pre-introspection
=================

.. _pre-introspection_check-network-gateway:

check-network-gateway
---------------------

Check network_gateway on the provisioning network.

If `network_gateway` in `undercloud.conf` is different from `local_ip`, verify that the gateway exists and is reachable.


- **hosts**: undercloud
- **groups**: pre-introspection
- **metadata**: 
- **parameters**: 

`View validation source code <http://git.openstack.org/cgit/openstack/tripleo-validations/plain/validations/check-network-gateway.yaml>`__.


.. _pre-introspection_ctlplane-ip-range:

ctlplane-ip-range
-----------------

Check the number of IP addresses available to overcloud nodes.

Verify that the number of IP addresses defined in `dhcp_start` and `dhcp_end` fields in `undercloud.conf` is not too low.


- **hosts**: undercloud
- **groups**: pre-introspection
- **metadata**: 
- **parameters**: 

  - **ctlplane_iprange_min_size**: 25

`View validation source code <http://git.openstack.org/cgit/openstack/tripleo-validations/plain/validations/ctlplane-ip-range.yaml>`__.


.. _pre-introspection_dhcp-introspection:

dhcp-introspection
------------------

DHCP on the Introspection Network.

An unexpected DHCP server on the network used for node introspection can cause some nodes to not be inspected.
This validations checks for the DHCP responses on the interface specified in ironic-inspector.conf.


- **hosts**: undercloud
- **groups**: pre-introspection
- **metadata**: 
- **parameters**: 

`View validation source code <http://git.openstack.org/cgit/openstack/tripleo-validations/plain/validations/dhcp-introspection.yaml>`__.


.. _pre-introspection_undercloud-cpu:

undercloud-cpu
--------------

Verify undercloud fits the CPU core requirements.

Make sure that the undercloud has enough CPU cores.
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform/7/html/Director_Installation_and_Usage/sect-Undercloud_Requirements.html


- **hosts**: undercloud
- **groups**: prep, pre-introspection
- **metadata**: 
- **parameters**: 

  - **min_undercloud_cpu_count**: 8

`View validation source code <http://git.openstack.org/cgit/openstack/tripleo-validations/plain/validations/undercloud-cpu.yaml>`__.


.. _pre-introspection_undercloud-disk-space:

undercloud-disk-space
---------------------

Verify undercloud fits the disk space requirements.

Make sure that the root partition on the undercloud node is large enough.
We first check for an explicit `/var` mount point since that's where we store logs and images and if it doesn't exist, we fall back to `/`.
http://tripleo.org/environments/environments.html#id5


- **hosts**: undercloud
- **groups**: prep, pre-introspection
- **metadata**: 
- **parameters**: 

  - **min_undercloud_disk_gb**: 60

`View validation source code <http://git.openstack.org/cgit/openstack/tripleo-validations/plain/validations/undercloud-disk-space.yaml>`__.


.. _pre-introspection_undercloud-ram:

undercloud-ram
--------------

Verify the undercloud fits the RAM requirements.

Verify that the undercloud has enough RAM.
https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform/7/html/Director_Installation_and_Usage/sect-Undercloud_Requirements.html


- **hosts**: undercloud
- **groups**: prep, pre-introspection
- **metadata**: 
- **parameters**: 

  - **min_undercloud_ram_gb**: 16

`View validation source code <http://git.openstack.org/cgit/openstack/tripleo-validations/plain/validations/undercloud-ram.yaml>`__.


.. _pre-introspection_undercloud-tokenflush:

undercloud-tokenflush
---------------------

Verify token_flush is enabled in keystone users crontab..

Without a token_flush crontab enabled for the keystone user, the keystone database can grow very large.  This validation checks that the keystone token_flush crontab has been set up.


- **hosts**: undercloud
- **groups**: pre-introspection
- **metadata**: 
- **parameters**: 

  - **cron_check**: keystone-manage token_flush

`View validation source code <http://git.openstack.org/cgit/openstack/tripleo-validations/plain/validations/undercloud-tokenflush.yaml>`__.