TP sysres IMA5sc 2018/2019 G8 : Différence entre versions

De Wiki d'activités IMA
(TP conteneurs)
(TP conteneurs)
Ligne 2 : Ligne 2 :
 
===Création des espaces disques===
 
===Création des espaces disques===
  
dd if=/dev/zero of=diskTPconteneur bs=1024k count=10240
+
dd if=/dev/zero of=diskTPconteneur bs=1024k count=10240
mkfs diskTPconteneur
+
mkfs diskTPconteneur
  
mkdir /tmp/fs1
+
mkdir /tmp/fs1
mkdir /tmp/fs2
+
mkdir /tmp/fs2
mkdir /tmp/fs3
+
mkdir /tmp/fs3
  
mount -o loop diskTPconteneur /tmp/fs1
+
mount -o loop diskTPconteneur /tmp/fs1
debootstrap --include apache2,nano  stable /tmp/fs1
+
debootstrap --include apache2,nano  stable /tmp/fs1
echo "proc /proc proc defaults 0 0" >> /tmp/fs1/etc/fstab
+
echo "proc /proc proc defaults 0 0" >> /tmp/fs1/etc/fstab
  
umount /tmp/fs1
+
umount /tmp/fs1
cp diskTPconteneur ./diskTPconteneur2
+
cp diskTPconteneur ./diskTPconteneur2
cp diskTPconteneur ./diskTPconteneur3
+
cp diskTPconteneur ./diskTPconteneur3
mv diskTPconteneur ./diskTPconteneur1
+
mv diskTPconteneur ./diskTPconteneur1
  
mount -o loop diskTPconteneur1 /tmp/fs1
+
mount -o loop diskTPconteneur1 /tmp/fs1
mount -o loop diskTPconteneur2 /tmp/fs2
+
mount -o loop diskTPconteneur2 /tmp/fs2
mount -o loop diskTPconteneur3 /tmp/fs3
+
mount -o loop diskTPconteneur3 /tmp/fs3
df -h
+
df -h
  
 
Dans 3 terminaux différents:
 
Dans 3 terminaux différents:
unshare -p -f -m -n -u chroot /tmp/fs1/ /bin/sh -c "mount /proc ; /bin/bash"
+
 
unshare -p -f -m -n -u chroot /tmp/fs2/ /bin/sh -c "mount /proc ; /bin/bash"
+
unshare -p -f -m -n -u chroot /tmp/fs1/ /bin/sh -c "mount /proc ; /bin/bash"
unshare -p -f -m -n -u chroot /tmp/fs3/ /bin/sh -c "mount /proc ; /bin/bash"
+
unshare -p -f -m -n -u chroot /tmp/fs2/ /bin/sh -c "mount /proc ; /bin/bash"
 +
unshare -p -f -m -n -u chroot /tmp/fs3/ /bin/sh -c "mount /proc ; /bin/bash"
  
 
===Création du commutateur===
 
===Création du commutateur===
  
ip link add commTPconteneur type bridge
+
ip link add commTPconteneur type bridge
  
ip link add vif1 type veth peer name eth0@vif1
+
ip link add vif1 type veth peer name eth0@vif1
ip link add vif2 type veth peer name eth0@vif2
+
ip link add vif2 type veth peer name eth0@vif2
ip link add vif3 type veth peer name eth0@vif3
+
ip link add vif3 type veth peer name eth0@vif3
ip link add vif4 type veth peer name eth1@vif4
+
ip link add vif4 type veth peer name eth1@vif4
  
ps aux | grep unshare
+
ps aux | grep unshare
ip link set eth0@vif1 netns /proc/13812/ns/net name eth0
+
ip link set eth0@vif1 netns /proc/13812/ns/net name eth0
ip link set eth0@vif2 netns /proc/13860/ns/net name eth0
+
ip link set eth0@vif2 netns /proc/13860/ns/net name eth0
ip link set eth0@vif3 netns /proc/13883/ns/net name eth0
+
ip link set eth0@vif3 netns /proc/13883/ns/net name eth0
ip link set eth1@vif4 netns /proc/13812/ns/net name eth1
+
ip link set eth1@vif4 netns /proc/13812/ns/net name eth1
  
 
ip link set vif1 master commTPconteneur
 
ip link set vif1 master commTPconteneur

Version du 19 novembre 2018 à 07:57

TP conteneurs

Création des espaces disques

dd if=/dev/zero of=diskTPconteneur bs=1024k count=10240
mkfs diskTPconteneur
mkdir /tmp/fs1
mkdir /tmp/fs2
mkdir /tmp/fs3
mount -o loop diskTPconteneur /tmp/fs1
debootstrap --include apache2,nano  stable /tmp/fs1
echo "proc /proc proc defaults 0 0" >> /tmp/fs1/etc/fstab
umount /tmp/fs1
cp diskTPconteneur ./diskTPconteneur2
cp diskTPconteneur ./diskTPconteneur3
mv diskTPconteneur ./diskTPconteneur1
mount -o loop diskTPconteneur1 /tmp/fs1
mount -o loop diskTPconteneur2 /tmp/fs2
mount -o loop diskTPconteneur3 /tmp/fs3
df -h

Dans 3 terminaux différents:

unshare -p -f -m -n -u chroot /tmp/fs1/ /bin/sh -c "mount /proc ; /bin/bash"
unshare -p -f -m -n -u chroot /tmp/fs2/ /bin/sh -c "mount /proc ; /bin/bash"
unshare -p -f -m -n -u chroot /tmp/fs3/ /bin/sh -c "mount /proc ; /bin/bash"

Création du commutateur

ip link add commTPconteneur type bridge
ip link add vif1 type veth peer name eth0@vif1
ip link add vif2 type veth peer name eth0@vif2
ip link add vif3 type veth peer name eth0@vif3
ip link add vif4 type veth peer name eth1@vif4
ps aux | grep unshare
ip link set eth0@vif1 netns /proc/13812/ns/net name eth0
ip link set eth0@vif2 netns /proc/13860/ns/net name eth0
ip link set eth0@vif3 netns /proc/13883/ns/net name eth0
ip link set eth1@vif4 netns /proc/13812/ns/net name eth1

ip link set vif1 master commTPconteneur ip link set vif2 master commTPconteneur ip link set vif3 master commTPconteneur ip link set vif4 master bridge brctl show

nsenter -t 13812 -n ip address add dev eth0 192.168.0.101/24 nsenter -t 13860 -n ip address add dev eth0 192.168.0.102/24 nsenter -t 13883 -n ip address add dev eth0 192.168.0.103/24 nsenter -t 13812 -n ip address add dev eth1 192.168.0.104/24

ip link set vif1 up ip link set vif2 up ip link set vif3 up ip link set vif4 up ip link set commTPconteneur up

Dans chaque terminal faisant tourner un conteneur: ip link set eth0 up