ARG ARCH

# STEP 1 build executable binary
FROM amd64/golang:1.16.5-alpine3.13@sha256:c8cbfe53dae2363fa89a7359bdf2d2e7a82239ea36fe8ea5444cc365983331e6 AS builder-amd64
FROM arm32v7/golang:1.16.5-alpine3.13@sha256:f40484c9987573dd9ca305bac918f72a221840817fced17595a87c6fc06b275f AS builder-arm
FROM arm64v8/golang:1.16.5-alpine3.13@sha256:1ba55bae768e5b140b78671cfca51167f2eec88463314418f0904a205c34df7c AS builder-arm64
FROM builder-${ARCH} AS builder

ENV CADVISOR_VERSION="v0.38.8"

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 amd64/alpine:3.14.0@sha256:1775bebec23e1f3ce486989bfc9ff3c4e951690df84aa9f926497d82f2ffca9d AS base-amd64
FROM arm32v7/alpine:3.14.0@sha256:8d99168167baa6a6a0d7851b9684625df9c1455116a9601835c2127df2aaa2f5 AS base-arm
FROM arm64v8/alpine:3.14.0@sha256:53b74ddfc6225e3c8cc84d7985d0f34666e4e8b0b6892a9b2ad1f7516bc21b54 AS base-arm64
FROM base-${ARCH}

RUN apk upgrade --no-cache && apk add \
    libc6-compat="1.2.2-r3" \
    device-mapper="2.02.187-r1" \
    findutils="4.8.0-r1" \
    zfs="2.0.3-r1" \
 && rm -rf /var/cache/apk/*

COPY --from=builder /go/src/github.com/google/cadvisor/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"]