Dockerfile

FROM alpine:latest as downloader
ARG SKOPEO_VERSION=v1.4.1
ARG YQ_VERSION=v4.11.2
ARG NERDCTL_VERSION=0.11.0
ARG NGINX_VERSION=1.20-alpine
ARG RERGISRRY_VERSION=2.7.1
ARG MKCERT_VERSION=v1.4.3-patch-1.0
ARG KUBESPRAY_VERSION=latest
ARG KUBESPRAY_IMAGE=ghcr.io/k8sli/kubespray

WORKDIR /tools
RUN ARCH=$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/') \
    && apk --no-cache add wget ca-certificates \
    && wget -q -k https://github.com/mikefarah/yq/releases/download/${YQ_VERSION}/yq_linux_${ARCH}  -O /tools/yq-linux-${ARCH} \
    && wget -q -k https://github.com/k8sli/skopeo/releases/download/${SKOPEO_VERSION}/skopeo-linux-${ARCH} -O /tools/skopeo-linux-${ARCH} \
    && wget -q -k https://github.com/k8sli/mkcert/releases/download/${MKCERT_VERSION}/mkcert-${MKCERT_VERSION}-linux-${ARCH} -O /tools/mkcert-linux-${ARCH} \
    && wget -q -k https://github.com/containerd/nerdctl/releases/download/v${NERDCTL_VERSION}/nerdctl-full-${NERDCTL_VERSION}-linux-${ARCH}.tar.gz \
    && chmod a+x /tools/* \
    && ln -s /tools/skopeo-linux-${ARCH} /usr/bin/skopeo

WORKDIR /images
RUN ARCH=$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/') \
    && skopeo copy --insecure-policy --src-tls-verify=false --override-arch ${ARCH} --additional-tag nginx:${NGINX_VERSION} \
       docker://docker.io/library/nginx:${NGINX_VERSION} docker-archive:nginx-${NGINX_VERSION}.tar \
    && skopeo copy --insecure-policy --src-tls-verify=false --override-arch ${ARCH} --additional-tag registry:${RERGISRRY_VERSION} \
       docker://docker.io/library/registry:${RERGISRRY_VERSION} docker-archive:registry-${RERGISRRY_VERSION}.tar \
    && skopeo copy --insecure-policy --src-tls-verify=false --override-arch ${ARCH} --additional-tag kubespray:${KUBESPRAY_VERSION} \
       docker://${KUBESPRAY_IMAGE}:${KUBESPRAY_VERSION} docker-archive:kubespray-${KUBESPRAY_VERSION}.tar

FROM scratch
COPY . .
COPY --from=downloader /tools /resources/nginx/tools
COPY --from=downloader /images /resources/images
# COPY --from=${OS_PACKAGES_IMAGE}:${OS_PACKAGE_REPO_TAG} / /resources/nginx
# COPY --from=${KUBESPRAY_FILES_IMAGE}:${KUBESPRAY_REPO_TAG} / /resources/nginx
# COPY --from=${KUBESPRAY_IMAGES_IMAGE}:${KUBESPRAY_REPO_TAG} / /resources/registry