rsp2k/libdns-vultr
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  • v2.0.5 0a771772e3

    Handle duplicate DNS records with upsert semantics

    rsp2k released this 2026-03-08 22:35:06 +00:00 | -1 commits to master since this release

    When Vultr's API returns "Duplicate records are not allowed" on
    DomainRecord.Create, find the existing record by name+type and update
    it instead of failing. This prevents ACME certificate issuance from
    breaking when stale _acme-challenge TXT records survive a Caddy
    restart.

    Also fix record lookup in removeDNSRecord and updateDNSRecord to
    match by name+type+data instead of name-only or data-only, avoiding
    deletion of the wrong record when multiple records share the same
    name (common with _acme-challenge across LE and ZeroSSL issuers).

    Use comma-ok type assertions throughout to prevent panics if the
    record type invariant is ever broken. Extract the Vultr error
    string to a named constant. Document the mutex contract.

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