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Merge pull request #7 from linode/APL-823
feat: add spin operator prereqs and spin-app Helm charts
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‎README.md

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## Contents
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## kserve-ai-inferencing
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## inferencing-service
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An example Helm chart to create a Kserve `inferenceService`.
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A Helm chart to create a Kserve `inferenceService`.
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## open-webui
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An example Kverno `Policy` to disable Istio sidecar injection to be used in combination with the `open-webui` Helm chart.
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A Kverno `Policy` to disable Istio sidecar injection to be used in combination with the `open-webui` Helm chart.
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## rabbitmq-python
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Source code for an example chat app, sending messages to all clients that are currently connected.
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## spinkube
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Helm charts for installing `spin-operator` prerequisites, a spin shim executor and a spin application.
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## vote-app
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Source code to build the `vote`, `worker` and `results` images based on the [Example Voting App](https://github.com/dockersamples/example-voting-app).

‎notes.yaml

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image:
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repository: ghcr.io/spinkube/containerd-shim-spin/examples/spin-rust-hello
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tag: v0.13.0
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values: | kubecon-api.yaml
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fullnameOverride: ""
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image:
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repository: thansdemo.azurecr.io/kubecon-api
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tag: 0.20.0
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replicaCount: 0
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env: []
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commonLabels: {}
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enableAutoscaling: false
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runtimeConfig:
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loadFromSecret: api-rtc
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resources: {}
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volumeMounts: []
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volumes: []
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livenessProbe: null
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readinessProbe: {}

‎spinkube/spin-app/Chart.yaml

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apiVersion: v2
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name: spin-application
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description: App Platform quick start Helm chart for creating a Spin Application
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version: 1.1.0
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appVersion: "1.16.0"
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icon: https://linode.github.io/apl-charts/icons/spinkube.png

‎spinkube/spin-app/README.md

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# SpinApp
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A SpinApp is a Custom Resource to deploy WebAssembly microservices and web applications based on Spin. Spin is a framework for building and running event-driven microservice applications with WebAssembly (Wasm) components. Spin uses Wasm because it is sand boxed, portable, and fast. Millisecond cold start times mean no need to keep applications “warm”. Many languages have Wasm implementations, so developers don’t have to learn new languages or libraries.
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Spin is open source and built on standards, meaning you can take your Spin applications anywhere. There are Spin implementations for local development, for self-hosted servers, for Kubernetes, and for cloud-hosted services.
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## Prerequisites
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- `kwasm-operator` installed.
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- `spin-operator-crds` installed.
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- `spin-operator` installed.
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- `spin-shim-executor` CR added to the Team namespace.

‎spinkube/spin-app/templates/_helpers.tpl

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{{/*
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Create a default fully qualified app name.
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We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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If release name contains chart name it will be used as a full name.
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*/}}
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{{- define "spinapp.fullname" -}}
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{{- if .Values.fullnameOverride }}
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{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
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{{- else }}
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{{- .Release.Name | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{- end }}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "spinapp.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
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{{- end }}
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{{/*
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Common labels
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*/}}
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{{- define "spinapp.labels" -}}
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helm.sh/chart: {{ include "spinapp.chart" . }}
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app.kubernetes.io/instance: {{ .Release.Name }}
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app.kubernetes.io/managed-by: {{ .Release.Service }}
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app.kubernetes.io/name: {{ include "spinapp.fullname" . }}
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app.kubernetes.io/owner: {{ .Release.Namespace }}
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otomi.io/app: {{ include "spinapp.fullname" . }}
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sidecar.istio.io/inject: "false"
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{{- end }}

‎spinkube/spin-app/templates/spin-app.yaml

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apiVersion: core.spinkube.dev/v1alpha1
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kind: SpinApp
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metadata:
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name: {{ include "spinapp.fullname" . }}
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labels: {{- include "spinapp.labels" . | nindent 4 }}
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{{- with .Values.commonLabels }}
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{{- toYaml . | nindent 4 }}
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{{- end }}
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spec:
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image: {{ .Values.image.repository }}:{{ .Values.image.tag }}
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executor: containerd-shim-spin
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replicas: {{ .Values.replicaCount }}
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{{- with .Values.runtimeConfig }}
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runtimeConfig: {{- . | toYaml | nindent 4 }}
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{{- end }}
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enableAutoscaling: {{ .Values.enableAutoscaling }}
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podLabels: {{- include "spinapp.labels" . | nindent 4 }}
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{{- with .Values.resources }}
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resources: {{- . | toYaml | nindent 4 }}
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{{- end }}
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{{- with .Values.env }}
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variables: {{- toYaml . | nindent 4 }}
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{{- end }}
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{{- with .Values.volumeMounts }}
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volumeMounts:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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{{- with .Values.volumeMounts }}
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volumes:
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{{- toYaml . | nindent 4 }}
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{{- end }}
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checks:
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{{- with .Values.livenessProbe }}
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liveness:
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{{- . | toYaml | nindent 6 }}
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{{- end }}
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{{- with .Values.readinessProbe }}
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readiness:
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{{- . | toYaml | nindent 6 }}
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{{- end }}

