Dockerfile

# syntax=docker/dockerfile:1.4
FROM --platform=$BUILDPLATFORM golang:1.22.2 as builder
ARG TARGETOS
ARG TARGETARCH
WORKDIR /go/app
COPY go.mod go.mod
COPY go.sum go.sum
RUN go mod download

COPY . .
RUN CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH go build -o ./bin -ldflags="-extldflags=-static" ./cmd/...

FROM gcr.io/distroless/static:nonroot
LABEL org.opencontainers.image.source=https://github.com/patrick246/k8s-outdated-image-exporter
LABEL org.opencontainers.image.licenses="AGPL-3.0"
LABEL org.opencontainers.image.authors="https://github.com/patrick246"
LABEL org.opencontainers.image.url="https://github.com/patrick246/k8s-outdated-image-exporter/pkgs/container/k8s-outdated-image-exporter"
COPY --from=builder --link /go/app/bin/outdated-image-exporter /outdated-image-exporter
ENTRYPOINT ["/outdated-image-exporter"]