOG_BUILD_LXC"
sudo ifup lxc_demo --interfaces=/etc/network/interfaces.d/lxc_demo >> "$LOG_BUILD_LXC" 2>&1

echo "> Configuration réseau du conteneur" | tee -a "$LOG_BUILD_LXC"
sudo sed -i "s/^lxc.network.type = empty$/lxc.network.type = veth\nlxc.network.flags = up\nlxc.network.link = lxc_demo\nlxc.network.name = eth0\nlxc.network.veth.pair = $LXC_NAME1\nlxc.network.hwaddr = 00:FF:AA:00:00:03/" /var/lib/lxc/$LXC_NAME1/config >> "$LOG_BUILD_LXC" 2>&1

echo "> Configuration réseau de la machine virtualisée" | tee -a "$LOG_BUILD_LXC"
sudo sed -i "s@iface eth0 inet dhcp@iface eth0 inet static\n\taddress $IP_LXC/24\n\tgateway $PLAGE_IP.1@" /var/lib/lxc/$LXC_NAME1/rootfs/etc/network/interfaces >> "$LOG_BUILD_LXC" 2>&1

echo "> Configure le parefeu" | tee -a "$LOG_BUILD_LXC"
sudo iptables -A FORWARD -i lxc_demo -o eth0 -j ACCEPT >> "$LOG_BUILD_LXC" 2>&1
sudo iptables -A FORWARD -i eth0 -o lxc_demo -j ACCEPT >> "$LOG_BUILD_LXC" 2>&1
sudo iptables -t nat -A POSTROUTING -s $PLAGE_IP.0/24 -j MASQUERADE >> "$LOG_BUILD_LXC" 2>&1

echo "> Démarrage de la machine" | tee -a "$LOG_BUILD_LXC"
sudo lxc-start -n $LXC_NAME1 -d >> "$LOG_BUILD_LXC" 2>&1
sleep 3
sudo lxc-ls -f >> "$LOG_BUILD_LXC" 2>&1

echo "> Update et install tasksel sudo git" | tee -a "$LOG_BUILD_LXC"
sudo lxc-attach -n $LXC_NAME1 -- apt-get update
sudo lxc-attach -n $LXC_NAME1 -- apt-get install -y tasksel sudo git
echo "> Installation des paquets standard et ssh-server" | tee -a "$LOG_BUILD_LXC"
tasksell_exit=1
while [ "$tasksell_exit" -ne 0 ]
do
	sudo lxc-attach -n $LXC_NAME1 -- tasksel install standard ssh-server
	tasksell_exit=$?
done
echo "> Renseigne /etc/hosts sur l'invité" | tee -a "$LOG_BUILD_LXC"
echo "127.0.0.1 $LXC_NAME1" | sudo tee -a /var/lib/lxc/$LXC_NAME1/rootfs/etc/hosts >> "$LOG_BUILD_LXC" 2>&1

echo "> Ajoute l'user ssh_demo (avec un mot de passe à revoir...)" | tee -a "$LOG_BUILD_LXC"
sudo lxc-attach -n $LXC_NAME1 -- useradd -m -p ssh_demo ssh_demo >> "$LOG_BUILD_LXC" 2>&1

echo "> Autorise ssh_demo à utiliser sudo sans mot de passe" | tee -a "$LOG_BUILD_LXC"
echo "ssh_demo    ALL=(ALL:ALL) NOPASSWD: ALL" | sudo tee -a /var/lib/lxc/$LXC_NAME1/rootfs/etc/sudoers >> "$LOG_BUILD_LXC" 2>&1

echo "> Mise en place de la connexion ssh vers l'invité." | tee -a "$LOG_BUILD_LXC"
sudo mkdir /var/lib/lxc/$LXC_NAME1/rootfs/home/ssh_demo/.ssh >> "$LOG_BUILD_LXC" 2>&1
sudo cp $HOME/.ssh/$LXC_NAME1.pub /var/lib/lxc/$LXC_NAME1/rootfs/home/ssh_demo/.ssh/authorized_keys >> "$LOG_BUILD_LXC" 2>&1
sudo lxc-attach -n $LXC_NAME1 -- chown ssh_demo -R /home/ssh_demo/.ssh >> "$LOG_BUILD_LXC" 2>&1

