Files
kuber/tests/lib/database.test.ts

398 lines
16 KiB
TypeScript

import { afterEach, describe, expect, mock, spyOn, test } from "bun:test";
import type { ComposeSpecification, Service } from "../../schema/docker.d";
import {
DatabaseReconciliationError,
buildDatabaseUrl,
buildPostgresEnvironment,
getComposePostgresClaims,
getServicePostgresClaim,
isPostgresVolumeEntry,
reconcilePostgresClaim,
reconcilePostgresClaims,
} from "../../lib/database";
import { objectApi } from "../../lib/k8s";
afterEach(() => mock.restore());
describe("managed PostgreSQL claims", () => {
test("supports short and explicit syntax", () => {
expect(
getServicePostgresClaim("app", {
volumes: ["postgresql:app"],
} as Service),
).toEqual({
service: "app",
username: "app",
database: "app",
secretName: "postgres-app",
});
expect(
getServicePostgresClaim("app", {
volumes: ["postgresql:user/database"],
} as Service),
).toEqual({
service: "app",
username: "user",
database: "database",
secretName: "postgres-user",
});
});
test.each([
"postgresql:",
"postgresql:user/",
"postgresql:/database",
"postgresql:user/database/extra",
"postgresql:user:database",
])("rejects malformed declaration %s", (entry) => {
expect(() =>
getServicePostgresClaim("app", { volumes: [entry] } as Service),
).toThrow("Use postgresql:<name> or postgresql:<user>/<database>");
});
test("ignores unrelated entries and rejects duplicate declarations", () => {
expect(
getServicePostgresClaim("app", {
volumes: ["cache:/cache"],
} as Service),
).toBeUndefined();
expect(isPostgresVolumeEntry("cache:/cache")).toBe(false);
expect(() =>
getServicePostgresClaim("app", {
volumes: ["postgresql:one", "postgresql:two"],
} as Service),
).toThrow("declares multiple postgres volumes");
});
test("allows one owner to share a database", () => {
const compose = {
services: {
app: { volumes: ["postgresql:user/database"] },
worker: { volumes: ["postgresql:user/database"] },
},
} as ComposeSpecification;
expect(getComposePostgresClaims(compose)).toHaveLength(2);
});
test("rejects conflicting database owners", () => {
const compose = {
services: {
app: { volumes: ["postgresql:one/shared"] },
worker: { volumes: ["postgresql:two/shared"] },
},
} as ComposeSpecification;
expect(() => getComposePostgresClaims(compose)).toThrow(
"Database shared is claimed by both one and two",
);
});
test("escapes every connection URL component", () => {
expect(
buildDatabaseUrl(
{
service: "app",
username: "user@host",
database: "my/database",
secretName: "postgres-user",
},
{ username: "user@host", password: "p:a/ss?#" },
),
).toBe(
"postgresql://user%40host:p%3Aa%2Fss%3F%[email protected]:5432/my%2Fdatabase",
);
});
test("injects Redis into services with managed PostgreSQL", () => {
expect(
buildPostgresEnvironment(
{
service: "app",
username: "app",
database: "app",
secretName: "postgres-app",
},
{ username: "app", password: "secret" },
),
).toEqual({
DATABASE_URL:
"postgresql://app:[email protected]:5432/app",
REDIS_URL: "redis://redis.database.svc.cluster.local",
});
});
test("reconciles a selected claim before returning credentials", async () => {
const claim = {
service: "app",
username: "app",
database: "app",
secretName: "postgres-app",
};
spyOn(objectApi, "read").mockImplementation(async (resource) => {
if (resource.kind === "Database") throw { code: 404 };
if (resource.kind === "Secret") {
return {
...resource,
data: {
username: Buffer.from("app").toString("base64"),
password: Buffer.from("secret").toString("base64"),
},
} as never;
}
return { ...resource, spec: { managed: { roles: [] } } } as never;
});
const patch = spyOn(objectApi, "patch").mockImplementation(
async (resource) => resource as never,
);
const create = spyOn(objectApi, "create").mockImplementation(async (resource) => resource as never);
expect(await reconcilePostgresClaim("project", claim)).toEqual({
username: "app",
password: "secret",
});
expect(patch.mock.calls.map(([resource]) => resource.kind)).toEqual([
"Secret",
"Cluster",
]);
expect(create.mock.calls.map(([resource]) => resource.kind)).toEqual(["Database"]);
});
test("reports database apply phase and claim without exposing provider credentials", async () => {
const claim = {
service: "app",
username: "app_role",
database: "app_db",
secretName: "postgres-app_role",
};
spyOn(objectApi, "read").mockImplementation(async (resource) => {
if (resource.kind === "Database") throw { code: 404 };
if (resource.kind === "Secret") {
return { ...resource, data: { password: Buffer.from("private-value").toString("base64") } } as never;
}
return { ...resource, spec: { managed: { roles: [] } } } as never;
});
spyOn(objectApi, "patch").mockImplementation(async (resource) => resource as never);
spyOn(objectApi, "create").mockImplementation(async (resource) => {
if (resource.kind === "Database") {
throw Object.assign(new Error("Forbidden: password=private-value"), { code: 403 });
}
return resource as never;
});
