Multi-stage build on node:22-alpine, standalone output, non-root user, healthcheck on /api/health, and migrations applied by the entrypoint before the first request. A failed migration stops the container rather than serving an inconsistent database. Getting the Prisma CLI into the runtime image took three attempts and the reasoning is recorded in the Dockerfile. Copying it out of the build stage leaves its transitive dependencies behind; patching them in one at a time is a losing game. It now gets its own stage and its own tree, with the schema and prisma.config.ts beside it, and the entrypoint runs from there so every import resolves locally. The version is read from our own package.json so it cannot drift from the generated client. Two things had to change to build without a database, which a build container rightly does not have. prisma.config.ts no longer reads the URL through prisma's env() helper, which throws on a missing variable even for `generate`. And lib/db.ts creates the client on first use rather than on import: Next imports every route module while collecting page data, so a module that threw on import failed the build with an error naming whichever route was analysed first, which says nothing useful. The failure now lands on the first query, where it belongs. Verified by running the image against a real database: migrations applied, cron scheduled in Europe/Zurich, a device paired, and the panel image served as a genuine 1-bit 800x480 BMP — so satori, resvg and the vendored fonts all work on musl. The image hash came out identical to the one produced on the glibc host, which is the reproducibility the vendored fonts were for. The production overlay publishes through an existing Traefik, drops the host port, mounts the filesystem read-only, and adds a nightly dump kept for a fortnight. README and DEPLOY are in French and cover what actually bites: the panel receives nothing and only updates when it wakes; the issuer must match to the character; the captive portal URL takes no trailing slash; a rollback across a migration needs the dump, because Prisma does not undo one. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012cSY9pVhZmJUKNN7wf1Myd
55 lines
1.8 KiB
TypeScript
55 lines
1.8 KiB
TypeScript
import { PrismaPg } from '@prisma/adapter-pg';
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import { PrismaClient } from '@/lib/generated/prisma/client';
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/**
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* The Prisma client, created on first use rather than on import.
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*
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* Next imports every route module while collecting page data at build time, in
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* a container that has no database and no DATABASE_URL. A module that threw on
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* import would fail the build with an error pointing at whichever route
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* happened to be analysed first, which says nothing useful. Creating the
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* client lazily moves that failure to the first actual query, where the
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* message is about the database because the problem is.
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*/
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const globalForPrisma = globalThis as unknown as { prisma?: PrismaClient };
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function client(): PrismaClient {
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if (globalForPrisma.prisma) {
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return globalForPrisma.prisma;
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}
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const connectionString = process.env.DATABASE_URL;
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if (!connectionString) {
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throw new Error(
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'DATABASE_URL n’est pas défini : impossible de joindre la base de données.',
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);
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}
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const created = new PrismaClient({ adapter: new PrismaPg({ connectionString }) });
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// Next hot-reloads modules in development; without this the dev server would
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// open a new pool on every edit until Postgres refuses connections.
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if (process.env.NODE_ENV !== 'production') {
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globalForPrisma.prisma = created;
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}
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return created;
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}
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let singleton: PrismaClient | undefined;
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function instance(): PrismaClient {
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singleton ??= client();
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return singleton;
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}
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export const prisma: PrismaClient = new Proxy({} as PrismaClient, {
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get(_target, property) {
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const target = instance();
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const value = Reflect.get(target, property) as unknown;
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// Model delegates and methods both need their original `this`.
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return typeof value === 'function' ? value.bind(target) : value;
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},
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});
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