2015-03-22 20:11:55 +00:00
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==============
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debian-minimal
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==============
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2016-05-11 20:00:12 +00:00
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Create a minimal image based on Debian. We default to unstable but `DIB_RELEASE`
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can be set to any series of Debian.
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2015-03-22 20:11:55 +00:00
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2016-05-11 20:00:12 +00:00
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There are two ways to configure apt-sources:
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2015-03-22 20:11:55 +00:00
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2016-05-11 20:00:12 +00:00
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1. Using the standard way of defining the default, backports, updates
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and security repositories is the default. In this case you can
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overwrite the two environment variables to adapt the behavior:
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`DIB_DISTRIBUTION_MIRROR`: the mirror to use
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default: http://httpredir.debian.org/debian
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`DIB_DEBIAN_COMPONENTS`: (default) `main`
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a comma separated list of components. For Debian this can be
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e.g. `main,contrib,non-free`.
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2016-02-12 21:57:58 +00:00
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2016-05-11 20:00:12 +00:00
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Note that the default Debian series is `unstable`, and the default
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mirrors for Debian can be problematic for `unstable`. Because apt
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does not handle changing Packages files well across multiple out of
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sync mirrors, it is recommended that you choose a single mirror of
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Debian, and pass it in via `DIB_DISTRIBUTION_MIRROR`.
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By default only `main` component is used. If
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`DIB_DEBIAN_COMPONENTS` (comma separated) from the `debootstrap`
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element has been set, that list of components will be used instead.
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Backports, updates and security are included unless `DIB_RELEASE`
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is `unstable`.
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2. Complete configuration given in the variable
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`DIB_APT_SOURCES_CONF`.
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Each line contains exactly one entry for the sources.list.d
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directory.
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The first word must be the logical name (which is used as file name
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with `.list` automatically appended), followed by a colon `:`,
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followed by the complete repository specification.
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Example:
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DIB_APT_SOURCES_CONF=\
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"default:deb http://10.0.0.10/ stretch main contrib
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mysecurity:deb http://10.0.0.10/ stretch-security main contrib"
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2016-02-12 21:57:58 +00:00
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2015-03-22 20:11:55 +00:00
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If necessary, a custom apt keyring and debootstrap script can be
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supplied to the `debootstrap` command via `DIB_APT_KEYRING` and
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`DIB_DEBIAN_DEBOOTSTRAP_SCRIPT` respectively. Both options require the
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use of absolute rather than relative paths.
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Use of this element will also require the tool 'debootstrap' to be
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available on your system. It should be available on Ubuntu, Debian,
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and Fedora. It is also recommended that the 'debian-keyring' package
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be installed.
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The `DIB_OFFLINE` or more specific `DIB_DEBIAN_USE_DEBOOTSTRAP_CACHE`
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variables can be set to prefer the use of a pre-cached root filesystem
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tarball.
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The `DIB_DEBOOTSTRAP_EXTRA_ARGS` environment variable may be used to
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pass extra arguments to the debootstrap command used to create the
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base filesystem image. If --keyring is is used in `DIB_DEBOOTSTRAP_EXTRA_ARGS`,
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it will override `DIB_APT_KEYRING` if that is used as well.
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-------------------
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Note on ARM systems
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-------------------
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Because there is not a one-to-one mapping of `ARCH` to a kernel package, if
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you are building an image for ARM on debian, you need to specify which kernel
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you want in the environment variable `DIB_ARM_KERNEL`. For instance, if you want
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the `linux-image-mx5` package installed, set `DIB_ARM_KERNEL` to `mx5`.
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