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feat(tmpl): {{domain_name}} placeholder — materialize on diff/apply, parameterize on snapshot

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Adds internal/tmpl with Materialize (template placeholder -> zone name) and
Parameterize (zone name -> placeholder, the inverse used by the
template-from-zone snapshot). service.resolve now materializes the template
against DomainRef.ZoneName before diffing, so one template can be reused
across domains. LoadDomainFull (source query + hand-edited sqlc output, since
sqlc is not installed) now also selects zone_name to populate it.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwxdSt4reTm7Dj1oxRvpP3
This commit is contained in:
Vassiliy Yegorov
2026-07-05 13:41:18 +07:00
parent 135917216c
commit df895d8850
9 changed files with 158 additions and 11 deletions
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internal/tmpl/tmpl_test.go
+45
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package tmpl_test
import (
"testing"
"github.com/vasyakrg/dns-autoresolver/internal/model"
"github.com/vasyakrg/dns-autoresolver/internal/store/dto"
"github.com/vasyakrg/dns-autoresolver/internal/tmpl"
)
func TestMaterializeReplacesInNameAndValues(t *testing.T) {
doc := dto.TemplateDoc{Records: []dto.RecordDTO{
{Type: "TXT", Name: "_dmarc.{{domain_name}}.", TTL: 600, Values: []string{"v=DMARC1; p=quarantine"}},
{Type: "MX", Name: "{{domain_name}}.", TTL: 600, Values: []string{"0 pmg2-mail.{{domain_name}}."}},
{Type: "TXT", Name: "{{domain_name}}.", TTL: 600, Values: []string{"v=spf1 a:mail.{{domain_name}} ~all"}},
}}
recs := tmpl.Materialize(doc, "reconops.ru.") // trailing dot stripped
if recs[0].Name != "_dmarc.reconops.ru." {
t.Fatalf("name: %q", recs[0].Name)
}
if recs[1].Values[0] != "0 pmg2-mail.reconops.ru." {
t.Fatalf("mx value: %q", recs[1].Values[0])
}
if recs[2].Values[0] != "v=spf1 a:mail.reconops.ru ~all" {
t.Fatalf("spf value: %q", recs[2].Values[0])
}
}
func TestParameterizeIsInverseForZoneOccurrences(t *testing.T) {
recs := []model.Record{
{Type: "TXT", Name: "_dmarc.reconops.ru.", TTL: 600, Values: []string{"v=DMARC1"}},
{Type: "TXT", Name: "reconops.ru.", TTL: 600, Values: []string{"v=spf1 a:mail.reconops.ru ~all"}},
{Type: "CNAME", Name: "mail.reconops.ru.", TTL: 600, Values: []string{"amail.amega.kz."}}, // external host untouched
}
doc := tmpl.Parameterize(recs, "reconops.ru.")
if doc.Records[0].Name != "_dmarc.{{domain_name}}." {
t.Fatalf("name: %q", doc.Records[0].Name)
}
if doc.Records[1].Values[0] != "v=spf1 a:mail.{{domain_name}} ~all" {
t.Fatalf("spf: %q", doc.Records[1].Values[0])
}
if doc.Records[2].Values[0] != "amail.amega.kz." {
t.Fatalf("external cname value must be untouched: %q", doc.Records[2].Values[0])
}
}