On 12/23/2010 06:10 PM, Brian_Kosick(a)McAfee.com wrote:
I'm trying to build el6 on a koji build host that is el5.5.
The stock rhel5 version of rpm cannot handle this. You'll need to build
I believe that what I may want to do is create a el6 build host and
use channels to control which host builds the el6 dist tag.
However, I cannot seem to find information on how to create and use
custom channels with koji and only vague references to the concept of
channels in koji. For instance my questions would be:
This will work also. To direct different builds to different channels,
you'll need to write a custom channel policy. You can read more about
that here: https://fedoraproject.org/wiki/Koji/Policies
$ koji help --admin |grep channel
add-host-to-channel Add a host to a channel
remove-host-from-channel Remove a host from a channel
In koji-1.5.0 and later, the add-host-to-channel command supports a
--new option that will create the channel. Otherwise, you can add it in
the db manually with a simple insert... something like: insert into
For your channel policy, you'll want to go with a small variation of the
default, so something like:
has req_channel :: req
is_child_task :: parent
method build && match target dist-6E-* :: use my-new-channel
all :: use default
How to create a new channel? How to associate a tag/target/dist with
a channel? I'm assuming that the koji add-host-to-channel command
would add the new el6 host correctly, but how to then remove the the
new host from the "default" channel so that it doesn't build el5 and
which,. I suspect, would have the same rpm db issues in reverse.
The reverse issue does not occur. An el6 box can build el5 packages just
However, if you still want to remove hosts from a channel, you can use
the remove-host-from-channel command.