# Ansible Automation Platform installation: An Automation Gateway host must exist in inventory **URL:** \ **Category:** Get Help\ **Tags:** aap, awx\ **Created:** [November 13, 2024, 8:51am UTC](https://forum.ansible.com/t/ansible-automation-platform-installation-an-automation-gateway-host-must-exist-in-inventory/10870 "2024-11-13T08:51:58Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![dandy\_auto](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/dandy_auto/32/5428_2.png) [@dandy\_auto](https://forum.ansible.com/u/dandy_auto)\ **Post date:** [November 13, 2024, 8:51am UTC](https://forum.ansible.com/t/ansible-automation-platform-installation-an-automation-gateway-host-must-exist-in-inventory/10870/1 "2024-11-13T08:51:58Z")
* * * Hi, I’m trying to install Ansible Automation Platform (AAP) using the setup bundle `ansible-automation-platform-setup-bundle-2.5-2-x86_64`, but I’m running into an issue. When I run `./setup.sh -i inventory`, I get the following error: ```auto TASK [ansible.automation_platform_installer.check_config_static : Ensure Gateway host exists] *** fatal: [aap-01.test.com -> localhost]: FAILED! => {"changed": false, "msg": "An Automation Gateway host must exist in inventory."} NO MORE HOSTS LEFT ************************************************************* PLAY RECAP ********************************************************************* aap-01.test.com : ok=4 changed=0 unreachable=0 failed=1 skipped=25 rescued=0 ignored=0 localhost : ok=0 changed=0 unreachable=0 failed=0 skipped=1 rescued=0 ignored=0 [error] Oops! An error occurred while running setup. [warn] Setup log saved to ./setup.log. ``` Here’s my inventory file: ```auto [automationcontroller] aap-01.test.com [database] [automationcontroller:vars] peers=execution_nodes [automationedagateway] aap-01.test.com [automationcontroller_gateway] aap-01.test.com [execution_nodes] aap-01.test.com [automationhub] aap-01.test.com [automationedacontroller] aap-01.test.com [all:vars] admin_password='Password1' pg_host=aap-01.test.com pg_port=5432 pg_database='awx' pg_username='awx' pg_password='Password1' # AAP EDA Controller automationedacontroller_admin_password=Password1 automationedacontroller_pg_host=aap-01.test.com automationedacontroller_pg_database=awx automationedacontroller_pg_username=awx automationedacontroller_pg_password=Password1 # AAP Gateway automationgateway_admin_password=Password1 automationgateway_pg_host=aap-01.test.com automationgateway_pg_database=awx automationgateway_pg_username=awx automationgateway_pg_password=Password1 # AAP Automation Hub automationhub_admin_password=Password1 automationhub_pg_host=aap-01.test.com automationhub_pg_database=awx automationhub_pg_username=awx ``` I’m not sure why I’m getting the “Automation Gateway host must exist in inventory” error, as I’ve included it in the `[automationedagateway]` group. Any help would be appreciated! * * * ---
**Author:** ![akira6592](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/akira6592/32/222_2.png) [@akira6592](https://forum.ansible.com/u/akira6592)\ **Post date:** [November 17, 2024, 1:38pm UTC](https://forum.ansible.com/t/ansible-automation-platform-installation-an-automation-gateway-host-must-exist-in-inventory/10870/2 "2024-11-17T13:38:12Z")
Hello @dandy_auto. Welcome to Ansible community! The inventory file must include entry for Automation Gateway. The [sample](https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.5/html/rpm_installation/assembly-platform-install-scenario#ref-gateway-controller-ext-db) is as below. The group names must be as specified by documents. ```ini [automationgateway] aap-01.test.com ``` Automation Gateway was introduced in AAP 2.5. It offers Unified UI. > **[Chapter 2. New features and enhancements | Red Hat Product...](https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.5/html/release_notes/new-features#unified_ui)** > > Chapter 2. New features and enhancements | Red Hat Documentation ---
