chroot reorganization thanks to a suggestion by Mathieu Godlewski

Author: MichaelBitard

.gitignore

@@ -1 +1,3 @@
 chroots_dir/
+chroot/
+*.swp

custom_chroot/launch_chroot.sh renamed to launch_chroot.sh

@@ -12,6 +12,13 @@ then
   exit 1
 fi
 
+if [ ! -d "$root_dir" ]
+then
+    echo "no chroot present, creating one"
+    sudo ./util_create_chroot.sh
+    sudo mv $bindir/chroots_dir/*/chroot/ $root_dir
+fi
+
 echo "Launching chroot"
 
 mountFileSystems() {
@@ -40,7 +47,7 @@ if [ ! -f $root_dir/root/.ssh/authorized_keys ]; then
 fi
 
 launchAnsible() {
-	ansiblePath=$bindir/chrootAnsible/ansible/
+	ansiblePath=$bindir/ansible/
 	source $ansiblePath/ansible_sources/hacking/env-setup
 	ansible-playbook $ansiblePath/chroot.yml -i $ansiblePath/ansible_hosts
 }

readme.md

@@ -1,24 +1,46 @@
 ## Setup a chroot with a SSH server running on port 220 and ready to be 'ansiblized'
 
-1. Create the chroot
-  1. Launch 'sudo ./create_chroot.sh' (make sure you have debootstrap installed before)
-  2. You will be prompted for the ubuntu distribution you want to create the chroot from
-  3. Wait for it
-  4. Congratulations, you have a chroot created in the chroot directory
-2. Use the chroot
-  1. Now there is a directory named chroots_dir/${distrib}
-    1. The global structure is: 
-       * chroot: contains the chroot
-       * chrootAnsible: contains all file to customize the chroot with ansible
-         * ansible contains the chroot.yml which is the parent yml file
-       * launch_chroot.sh
-       * stop_chroot.sh
-
-
-If you execute ./launch_chroot.sh it will 
+### Prerequisites ###
+In order for this to work, you must have: 
+* debootstrap
+* python-jinja2
+* python-yaml
+
+For ubuntu, you can copy/paste
+```bash
+ sudo apt-get install debootstrap python-jinja2 python-yaml
+```
+
+### Usage ###
+Execute ./launch_chroot.sh
+
+If you dont have a chroot initialized, you will be asked to chose which distribution you want to create the chroot from.
+At the end of the setup, ansible will be launched and your chroot configured
+
+#### What the script does #### 
+
 * mount /proc /dev /sys and /dev/pts
 * launch the chroot and an ssh server
 * put your ssh public key to the root folder of the chroot
 * launch ansible
+* connect via ssh to the chroot
+
+#### Faq ####
+If you have something like that: 
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
+ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
+ IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
+ Someone could be eavesdropping on you right now (man-in-the-middle attack)!
+ It is also possible that a host key has just been changed.
+ The fingerprint for the ECDSA key sent by the remote host is
+ 58:45:5b:9f:c5:33:8d:15:45:2b:81:c9:b3:28:1c:39.
+ Please contact your system administrator.
+ Add correct host key in /home/yourhome/.ssh/known_hosts to get rid of this message.
+ Offending ECDSA key in /home/yourhome/.ssh/known_hosts:13
+   remove with: ssh-keygen -f "/home/yourhome/.ssh/known_hosts" -R [127.0.0.1]:220
+ ECDSA host key for [127.0.0.1]:220 has changed and you have requested strict checking.
+ Host key verification failed.
 
-Once this is over, you have your prompt back and you can connect to the chroot by using 'ssh root@localhost -p 220'.
+it means that you probably had another system running on port 220.
+To get rid of this message, simply run the ssh-keygen command promped by the message. In my case, this will be 'ssh-keygen -f "/home/yourhome/.ssh/known_hosts" -R [127.0.0.1]:220', stop your chroot and launch it again.

custom_chroot/stop_chroot.sh renamed to stop_chroot.sh

@@ -4,6 +4,8 @@ echo "------------------- USAGES ------------------"
 echo "-- create a minimun chroot based on ubuntu --"
 echo "------------------- USAGES ------------------"
 
+cd $(dirname $0)
+
 readonly base_chroots_dir="chroots_dir"
 
 get_path_to_chroot() {
@@ -61,8 +63,6 @@ customize_chroot() {
         fi
         sudo sed -i 's/Port 22$/Port 220/' ${chroot_dir}/etc/ssh/sshd_config
         sudo rm -rf ${chroot_dir}/var/cache/apt/archives/*.deb
-        sudo cp custom_chroot/stop_chroot.sh ${chroot_dir}/../
-        sudo cp custom_chroot/launch_chroot.sh ${chroot_dir}/../
         sudo cp custom_chroot/init_ssh.sh ${chroot_dir}/
         sudo mkdir ${chroot_dir}/root/.ssh/
 
@@ -74,7 +74,6 @@ customize_chroot() {
         sudo echo "TZ='Europe/Paris'; export TZ" >> bash.bashrc
         sudo mv bash.bashrc ${chroot_dir}/etc/bash.bashrc
         sudo chmod 644 ${chroot_dir}/etc/bash.bashrc
-	sudo git clone --recursive https://github.com/MichaelBitard/chrootAnsible.git ${base_chroots_dir}/${distrib}/chrootAnsible
 }
 finishChroot() {
         local distrib=$1