Automate microservices tutorial

[johnma14]

This PR tries to automate the microservices tutorial in the example section of the Istio docs.
It consists of 2 parts:

• update to the istio.io test framework to use the same test framework across multiple tests (parent-child relationship)
• added automated tests for the microservices tutorial which has the parent-child relationship
  • Throughout all the tutorials, updated the commands to create resources in the tutorial namespace
  • In setup-kubernetes-cluster, updated the roles and rolebindings for istio-system and tutorial namespaces.
    The original RBAC permissions are very broad and allow all verbs on all resources for several Kubernetes API Groups.
    In this PR, we have added a finer grained Kubernetes RBAC Role for read-write access to a participant's namespace.
    Also added a ClusterRole and ClusterRoleBindingto enable manual sidecar injection for pods in thetutorial namespace [add-istio-Enable Istio on productpage`].

Updates to the test framework to support this scenario includes added 3 new optional tags to the TestCase object -

• @parent: this is the parent id that will be used to identify the parent test case
• @child: this indicates that the test case if the child of a parent id. The parent id set using the @parent tag will
  be used here.
• @order: this tag will be used to specify the order in which the child tests need to be run

The child tests will be run as a subtest of the parent test.

Fixes #8429, #7989

[ ] Configuration Infrastructure
[X ] Docs
[ ] Installation
[ ] Networking
[ ] Performance and Scalability
[ ] Policies and Telemetry
[ ] Security
[ ] Test and Release
[ ] User Experience
[ ] Developer Infrastructure

[istio-policy-bot]

🤔 🐛 You appear to be fixing a bug in Go code, yet your PR doesn't include updates to any test files. Did you forget to add a test?

Courtesy of your friendly test nag.

[istio-policy-bot]

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Thanks for contributing!

Courtesy of your friendly welcome wagon.

[craigbox]

Mariam, please have a look at the test/lint output so we can move this forward. Thank you!

[johnma14]

@craigbox whenever you have some time to take a look at this one. Appreciate it.

[istio-testing]

@johnma14: PR needs rebase.

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 kubernetes/test-infra repository.

[istio-testing]

@johnma14: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
doc.test.profile_default_istio.io	e441e39	link	true	/test doc.test.profile_default
doc.test.multicluster_istio.io	e441e39	link	true	/test doc.test.multicluster
doc.test.profile_none_istio.io	e441e39	link	true	/test doc.test.profile_none
doc.test.profile_demo_istio.io	e441e39	link	true	/test doc.test.profile_demo
doc.test.profile_minimal_istio.io	e441e39	link	true	/test doc.test.profile_minimal
doc.test.profile-demo_istio.io	e441e39	link	true	/test doc.test.profile-demo
doc.test.profile-default_istio.io	e441e39	link	true	/test doc.test.profile-default
doc.test.profile-none_istio.io	e441e39	link	true	/test doc.test.profile-none
doc.test.profile-minimal_istio.io	e441e39	link	true	/test doc.test.profile-minimal

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 kubernetes/test-infra repository. I understand the commands that are listed here.

[craigbox]

If this is still relevant I'd love to get it merged. @johnma14 ?

[linsun]

@johnma14 no longer works on Istio any more. @ericvn thoughts? Would you and someone willing to step up to get this to finish line? My thoughts are we are probably okay without the tutorial.