Function upsertCname

apps/_scripts/deploy-app.js:222–282

(zoneId, headers, name, target)

}

async function upsertCname(zoneId, headers, name, target) {
    const { ok, json } = await cf(
        `${CF_API}/zones/${zoneId}/dns_records`,
        headers,
        {
            method: "POST",
            body: JSON.stringify({
                type: "CNAME",
                name,
                content: target,
                ttl: 1,
                proxied: false,
            }),
        },
    );

    if (ok) {
        console.log(`DNS CNAME ready: ${name} -> ${target}`);
        return;
    }

    if (hasCode(json, 81053, 81057)) {
        const { ok: listOk, json: list } = await cf(
            `${CF_API}/zones/${zoneId}/dns_records?type=CNAME&name=${name}`,
            headers,
        );
        if (!listOk) {
            throw new Error(`DNS list ${name} failed: ${JSON.stringify(list)}`);
        }

        const record = list.result?.[0];
        if (!record) {
            throw new Error(
                `DNS conflict for ${name}, but no CNAME was found: ${JSON.stringify(json)}`,
            );
        }

        if (record.content === target && record.proxied === false) {
            console.log(`DNS CNAME already correct: ${name}`);
            return;
        }

        const { ok: updateOk, json: updated } = await cf(
            `${CF_API}/zones/${zoneId}/dns_records/${record.id}`,
            headers,
            {
                method: "PATCH",
                body: JSON.stringify({ content: target, proxied: false }),
            },
        );
        if (!updateOk) {
            throw new Error(
                `DNS update ${name} failed: ${JSON.stringify(updated)}`,
            );
        }
        console.log(`DNS CNAME updated: ${name} -> ${target}`);
        return;
    }