busybox image: add symlink for /bin/tee

[justinsb]

This makes the bazel image more similar to the bash build, which uses
the image from the docker registry.

tee is used by e.g. kops to send logs to both a /var/log file and to
stdout (which is then captured by docker).

Add /bin/tee symlink to bazel build for busybox, so that CI builds have /bin/tee

[cblecker]

@justinsb is there an open PR for this change against master, or is not needed there?

[justinsb]

This should fix e.g. https://k8s-gubernator.appspot.com/build/kubernetes-jenkins/pr-logs/pull/52755/pull-kubernetes-e2e-kops-aws-prow/18/

My theory is that CI builds build busybox via bazel, and these images don't have /bin/tee (unlike the "real" images built by the bash process, which use the "official" docker build)

cc @krzyzacy

[justinsb]

And @cblecker it looks like in 1.8 we switched to use the official docker image in the bazel build, so this can't apply to master.

Not sure if we want to backfix 1.7, as this seems to only affect CI...

[krzyzacy]

/assign @mwielgus
oh oh the tests are still blocked by #55362

[cblecker]

/retest

[justinsb]

/retest

[krzyzacy]

/lgtm

[krzyzacy]

can someone approve this PR :-) We are blocking on this to migrate kops presubmit off Jenkins

[cblecker]

/approve no-issue

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[cblecker]

ping @mwielgus for cherry-pick approval

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[fejta-bot]

/retest
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[k8s-github-robot]

Automatic merge from submit-queue.