Fix MLX UI Startup Failure on OpenShift

[ckadner]

Which issue is resolved by this Pull Request:

Resolves machine-learning-exchange/mlx#343

Description of your changes:

Add security context to mlx-ui:

      securityContext:
        # runAsUser: 0  # root, prior to https://github.com/machine-learning-exchange/mlx/pull/339
        runAsNonRoot: true
        runAsUser: 1000  # node
        fsGroup: 1000  # node

Checklist:

• Unit tests pass:
  Make sure you have installed kustomize == 3.2.1
  1. make generate-changed-only
  2. make test

/cc @Tomcli @yhwang @jbusche

[Tomcli]

/lgtm

[ckadner]

Thanks @Tomcli and @yhwang -- for the v1.5-branch should I create a separate PR or could you merge/cherry-pick directly?

[yhwang]

it's a merge, looks like you have to create another PR against v1.5-branch. Thanks

[ckadner]

it's a merge, looks like you have to create another PR against v1.5-branch

@yhwang @Tomcli -- I created the same PR for the v1.5-branch. Please merge when you get a chance. Thank you!