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# Sub2API Multi-Stage Dockerfile
# =============================================================================
# Stage 1: Build frontend
# Stage 2: Build Go backend with embedded frontend
# Stage 3: Final minimal image
# =============================================================================
ARG NODE_IMAGE=node:24-alpine
ARG GOLANG_IMAGE=golang:1.26.1-alpine
ARG PYTHON_IMAGE=python:3.12-alpine3.20
ARG GOPROXY=https://goproxy.cn,direct
ARG GOSUMDB=sum.golang.google.cn
# -----------------------------------------------------------------------------
# Stage 1: Frontend Builder
# -----------------------------------------------------------------------------
FROM ${NODE_IMAGE} AS frontend-builder
WORKDIR /app/frontend
# Install pnpm
RUN corepack enable && corepack prepare pnpm@latest --activate
# Install dependencies first (better caching)
COPY frontend/package.json frontend/pnpm-lock.yaml ./
RUN pnpm install --frozen-lockfile
# Copy frontend source and build
COPY frontend/ ./
RUN pnpm run build
# -----------------------------------------------------------------------------
# Stage 2: Backend Builder
# -----------------------------------------------------------------------------
FROM ${GOLANG_IMAGE} AS backend-builder
# Build arguments for version info (set by CI)
ARG VERSION=
ARG COMMIT=docker
ARG DATE
ARG GOPROXY
ARG GOSUMDB
ENV GOPROXY=${GOPROXY}
ENV GOSUMDB=${GOSUMDB}
# Install build dependencies
RUN apk add --no-cache git ca-certificates tzdata
WORKDIR /app/backend
# Copy go mod files first (better caching)
COPY backend/go.mod backend/go.sum ./
RUN go mod download
# Copy backend source first
COPY backend/ ./
# Copy frontend dist from previous stage (must be after backend copy to avoid being overwritten)
COPY --from=frontend-builder /app/backend/internal/web/dist ./internal/web/dist
# Build the binary (BuildType=release for CI builds, embed frontend)
# Version precedence: build arg VERSION > cmd/server/VERSION
RUN VERSION_VALUE="${VERSION}" && \
if [ -z "${VERSION_VALUE}" ]; then VERSION_VALUE="$(tr -d '\r\n' < ./cmd/server/VERSION)"; fi && \
DATE_VALUE="${DATE:-$(date -u +%Y-%m-%dT%H:%M:%SZ)}" && \
CGO_ENABLED=0 GOOS=linux go build \
-tags embed \
-ldflags="-s -w -X main.Version=${VERSION_VALUE} -X main.Commit=${COMMIT} -X main.Date=${DATE_VALUE} -X main.BuildType=release" \
-trimpath \
-o /app/sub2api \
./cmd/server
# -----------------------------------------------------------------------------
# Stage 3: Final Runtime Image
# -----------------------------------------------------------------------------
FROM ${PYTHON_IMAGE}
# Labels
LABEL maintainer="Wei-Shaw <github.com/Wei-Shaw>"
LABEL description="Sub2API - AI API Gateway Platform"
LABEL org.opencontainers.image.source="https://github.com/Wei-Shaw/sub2api"
ENV PATH="/usr/lib/postgresql16/bin:${PATH}" \
PIP_DISABLE_PIP_VERSION_CHECK=1 \
PYTHONDONTWRITEBYTECODE=1
# Install runtime dependencies
RUN apk add --no-cache \
ca-certificates \
tzdata \
curl \
su-exec \
bash \
redis \
postgresql16 \
postgresql16-client \
wget \
&& rm -rf /var/cache/apk/*
# Create non-root user
RUN addgroup -g 1000 sub2api && \
adduser -u 1000 -G sub2api -s /bin/sh -D sub2api
# Set working directory
WORKDIR /app
# Copy binary/resources with ownership to avoid extra full-layer chown copy
COPY --from=backend-builder --chown=sub2api:sub2api /app/sub2api /app/sub2api
COPY --from=backend-builder --chown=sub2api:sub2api /app/backend/resources /app/resources
# Install Hugging Face backup helper dependencies
COPY deploy/huggingface/requirements.txt /tmp/hf-requirements.txt
RUN pip install --no-cache-dir -r /tmp/hf-requirements.txt && rm -f /tmp/hf-requirements.txt
# Copy deployment helpers
COPY deploy/huggingface/ /app/deploy/huggingface/
# Create data directory
RUN mkdir -p /app/data /data && \
chmod +x /app/deploy/huggingface/start.sh /app/deploy/huggingface/backup.sh && \
chown -R sub2api:sub2api /app /data
# Expose port (can be overridden by SERVER_PORT env var)
EXPOSE 8080
# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
CMD wget -q -T 5 -O /dev/null http://localhost:${SERVER_PORT:-8080}/health || exit 1
# Run the Hugging Face startup orchestrator
ENTRYPOINT ["/app/deploy/huggingface/start.sh"]
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