add initial config for mediawiki and teastore

teastore/application.yaml

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+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: teastore
+  namespace: ptp-chat
+spec:
+  project: ptp-chat
+  source:
+    repoURL: https://gitea.controller.bittehackmichnicht.de/argocd/kubernetes-config.git
+    targetRevision: main
+    path: teastore
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: ptp-chat
+  syncPolicy:
+    automated:
+      prune: true
+      selfHeal: true
+      enabled: true
+    ignoreDifferences:
+      - kind: Secret
+        jsonPointers:
+          - /data

teastore/istio.yaml

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+---
+apiVersion: networking.istio.io/v1beta1
+kind: Gateway
+metadata:
+  name: teastore-gateway
+  namespace: ptp-chat
+spec:
+  selector:
+    istio: ingressgateway # Holt sich das Standard-Ingress-Gateway
+  servers:
+    - port:
+        number: 443
+        name: https-teastore
+        protocol: HTTPS
+      hosts:
+        - teastore.k8s.bittehackmichnicht.de
+      tls:
+        mode: SIMPLE # TLS-Termination am Gateway, damit der VirtualService den Traffic aufteilen kann
+        credentialName: istio-cert # Name des TLS-Zertifikats in Kubernetes, das für die Verschlüsselung verwendet wird
+---
+apiVersion: networking.istio.io/v1beta1
+kind: VirtualService
+metadata:
+  name: teastore-vs
+  namespace: ptp-chat
+spec:
+  hosts:
+    - teastore.k8s.bittehackmichnicht.de
+  gateways:
+    - teastore-gateway
+  http:
+    - match:
+        - uri:
+            prefix: /
+      route:
+        - destination:
+            host: teastore-webui.ptp-chat.svc.cluster.local
+            port:
+              number: 8080

teastore/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: ptp-chat
+
+resources:
+  - istio.yaml
+  - https://raw.githubusercontent.com/DescartesResearch/TeaStore/master/examples/kubernetes/teastore-clusterip.yaml
+
+patches:
+  - target:
+      kind: Service
+      name: teastore-webui
+    patch: |-
+      apiVersion: v1
+      kind: Service
+      metadata:
+        name: teastore-webui
+      spec:
+        ports:
+          - port: 8080
+            targetPort: 8080