[Rdo-list] [OpenStack-docs] [install-guide] Status of RDO

Tue Nov 3 11:59:15 UTC 2015

Matt Kassawara <mkassawara at gmail.com> wrote:

> Ihar,
>
> I think distribution packages should bundle upstream source without  
> alteration to maximize flexibility for authors of deployment tools (or  
> simple instructions) that choose to use packages. In other words,  
> distribution packages should include few if any decisions on how to  
> deploy services. Instead, leave those decisions to authors of deployment  
> tools including organizations that produce distribution packages. For  
> example, decisions on how to deploy OpenStack using RDO packages should  
> reside in products like Packstack and RHEL-OSP. In the meantime, content  
> in /usr/share/$service directories impacts the following portions in the  
> installation guide:

You mix things here. RDO *is* a product, and *is* successfully used by  
companies without paying for RHEL-OSP subscription. Manual installation is  
still a supported way to deploy RDO, so anything that makes deployer life  
easier (like reasonable defaults) is beneficial.

Below, I will comment on neutron only and will leave other components to  
respective team members.

>
> 1) http://docs.openstack.org/draft/install-guide-rdo/keystone-verify.html  
> - The keystone-paste.ini file should reside in the /etc/keystone  
> directory.
>
> 2) http://docs.openstack.org/draft/install-guide-rdo/glance.html - The  
> glance-api-dist.conf and glance-registry-dist.conf files contain defunct  
> options in the [keystone_authtoken] section. Also, the *-paste.ini files  
> should reside in the /etc/glance directory.
>
> 3) http://docs.openstack.org/draft/install-guide-rdo/nova.html - The  
> nova-dist.conf file contains defunct options in the [keystone_authtoken]  
> section, assumes use of nova-network, and contains several opinions about  
> libvirt configuration.
>
> 4) http://docs.openstack.org/draft/install-guide-rdo/neutron.html - The  
> neutron-dist.conf file specifies a notification driver regardless of a  
> consumer (e.g., ceilometer) and disables nova-neutron interaction. Also,  
> the *-paste.ini file should reside in the /etc/neutron directory.
>

I agree nova-neutron notifications should not be disabled (I merged a patch  
for that yesterday: https://review.gerrithub.io/#/c/251171/)

For notification driver, I am not sure I follow. The assumption is that  
DHCP agent is a common piece of neutron setup that is widely used, and  
since it relies on RPC notifications, we enable it by default. Do you  
believe it’s better to make everyone using refarch neutron to define it for  
themselves?

For *-paste.ini file, I believe the RDO assumption is that there is no  
reason to modify it, hence it’s not available for user modifications. Can  
you show me the exact place where installation guide became more complex  
due to -paste.ini file located under /usr/share?

> 5) http://docs.openstack.org/draft/install-guide-rdo/cinder.html - The  
> cinder-dist.conf file contains defunct options in the  
> [keystone_authtoken] section. Interestingly, the *-paste.ini files  
> correctly reside in the /etc/cinder directory.
>
> 6) http://docs.openstack.org/draft/install-guide-rdo/swift.html -  
> Interestingly, no /usr/share/swift directory exists. However, the  
> configuration files in /etc/swift are considerably out of date and easier  
> to overwrite from upstream source than attempt to fix via procedure.
>
> 7) http://docs.openstack.org/draft/install-guide-rdo/heat.html - The  
> heat-dist.conf file contains defunct options in the [keystone_authtoken]  
> section, contains a defunct database connection option (belongs in  
> [database]), and enables a defunct message queue (Qpid). Also, the  
> *-paste.ini file should reside in the /etc/heat directory.
>
> I haven't looked at the ceilometer packages recently, but I suspect they  
> involve similar issues.
>
> Matt
>
>
>
> On Mon, Nov 2, 2015 at 4:34 AM, Ihar Hrachyshka <ihrachys at redhat.com>  
> wrote:
>
> > On 21 Oct 2015, at 15:32, Matt Kassawara <mkassawara at gmail.com> wrote:
> >
> > I think packages available for standalone installation (i.e., without a  
> deployment tool) should include complete upstream configuration files in  
> standard locations without modification. In the case of *-dist.conf files  
> with RDO packages, they seldom receive updates leading to deprecation  
> warnings and sometimes override useful upstream default values. For  
> example, most if not all services default to keystone for authentication  
> (auth_strategy), yet the RDO neutron packages revert authentication to  
> "noauth" in the *-dist.conf file. In another example, the RDO keystone  
> package only includes the keystone-paste.ini file as  
> /usr/share/keystone/keystone-dist-paste.ini rather than using the  
> standard location and name which leads to confusion, particularly for new  
> users. The installation guide contains quite a few extra steps and  
> option-value pairs that work around the existence and contents of  
> *-dist.conf files... additions that unnecessarily increase complexity for  
> our audience of new users.
>
> Can you provide links to the guide pages that are complicated by the  
> existence of -dist.conf files?
>
> I agree that some values may not be optimal (f.e. auth_strategy indeed  
> should not be overridden; I sent a patch [1] to remove it from  
> -dist.conf); but in principle, there should be a way for distributions to  
> change defaults, and it should not be expected that all distributions  
> ship identical configuration files.
>
> [1]: https://review.gerrithub.io/#/c/251170/
>
> Ihar

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