<NME> README.rst
<BEF> ===========
debootstrap
===========

Base element for creating minimal debian-based images.

This element is incomplete by itself, you'll want to use elements like
debian-minimal or ubuntu-minimal to get an actual base image.

There are two ways to configure apt-sources:

1. Using the standard way of defining the default, backports, updates
   and security repositories is the default. In this case you can
   overwrite the two environment variables to adapt the behavior:

   * ``DIB_DISTRIBUTION_MIRROR``: the mirror to use (default:
     `<http://deb.debian.org/debian>`__)
   * ``DIB_DEBIAN_COMPONENTS``: (default: ``main``) a comma
     separated list of components. For Debian this can be
     e.g. ``main,contrib,non-free``.

   By default only the ``main`` component is used. If
   ``DIB_DEBIAN_COMPONENTS`` (comma separated) from the
   ``debootstrap`` element has been set, that list of components will
   be used instead.

   Backports, updates and security are included unless ``DIB_RELEASE``
   is ``unstable``.

2. Complete configuration given in the variable ``DIB_APT_SOURCES_CONF``.

   Each line contains exactly one entry for the sources.list.d
   directory.  The first word must be the logical name (which is used
   as file name with ``.list`` automatically appended), followed by a
   colon ``:``, followed by the complete repository specification.

   .. code-block:: bash

      DIB_APT_SOURCES_CONF=\
        "default:deb http://10.0.0.10/ stretch main contrib
         mysecurity:deb http://10.0.0.10/ stretch-security main contrib"

If necessary, a custom apt keyring and debootstrap script can be
supplied to the ``debootstrap`` command via ``DIB_APT_KEYRING`` and
``DIB_DEBIAN_DEBOOTSTRAP_SCRIPT`` respectively. Both options require the
use of absolute rather than relative paths.

Use of this element will also require the tool 'debootstrap' to be
available on your system. It should be available on Ubuntu, Debian,
and Fedora. It is also recommended that the 'debian-keyring' package
be installed.

The ``DIB_OFFLINE`` or more specific ``DIB_DEBIAN_USE_DEBOOTSTRAP_CACHE``
variables can be set to prefer the use of a pre-cached root filesystem
tarball.

The ``DIB_DEBOOTSTRAP_EXTRA_ARGS`` environment variable may be used to
pass extra arguments to the debootstrap command used to create the
base filesystem image. If --keyring is is used in ``DIB_DEBOOTSTRAP_EXTRA_ARGS``,
it will override ``DIB_APT_KEYRING`` if that is used as well.

For further information about ``DIB_DEBIAN_DEBOOTSTRAP_SCRIPT`` ,
``DIB_DEBIAN_USE_DEBOOTSTRAP_CACHE`` and ``DIB_DEBOOTSTRAP_EXTRA_ARGS``
please consult "README.rst" of the debootstrap element.

----------
Networking
----------

By default ``/etc/network/interfaces.d/eth[0|1]`` files will be
created and enabled with DHCP networking.  If you do not wish this to
be done, set ``DIB_APT_MINIMAL_CREATE_INTERFACES`` to ``0``.  If you
need different interface names than ``eth[0|1]`` set
``DIB_NETWORK_INTERFACE_NAMES`` to a space separated list of network
interface names like:

.. code-block:: bash

   export DIB_NETWORK_INTERFACE_NAMES="ens3 ens4"

-------------------
Note on ARM systems
-------------------

Because there is not a one-to-one mapping of ``ARCH`` to a kernel package, if
you are building an image for ARM on debian, you need to specify which kernel
you want in the environment variable ``DIB_ARM_KERNEL``. For instance, if you want
the ``linux-image-mx5`` package installed, set ``DIB_ARM_KERNEL`` to ``mx5``.

.. element_deps::

<MSG> Merge "fix some errors for ill-syntax in  README.rst"
<DFF> @@ -56,7 +56,7 @@ tarball.
 
 The ``DIB_DEBOOTSTRAP_EXTRA_ARGS`` environment variable may be used to
 pass extra arguments to the debootstrap command used to create the
-base filesystem image. If --keyring is is used in ``DIB_DEBOOTSTRAP_EXTRA_ARGS``,
+base filesystem image. If --keyring is used in ``DIB_DEBOOTSTRAP_EXTRA_ARGS``,
 it will override ``DIB_APT_KEYRING`` if that is used as well.
 
