Set allowPrivilegeEscalation to false for the service orchestrator

[wumbrath]

What this PR does / why we need it:
The executor/service orchestrator container does not need privilege escalation. As a security best practice and to allow for
runnning seldon in more restricted environments this PR sets the securityContext.allowPrivilegeEscalation property to false.

Which issue(s) this PR fixes:

Fixes #4409

Special notes for your reviewer:

^{The program was tested solely for our own use cases, which might differ from yours.
Winfried Umbrath [email protected], Mercedes-Benz Tech Innovation GmbH, imprint}

[seldondev]

Hi @wumbrath. Thanks for your PR.

I'm waiting for a SeldonIO or todo member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the jenkins-x/lighthouse repository.

[wumbrath]

/assign @majolo

[wumbrath]

Tests are working for me locally, not sure why it fails on github

[wumbrath]

/retest

[seldondev]

@wumbrath: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the jenkins-x/lighthouse repository.

[ukclivecox]

/test integration

[ukclivecox]

/test notebooks

[ukclivecox]

Looks good - will run tests

[ukclivecox]

Just 1 failure - will try again

[ukclivecox]

/test integration

[ukclivecox]

Seemed to pass integration but fail on shutdown:

[axsaucedo]

/test integration

[seldondev]

@wumbrath: The following test failed, say /retest to rerun them all:

Test name	Commit	Details	Rerun command
integration	8378e6b	link	/test integration

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the jenkins-x/lighthouse repository. I understand the commands that are listed here.

[axsaucedo]

It seems the previous failure was a rolling upgrade test and now it's a different one so we can confirm it was a flaky test so merging now 👍
/approve

[seldondev]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: axsaucedo

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• OWNERS [axsaucedo]

Approvers can indicate their approval by writing /approve in a comment
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[seldondev]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: axsaucedo

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [axsaucedo]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment