mk-deb-chroot

   1 #!/bin/bash
   2 if [ "$EUID" -ne 0 ]
   3   then echo "Please run as root"
   4   exit
   5 fi
   6 if [ -z "$1"  ]
   7   then echo "need arg $1 for chroot to make"
   8   exit
   9 fi
  10 chrootdir="$1"
  11 echo "creating chroot '$chrootdir'"
  12
  13 # Create coriolis chroot dir in /opt
  14 mkdir -p /opt/chroot/$chrootdir
  15 # Install debootstrap and schroot via apt
  16 apt install -y debootstrap schroot
  17 # Install debian/buster chroot using debootstrap
  18 /usr/sbin/debootstrap buster /opt/chroot/$chrootdir \
  19                       http://ftp.uk.debian.org/debian
  20 echo "$chrootdir" > /opt/chroot/$chrootdir/etc/debian_chroot
  21
  22 # Install apt dependencies in the chroot
  23 chroot /opt/chroot/$chrootdir /bin/bash << EOF
  24 echo Installing necessary apt dependencies in the chroot
  25 apt-get update -y
  26 apt-get upgrade -y
  27 apt-get install -y automake binutils-dev build-essential \
  28 ccache cmake gcc git \
  29 libtool \
  30 sysvinit-core \
  31 sysvinit-utils \
  32 sudo \
  33 python2.7 \
  34 python3 python3-pip \
  35 python3-setuptools python3-dev
  36
  37 # yeah systemd in a chroot? not very funny joke.
  38 apt-get remove -y systemd
  39
  40 # add sudo no password
  41 echo '$SUDO_USER ALL=NOPASSWD: ALL' >> /etc/sudoers.d/$chrootdir
  42
  43 # Create user with same UID in the chroot
  44 useradd -m -p `python3 -c 'import crypt; print (crypt.crypt("1234","Fx"))'` \
  45                 -s /bin/bash $SUDO_USER -k /etc/skel
  46 echo -e "
  47 Added user ${SUDO_USER} with \e[1;91mpassword: 1234\e[0m"
  48
  49 # add deb-src to sources
  50 echo deb-src http://ftp.debian.org/debian buster main > \
  51         /etc/apt/sources.list.d/bustersrc.list
  52
  53 echo -e "
  54 \e[1;91mPlease use command 'passwd ${SUDO_USER}' to change this immediately after this script is run for security purposes.\e[0m
  55 "
  56
  57 # Add convenience variable to chroot user .bash_profile
  58 echo -e 'export PATH=/usr/lib/ccache:"\044PATH"\nexport DISPLAY=:0.0\n' > /home/$SUDO_USER/.bash_profile
  59 chown $SUDO_USER /home/$SUDO_USER/.bash_profile
  60 chgrp $SUDO_USER /home/$SUDO_USER/.bash_profile
  61
  62 echo -e "Added 'export PATH=/usr/lib/ccache:\"\044PATH\"\nexport DISPLAY=:0.0' to /home/$SUDO_USER/.bash_profile to speed up rebuilds"
  63 EOF
  64
  65 # Add chroot config to schroot.conf
  66 cat <<EOF >>/etc/schroot/schroot.conf
  67 [$chrootdir]
  68 description=Debian Buster for $chrootdir
  69 directory=/opt/chroot/$chrootdir
  70 groups=sbuild-security,$SUDO_USER,users
  71 type=directory
  72 EOF
  73
  74 echo "Adding the following $chrootdir section to /etc/schroot/schroot.conf:
  75
  76 [$chrootdir]
  77 description=Debian Buster for $chrootdir
  78 directory=/opt/chroot/$chrootdir
  79 groups=sbuild-security,$SUDO_USER,users
  80 type=directory
  81
  82 This enables you to chroot into $chrootdir as an unprivileged user by running
  83 'schroot -c $chrootdir /bin/bash'
  84 "
  85