‎spinkube/spin-app/values.yaml

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## @param fullnameOverride String to fully override deployment.fullname template
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## Used by APL to set the name for all resources based on the workload name
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##
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fullnameOverride: ""
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## @param image.repository your image repository
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## @param image.tag image tag (immutable tags are recommended)
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## @param image.pullPolicy image pull policy
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##
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image:
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repository: ""
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tag: ""
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## @param replicaCount Number of replicas to deploy
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##
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replicaCount: 2
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## RuntimeConfig defines configuration to be applied at runtime for this app.
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runtimeConfig: {}
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## @param env Environment variables for the container
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##
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env: []
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# - name: TARGET
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# value: VALUE
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# - name: DB_PASSWORD
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# valueFrom:
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# secretKeyRef:
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# name: user
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# key: password
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## @param labels Additional labels for all resources
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## ref: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/
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##
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commonLabels: {}
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## EnableAutoscaling indicates whether the app is allowed to autoscale. If true then the operator leaves
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## the replica count of the underlying deployment to be managed by an external autoscaler (HPA/KEDA).
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## Replicas cannot be defined if this is enabled. By default EnableAutoscaling is false.
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enableAutoscaling: false
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## Containers' resource requests and limits
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## ref: https://kubernetes.io/docs/user-guide/compute-resources/
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## You can change default resource request in the workload values. This increases the chance the charts will run on environments with little
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## resources, such as Minikube.
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## @param resources.limits The resources limits for the container
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## @param resources.requests The requested resources for the container
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##
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resources: {}
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# limits:
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# cpu: 300m
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# memory: 128Mi
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# requests:
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# cpu: 100m
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# memory: 32Mi
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volumeMounts: []
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# - name: my-secret
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# mountPath: /secrets
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# readOnly: true
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# - mountPath: /tmp
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# name: tmp
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# - name: config-volume
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# mountPath: /etc/config
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## @param Volumes A list of volumes to be added to the pod
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##
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volumes: []
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# - name: my-secret
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# secret:
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# secretName: my-secret
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# - name: tmp
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# emptyDir: {}
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# - name: config-volume
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# configMap:
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# name: special-config
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## Container liveness probe.
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## ref: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-probes
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##
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livenessProbe:
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# httpGet:
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# path: /
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# port: http
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## Container readiness probe.
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## ref: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-probes
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##
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readinessProbe: {}
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# httpGet:
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# path: /
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# port: http

‎spinkube/spin-operator-prereq/Chart.yaml

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apiVersion: v2
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name: spin-operator-prerequisites
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description: A Helm chart for Kubernetes
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# A chart can be either an 'application' or a 'library' chart.
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#
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# Application charts are a collection of templates that can be packaged into versioned archives
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# to be deployed.
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#
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# Library charts provide useful utilities or functions for the chart developer. They're included as
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# a dependency of application charts to inject those utilities and functions into the rendering
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# pipeline. Library charts do not define any templates and therefore cannot be deployed.
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type: application
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# This is the chart version. This version number should be incremented each time you make changes
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# to the chart and its templates, including the app version.
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# Versions are expected to follow Semantic Versioning (https://semver.org/)
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# NOTE: this version is kept static in version control but is bumped when packaging and releasing
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version: 0.5.0
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# This is the version number of the application being deployed. This version number should be
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# incremented each time you make changes to the application. Versions are not expected to
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# follow Semantic Versioning. They should reflect the version the application is using.
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# It is recommended to use it with quotes.
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# NOTE: this version is kept static in version control but is bumped when packaging and releasing
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appVersion: "v0.5.0"
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icon: https://linode.github.io/apl-charts/icons/spinkube.png

‎spinkube/spin-operator-prereq/README.md

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## Prerequisites
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- `kwasm-operator` installed.

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