Files
mesh-catalog/modules/minio/provisioner/handlers.ts
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79 lines
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TypeScript

// The s3-bucket provisioner's create, remove and holds, with what they touch handed in, so a unit test drives
// them with a fake admin client (the provisioner's index.ts runs them against minio).
import type { Provision } from "@novox/mesh-sdk/provisioner";
import { ensureLinkKey, revokeLinkKey, type LinkAdmin } from "../links.js";
export interface Admin extends LinkAdmin {
bucketExists(bucket: string): Promise<boolean>;
createBucket(bucket: string): Promise<void>;
canReachAs(bucket: string, accessKey: string, secretKey: string): Promise<boolean>;
readonly baseUrl: string;
}
export interface Deps {
minio: Admin;
linksDir: string;
announce(type: string, body: unknown): Promise<void>;
}
export function handlers({ minio, linksDir, announce }: Deps) {
return {
async create(p: Provision): Promise<void> {
const bucket = bucketNamed(p.derived);
const accessKeyId = p.as;
if (!(await minio.bucketExists(bucket))) await minio.createBucket(bucket);
// Re-mint the scoped key idempotently: drop any prior one under this id, then add it back with
// the mesh's secret.
try { await minio.removeAccessKey(accessKeyId); } catch { /* none yet — first provision */ }
await minio.createAccessKey(bucket, accessKeyId, p.password);
await ensureLinkKey(minio, linksDir, bucket);
await announce("bucket.created", {
bucket,
consumer: p.consumer ?? "",
accessKey: accessKeyId,
endpoint: minio.baseUrl,
});
},
async remove(p: { as: string; derived: Readonly<Record<string, unknown>> }): Promise<void> {
const bucket = bucketNamed(p.derived);
// Revoking the key is what cuts the consumer's access, and the bucket is kept, empty or not
// (novox/hq issue 241: a withdrawal never destroys a consumer's data — on 2026-10-04 a misread grants file withdrew every consumer at once). A bucket is removed by a person, never by this loop.
try { await minio.removeAccessKey(p.as); } catch { /* already gone */ }
await revokeLinkKey(minio, linksDir, bucket);
console.error(`[minio] ${p.as} withdrawn: access key and link key revoked, bucket ${bucket} kept`);
await announce("bucket.removed", { bucket, accessKey: p.as });
},
// Asked every minute by the harness: whether the backend still holds this consumer exactly as
// the mesh gave it, so a login lost behind the provisioner's back is made again (novox/hq issue 120).
async holds(p: Provision): Promise<boolean> {
return minio.canReachAs(bucketNamed(p.derived), p.as, p.password);
},
};
}
/** The bucket the mesh derived for this consumer.
*
* Absent means this module is running against a control plane that does not fill `${consumer:…}`
* yet, or a manifest whose `serves` block lost the line. Both are the same mistake from here —
* nobody said which bucket — and both are said rather than guessed: a provisioner that fell back
* to deriving one would restore the second rule and hide the fault behind a bucket that happens
* to be right. */
function bucketNamed(derived: Readonly<Record<string, unknown>>): string {
const bucket = derived.bucket;
if (typeof bucket !== "string" || bucket === "") {
throw new Error(
"the mesh did not say which bucket this consumer gets: minio's manifest must serve " +
"`bucket` under s3-bucket (novox/hq ADR 0202)",
);
}
return bucket;
}