checkpoint 1

Dockerfile

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+# Build stage
+FROM golang:1.20-alpine AS builder
+
+WORKDIR /app
+
+# Install dependencies
+RUN apk add --no-cache gcc musl-dev git
+
+# Enable Go Modules
+ENV GO111MODULE=on
+
+# Copy module files first for efficient caching
+COPY go.mod go.sum ./
+
+# Download dependencies
+RUN go mod download
+
+# Copy source code
+COPY . .
+
+# Build application
+RUN CGO_ENABLED=1 GOOS=linux go build -o garminsync .
+
+# Runtime stage
+FROM alpine:3.18
+
+# Install runtime dependencies
+RUN apk add --no-cache ca-certificates tzdata
+
+# Create app directory
+WORKDIR /app
+
+# Copy binary from builder
+COPY --from=builder /app/garminsync /app/garminsync
+
+# Copy templates
+COPY internal/web/templates ./internal/web/templates
+
+# Set timezone and environment
+ENV TZ=UTC \
+    DATA_DIR=/data \
+    DB_PATH=/data/garmin.db \
+    TEMPLATE_DIR=/app/internal/web/templates
+
+# Create data volume and set permissions
+RUN mkdir /data && chown nobody:nobody /data
+VOLUME /data
+
+# Run as non-root user
+USER nobody
+
+# Health check endpoint
+HEALTHCHECK --interval=30s --timeout=30s --retries=3 \
+    CMD wget --quiet --tries=1 --spider http://localhost:8888/health || exit 1
+
+# Expose web port
+EXPOSE 8888
+
+# Start the application
+ENTRYPOINT ["/app/garminsync"]