forgejo-runner-optimiser/Dockerfile

FROM golang:1.25-alpine AS builder-base

WORKDIR /app

COPY go.mod go.sum ./
RUN go mod download

COPY . .

# Collector build (no CGO needed)
FROM builder-base AS builder-collector

RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /resource-collector ./cmd/collector

# Receiver build (CGO needed for SQLite)
FROM builder-base AS builder-receiver

RUN apk add --no-cache gcc musl-dev
RUN CGO_ENABLED=1 GOOS=linux go build -ldflags="-s -w" -o /metrics-receiver ./cmd/receiver

# Collector image
FROM alpine:3.19 AS collector

COPY --from=builder-collector /resource-collector /usr/local/bin/resource-collector

ENTRYPOINT ["/usr/local/bin/resource-collector"]

# Receiver image
FROM alpine:3.19 AS receiver

RUN apk add --no-cache sqlite-libs

COPY --from=builder-receiver /metrics-receiver /usr/local/bin/metrics-receiver

EXPOSE 8080

ENTRYPOINT ["/usr/local/bin/metrics-receiver"]