let failure: unknown;
try {
await reconcilePostgresClaim("project", claim);
} catch (error) {
failure = error;
}
expect(failure).toBeInstanceOf(DatabaseReconciliationError);
expect((failure as Error).message).toBe(
"Database reconciliation failed during database apply for requested database claim: Forbidden (HTTP 403)",
);
expect((failure as Error).message).not.toContain("private-value");
});
test.each(["read", "patch"])("distinguishes role secret %s failure", async (method) => {
const secretLike = "DB_PASSWORD_private123";
spyOn(objectApi, "read").mockImplementation(async (resource) => {
if (resource.kind === "Database") throw { code: 404 };
if (method === "read") throw new Error(`token=${secretLike}`);
return undefined as never;
});
spyOn(objectApi, "patch").mockImplementation(async () => {
throw new Error(`token=${secretLike}`);
});
let failure: unknown;
try {
await reconcilePostgresClaim("project", {
service: secretLike, username: secretLike, database: secretLike, secretName: `postgres-${secretLike}`,
});
} catch (error) { failure = error; }
expect(failure).toBeInstanceOf(DatabaseReconciliationError);
expect((failure as DatabaseReconciliationError).phase).toBe(`role secret ${method === "read" ? "lookup" : "apply"}`);
expect((failure as Error).message).not.toContain(secretLike);
});
test("uses safe provider status and reason without exposing request bodies or unsafe claim identifiers", () => {
const cause = Object.assign(new Error("request body DATABASE_URL=postgresql://admin:[email protected]/app"), {
statusCode: 422,
body: { reason: "Invalid", code: 422, message: "token=private" },
});
const failure = new DatabaseReconciliationError("managed role update", cause, {
service: "web", database: "postgresql://admin:[email protected]/app", username: "web_role", secretName: "secret",
});
expect(failure.message).toBe(
"Database reconciliation failed during managed role update for requested database claim: Invalid (HTTP 422)",
);
expect(failure.cause).toBe(cause);
expect(failure.message).not.toContain("private");
});
test("rejects an unrecognized phase containing a syntactically valid secret-like name", () => {
const failure = new DatabaseReconciliationError("DB_PASSWORD_private123", new Error("private"));
expect(failure.phase).toBe("operation execution");
expect(failure.message).not.toContain("DB_PASSWORD_private123");
});
test("identifies failure while preparing malformed managed roles before a Cluster write", async () => {
spyOn(objectApi, "read").mockImplementation(async (resource) => resource.kind === "Secret"
? { ...resource, data: { password: Buffer.from("private").toString("base64") } } as never
: resource.kind === "Database" ? Promise.reject({ code: 404 }) : { ...resource, spec: { managed: { roles: {} } } } as never);
const patch = spyOn(objectApi, "patch").mockImplementation(async (resource) => resource as never);
let failure: unknown;
try {
await reconcilePostgresClaim("project", {
service: "DB_PASSWORD_private123", username: "role", database: "db", secretName: "postgres-role",
});
} catch (error) { failure = error; }
expect(failure).toBeInstanceOf(DatabaseReconciliationError);
expect((failure as DatabaseReconciliationError).phase).toBe("managed role preparation");
expect((failure as Error).message).not.toContain("DB_PASSWORD_private123");
expect(patch.mock.calls.map(([resource]) => resource.kind)).toEqual(["Secret"]);
});
test("reports malformed claims as claim discovery failures without echoing compose input", async () => {
await expect(reconcilePostgresClaims("project", {
services: { web: { volumes: ["postgresql:user:password=private"] } },
} as ComposeSpecification)).rejects.toThrow(
"Database reconciliation failed during claim discovery: Check PostgreSQL claim declarations",
);
});
test("reconciles a CNPG cluster returned with managed fields without sending them back", async () => {
const claim = {
service: "app",
username: "app",
database: "app",
secretName: "postgres-app",
};
spyOn(objectApi, "read").mockImplementation(async (resource) => {
if (resource.kind === "Database") throw { code: 404 };
if (resource.kind === "Secret") {
return {
...resource,
data: {
username: Buffer.from("app").toString("base64"),
password: Buffer.from("secret").toString("base64"),
},
} as never;
}
return {
...resource,
metadata: {
...resource.metadata,
managedFields: [{ manager: "cloudnative-pg" }],
resourceVersion: "42",
uid: "cluster-uid",
creationTimestamp: "2026-09-08T00:00:00Z",
generation: 3,
},
spec: { managed: { roles: [{ name: "existing" }] } },
status: { phase: "Ready" },
} as never;
});
const patch = spyOn(objectApi, "patch").mockImplementation(
async (resource) => {
if (resource.metadata?.managedFields)
throw new Error("metadata.managedFields must be nil");
return resource as never;
},
);
spyOn(objectApi, "create").mockImplementation(async (resource) => resource as never);
await reconcilePostgresClaim("project", claim);
