Dockerfile

FROM golang:1.25-alpine AS builder
RUN apk add --no-cache git ca-certificates tzdata
WORKDIR /build
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
    -ldflags="-s -w -extldflags '-static'" \
    -a -installsuffix cgo \
    -o bin/server \
    ./cmd/server

FROM alpine:3.19
RUN apk add --no-cache ca-certificates tzdata
RUN addgroup -g 1000 -S appgroup && \
    adduser -u 1000 -S appuser -G appgroup
WORKDIR /app
COPY --from=builder /build/bin/server /app/server
COPY --from=builder /build/migrations /app/migrations
RUN chown -R appuser:appgroup /app
USER appuser
EXPOSE 8080
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:8080/health || exit 1
ENTRYPOINT ["/app/server"]