Dockerfile

# syntax = docker/dockerfile:1

# Adjust BUN_VERSION as desired
FROM oven/bun:slim AS base

LABEL fly_launch_runtime="Next.js"

# Next.js app lives here
WORKDIR /app

# Set production environment
ENV NODE_ENV="production"


# Install system dependencies
FROM base AS deps-system

RUN apt-get update -qq && \
    apt-get install --no-install-recommends -y build-essential pkg-config python-is-python3 && \
    rm -rf /var/lib/apt/lists/*


# Install node modules
FROM deps-system AS deps

COPY bun.lock package.json ./
RUN --mount=type=cache,target=/root/.bun/install/cache \
    bun install --frozen-lockfile


# Copy pongo config (separate layer for config changes)
FROM deps AS pongo-config

COPY pongo ./pongo


# Build application
FROM pongo-config AS build

COPY . .
RUN --mount=type=cache,target=/root/.bun/install/cache \
    --mount=type=cache,target=/app/.next/cache \
    bun next build --experimental-build-mode compile


# Production dependencies only
FROM deps-system AS production-deps

COPY bun.lock package.json ./
RUN --mount=type=cache,target=/root/.bun/install/cache \
    bun install --frozen-lockfile


# Final stage for app image
FROM base

# Copy production dependencies
COPY --from=production-deps /app/node_modules ./node_modules

# Copy everything from build
COPY --from=build /app ./

# The ENTRYPOINT instruction sets the executable that will always run when the container starts.
# The CMD instruction provides default arguments to the ENTRYPOINT, or supplies a default command if ENTRYPOINT is not set.
# If both are used, CMD's values are passed as arguments to ENTRYPOINT.
# In this example, ENTRYPOINT runs the entrypoint script, and CMD runs the app server.

ENTRYPOINT [ "/app/docker-entrypoint.js" ]

EXPOSE 3000

CMD [ "bun", "run", "start" ]