I have the similar problem. Attempt to deploy seed-hyperviosor and seed external. the same part of the deployment failed I use ubuntu 22.04.3, eth0->ipmi,eth1->admin Do you have any ideas, any help? kayobe seed host configure TASK [Update the IP allocations fact with IP allocation requests] ********************************************************************************************************************************************************************************************************* Monday 29 January 2024 08:40:45 +0000 (0:00:00.079) 0:00:00.114 ******** ok: [seed] => (item=admin) ok: [seed] => (item=ipmi) TASK [ip-allocation : Ensure IP addresses are allocated] ****************************************************************************************************************************************************************************************************************** Monday 29 January 2024 08:40:45 +0000 (0:00:00.128) 0:00:00.242 ******** ok: [seed -> localhost] => (item={'net_name': 'admin', 'cidr': '192.168.10.0/24', 'allocation_pool_start': None, 'allocation_pool_end': None}) ok: [seed -> localhost] => (item={'net_name': 'ipmi', 'cidr': '192.168.20.0/24', 'allocation_pool_start': None, 'allocation_pool_end': None}) PLAY RECAP **************************************************************************************************************************************************************************************************************************************************************** seed : ok=3 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 TASK [Validate network interface configuration] *************************************************************************************************************************************************************************************************************************** Monday 29 January 2024 08:41:11 +0000 (0:00:01.063) 0:00:24.586 ******** skipping: [seed] => (item=admin) skipping: [seed] => (item=ipmi) skipping: [seed] TASK [Validate bridge interface configuration] **************************************************************************************************************************************************************************************************************************** Monday 29 January 2024 08:41:11 +0000 (0:00:00.067) 0:00:24.653 ******** skipping: [seed] TASK [Validate bond interface configuration] ****************************************************************************************************************************************************************************************************************************** Monday 29 January 2024 08:41:12 +0000 (0:00:00.037) 0:00:24.691 ******** skipping: [seed] TASK [Configure the network] ********************************************************************************************************************************************************************************************************************************************** Monday 29 January 2024 08:41:12 +0000 (0:00:00.055) 0:00:24.747 ******** TASK [ahuffman.resolv : Configure resolv.conf] **************************************************************************************************************************************************************************************************************************** Monday 29 January 2024 08:41:12 +0000 (0:00:00.084) 0:00:24.831 ******** ok: [seed] TASK [network-debian : Ensure IP routing tables are defined for iproute2] ************************************************************************************************************************************************************************************************* Monday 29 January 2024 08:41:12 +0000 (0:00:00.607) 0:00:25.439 ******** ok: [seed] TASK [network-debian : Remove netplan.io packages] ************************************************************************************************************************************************************************************************************************ Monday 29 January 2024 08:41:13 +0000 (0:00:00.375) 0:00:25.815 ******** ok: [seed] TASK [network-debian : meta] ********************************************************************************************************************************************************************************************************************************************** Monday 29 January 2024 08:41:13 +0000 (0:00:00.618) 0:00:26.434 ******** TASK [stackhpc.systemd_networkd : Find unexpected systemd-networkd configuration files] *********************************************************************************************************************************************************************************** Monday 29 January 2024 08:41:13 +0000 (0:00:00.015) 0:00:26.449 ******** ok: [seed] TASK [stackhpc.systemd_networkd : Remove unexpected systemd-networkd configuration files] ********************************************************************************************************************************************************************************* Monday 29 January 2024 08:41:14 +0000 (0:00:00.385) 0:00:26.835 ******** fatal: [seed]: FAILED! => msg: 'An unhandled exception occurred while templating ''["{{ systemd_networkd_link.keys() | map(''regex_replace'', ''^(.*)$'', ''\\1.link'') | list }}", "{{ systemd_networkd_netdev.keys() | map(''regex_replace'', ''^(.*)$'', ''\\1.netdev'') | list }}", "{{ systemd_networkd_network.keys() | map(''regex_replace'', ''^(.*)$'', ''\\1.network'') | list }}"]''. Error was a , original message: An unhandled exception occurred while templating ''{{ network_interfaces | networkd_netdevs }}''. Error was a , original message: Unexpected templating type error occurred on ({{ network_interfaces | networkd_netdevs }}): can only concatenate list (not "AnsibleUnicode") to list. can only concatenate list (not "AnsibleUnicode") to list' PLAY RECAP **************************************************************************************************************************************************************************************************************************************************************** seed : ok=31 changed=0 unreachable=0 failed=1 skipped=37 rescued=0 ignored=0