feat: add bentoml yatai stack contrib

.github/workflows/bentoml_kind_test.yaml

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+name: Build & Apply BentoML Yatai Stack manifests in KinD
+on:
+  pull_request:
+    paths:
+      - contrib/bentoml/**
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: Install KinD
+      run: ./tests/gh-actions/install_kind.sh
+
+    - name: Create KinD Cluster
+      run: kind create cluster --config tests/gh-actions/kind-cluster-1-24.yaml
+
+    - name: Install kustomize
+      run: ./tests/gh-actions/install_kustomize.sh
+
+    - name: Install cert-manager
+      run: ./tests/gh-actions/install_cert_manager.sh
+
+    - name: Build & Apply manifests
+      run: |
+        cd contrib/bentoml/
+        make test

contrib/bentoml/Makefile

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+BENTOML_YATAI_IMAGE_BUILDER_VERSION ?= 1.1.3
+BENTOML_YATAI_DEPLOYMENT_VERSION ?= 1.1.4
+BENTOML_HELM_CHART_REPO ?= https://bentoml.github.io/helm-charts
+
+.PHONY: bentoml-yatai-stack/bases
+bentoml-yatai-stack/bases: clean-kustomize
+	mkdir -p bentoml-yatai-stack/bases/yatai-image-builder
+	cd bentoml-yatai-stack/bases/yatai-image-builder && helm template --skip-tests yatai-image-builder-crds yatai-image-builder-crds --repo ${BENTOML_HELM_CHART_REPO} --namespace kubeflow --version ${BENTOML_YATAI_IMAGE_BUILDER_VERSION} > resources.yaml
+	cd bentoml-yatai-stack/bases/yatai-image-builder && helm template --skip-tests -f ../../../sources/yatai-image-builder-values.yaml yatai-image-builder yatai-image-builder --repo ${BENTOML_HELM_CHART_REPO} --namespace kubeflow --version ${BENTOML_YATAI_IMAGE_BUILDER_VERSION} >> resources.yaml
+	cp sources/kustomization-template.yaml bentoml-yatai-stack/bases/yatai-image-builder/kustomization.yaml
+	mkdir -p bentoml-yatai-stack/bases/yatai-deployment
+	cd bentoml-yatai-stack/bases/yatai-deployment && helm template --skip-tests yatai-deployment-crds yatai-deployment-crds --repo ${BENTOML_HELM_CHART_REPO} --namespace kubeflow --version ${BENTOML_YATAI_DEPLOYMENT_VERSION} > resources.yaml
+	cd bentoml-yatai-stack/bases/yatai-deployment && helm template --skip-tests -f ../../../sources/yatai-deployment-values.yaml yatai-deployment yatai-deployment --repo ${BENTOML_HELM_CHART_REPO} --namespace kubeflow --version ${BENTOML_YATAI_DEPLOYMENT_VERSION} >> resources.yaml
+	cp sources/kustomization-template.yaml bentoml-yatai-stack/bases/yatai-deployment/kustomization.yaml
+
+.PHONY: clean-kustomize
+clean-kustomize:
+	rm -rf bentoml-yatai-stack/bases
+
+.PHONY: test
+test:
+	kubectl create ns kubeflow || echo "namespace kubeflow already exists"
+	kustomize build bentoml-yatai-stack/default | kubectl apply --server-side -f -
+	kubectl -n kubeflow wait --for=condition=available --timeout=600s deploy/yatai-image-builder
+	kubectl -n kubeflow wait --for=condition=available --timeout=600s deploy/yatai-deployment
+	sleep 5
+	kubectl apply -n kubeflow -f example.yaml
+	sleep 5
+	kubectl -n kubeflow logs deploy/yatai-deployment
+	sleep 5
+	kubectl -n kubeflow wait --for=condition=available --timeout=600s deploy/test-yatai
+	kubectl -n kubeflow wait --for=condition=available --timeout=600s deploy/test-yatai-runner-0
+	kubectl delete -n kubeflow -f example.yaml
+	kustomize build bentoml-yatai-stack/default | kubectl delete -f -
+

contrib/bentoml/OWNERS

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+approvers:
+  - yetone
+  - yubozhao

contrib/bentoml/README.md

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+# BentoML Yatai Stack
+
+[BentoML Yatai Stack](https://github.com/bentoml/yatai-deployment) is a series of components for deploying models/bentos to Kubernetes at scale
+
+## Requirements
+
+* Kubernetes 1.20 - 1.24
+
+## Installation
+
+    * The yaml assumes you will install in kubeflow namespace
+
+```bash
+kustomize build bentoml-yatai-stack/default | kubectl apply -n kubeflow --server-side -f -
+```
+
+## Upgrating
+
+See [UPGRADE.md](UPGRADE.md)

contrib/bentoml/UPGRADE.md

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+# Upgrading Documentation
+
+## Updating manifests
+
+In order to update manifests make sure you are running the commands in linux.
+
+If you are running in another OS, please make sure to update the Makefile commands.
+
+You can refresh the configuration by running:
+
+```
+make bentoml-yatai-stack/base
+```
+
+## Updating to specific version
+
+Upgrading the version can be done by setting the `BENTOML_YATAI_STACK_VERSION` environment variable, such as:
+
+```
+# Set the desired version
+export BENTOML_YATAI_IMAGE_BUILDER_VERSION=1.1.0
+export BENTOML_YATAI_DEPLOYMENT_VERSION=1.1.0
+
+# Rebuild the kustomize bases
+make bentoml-yatai-stack/bases
+
+# Run new manifests against cluster
+kustomize build bentoml-yatai-stack/default | kubectl apply -f -
+```
+
+## Instructions for breaking changes
+
+The [Yatai upgrading docs](https://docs.bentoml.org/projects/yatai) provide step by step overview of breaking changes across minor and patch versions.
+
+

contrib/bentoml/bentoml-yatai-stack/bases/yatai-deployment/kustomization.yaml

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+resources:
+- resources.yaml