Add multi-stage Dockerfile for VaporDrop build

1 files changed, 60 insertions, 0 deletions

diff --git a/Dockerfile b/Dockerfile
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+# VaporDrop - Multi-stage Docker Build
+# Stack: Go + Tor + X25519 + XChaCha20 + BLAKE3
+
+# =============================================================================
+# STAGE 1: Build
+# =============================================================================
+FROM golang:1.21-alpine AS builder
+
+RUN apk add --no-cache git ca-certificates tzdata
+
+WORKDIR /build
+
+# Copy source files
+COPY go.mod ./
+COPY main.go ./
+
+# Download dependencies and build with security flags
+RUN go mod tidy && \
+    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
+    go build \
+    -trimpath \
+    -ldflags="-w -s -buildid=" \
+    -buildvcs=false \
+    -o vapordrop \
+    main.go
+
+# =============================================================================
+# STAGE 2: Runtime
+# =============================================================================
+FROM alpine:3.19
+
+# Install Tor and minimal deps
+RUN apk add --no-cache \
+    tor \
+    ca-certificates \
+    tzdata \
+    && rm -rf /var/cache/apk/* \
+    && mkdir -p /app/static /app/file_storage /app/.tor
+
+# Create non-root user
+RUN addgroup -g 1000 vapor && \
+    adduser -u 1000 -G vapor -h /app -D vapor
+
+WORKDIR /app
+
+# Copy binary from builder
+COPY --from=builder /build/vapordrop /app/vapordrop
+
+# Copy static files
+COPY static/ /app/static/
+
+# Set ownership
+RUN chown -R vapor:vapor /app
+
+# Switch to non-root
+USER vapor
+
+EXPOSE 80
+
+ENTRYPOINT ["/app/vapordrop"]