# STEP 1 build executable binary
FROM golang:1.23.0-alpine AS builder

ENV CADVISOR_VERSION="v0.49.1"

WORKDIR $GOPATH/src/github.com/google/cadvisor

RUN apk upgrade --no-cache \
 && apk add libc6-compat device-mapper findutils zfs build-base linux-headers bash git wget curl tar \
 && curl -L "https://github.com/google/cadvisor/archive/${CADVISOR_VERSION}.tar.gz" | tar xvz --strip 1 \
 && ./build/build.sh

# STEP 2 build the image including only the binary
FROM alpine:3.20.2

RUN apk upgrade --no-cache && apk add libc6-compat device-mapper findutils zfs \
 && rm -rf /var/cache/apk/*

COPY --from=builder /go/src/github.com/google/cadvisor/_output/cadvisor /usr/bin/cadvisor

EXPOSE 8080

HEALTHCHECK --interval=30s --timeout=3s CMD wget --quiet --tries=1 --spider http://127.0.0.1:8080/healthz || exit 1

ENTRYPOINT ["/usr/bin/cadvisor", "-logtostderr"]