How can I specify a helm override to configure nova PCI alias when there are multiple aliases? I haven't been able to come up with a YAML compliant specification for this. Are there other alternatives to be able to specify this as an override? I assume that a nova Chart change would be required to support this custom one-alias-entry-per-line formatting. Any insights on how to achieve this in helm are welcomed. Background: There is a limitation in the nova.conf specification of PCI alias in that it does not allow multiple PCI aliases as a list. The code says "Supports multiple aliases by repeating the option (not by specifying a list value)". Basically nova currently only supports one-alias-entry-per-line format. Ideally I would specify global pci alias in a format similar to what can be achieved with PCI passthrough_whitelist, which can takes JSON list of dictionaries. This is what I am trying to specify in nova.conf (i.e., for nova-api-osapi and nova-compute): [pci] alias = {dict 1} alias = {dict 2} . . . The following nova configuration format is desired, but not as yet supported by nova: [pci] alias = [{dict 1}, {dict 2}] The following snippet of YAML works for PCI passthrough_whitelist, where the value encoded is a JSON string: conf: nova: overrides: nova_compute: hosts: - conf: nova: pci: passthrough_whitelist: '[{"class_id": "030000", "address": "0000:00:02.0"}]' Jim Gauld