++ On 05/13/2015 11:57 AM, Swann Croiset wrote:
Hi Fuelers,It would be valuable to configure the healthcheck middleware [0] for all services deployed by fuel, available since Kilo. Several (obvious) benefits: - Provide a common API for healthcheck across OpenStack services - HAproxy performs more accurate HTTP checks for its backend status - Operators can disable a service (maintenance mode, test, ..) by creating a simple file w/o stopping the service. - monitoring systems can leverage this API to provide insight information of service status with a lighten checks w/o authentication (in opposition to heavily check for specific resources) <-- here my use case Does it sound reasonable to target this for 7.0? any clue? drawback? I can handle the writing of the spec to bootstrap this effort and maybe more. Implementation details to estimate the workload: * Configure WSGI pipelines for each project "api-paste.ini" * For security reason as mentioned in the original spec [1], the 'healthcheck' URI mustn't be open to the WWW: * restricted access to local/management network or by auth * or random/configurable URI at deployment time * HAproxy "httpchk" option will be "GET /<healthcheck path>" instead of the default "OPTION /" Parallel (future) work on oslo or whatever: * extend with specific checks (DB unavailable, RabbitMQ stuck, ..) to provide a detailed status of subsystem dependencies. [0] http://docs.openstack.org/developer/oslo.middleware/healthcheck_plugins.html [1] http://git.openstack.org/cgit/openstack/oslo-specs/plain/specs/kilo/oslo-middleware-healthcheck.rst __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: [email protected]?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
__________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: [email protected]?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
