openstack/diskimage-builder
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diskimage-builder/elements/pkg-map
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Antoine Musso 8d052a54a7 Turn docs warnings into errors and fix issues 
Set the pbr option 'warnerrors' to make build_sphinx turns warnings into
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README.rst

pkg-map

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.