Hi Team, I am installing Tripleo using the below link https://docs.openstack.org/project-deploy-guide/tripleo-docs/latest/deployme... In the Introspect section, When I executed the command openstack tripleo validator run --group pre-introspection I got the following error: +--------------------------------------+---------------------------------+--------+------------+-----------------+-------------------+-------------+ | UUID | Validations | Status | Host_Group | Status_by_Host | Unreachable_Hosts | Duration | +--------------------------------------+---------------------------------+--------+------------+-----------------+-------------------+-------------+ | 6e74e655-8f1b-439d-8d0b-205290669f80 | check-cpu | PASSED | localhost | localhost | | 0:00:01.261 | | edb371b8-bc13-4840-92b2-61c4e45978cf | check-disk-space | PASSED | localhost | localhost | | 0:00:04.480 | | 35c871b9-37d1-44d8-a475-508e642dfd8e | check-ram | PASSED | localhost | localhost | | 0:00:02.173 | | c12882a3-8730-4abf-bdcb-56b3a8545cee | check-selinux-mode | PASSED | localhost | localhost | | 0:00:01.546 | | 659017ae-b937-4ec7-9231-32f14be8c4e5 | check-network-gateway | FAILED | undercloud | No host matched | | | | 3c7c4299-2ce1-4717-8953-c616ffeee66a | undercloud-disk-space | FAILED | undercloud | No host matched | | | | 2f0239db-d530-48eb-b606-f82179e72e50 | undercloud-neutron-sanity-check | FAILED | undercloud | No host matched | | | | e9c5b3d3-6fb1-4e93-b7b8-d67bdd6273e9 | ctlplane-ip-range | FAILED | undercloud | No host matched | | | | a69badb6-9a08-41a1-b5d6-fc10b8046687 | dhcp-introspection | FAILED | undercloud | No host matched | | | | 9045a1f0-5aea-43d3-9157-56260d65e4dc | undercloud-tokenflush | FAILED | undercloud | No host matched | | | +--------------------------------------+---------------------------------+--------+------------+-----------------+-------------------+-------------+ Then I created the following inventory file: [Undercloud] undercloud Passed this command while running the pre-introspection command. It then executed successfully. But with Pre-deployment, it is still failing even after passing the inventory +--------------------------------------+-------------------------------------+--------+--------------+-----------------+-------------------+-------------+ | UUID | Validations | Status | Host_Group | Status_by_Host | Unreachable_Hosts | Duration | +--------------------------------------+-------------------------------------+--------+--------------+-----------------+-------------------+-------------+ | 917c669c-fd74-4d41-98d8-5442dbbd8ee1 | 512e | PASSED | localhost | localhost | | 0:00:00.504 | | c4ece97b-936d-4034-8e9c-6239bd0fef7a | dns | PASSED | localhost | localhost | | 0:00:00.481 | | 93611c13-49a2-4cae-ad87-099546459481 | service-status | PASSED | all | undercloud | | 0:00:06.942 | | 175ba815-e9cd-4b76-b637-c489f1df3bcd | validate-selinux | PASSED | all | undercloud | | 0:00:02.433 | | 917618cb-af29-4517-85e7-0d3a3627c105 | package-version | FAILED | all | undercloud | | 0:00:03.576 | | 70099d55-6a29-4b77-8b00-b54c677520cb | ceph-ansible-installed | PASSED | undercloud | undercloud | | 0:00:02.850 | | 1889dd61-387a-4efe-9559-effff6f2d22e | ceph-dependencies-installed | FAILED | allovercloud | No host matched | | | | 22f1764d-bb10-4bde-b72f-b714e6263f4b | tls-everywhere-pre-deployment | FAILED | undercloud | undercloud | | 0:00:31.559 | | 26f0cbf1-3902-40c0-ac9d-a01884d653eb | undercloud-debug | FAILED | undercloud | undercloud | | 0:00:02.057 | | dc7ecc45-02ce-48b7-8f1b-7f21ae4fabb8 | collect-flavors-and-verify-profiles | FAILED | undercloud | undercloud | | 0:00:00.884 | | 676bc7f4-f3a0-47c6-a106-2219ddf698b9 | undercloud-heat-purge-deleted | FAILED | undercloud | undercloud | | 0:00:02.138 | | 3983efc6-ed81-4886-8170-09cfe41f1255 | undercloud-process-count | PASSED | undercloud | undercloud | | 0:00:06.164 | | 7b1a544b-ce56-4747-be20-d0681d16085a | default-node-count | FAILED | undercloud | undercloud | | 0:00:00.934 | | 9167af1b-038c-4c68-afd1-f875218aceb4 | dhcp-provisioning | FAILED | undercloud | undercloud | | 0:00:02.456 | | 38c99024-5932-4087-baf1-a8aae9a58d5c | ironic-boot-configuration | FAILED | undercloud | undercloud | | 0:00:00.882 | | da1be072-df2c-483d-99f1-a4c1177c380e | network-environment | FAILED | undercloud | undercloud | | 0:00:00.880 | | ed416ce8-8953-487f-bb35-6212a1b213d0 | node-disks | FAILED | undercloud | undercloud | | 0:00:01.934 | | 80118738-dc3c-4751-82c1-403f0187f980 | switch-vlans | FAILED | undercloud | undercloud | | 0:00:01.931 | | f7dcf2fd-c090-4149-aae8-98fb8bbac8c7 | system-encoding | PASSED | all | undercloud | | 0:00:00.366 | +--------------------------------------+-------------------------------------+--------+--------------+-----------------+-------------------+-------------+ Also this step of passing the inventory file is not mentioned anywhere in the document. Is there anything I am missing? Regards Anirudh Gupta