Open Stack

On 7/6/16, 3:24 PM, "fabrice grelaud" <fabrice.grelaud at u-bordeaux.fr> wrote:

>
>I would like to know what is the best approach to customize our openstack-ansible deployment if we want to use our existing solution of ELK and centralized rsyslog server.
>
>We deploy openstack-ansible (mitaka 13.1.2 release) on our infrastructure with for convenient and no risk a vm for syslog server role. That is ok. But now if i want to use our centralized syslog server ?
>
>What i need is to set ip address of our existing server to the rsyslog client (containers + metal) and of course configure our rsyslog.conf to manage openstack template.
>So:
>- no need to create on the log server a lxc container (setup-hosts.yml: lxc-hosts-setup, lxc-containers-create)
>- no need to install syslog server (setup-infrastructure.yml: rsyslog-install.yml)

To add more rsyslog targets for logs you can see in https://github.com/openstack/openstack-ansible-rsyslog_client/blob/stable/mitaka/defaults/main.yml#L56-L73 that there is an example of the changes you need to make to /etc/openstack_deploy/user_variables.yml to include additional targets.

You may be able to do away with the log host altogether as you desire by simply leaving the ‘log_hosts’ group out of the /etc/openstack_deploy/openstack_user_config.yml and /etc/openstack_deploy/conf.d/*.yml files. This is an untested code path so you may find that we make assumptions about the presence of the log_host so please register bugs for any issues you find so that we can eradicate those assumptions. To my mind the log host is not required for a deployment if the deployer so chooses (and especially if the deployer has alternative syslog targets in-place).

>How can i modify my openstack-ansible environment (/etc/openstack_deploy, env.d, conf.d, openstack_user_config.yml, user_variables.yml, playbook ?) the most transparent manner and that permits minor release update simply ?

As long as you’re only editing things in user space (i.e. In /etc/openstack_deploy/) and not in-tree (i.e. In /opt/openstack-ansible/) then the minor upgrade process is documented here: http://docs.openstack.org/developer/openstack-ansible/mitaka/install-guide/app-minorupgrade.html

I hope that this answers your questions!

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