**Author:** ![dandy\_auto](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/dandy_auto/32/5428_2.png) [@dandy\_auto](https://forum.ansible.com/u/dandy_auto)\ **Post date:** [November 18, 2024, 8:46am UTC](https://forum.ansible.com/t/ansible-automation-platform-installation-an-automation-gateway-host-must-exist-in-inventory/10870/3 "2024-11-18T08:46:21Z")
Many thanks @akira6592, it sorted out, it was really necessary `[automationgateway]` instead of `[automationedagateway]`. But now I’m getting another weird error. Now just wondering if it’s really easy to get APP to run on a single node VM? ![Error screenshot 1](https://us1.discourse-cdn.com/ansible/original/2X/a/ab69465f3495a8a0059cf7e92e239c5a811158c9.png) ---
**Author:** ![dandy\_auto](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/dandy_auto/32/5428_2.png) [@dandy\_auto](https://forum.ansible.com/u/dandy_auto)\ **Post date:** [November 18, 2024, 8:46am UTC](https://forum.ansible.com/t/ansible-automation-platform-installation-an-automation-gateway-host-must-exist-in-inventory/10870/4 "2024-11-18T08:46:51Z")
![Error screenshot 2](https://us1.discourse-cdn.com/ansible/original/2X/3/31519bfafa8a33d171072f49edf1e51e42656894.png) ---
**Author:** ![akira6592](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/akira6592/32/222_2.png) [@akira6592](https://forum.ansible.com/u/akira6592)\ **Post date:** [November 19, 2024, 11:21am UTC](https://forum.ansible.com/t/ansible-automation-platform-installation-an-automation-gateway-host-must-exist-in-inventory/10870/5 "2024-11-19T11:21:57Z")
@dandy_auto > [@dandy\_auto](#): > > Now just wondering if it’s really easy to get APP to run on a single node VM? If you want to run single node VM, I recommend the Containerized installtion. > **[Containerized installation | Red Hat Product Documentation](https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.5/html/containerized_installation/index)** > > Containerized installation | Red Hat Documentation ---
**Author:** ![davidlawrancecbe](https://avatars.discourse-cdn.com/v4/letter/d/97f17d/32.png) [@davidlawrancecbe](https://forum.ansible.com/u/davidlawrancecbe)\ **Post date:** [December 16, 2024, 3:41pm UTC](https://forum.ansible.com/t/ansible-automation-platform-installation-an-automation-gateway-host-must-exist-in-inventory/10870/6 "2024-12-16T15:41:44Z")
AAP 2.5 require at least 2 nodes, because automationcontroller and automationhub cannot be in same node… I tried in 3 nodes, it works fine. [automationgateway] node1 [automationcontroller] node2 [automationhub] node3 ---
**Author:** ![JVM-Steel1970](https://avatars.discourse-cdn.com/v4/letter/j/e9c0ed/32.png) [@JVM-Steel1970](https://forum.ansible.com/u/JVM-Steel1970)\ **Post date:** [January 9, 2025, 4:54pm UTC](https://forum.ansible.com/t/ansible-automation-platform-installation-an-automation-gateway-host-must-exist-in-inventory/10870/7 "2025-01-09T16:54:54Z")
> [@davidlawrancecbe](#): > > AAP Hi dandy\_auto, did you ever get your system updated to 2.5 on a single node/server environment? If so, could you share your inventory file? Respectfully ---
**Author:** ![dandy\_auto](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/dandy_auto/32/5428_2.png) [@dandy\_auto](https://forum.ansible.com/u/dandy_auto)\ **Post date:** [January 13, 2025, 11:34am UTC](https://forum.ansible.com/t/ansible-automation-platform-installation-an-automation-gateway-host-must-exist-in-inventory/10870/8 "2025-01-13T11:34:01Z")
No, @davidlawrancecbe recommended the Containerized installation but I didn’t try yet “my trial sub expired”