ssh $ARG_SSH $LXC_NAME1 "exit 0"	# Initie une premier connexion SSH pour valider la clé.
if [ "$?" -ne 0 ]; then	# Si l'utilisateur tarde trop, la connexion sera refusée... ???
	ssh $ARG_SSH $LXC_NAME1 "exit 0"	# Initie une premier connexion SSH pour valider la clé.
fi

ssh $ARG_SSH $LXC_NAME1 "git clone https://github.com/YunoHost/install_script /tmp/install_script" >> "$LOG_BUILD_LXC" 2>&1
echo "> Installation de Yunohost..." | tee -a "$LOG_BUILD_LXC"
ssh $ARG_SSH $LXC_NAME1 "cd /tmp/install_script; sudo ./install_yunohost -a" | tee -a "$LOG_BUILD_LXC" 2>&1
echo "> Post install Yunohost" | tee -a "$LOG_BUILD_LXC"
ssh $ARG_SSH $LXC_NAME1 "sudo yunohost tools postinstall --domain $DOMAIN --password $YUNO_PWD" | tee -a "$LOG_BUILD_LXC" 2>&1

USER_DEMO_CLEAN=${USER_DEMO//"_"/""}
echo "> Ajout de l'utilisateur de demo" | tee -a "$LOG_BUILD_LXC"
ssh $ARG_SSH $LXC_NAME1 "sudo yunohost user create --firstname \"$USER_DEMO_CLEAN\" --mail \"$USER_DEMO_CLEAN@$DOMAIN\" --lastname \"$USER_DEMO_CLEAN\" --password \"$PASSWORD_DEMO\" \"$USER_DEMO\" --admin-password=\"$YUNO_PWD\""

echo -e "\n> Vérification de l'état de Yunohost" | tee -a "$LOG_BUILD_LXC"
ssh $ARG_SSH $LXC_NAME1 "sudo yunohost -v" | tee -a "$LOG_BUILD_LXC" 2>&1


echo "> Arrêt de la machine virtualisée" | tee -a "$LOG_BUILD_LXC"
sudo lxc-stop -n $LXC_NAME1 >> "$LOG_BUILD_LXC" 2>&1

echo "> Suppression des règles de parefeu" | tee -a "$LOG_BUILD_LXC"
sudo iptables -D FORWARD -i lxc_demo -o eth0 -j ACCEPT >> "$LOG_BUILD_LXC" 2>&1
sudo iptables -D FORWARD -i eth0 -o lxc_demo -j ACCEPT >> "$LOG_BUILD_LXC" 2>&1
sudo iptables -t nat -D POSTROUTING -s $PLAGE_IP.0/24 -j MASQUERADE >> "$LOG_BUILD_LXC" 2>&1
sudo ifdown --force lxc_demo >> "$LOG_BUILD_LXC" 2>&1

echo "> Création d'un snapshot" | tee -a "$LOG_BUILD_LXC"
sudo lxc-snapshot -n $LXC_NAME1 >> "$LOG_BUILD_LXC" 2>&1
# Il sera nommé snap0 et stocké dans /var/lib/lxcsnaps/$LXC_NAME1/snap0/

echo "> Clone la machine" | tee -a "$LOG_BUILD_LXC"
sudo sudo lxc-clone -o $LXC_NAME1 -n $LXC_NAME2 >> "$LOG_BUILD_LXC" 2>&1

# Mise en place du cron de switch
echo | sudo tee /etc/cron.d/demo_switch <<EOF
# Switch des conteneurs toutes les $TIME_TO_SWITCH minutes
*/$TIME_TO_SWITCH * * * * root $script_dir/demo_switch.sh > /dev/null 2>&1
EOF
# Et du cron d'upgrade
echo | sudo tee /etc/cron.d/demo_upgrade <<EOF
# Vérifie les mises à jour des conteneurs de demo, lorsqu'ils ne sont pas utilisés, à partir de 3h chaque nuit.
0 3 * * * root $script_dir/demo_switch.sh > /dev/null 2>&1
EOF

# Démarrage de la démo
"$script_dir/demo_start.sh"