NAME

       container-build-debconf - Build an advanced Debian based container with debconf

SYNOPSIS

       container build -s debconf ['OPTIONS']
       cnt b -s debconf ['OPTIONS']

       container build -s debian ['OPTIONS']
       cnt b -s debian ['OPTIONS']

       container build -s progress-linux ['OPTIONS']
       cnt b -s progress-linux ['OPTIONS']

DESCRIPTION

       The debconf container build script uses debconf(1) to automatically build a Debian based container.

   Scope
       Note  that this container build script can do a few things more than just automatically debootstrap based
       on a preseed file. It also allows you to set a root password,  configure  the  network,  install  certain
       packages and execute hooks.

       But:  this  is  not a replacement for a configuration management system (like ansible, puppet, etc.). The
       intenion of this script is to build the initial container to that extend that a configuration  management
       system can take over.

       As an analogy, think of debian-installer: d-i sets up your system to make it ready to boot and connect to
       the network. Everything after that is out of scope.  Same goes for this script.

   Functions
       This script performs the following configuration on top of a Debian based system:

          • network

          • root password

          • apt repositories

          • ...

   Modes
       This container build script can be used under two different names: debian and progress-linux.

       Alternative, calling it under the debconf name is equal to the debian mode.

   Preseeding
       Hierarchy of Preseed Files:

          • The debconf script can be fully preseeded. Such preseed files can include one or more preseed  files
            themselfs (currently, only one layer of includes is supported, no nested or recursive includes).

          • The  general  rule  of  'the later preseed file overwrites the earlier' applies.  The debconf script
            reads the main preseed file (specified either on command line or by debconf selection/input  dialog)
            after any included preseed files in there.

          • That  means  that  debconf values after the include statement in the main preseed file can overwrite
            any values specified in the included preseed files.

OPTIONS

       The following script options are available:

       -n, --name='NAME':
              Specify container name.

       -p, --preseed-file='FILE':
              Specify the preseed file.

EXAMPLES

       Build a Debian based container:
          sudo container build -s debian -n debian.example.net

       Build a Progress Linux container:
          sudo container build -s progress-linux -n progress.example.net

FILES

       The following files are used:

       /etc/compute-tools/config:
              Container configuration files.

       /usr/share/compute-tools/build-scripts:
              Container build scripts.

       /usr/share/doc/compute-tools:
              Container documentation.

       /var/lib/machines:
              Container directory.

       /var/cache/container:
              Container cache directory.

       /tmp/compute-tools:
              Container temporary directory.

SEE ALSO

       compute-tools(7),
       container(1).

HOMEPAGE

       More information about compute-tools and the Open Infrastructure project can be found on the homepage  (‐
       https://open-infrastructure.net).

CONTACT

       Bug  reports,  feature  requests,  help,  patches,  support  and  everything else are welcome on the Open
       Infrastructure Software Mailing List <software@lists.open-infrastructure.net>.

       Debian specific bugs can also be reported in the Debian Bug Tracking System (https://bugs.debian.org).

AUTHORS

       compute-tools were written by Daniel Baumann <daniel.baumann@open-infrastructure.net> and others.