Support ARM64

[rathboma]

I run unit test suites on both x64 and arm64 and use testcontainers-node.

Unfortunately I have to disable the ryuk container on arm64, but I'd like to enable it!

Would it be possible to add an arm64 build of the container?

[codefromthecrypt]

Here's the Dockerfile I used to temporarily work around this and #16 I suspect it is cheating a little, but hope the tips help:

FROM golang:1.15.4-alpine3.12 as workspace
WORKDIR /go/src/github.com/testcontainers/moby-ryuk
COPY go.mod go.sum ./
RUN go mod download
COPY . ./
RUN CGO_ENABLED=0 go build -i -v -ldflags '-s' -o ./bin/moby-ryuk ./


FROM alpine:3.12.1
RUN apk --no-cache add ca-certificates
COPY --from=workspace /go/src/github.com/testcontainers/moby-ryuk/bin/moby-ryuk /app
CMD ["/app"]

docker buildx build --progress plain --tag ghcr.io/openzipkin/testcontainers-ryuk:latest --platform=linux/amd64,linux/arm64,linux/s390x --push .

buildx was setup with qemu per https://github.com/openzipkin/zipkin/blob/master/build-bin/setup_multiarch_docker

[codefromthecrypt]

once this is done, zipkin can switch to the main images (which also helps remove a log message about overriding them)

Note: we are also asked recently about s390x openzipkin/zipkin#3310

[codefromthecrypt]

tls: invalid signature by the server certificate: ECDSA verification failure on s390x

mentioned here golang/go#40949

[sscarduzio]

16:20:39.429 [scala-execution-context-global-12] ERROR org.testcontainers.utility.ResourceReaper - Timed out waiting for Ryuk container to start. Ryuk's logs:
standard_init_linux.go:211: exec user process caused "exec format error"

We are blocked too on this.

[rnorth]

This was done in #21