Dockerfile · rin/polar

Dockerfile · 24 lines · 677 B

1	# Stage 1: Build static Go binary
2	FROM golang:1.23-alpine AS builder
3	WORKDIR /src
4	COPY go.mod go.sum ./
5	RUN go mod download
6	COPY . .
7	RUN CGO_ENABLED=0 GOOS=linux go build -trimpath -ldflags="-s -w" -o /out/polar ./cmd/polar
8
9	# Stage 2: Minimal runtime image with git
10	FROM alpine:3.20
11	RUN apk add --no-cache git ca-certificates tzdata && \
12	adduser -D -u 10001 polar
13	WORKDIR /app
14	COPY --from=builder /out/polar /app/polar
15	RUN mkdir -p /app/data && chown -R polar:polar /app
16
17	USER polar
18	EXPOSE 3000
19	VOLUME ["/app/data"]
20
21	HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
22	CMD wget -qO- http://127.0.0.1:3000/healthz \|\| exit 1
23
24	ENTRYPOINT ["/app/polar"]
25