 For further information about ``DIB_DEBIAN_DEBOOTSTRAP_SCRIPT`` ,

{'commit': 'diff --git a/diskimage_builder/elements/debootstrap/README.rst b/diskimage_builder/elements/debootstrap/README.rst\nindex ad69a8c1..e0e32ab0 100644\n--- a/diskimage_builder/elements/debootstrap/README.rst\n+++ b/diskimage_builder/elements/debootstrap/README.rst\n@@ -56,7 +56,7 @@ tarball.\n \n The ``DIB_DEBOOTSTRAP_EXTRA_ARGS`` environment variable may be used to\n pass extra arguments to the debootstrap command used to create the\n-base filesystem image. If --keyring is is used in ``DIB_DEBOOTSTRAP_EXTRA_ARGS``,\n+base filesystem image. If --keyring is used in ``DIB_DEBOOTSTRAP_EXTRA_ARGS``,\n it will override ``DIB_APT_KEYRING`` if that is used as well.\n \n For further information about ``DIB_DEBIAN_DEBOOTSTRAP_SCRIPT`` ,\n', 'commit_subject': 'Merge "fix some errors for ill-syntax in  README.rst"', 'repo_name': 'openstack/diskimage-builder', 'committer': {'name': 'Gerrit Code Review', 'email': '61e62b213a1a56f7695845df4fc372a10cb0a73e@openstack.org', 'time_sec': '1542592789', 'tz_offset': '0', 'date': {'seconds': '1542592789'}}, 'commit_tree': '0cde0ef0e941873880c44b3299e88d176ab70338', 'commit_message': 'Merge "fix some errors for ill-syntax in  README.rst"', 'language_name': 'Python', 'license': 'apache-2.0', 'hunks': '@@ -56,7 +56,7 @@ tarball.\n \n The ``DIB_DEBOOTSTRAP_EXTRA_ARGS`` environment variable may be used to\n pass extra arguments to the debootstrap command used to create the\n-base filesystem image. If --keyring is is used in ``DIB_DEBOOTSTRAP_EXTRA_ARGS``,\n+base filesystem image. If --keyring is used in ``DIB_DEBOOTSTRAP_EXTRA_ARGS``,\n it will override ``DIB_APT_KEYRING`` if that is used as well.\n \n For further information about ``DIB_DEBIAN_DEBOOTSTRAP_SCRIPT`` ,\n', 'addition_count': 1, 'deletion_count': 1, 'src_file': 'a/diskimage_builder/elements/debootstrap/README.rst', 'tgt_file': 'b/diskimage_builder/elements/debootstrap/README.rst', 'file_extension': '.rst', 'before_file': '===========\ndebootstrap\n===========\n\nBase element for creating minimal debian-based images.\n\nThis element is incomplete by itself, you\'ll want to use elements like\ndebian-minimal or ubuntu-minimal to get an actual base image.\n\nThere are two ways to configure apt-sources:\n\n1. Using the standard way of defining the default, backports, updates\n   and security repositories is the default. In this case you can\n   overwrite the two environment variables to adapt the behavior:\n\n   * ``DIB_DISTRIBUTION_MIRROR``: the mirror to use (default:\n     `<http://deb.debian.org/debian>`__)\n   * ``DIB_DEBIAN_COMPONENTS``: (default: ``main``) a comma\n     separated list of components. For Debian this can be\n     e.g. ``main,contrib,non-free``.\n\n   By default only the ``main`` component is used. If\n   ``DIB_DEBIAN_COMPONENTS`` (comma separated) from the\n   ``debootstrap`` element has been set, that list of components will\n   be used instead.\n\n   Backports, updates and security are included unless ``DIB_RELEASE``\n   is ``unstable``.\n\n2. Complete configuration given in the variable ``DIB_APT_SOURCES_CONF``.\n\n   Each line contains exactly one entry for the sources.list.d\n   directory.  The first word must be the logical name (which is used\n   as file name with ``.list`` automatically appended), followed by a\n   colon ``:``, followed by the complete repository specification.\n\n   .. code-block:: bash\n\n      DIB_APT_SOURCES_CONF=\\\n        "default:deb http://10.0.0.10/ stretch main contrib\n         mysecurity:deb http://10.0.0.10/ stretch-security main contrib"\n\nIf necessary, a custom apt keyring and debootstrap script can be\nsupplied to the ``debootstrap`` command via ``DIB_APT_KEYRING`` and\n``DIB_DEBIAN_DEBOOTSTRAP_SCRIPT`` respectively. Both options require the\nuse of absolute rather than relative paths.\n\nUse of this element will also require the tool \'debootstrap\' to be\navailable on your system. It should be available on Ubuntu, Debian,\nand Fedora. It is also recommended that the \'debian-keyring\' package\nbe installed.\n\nThe ``DIB_OFFLINE`` or more specific ``DIB_DEBIAN_USE_DEBOOTSTRAP_CACHE``\nvariables can be set to prefer the use of a pre-cached root filesystem\ntarball.\n\nThe ``DIB_DEBOOTSTRAP_EXTRA_ARGS`` environment variable may be used to\npass extra arguments to the debootstrap command used to create the\nbase filesystem image. If --keyring is is used in ``DIB_DEBOOTSTRAP_EXTRA_ARGS``,\nit will override ``DIB_APT_KEYRING`` if that is used as well.\n\nFor further information about ``DIB_DEBIAN_DEBOOTSTRAP_SCRIPT`` ,\n``DIB_DEBIAN_USE_DEBOOTSTRAP_CACHE`` and ``DIB_DEBOOTSTRAP_EXTRA_ARGS``\nplease consult "README.rst" of the debootstrap element.\n\n----------\nNetworking\n----------\n\nBy default ``/etc/network/interfaces.d/eth[0|1]`` files will be\ncreated and enabled with DHCP networking.  If you do not wish this to\nbe done, set ``DIB_APT_MINIMAL_CREATE_INTERFACES`` to ``0``.  If you\nneed different interface names than ``eth[0|1]`` set\n``DIB_NETWORK_INTERFACE_NAMES`` to a space separated list of network\ninterface names like:\n\n.. code-block:: bash\n\n   export DIB_NETWORK_INTERFACE_NAMES="ens3 ens4"\n\n-------------------\nNote on ARM systems\n-------------------\n\nBecause there is not a one-to-one mapping of ``ARCH`` to a kernel package, if\nyou are building an image for ARM on debian, you need to specify which kernel\nyou want in the environment variable ``DIB_ARM_KERNEL``. For instance, if you want\nthe ``linux-image-mx5`` package installed, set ``DIB_ARM_KERNEL`` to ``mx5``.\n\n.. element_deps::\n', 'message': 'Merge "fix some errors for ill-syntax in  README.rst"', 'author_name': 'Gerrit Code Review', 'lang': 'rst'}