53 lines
1.2 KiB
Docker
53 lines
1.2 KiB
Docker
# Build stage
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FROM golang:1.25.3-alpine AS builder
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# Install build dependencies
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RUN apk add --no-cache git ca-certificates tzdata
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# Set working directory
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WORKDIR /app
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# Copy go mod files
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COPY go.mod go.sum ./
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# Download dependencies
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RUN go mod download
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# Copy source code
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COPY . .
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# Build the application
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# CGO_ENABLED=0 for static binary, GOOS=linux for Linux compatibility
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RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags="-w -s" -o server ./cmd/server/main.go
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# Runtime stage
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FROM alpine:latest
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# Install CA certificates for HTTPS requests (OAuth)
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RUN apk --no-cache add ca-certificates tzdata
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# Create non-root user
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RUN addgroup -g 1000 appuser && \
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adduser -D -u 1000 -G appuser appuser
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WORKDIR /app
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# Copy binary from builder
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COPY --from=builder /app/server .
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# Change ownership to non-root user
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RUN chown -R appuser:appuser /app
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# Switch to non-root user
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USER appuser
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# Expose port (Fly.io uses PORT env variable)
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EXPOSE 8080
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# Health check
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HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
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CMD wget --no-verbose --tries=1 --spider http://localhost:8080/health || exit 1
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# Run the application
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CMD ["./server"]
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