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| Original file line number | Diff line number | Diff line change |
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| # Salad Cloud Virtual Kubelet Demo | ||
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| These files were originally used in dtroyer's KubeCon2023 talk. | ||
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| ## Run the Demo | ||
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| This outlines running the demo on Docker Desktop's Kubernetes implementation: | ||
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| * Set up the environment with a .env file (or equivalent) similar to this one: | ||
| ```bash | ||
| export LOG_LEVEL=INFO | ||
| export SCE_API_KEY=<api-key> | ||
| export SCE_ORGANIZATION_NAME=salad | ||
| export SCE_PROJECT_NAME=demo | ||
| export NAMESPACE=saladcloud-demo | ||
| export NODE_NAME=${SCE_PROJECT_NAME} | ||
| ``` | ||
| * Start with a fresh Kubernetes environment. Only the docker-desktop conrol plane should be displayed | ||
| with `kubectl get node` and `kubectl get pod`. `demo.sh status` will run both of those commands | ||
| at once. | ||
| * Run the virtual kubelet via its Helm chart using `demo.sh start`. | ||
| * Run `demo.sh status` again to see that the virtual kubelet is registered as an agent | ||
| * Start the QR code workload with `kubectl apply qr.yaml`. | ||
| * Run `demo.sh status` again to see two additional pods listed that are the requested container groups. | ||
| The pod names should match the Container Groups in the Salad Portal (NOTE: with a prefix!) | ||
| * Note that Kubernetes pods are mapped to SCE Container Groups 1:1, specifying 2 replicas on the YAML spec | ||
| will result in two Contarer Groups being created. At this time there is not a mechanism to specify the | ||
| Container Group replicas and it will always be 1. | ||
| * Once a Container Group is shown running, grab the assigned URL from the portal and paste it into a browser. | ||
| Commence generating crazy QR codes that look like city skylines or a plaid flannel shirt. | ||
| * Run `kubectl delete -f qr.yaml` to stop the Container Groups. | ||
| * Run `demo.sh stop` to stop the virtual kubelet pod. |
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| #!/bin/bash | ||
| # demo.sh - Control demo saladcloud-virtual-kublet instance in K8s cluster | ||
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| # Typically a .env file similar to the following is used to configure the virtual kubelet | ||
| # export LOG_LEVEL=INFO | ||
| # export SCE_API_KEY=<api-key> | ||
| # export SCE_ORGANIZATION_NAME=salad | ||
| # export SCE_PROJECT_NAME=demo | ||
| # export NAMESPACE=saladcloud-demo | ||
| # export NODE_NAME=${SCE_PROJECT_NAME} | ||
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| TOP_DIR=$(cd $(dirname "$0") && pwd) | ||
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| # Script lives in a subdirectory of the top repo dir | ||
| pushd $TOP_DIR/.. >/dev/null | ||
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| IMAGE_TAG=${IMAGE_TAG:-latest} | ||
| NAMESPACE=${NAMESPACE:-saladcloud-demo} | ||
| NODE_NAME=${NODE_NAME:-demo} | ||
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| if [[ "$1" == "start" ]]; then | ||
| shift | ||
| CMD=" \ | ||
| helm install \ | ||
| --create-namespace \ | ||
| --namespace ${NAMESPACE} \ | ||
| --set salad.organizationName=${SCE_ORGANIZATION_NAME} \ | ||
| --set salad.projectName=${SCE_PROJECT_NAME} \ | ||
| --set provider.image.tag=${IMAGE_TAG} \ | ||
| --set provider.nodename=${NODE_NAME}-vk \ | ||
| ${NODE_NAME} \ | ||
| ./charts/virtual-kubelet" | ||
| echo $CMD | ||
| $CMD \ | ||
| --set salad.apiKey=${SCE_API_KEY} \ | ||
| --set provider.logLevel=${LOG_LEVEL} | ||
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| elif [[ "$1" == "stop" ]]; then | ||
| shift | ||
| helm uninstall \ | ||
| --namespace ${NAMESPACE} \ | ||
| ${NODE_NAME} | ||
| elif [[ "$1" == "status" ]]; then | ||
| echo "" | ||
| echo "$ kubectl get node" | ||
| kubectl get node | ||
| echo "" | ||
| echo "$ kubectl --namespace ${NAMESPACE} get pod" | ||
| kubectl --namespace ${NAMESPACE} get pod | ||
| elif [[ "$1" == "logs" ]]; then | ||
| podname=$(kubectl --namespace ${NAMESPACE} get pod|awk "/${NODE_NAME}/ { print \$1 }") | ||
| kubectl --namespace ${NAMESPACE} logs $podname | ||
| elif [[ "$1" == "apply" ]]; then | ||
| # Launch the qr-code | ||
| kubectl apply -f demo/qr.yaml | ||
| elif [[ "$1" == "delete" ]]; then | ||
| # Delete the qr-code | ||
| kubectl delete -f demo/qr.yaml | ||
| fi | ||
|
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| popd >/dev/null |
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| apiVersion: apps/v1 | ||
| kind: Deployment | ||
| metadata: | ||
| labels: | ||
| app: qr-code-demo | ||
| name: qr-code | ||
| namespace: saladcloud-demo | ||
| spec: | ||
| replicas: 2 | ||
| selector: | ||
| matchLabels: | ||
| app: qr-code-demo | ||
| template: | ||
| metadata: | ||
| annotations: | ||
| salad.com/country-codes: us | ||
| salad.com/networking-protocol: "http" | ||
| salad.com/networking-port: "1234" | ||
| salad.com/networking-auth: "false" | ||
| salad.com/gpu-classes: "dec851b7-eba7-4457-a319-a01b611a810e" | ||
| # salad.com/gpu-classes: "cb6c1931-89b6-4f76-976f-54047320ccc6" | ||
| labels: | ||
| app: qr-code-demo | ||
| spec: | ||
| containers: | ||
| - image: saladtechnologies/stable-fast-qr-code:latest-baked | ||
| name: qr-code | ||
| resources: | ||
| limits: | ||
| cpu: 2 | ||
| memory: 8192 | ||
| env: | ||
| - name: HOST | ||
| value: "*" | ||
| - name: PORT | ||
| value: "1234" | ||
| startupProbe: | ||
| exec: | ||
| command: [ "curl", "--fail", "http://localhost:1234/hc" ] | ||
| initialDelaySeconds: 60 | ||
| failureThreshold: 60 | ||
| periodSeconds: 10 | ||
| livenessProbe: | ||
| exec: | ||
| command: [ "curl", "--fail", "http://localhost:1234/hc" ] | ||
| initialDelaySeconds: 60 | ||
| failureThreshold: 60 | ||
| periodSeconds: 10 | ||
| nodeSelector: | ||
| kubernetes.io/role: agent | ||
| type: virtual-kubelet | ||
| os: | ||
| name: linux | ||
| restartPolicy: Always | ||
| tolerations: | ||
| - key: virtual-kubelet.io/provider | ||
| operator: Equal | ||
| value: saladcloud | ||
| effect: NoSchedule |
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