kubekins-e2e-v2 multi arch container image for ppc64le

[Rajalakshmi-Girish]

This is to have a kubekins-e2e-v2 image for ppc64le as per the discussion here https://kubernetes.slack.com/archives/CCK68P2Q2/p1739538851706299?thread_ts=1739359083.466129&cid=CCK68P2Q2

Ref: https://github.com/kubernetes/test-infra/tree/master/images/kubekins-e2e-v2

[Rajalakshmi-Girish]

Below are the findings when we tried building image using Dockerfile defined here

Following tools need support for ppc64le :

• cfssl
• kind
• kubetest2

Also, there is below error while running /google-cloud-sdk/install.sh in Dockerfile.
ERROR: (gcloud.components.update) The following components are unknown [gcloud-crc32c]

[Rajalakshmi-Girish]

/sig k8s-infra

[dims]

@Rajalakshmi-Girish can you please try to add a if condition to skip gcloud installer thingy and see if you can make progress.

[Rajalakshmi-Girish]

[root@raji-ws kubekins-e2e-v2]# git diff
diff --git a/images/kubekins-e2e-v2/Dockerfile b/images/kubekins-e2e-v2/Dockerfile
index caa854205c..d3d681e63c 100644
--- a/images/kubekins-e2e-v2/Dockerfile
+++ b/images/kubekins-e2e-v2/Dockerfile
@@ -66,11 +66,13 @@ ARG GCLOUD_SDK_URL=https://dl.google.com/dl/cloudsdk/channels/rapid/google-cloud
 RUN wget -O google-cloud-sdk.tar.gz -q $GCLOUD_SDK_URL && \
     tar xzf google-cloud-sdk.tar.gz -C / && \
     rm google-cloud-sdk.tar.gz && \
-    /google-cloud-sdk/install.sh \
-    --disable-installation-options \
-    --bash-completion=false \
-    --path-update=false \
-    --usage-reporting=false && \
+    if [ "${TARGETARCH}" != "ppc64le" ]; then \
+        /google-cloud-sdk/install.sh \
+        --disable-installation-options \
+        --bash-completion=false \
+        --path-update=false \
+        --usage-reporting=false; \
+    fi && \
     gcloud components install alpha beta && \
     gcloud info | tee /workspace/gcloud-info.txt

@@ -128,11 +130,13 @@ RUN mkdir /docker-graph
 # The invocation at the end is to prevent download failures downloads as in the bug.
 # TODO(porridge): bump CFSSL_VERSION to one where cfssljson supports the -version flag and test it as well.
 ARG CFSSL_VERSION
-RUN wget -q -O cfssl "https://github.com/cloudflare/cfssl/releases/download/v${CFSSL_VERSION}/cfssl_${CFSSL_VERSION}_linux_${TARGETARCH}" && \
+RUN if [ "${TARGETARCH}" != "ppc64le" ]; then \
+    wget -q -O cfssl "https://github.com/cloudflare/cfssl/releases/download/v${CFSSL_VERSION}/cfssl_${CFSSL_VERSION}_linux_${TARGETARCH}" && \
     wget -q -O cfssljson "https://github.com/cloudflare/cfssl/releases/download/v${CFSSL_VERSION}/cfssljson_${CFSSL_VERSION}_linux_${TARGETARCH}" && \
     chmod +x cfssl cfssljson && \
     mv cfssl cfssljson /usr/local/bin && \
-    cfssl version
+    cfssl version; \
+fi

 # replace kubectl with one from K8S_RELEASE
 ARG K8S_RELEASE=latest
[root@raji-ws kubekins-e2e-v2]#

I was able to build the image after skipping the gcloud install.sh and cfssl sections.
The install of KIND and KUBETEST2 were not attempted as the variables KIND_VERSION and KUBETEST2_VERSION were not passed.

