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diskimage-builder/elements/pkg-map
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Gregory Haynes b10cfa841a Make some pkg-map errors soft 
An app using pkg-map (like package-installs) might want to distinguish
between a hard error (invalid pkg-map file) and a soft error (no
mapping found). Currently this is not possible because we only return
with error values of 1.

Also printing error messages to stderror so we can still make use of
stdout data during a soft error.

Change-Id: I8bef56d3a74e8530afb8c58ac50ca3e9f7700639
2014-11-21 12:49:49 -08:00
..
bin Make some pkg-map errors soft 2014-11-21 12:49:49 -08:00
extra-data.d Deprecate map-packages, replaced by pkg-map 2014-11-19 12:04:12 -05:00
README.md Allow to specify an empty package list in pkg_map 2014-08-18 06:24:55 +00:00

README.md

Map package names to distro specific packages.

Provides the following:

  • bin/pkg-map

    usage: pkg-map [-h] [--element ELEMENT] [--distro DISTRO]

    Translate package name to distro specific name.

    optional arguments: -h, --help show this help message and exit --element ELEMENT The element (namespace) to use for translation. --distro DISTRO The distro name to use for translation. Defaults to DISTRO_NAME

  • Any element may create its own pkg-map JSON config file using the one of 3 sections for the distro/family/ and or default. The family is set automatically within pkg-map based on the supplied distro name. Families include:

    • redhat: includes centos, fedora, and rhel distros
    • debian: includes debian and ubuntu distros
    • suse: includes the opensuse distro

    The most specific section takes priority. An empty package list can be provided. Example for Nova and Glance (NOTE: using fictitious package names for Fedora and package mapping for suse family to provide a good example!)

    Example format: { "distro": { "fedora": { "nova_package": "openstack-compute", "glance_package": "openstack-image" } }, "family": { "redhat": { "nova_package": "openstack-nova", "glance_package": "openstack-glance" }, "suse": { "nova_package": "" } }, "default": { "nova_package": "nova", "glance_package": "glance" } }

    Example commands using this format:

    pkg-map --element nova-compute --distro fedora nova_package

    Returns: openstack-compute

    pkg-map --element nova-compute --distro rhel nova_package

    Returns: openstack-nova

    pkg-map --element nova-compute --distro ubuntu nova_package

    Returns: nova

    pkg-map --element nova-compute --distro opensuse nova_package

    Returns:

  • This output can be used to filter what other tools actually install (install-packages can be modified to use this for example)

  • Individual pkg-map files live within each element. For example if you are created an Apache element your pkg-map JSON file should be created at elements/apache/pkg-map.