feat: add cirrina chart (#1)

Author: Frnd-me

.github/workflows/build.yml

@@ -0,0 +1,17 @@
+name: Build
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+jobs:
+  Build:
+    if: github.repository == 'CollaborativeStateMachines/Cirrina-Helm'
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+        
+      - name: Perform commit linting
+        uses: wagoid/commitlint-github-action@v6

.github/workflows/publish.yml

@@ -0,0 +1,27 @@
+name: Release Charts
+on:
+  push:
+    branches:
+      - main
+jobs:
+  Release:
+    if: github.repository == 'CollaborativeStateMachines/Cirrina-Helm'
+    name: Release
+    permissions:
+      contents: write
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
+
+      - name: Run chart-releaser
+        uses: helm/chart-releaser-action@v1.7.0
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

README.md

@@ -1,2 +1,53 @@
-# Cirrina-Helm
-Cirrina helm charts.
+# Cirrina Helm Charts
+
+## Cirrina
+
+The [Cirrina Helm chart](charts/cirrina) deploys Cirrina.
+
+### Values
+
+For values, see [values.yaml](charts/cirrina/values.yaml).
+
+An example `values.yaml` file is as follows:
+
+```yaml
+cirrina:
+  image:
+    tag: unstable
+
+  replicaCount: 2
+
+  appPath: "http://example.com/main.pkl"
+  serviceBindingsPath: "http://example.com/services.pkl"
+  instantiate: "stateMachineOne,stateMachineTwo"
+
+  natsEventUrl: "nats://nats:4222/"
+  natsContextUrl: "nats://nats:4222/"
+
+  extraEnvVars:
+    - name: OTEL_METRIC_EXPORT_INTERVAL
+      value: "1000"
+    - name: OTEL_EXPORTER_OTLP_ENDPOINT
+      value: "http://otel-collector:4317/"
+```
+
+### Deployment
+
+To deploy Cirrina, use `kubectl`:
+
+```console
+helm template prod charts/cirrina \
+  --namespace default \
+  -f values.yaml \
+| kubectl apply -f -
+```
+
+Or use another orchestration tool, such
+as [Open Cluster Management](https://open-cluster-management.io/):
+
+```console
+helm template prod charts/cirrina \
+  --namespace default \
+  -f values.yaml \
+| clusteradm --context="kind-hub" create work prod-cirrina --clusters cluster1 -f -
+```

charts/cirrina/Chart.yaml

@@ -0,0 +1,5 @@
+apiVersion: v2
+name: cirrina
+description: Helm chart for deploying Cirrina
+type: application
+version: 0.1.0

charts/cirrina/templates/_helpers.tpl

@@ -0,0 +1,7 @@
+{{- define "cirrina.name" -}}
+cirrina
+{{- end -}}
+
+{{- define "cirrina.fullname" -}}
+{{ .Release.Name }}-cirrina
+{{- end -}}

charts/cirrina/templates/deployment.yaml

@@ -0,0 +1,38 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "cirrina.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app.kubernetes.io/name: {{ include "cirrina.name" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+spec:
+  replicas: {{ .Values.cirrina.replicaCount }}
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: {{ include "cirrina.name" . }}
+      app.kubernetes.io/instance: {{ .Release.Name }}
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/name: {{ include "cirrina.name" . }}
+        app.kubernetes.io/instance: {{ .Release.Name }}
+    spec:
+      containers:
+        - name: cirrina
+          image: "{{ .Values.cirrina.image.repository }}:{{ .Values.cirrina.image.tag }}"
+          imagePullPolicy: IfNotPresent
+          env:
+            - name: APP_PATH
+              value: {{ .Values.cirrina.appPath | quote }}
+            - name: SERVICE_BINDINGS_PATH
+              value: {{ .Values.cirrina.serviceBindingsPath | quote }}
+            - name: INSTANTIATE
+              value: {{ .Values.cirrina.instantiate | quote }}
+            - name: NATS_EVENT_URL
+              value: {{ .Values.cirrina.natsEventUrl | quote }}
+            - name: NATS_CONTEXT_URL
+              value: {{ .Values.cirrina.natsContextUrl | quote }}
+{{- if .Values.cirrina.extraEnvVars }}
+{{- toYaml .Values.cirrina.extraEnvVars | nindent 12 }}
+{{- end }}

charts/cirrina/values.yaml

@@ -0,0 +1,22 @@
+cirrina:
+  # Docker image configuration
+  image:
+    repository: marlonetheredgeuibk/cirrina
+    tag: latest
+  replicaCount: 1
+
+  # Application path must be a URL
+  appPath: ""
+
+  # Service implementation bindings path must be a URL
+  serviceBindingsPath: ""
+
+  # Instantiation of state machines must be valid state machine names
+  instantiate: ""
+
+  # NATS server URLs
+  natsEventUrl: ""
+  natsContextUrl: ""
+
+  # Extra environment variables for the container
+  extraEnvVars: [ ]