[root@raji-ws kubekins-e2e-v2]# docker build . --build-arg GO_VERSION=1.24.0 --build-arg YQ_VERSION=v4.40.7 --no-cache
[+] Building 117.1s (23/23) FINISHED                                                                                                          docker:default
 => [internal] load build definition from Dockerfile                                                                                                    0.0s
 => => transferring dockerfile: 7.01kB                                                                                                                  0.0s
 => [internal] load metadata for docker.io/library/debian:bookworm                                                                                      0.1s
 => [internal] load .dockerignore                                                                                                                       0.0s
 => => transferring context: 2B                                                                                                                         0.0s
 => [internal] load build context                                                                                                                       0.0s
 => => transferring context: 91B                                                                                                                        0.0s
 => [ 1/18] FROM docker.io/library/debian:bookworm@sha256:4abf773f2a570e6873259c4e3ba16de6c6268fb571fd46ec80be7c67822823b3                              0.0s
 => CACHED [ 2/18] WORKDIR /workspace                                                                                                                   0.0s
 => [ 3/18] RUN mkdir -p /workspace                                                                                                                     0.9s
 => [ 4/18] RUN apt-get update && apt-get install -y --no-install-recommends     build-essential     ca-certificates     curl     file     git     ip  40.1s
 => [ 5/18] RUN wget -O google-cloud-sdk.tar.gz -q https://dl.google.com/dl/cloudsdk/channels/rapid/google-cloud-sdk.tar.gz &&     tar xzf google-clo  15.2s
 => [ 6/18] RUN apt-get update && apt-get install -y --no-install-recommends     apt-transport-https     ca-certificates     curl     gnupg2     soft  17.4s
 => [ 7/18] RUN curl -fsSL https://download.docker.com/linux/$(. /etc/os-release; echo "$ID")/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg       1.6s
 => [ 8/18] RUN apt-get update &&     apt-get install -y --no-install-recommends docker-ce docker-buildx-plugin &&     rm -rf /var/lib/apt/lists/* &&  10.7s
 => [ 9/18] RUN echo 'DOCKER_OPTS="${DOCKER_OPTS} --data-root=/docker-graph"' |     tee --append /etc/default/docker                                    1.2s
 => [10/18] RUN mkdir /docker-graph                                                                                                                     1.6s
 => [11/18] RUN if [ "ppc64le" != "ppc64le" ]; then     wget -q -O cfssl "https://github.com/cloudflare/cfssl/releases/download/v${CFSSL_VERSION}/cfss  1.9s
 => [12/18] RUN rm -f $(which kubectl) &&     export KUBECTL_VERSION=$(curl -L https://dl.k8s.io/release/latest.txt) &&     wget https://dl.k8s.io/rel  2.8s
 => [13/18] RUN wget -q "https://go.dev/dl/go1.24.0.linux-ppc64le.tar.gz" &&     tar xzf "go1.24.0.linux-ppc64le.tar.gz" -C /usr/local &&     mkdir -p  5.4s
 => [14/18] RUN wget -q "https://github.com/mikefarah/yq/releases/download/v4.40.7/yq_linux_ppc64le"     -O /usr/local/bin/yq && chmod +x /usr/local/b  1.7s
 => [15/18] RUN if [ -n "${KIND_VERSION}" ]; then     wget -q -O /usr/local/bin/kind https://kind.sigs.k8s.io/dl/v${KIND_VERSION}/kind-linux-ppc64le &  1.5s
 => [16/18] RUN if [ -n "${KUBETEST2_VERSION}" ]; then     wget -q https://storage.googleapis.com/k8s-staging-kubetest2/latest/linux-ppc64le.tgz &&     1.5s
 => [17/18] RUN [ -n "https://mirror.gcr.io" ] &&     echo "DOCKER_OPTS="${DOCKER_OPTS} --registry-mirror=https://mirror.gcr.io"" |     tee --append /  1.3s
 => [18/18] COPY [runner.sh,     /usr/local/bin/]                                                                                                       0.0s
 => exporting to image                                                                                                                                 12.2s
 => => exporting layers                                                                                                                                12.1s
 => => writing image sha256:1d05e11d16f025539b0dbf2c1a9dd91f605f4348384d953361775414c9d2a150                                                            0.0s
[root@raji-ws kubekins-e2e-v2]# 

[Rajalakshmi-Girish]

@dims we have submitted a request to kubetest2 to support ppc64le kubernetes-sigs/kubetest2#289
I would appreciate your suggestion on kind and cfssl, please.

[dims]

@Rajalakshmi-Girish the diff above looks reasonable to me!