feat(k8s): Add chart

chart/Chart.yaml

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+apiVersion: v2
+name: cro-php
+description: An example PHP app for Rozhlas
+type: application
+version: 0.0.0

chart/templates/NOTES.txt

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+See: https://{{ .Values.host }}

chart/templates/deploy.yml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Release.Name}}
+spec:
+  revisionHistoryLimit: 0
+  replicas: {{ .Values.replicas }}
+  selector:
+    matchLabels:
+      app: {{ .Release.Name}}
+  template:
+    metadata:
+      labels:
+        app: {{ .Release.Name}}
+    spec:
+      containers:
+        - name: php
+          image: {{ .Values.phpImage }}
+        - name: nginx
+          image: {{ .Values.nginxImage }}
+          ports:
+            - containerPort: 80

chart/templates/ing.yml

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+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: {{ .Release.Name}}
+  annotations:
+    cert-manager.io/cluster-issuer: letsencrypt
+spec:
+  ingressClassName: nginx
+  tls:
+    - hosts:
+        - {{ .Values.host }}
+      secretName: {{ .Values.host }}-tls
+  rules:
+    - host: {{ required ".Values.host is required" .Values.host }}
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: {{ .Release.Name}}
+                port:
+                  number: 80

chart/templates/svc.yml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Release.Name}}
+spec:
+  selector:
+    app: {{ .Release.Name}}
+  ports:
+    - port: 80

chart/values.yaml

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+# Required
+host:
+
+# Optional
+replicas: 2
+phpImage: ghcr.io/sika-training-examples/cro-php-example:php
+nginxImage: ghcr.io/sika-training-examples/cro-php-example:nginx