f068e6aa6e
The current output for package-installs-v2 is inscrutable [1] The problem starts with process_output() which is not capturing stderr. This means that any stderr output is dislocated from any stdout output around it. This is *really* confusing as you get a bunch of seemingly meaningless stderr output from any calls before you see any stdout (e.g. in [1] you can see random yum error output that should have been with the yum call)). The simplest thing to do is to redirect stderr to stdout which keeps everything in sync. This causes a slight problem, however, because pkg-map outputs both status information and errors on stderr. To work around this but maintain compatibility, we add a "--prefix" argument that prepends mapped packages from pkg-map with a value we can match on. The existing status/debug output from pkg-map is low-value; modify the call so that it will be traced only at higher debug levels (e.g. -x -x). The current loop is also calling pkg-map for every package in every element (this is why in [1] the same message is repeated over and over). This is unnecessary; it only needs to pkg-map once for each element, giving the package list as the arguments. Create package lists by element and pass those to pkg-map. As a cleanup, there is no point in printing e.output if the process_output fails for the install because we are already tracing it; i.e. the output, even for failures, is already in the logs. Printing it again just duplicates the output. [2] is an extract showing what I feel is a much more understandable log output for a fairly complex install. [1] http://paste.openstack.org/show/595118/ [2] http://paste.openstack.org/show/595303/ Change-Id: Ia74602a5d2db032a476481caec0e45dab013d54f |
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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 --release RELEASE The release to use for translation. Defaults to DIB_RELEASEAny element may create its own pkg-map JSON config file using the one of 4 sections for the release/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 release is a specification of distro; i.e. the distro and release must mach for a translation.
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:
{ "release": { "fedora": { "23": { "nova_package": "foo" "bar" } } }, "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.