docs: Add KubeCon NA 22 Demo

examples/kubecon-na-22-demo/Makefile

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+JAEGER_VERSION ?= v1.38.0
+LFC_NAMESPACE ?= keptn-lifecycle-controller-system
+PODTATO_NAMESPACE ?= podtato-kubectl
+
+.PHONY: install
+install:
+	make -C ../observability install
+	make -C ../observability import-grafana-dashboard
+
+.PHONY: port-forward-jaeger
+port-forward-jaeger:
+	make -C ../observability port-forward-jaeger
+
+.PHONY: port-forward-grafana
+port-forward-grafana:
+	make -C ../observability port-forward-grafana
+
+.PHONY: deploy-version-1
+deploy-version-1:
+	kubectl create namespace "$(PODTATO_NAMESPACE)" --dry-run=client -o yaml | kubectl apply -f -
+	kubectl apply -k version-1
+
+.PHONY: deploy-version-2
+deploy-version-2:
+	kubectl create namespace "$(PODTATO_NAMESPACE)" --dry-run=client -o yaml | kubectl apply -f -
+	kubectl apply -k version-2
+
+.PHONY: deploy-version-3
+deploy-version-3:
+	kubectl create namespace "$(PODTATO_NAMESPACE)" --dry-run=client -o yaml | kubectl apply -f -
+	kubectl apply -k version-3
+
+.PHONY: undeploy-podtatohead
+undeploy-podtatohead:
+	kubectl delete ns "$(PODTATO_NAMESPACE)" --ignore-not-found=true
+
+	@echo "######################"
+	@echo "PodTatoHead undeployed"
+	@echo "######################"
+
+.PHONY: uninstall
+uninstall: undeploy-podtatohead
+	make -C ../observability uninstall

examples/kubecon-na-22-demo/README.md

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+# KubeCon 2022 NA Demo
+
+This demonstration is based on the [Observability Example](../observability) and should do the following:
+
+![img.png](assets/big-picture.png)
+
+## Prepare Secret for Slack Notification
+> kubectl create secret generic slack-notification --from-literal=SECURE_DATA='{"slack_hook":"HOOK","text":"Deployed PodTatoHead Application"}' -n podtato-kubectl -oyaml --dry-run > base/slack-secret.yaml
+
+## Deploy the Observability Part
+> make install
+
+## Port-Forward Grafana
+> make port-forward-grafana
+
+## Port-Forward Jaeger
+> make port-forward-jaeger
+
+## Deploy Version 1 of the PodTatoHead
+> make deploy-version-1
+
+Now watch the progress on the cluster
+> kubectl get keptnworkloadinstances
+> kubectl get keptnappversions
+
+You could also open up a browser and watch the progress in Jaeger/Grafana. You can find the Context ID in the "TraceId" Field of the KeptnAppVersion
+
+The deployment should fail because of too few cpu resources
+
+## Deploy Version 2 of the PodTatoHead
+> make deploy-version-2
+
+* Watch the progress of the deployments
+* After some time, you should see that everything is successful
+
+## Deploy Version 3
+> make deploy-version-3
+
+* This should only change one service, you can see that only this changed in the trace

examples/kubecon-na-22-demo/base/.gitignore

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+slack-secret.yaml

examples/kubecon-na-22-demo/base/app-post-deploy.yaml

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+apiVersion: lifecycle.keptn.sh/v1alpha1
+kind: KeptnTaskDefinition
+metadata:
+  name: post-deployment-notification
+  namespace: podtato-kubectl
+spec:
+  function:
+    httpRef:
+      url: https://raw.githubusercontent.com/keptn/lifecycle-controller/main/functions-runtime/samples/ts/slack.ts
+    secureParameters:
+      secret: slack-secret

examples/kubecon-na-22-demo/base/app.yaml

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+apiVersion: lifecycle.keptn.sh/v1alpha1
+kind: KeptnApp
+metadata:
+  name: podtato-head
+  namespace: podtato-kubectl
+spec:
+  version: "1.0.0"
+  workloads:
+    - name: podtato-head-left-arm
+      version: 0.2.7
+    - name: podtato-head-left-leg
+      version: 0.2.7
+    - name: podtato-head-entry
+      version: 0.2.7
+    - name: podtato-head-right-arm
+      version: 0.1.0
+    - name: podtato-head-left-arm
+      version: 0.2.7
+    - name: podtato-head-hat
+      version: 0.1.0
+  postDeploymentTasks:
+    - post-deployment-notification
+
+

examples/kubecon-na-22-demo/base/kustomization.yaml

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+resources:
+  - app.yaml
+  - manifest.yaml
+  - app-post-deploy.yaml
+  - slack-secret.yaml
+  - provider.yaml