# STEP 1 build executable binary
FROM golang:1.17.3-alpine3.13@sha256:33c95bc78fa434bae90c45d04e5a02612492acbb7118f35538a56ee0646c1bb7 AS builder

ENV CADVISOR_VERSION="v0.47.0"

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:3.18.0@sha256:02bb6f428431fbc2809c5d1b41eab5a68350194fb508869a33cb1af4444c9b11

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"]