Setting array values in parameters (eg. ip_addresses, dns_names)

[munnerz]

After looking through the codebase for vault-sidekick, it appears values that are passed in the cn are set as the JSON request body to Vault. With the current way this is done (here https://github.com/UKHomeOffice/vault-sidekick/blob/master/vault_resources.go#L135 and https://github.com/UKHomeOffice/vault-sidekick/blob/master/vault.go#L322), I'm unsure if it's possible to pass any values that should be arrays?

Specifically I'm using the PKI backend and want to add a list of IP addresses and DNS names that should be present on the certificate.

Have you got any example of how to do this with vault-sidekick? Or otherwise, how you'd like to see this implemented? Comma-separated may work, but it'd require specifically hard-coding data structures that vault accepts into vault-sidekick (so that we could detect if something should or shouldn't be a list). Alternatively we could use a syntax closer to JSON, eg. ip_addresses=['ip-1'] etc..