common: Add Istio v1.16.0 manifests (kubeflow#2327)

* common: Add Istio v1.16.0 manifests

Signed-off-by: Apostolos Gerakaris <[email protected]>

* Update kustomization file in example to deploy istio-1-16

Signed-off-by: Apostolos Gerakaris <[email protected]>

* tests: Update install Istio GH action script

Use Istio 1.16 for testing

Signed-off-by: Apostolos Gerakaris <[email protected]>

* common: Remove PodDisruptionBudget resources for Istio

Istio 1.6.0 generated manifests include some policy/v1
PodDisruptionBudget resources that we need to remove. See:
- istio/istio#12602
- istio/istio#24000

The current manifests utilize two "delete" patches:
- common/istio-1-16/istio-install/base/patches/remove-pdb.yaml
- common/istio-1-16/cluster-local-gateway/base/patches/remove-pdb.yaml

However these patches do not work with kustomize v3.2.0. The root
cause is that v3.2.0 doesn't have the appropriate openapi schema for
the policy/v1 API version resources. This is fixed in kustomize v4+.
See:
- kubernetes-sigs/kustomize#3694 (comment)
- kubernetes-sigs/kustomize#4495

Changes:
- We disable the delete patches until we upgrade to kustomize v4+.
  - tracked in: kubeflow#1797

- As a temporary workaraound we remove PodDisruptionBudget resources
  manually with yq before deploying Istio manifests.

- Update README file with instructions.

Refs: kubeflow#2325

Signed-off-by: Apostolos Gerakaris <[email protected]>

* Update README

Use the --cluster-specific flag when generating Istio 1.16 manifests
for K8s-1.25. See:
* istio/istio#41220

Signed-off-by: Apostolos Gerakaris <[email protected]>

* tests: Update GH Action workflows

Trigger the workflows when the Istio version changes

Signed-off-by: Apostolos Gerakaris <[email protected]>

Signed-off-by: Apostolos Gerakaris <[email protected]>

.github/workflows/centraldb_kind_test.yaml

@@ -4,6 +4,7 @@ on:
     paths:
       - apps/centraldashboard/upstream/**
       - tests/gh-actions/kind-cluster.yaml
+      - tests/gh-actions/install_istio.sh
 
 jobs:
   build:

.github/workflows/dex_kind_test.yaml

@@ -4,6 +4,7 @@ on:
     paths:
       - common/dex/base/**
       - tests/gh-actions/kind-cluster.yaml
+      - tests/gh-actions/install_istio.sh
 
 jobs:
   build:

.github/workflows/jwa_kind_test.yaml

@@ -3,7 +3,11 @@ on:
   pull_request:
     paths:
       - apps/jupyter/jupyter-web-app/upstream/**
+<<<<<<< HEAD
       - tests/gh-actions/kind-cluster.yaml
+=======
+      - tests/gh-actions/install_istio.sh
+>>>>>>> tests: Update GH Action workflows
 
 jobs:
   build:

.github/workflows/nb_controller_kind_test.yaml

@@ -4,6 +4,7 @@ on:
     paths:
       - apps/jupyter/notebook-controller/upstream/**
       - tests/gh-actions/kind-cluster.yaml
+      - tests/gh-actions/install_istio.sh
 
 jobs:
   build:

.github/workflows/pipeline_kind_test.yaml

@@ -4,6 +4,7 @@ on:
     paths:
       - apps/pipeline/upstream/**
       - tests/gh-actions/kind-cluster.yaml
+      - tests/gh-actions/install_istio.sh
 
 jobs:
   build:

.github/workflows/poddefaults_kind_test.yaml

@@ -4,6 +4,7 @@ on:
     paths:
       - apps/admission-webhook/upstream/**
       - tests/gh-actions/kind-cluster.yaml
+      - tests/gh-actions/install_istio.sh
 
 jobs:
   build:

.github/workflows/profiles_kind_test.yaml

@@ -4,6 +4,7 @@ on:
     paths:
       - apps/profiles/upstream/**
       - tests/gh-actions/kind-cluster.yaml
+      - tests/gh-actions/install_istio.sh
 
 jobs:
   build:

.github/workflows/tb_controller_kind_test.yaml

@@ -4,6 +4,7 @@ on:
     paths:
       - apps/tensorboard/tensorboard-controller/upstream/**
       - tests/gh-actions/kind-cluster.yaml
+      - tests/gh-actions/install_istio.sh
 
 jobs:
   build:

.github/workflows/train_operator_kind_test.yaml

@@ -4,6 +4,7 @@ on:
     paths:
       - apps/training-operator/upstream/**
       - tests/gh-actions/kind-cluster.yaml
+      - tests/gh-actions/install_istio.sh
 
 jobs:
   build:

.github/workflows/twa_kind_test.yaml

@@ -3,7 +3,11 @@ on:
   pull_request:
     paths:
       - apps/tensorboard/tensorboards-web-app/upstream/**
+<<<<<<< HEAD
       - tests/gh-actions/kind-cluster.yaml
+=======
+      - tests/gh-actions/install_istio.sh
+>>>>>>> tests: Update GH Action workflows
 
 jobs:
   build:

.github/workflows/vwa_kind_test.yaml

@@ -4,6 +4,7 @@ on:
     paths:
       - apps/volumes-web-app/upstream/**
       - tests/gh-actions/kind-cluster.yaml
+      - tests/gh-actions/install_istio.sh
 
 jobs:
   build: