Dockerfile

# Build stage
FROM golang:1.24-alpine AS builder

WORKDIR /app

# Install build dependencies
RUN apk add --no-cache git

# Copy go mod files
COPY go.mod go.sum ./
RUN go mod download

# Copy source code
COPY . .

# Build the application
RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o memory ./cmd/memory

# Runtime stage
FROM alpine:3.19

WORKDIR /app

# Install runtime dependencies
RUN apk add --no-cache ca-certificates tzdata

# Create non-root user
RUN addgroup -g 1000 app && \
    adduser -u 1000 -G app -D app && \
    mkdir -p /app/logs && \
    chown -R app:app /app

USER app

# Copy binary and config
COPY --from=builder /app/memory .
COPY --from=builder /app/configs/config.toml.example ./configs/config.toml

# Expose port
EXPOSE 8080

# Health check
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:8080/health || exit 1

# Run
CMD ["./memory", "-config", "configs/config.toml"]