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