Add flag to APIServer service's oauth port

[cam-garrison]

The issue resolved by this Pull Request:

Resolves #490

Description of your changes:

This small PR wraps the Oauth port in the APIServer's Service object behind the .APIServer.EnableRoute flag so that if a DSPA is created with spec.apiServer.enableOauth=false, this port will not exist in the service.

Testing instructions

Tested with IMG=quay.io/cgarriso/data-science-pipelines-operator:service-oauth

Deployed DSPO, created a sample DSPA with

spec:
  apiServer:
    enableOauth: false

and ensured that port:

    - name: oauth
      port: 8443
      protocol: TCP
      targetPort: oauth

is not present in the service.

Similarly, created DSPA with enableOauth: true and ensured that the port was in the service.

Checklist

• The commits are squashed in a cohesive manner and have meaningful messages.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work

[dsp-developers]

A new image has been built to help with testing out this PR: quay.io/opendatahub/data-science-pipelines-operator:pr-491
An OCP cluster where you are logged in as cluster admin is required.

To use this image run the following:

cd $(mktemp -d)
git clone git@github.com:opendatahub-io/data-science-pipelines-operator.git
cd data-science-pipelines-operator/
git fetch origin pull/491/head
git checkout -b pullrequest dca773543200c97677d416dddfb594d4c29bba0d
make deploy IMG="quay.io/opendatahub/data-science-pipelines-operator:pr-491"

More instructions here on how to deploy and test a Data Science Pipelines Application.

[amadhusu]

/lgtm

[amadhusu]

/approve

[HumairAK]

/lgtm
/approve

Thanks!!

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: amadhusu, HumairAK

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