Dockerfile.tasks

# =============================================================================
# Dockerfile.tasks — Dedicated image for background tasks (mail sync, cron jobs)
# =============================================================================
# Produces a minimal image that only runs tasksMain.js via bun.
# The main SvelteKit app image (Dockerfile) handles migrations on startup;
# this container assumes the database is already migrated.
# =============================================================================

# ---------------------------------------------------------------------------
# Stage 0: shared base
# ---------------------------------------------------------------------------
FROM oven/bun:1.3-slim AS base

# ---------------------------------------------------------------------------
# Stage 1: install Node.js (needed for prisma generate)
# ---------------------------------------------------------------------------
FROM base AS dual
WORKDIR /temp
RUN apt-get -y update; apt-get -y install curl
# we need to use node and bun for generating prisma files, see https://github.com/prisma/prisma/issues/21241
RUN curl -fsSL https://deb.nodesource.com/setup_24.x | bash
RUN apt-get install -y nodejs

# ---------------------------------------------------------------------------
# Stage 2: build the tasks bundle with tsup
# ---------------------------------------------------------------------------
FROM dual AS builder
WORKDIR /build

COPY package.json bun.lock tsconfig.json svelte.config.js ./
COPY prisma ./prisma
COPY project.inlang ./project.inlang
COPY messages ./messages
COPY src ./src
COPY scripts ./scripts
COPY static ./static

RUN bun install --frozen-lockfile

# Generate path aliases (.svelte-kit/tsconfig.json) that tsconfig.json extends
RUN bunx svelte-kit sync

# Generate Prisma client + query engine for linux
RUN bunx prisma generate

# Generate i18n runtime (imported by conferenceStatus task)
RUN bunx @inlang/paraglide-js compile --project ./project.inlang --outdir ./src/lib/paraglide --strategy url baseLocale

# Bundle tasks into a single file
RUN bun run build:tasks

# ---------------------------------------------------------------------------
# Stage 3: minimal runtime
# ---------------------------------------------------------------------------
FROM base AS runner
WORKDIR /run

# Install only the npm packages that tsup externalizes and tasks import at runtime.
# Keep versions in sync with the main package.json devDependencies.
# Packages:
#   @prisma/client  — DB ORM
#   node-schedule   — cron scheduling
#   @slack/webhook  — error/status notifications
#   zod             — config validation
#   dayjs           — date handling
#   openapi-fetch   — Listmonk API client
RUN bun add \
  @prisma/client@^6.19.0 \
  node-schedule@^2.1.1 \
  @slack/webhook@^7.0.7 \
  zod@^4.1.13 \
  dayjs@^1.11.19 \
  openapi-fetch@^0.13.8

# Copy generated Prisma query engine binary from builder
COPY --from=builder /build/node_modules/.prisma ./node_modules/.prisma

# Copy the bundled tasks entrypoint
COPY --from=builder /build/tasksOut/tasksMain.js ./tasksMain.js

# Create writable directory for conference status historic stats
RUN mkdir /run/ephemeralData && chown -R bun:bun /run/ephemeralData

USER bun
ENV NODE_ENV=production
CMD ["bun", "./tasksMain.js"]