AKS wasm demo

deploy.sh

# need an ingress controller ideally
kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.4.0/deploy/static/provider/cloud/deploy.yaml

# wait a bit for nginx ip allocation...
IP="$(kubectl -n ingress-nginx get svc -o jsonpath="{.status.loadBalancer.ingress[0].ip}" ingress-nginx-controller)"

# apply workloads + runtimes
kubectl apply -f wasm.yaml

curl -v http://$IP/spin/hello
curl -v http://$IP/slight/hello

prereqs.sh

#!/usr/bin/env bash

az feature register --namespace "Microsoft.ContainerService" --name "WasmNodePoolPreview"

export GROUP=ace-waci2
export NAME=ace-waci2
export LOCATION=westcentralus # only region deployed with shims

az group create -g "${GROUP}" -l ${LOCATION}

# settings ace likes for cluster creation
az aks create -g $GROUP -n "${NAME}" -l $LOCATION --network-plugin azure --node-vm-size Standard_D4ads_v5  -c 2 -k 1.23.8 --network-plugin azure --vm-set-type VirtualMachineScaleSets --load-balancer-sku standard --node-osdisk-type Managed --node-osdisk-size 512

az aks get-credentials -g $GROUP -n $NAME

# juicy bits
az aks nodepool add -g "$GROUP" --cluster-name "$NAME" -n amd64wasm --node-osdisk-type Managed --node-osdisk-size 512 --node-vm-size Standard_D4ads_v5  -c 1 --workload-runtime WasmWasi
az aks nodepool add -g "$GROUP" --cluster-name "$NAME" -n arm64wasm --node-osdisk-type Managed --node-osdisk-size 512 --node-vm-size Standard_D4pds_v5  -c 1 --workload-runtime WasmWasi

wasm.yaml

apiVersion: node.k8s.io/v1
kind: RuntimeClass
metadata:
  name: "wasmtime-slight-v1"
handler: "slight"
scheduling:
  nodeSelector:
    "kubernetes.azure.com/wasmtime-slight-v1": "true"
---
apiVersion: node.k8s.io/v1
kind: RuntimeClass
metadata:
  name: "wasmtime-spin-v1"
handler: "spin"
scheduling:
  nodeSelector:
    "kubernetes.azure.com/wasmtime-spin-v1": "true"
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wasm-slight
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wasm-slight
  template:
    metadata:
      labels:
        app: wasm-slight
    spec:
      runtimeClassName: wasmtime-slight-v1
      containers:
        - name: testwasm
          image: ghcr.io/deislabs/containerd-wasm-shims/examples/slight-rust-hello:latest
          command: ["/"]
---
apiVersion: v1
kind: Service
metadata:
  name: wasm-slight
spec:
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  selector:
    app: wasm-slight
  type: LoadBalancer
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: wasm-spin
spec:
  replicas: 3
  selector:
    matchLabels:
      app: wasm-spin
  template:
    metadata:
      labels:
        app: wasm-spin
    spec:
      runtimeClassName: wasmtime-spin-v1
      containers:
        - name: testwasm
          image: ghcr.io/deislabs/containerd-wasm-shims/examples/spin-rust-hello:latest
          command: ["/"]
---
apiVersion: v1
kind: Service
metadata:
  name: wasm-spin
spec:
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  selector:
    app: wasm-spin
  type: LoadBalancer
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: wasm-ingress
  annotations:
    ingress.kubernetes.io/ssl-redirect: "false"
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
  rules:
    - http:
        paths:
          - path: /spin(/|$)(.*)
            pathType: Prefix
            backend:
              service:
                name: wasm-spin
                port:
                  number: 80
          - path: /slight(/|$)(.*)
            pathType: Prefix
            backend:
              service:
                name: wasm-slight
                port:
                  number: 80