const cluster = patch.mock.calls.find(
([resource]) => resource.kind === "Cluster",
)?.[0];
expect(cluster).toMatchObject({
metadata: { name: "postgres", namespace: "database" },
spec: {
managed: { roles: [{ name: "existing" }, { name: "app" }] },
},
});
expect(cluster?.metadata).not.toHaveProperty("managedFields");
expect(cluster?.metadata).not.toHaveProperty("resourceVersion");
expect(cluster).not.toHaveProperty("status");
});
test("two projects reuse a foreign database without applying its metadata", async () => {
const claim = { service: "web", username: "sastify", database: "sastify-store", secretName: "postgres-sastify" };
const live = {
apiVersion: "postgresql.cnpg.io/v1", kind: "Database",
metadata: { name: claim.database, namespace: "database", labels: {
"kuber.dev/project": "sastify-api", "kuber.dev/workspace-uid": "foreign-uid",
} },
spec: { owner: claim.username, cluster: { name: "postgres" } },
};
const original = structuredClone(live);
spyOn(objectApi, "read").mockImplementation(async (resource) => resource.kind === "Database"
? live as never
: resource.kind === "Secret"
? { ...resource, data: { password: Buffer.from("shared-password").toString("base64") } } as never
: { ...resource, spec: { managed: { roles: [] } } } as never);
const patch = spyOn(objectApi, "patch").mockImplementation(async (resource) => resource as never);
const create = spyOn(objectApi, "create").mockImplementation(async (resource) => resource as never);
const compose = { services: { web: { volumes: ["postgresql:sastify/sastify-store"] } } } as ComposeSpecification;
for (const project of ["sastify-api", "another-project"]) {
const env = await reconcilePostgresClaims(project, compose);
expect(env.web?.DATABASE_URL).toBe("postgresql://sastify:[email protected]:5432/sastify-store");
}
expect(live).toEqual(original);
expect(patch.mock.calls.map(([resource]) => resource.kind)).toEqual(["Secret", "Cluster", "Secret", "Cluster"]);
expect(create).not.toHaveBeenCalled();
});
test("validates all databases in a compose file before writing the first role", async () => {
const read = spyOn(objectApi, "read").mockImplementation(async (resource) => {
if (resource.kind === "Database" && resource.metadata?.name === "first") throw { code: 404 };
if (resource.kind === "Database") return { ...resource, spec: {
owner: "another-role", cluster: { name: "postgres" },
} } as never;
throw new Error("Role lookup must not run");
});
const patch = spyOn(objectApi, "patch").mockImplementation(async (resource) => resource as never);
const create = spyOn(objectApi, "create").mockImplementation(async (resource) => resource as never);
await expect(reconcilePostgresClaims("project", { services: {
first: { volumes: ["postgresql:first"] },
second: { volumes: ["postgresql:second"] },
} } as ComposeSpecification)).rejects.toMatchObject({ phase: "database ownership" });
expect(read.mock.calls.map(([resource]) => resource.kind)).toEqual(["Database", "Database"]);
expect(patch).not.toHaveBeenCalled();
expect(create).not.toHaveBeenCalled();
});
test.each([
["wrong role", "other", "postgres"],
["wrong cluster", "sastify", "other"],
])("rejects existing database with %s before any writes", async (_case, owner, cluster) => {
const claim = { service: "web", username: "sastify", database: "sastify-store", secretName: "postgres-sastify" };
spyOn(objectApi, "read").mockImplementation(async (resource) => resource.kind === "Database"
? { ...resource, spec: { owner, cluster: { name: cluster } } } as never
: undefined as never);
const patch = spyOn(objectApi, "patch").mockImplementation(async (resource) => resource as never);
const create = spyOn(objectApi, "create").mockImplementation(async (resource) => resource as never);
await expect(reconcilePostgresClaim("project", claim)).rejects.toMatchObject({ phase: "database ownership" });
expect(patch).not.toHaveBeenCalled();
expect(create).not.toHaveBeenCalled();
});
test("creates missing databases only once and fails closed on create races", async () => {
spyOn(objectApi, "read").mockImplementation(async (resource) => {
if (resource.kind === "Database") throw { code: 404 };
return { ...resource, spec: { managed: { roles: [] } } } as never;
});
spyOn(objectApi, "patch").mockImplementation(async (resource) => resource as never);
const create = spyOn(objectApi, "create").mockImplementation(async () => {
throw Object.assign(new Error("Conflict"), { code: 409 });
});
await expect(reconcilePostgresClaims("project", { services: {
web: { volumes: ["postgresql:sastify/sastify-store"] },
worker: { volumes: ["postgresql:sastify/sastify-store"] },
} } as ComposeSpecification)).rejects.toMatchObject({ phase: "database apply" });
expect(create).toHaveBeenCalledTimes(1);
expect(create.mock.calls[0]?.[0]).toMatchObject({
metadata: { name: "sastify-store", labels: { "kuber.dev/project": "project" } },
spec: { owner: "sastify", cluster: { name: "postgres" } },
});
});
});