49 lines
1.7 KiB
Text
49 lines
1.7 KiB
Text
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#!/usr/bin/env nu
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# Derived variables for rev_proxy bundle rendering.
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# Reads the component JSON, outputs extra Tera context vars as JSON.
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def zone_to_cf_secret [zone: string]: nothing -> string {
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$"dns-($zone | str replace --all '.' '-')"
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}
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def resolve_fip_ip [fip_name: string]: nothing -> string {
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let result = (do { ^hcloud floating-ip list -o json } | complete)
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if $result.exit_code != 0 { return "" }
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let matched = ($result.stdout | from json | where name == $fip_name)
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if ($matched | is-empty) { return "" }
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$matched | first | get ip
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}
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def main [component_json: string]: nothing -> nothing {
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let d = ($component_json | from json)
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let fip_name = ($d | get -o fip_name | default "librecloud-fip-rvprxy")
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let sites = ($d | get -o sites | default [])
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let fip_ip = resolve_fip_ip $fip_name
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# Hard prerequisite: the FIP must exist and be assigned an IP before deploy.
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# Without it the LoadBalancer Service gets no loadBalancerIP and DNS update
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# silently points nowhere.
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if ($fip_ip | is-empty) {
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error make {
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msg: $"rev_proxy prerequisite not met: floating IP '($fip_name)' not found or has no IP assigned. Provision it via bootstrap before deploying.",
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}
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}
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# Derive cf_secret_name from the first site's dns_zone, if any.
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let cf_secret_name = if ($sites | is-not-empty) {
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let first_zone = ($sites | first | get -o dns_zone | default "")
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if ($first_zone | is-not-empty) {
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zone_to_cf_secret $first_zone
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} else { "" }
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} else { "" }
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{
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fip_ip: $fip_ip,
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cf_secret_name: $cf_secret_name,
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}
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| to json --raw
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| print
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}
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