Draft: Adding FluxCD for local setup

clusters/dev/flux-system/base.yaml

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+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: dev-cluster
+  namespace: default
+spec:
+  interval: 1m0s
+  path: ./clusters/dev
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    name: observability
+    namespace: default

clusters/dev/flux-system/gitrepository.yaml

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+---
+apiVersion: source.toolkit.fluxcd.io/v1
+kind: GitRepository
+metadata:
+  name: observability
+  namespace: default
+spec:
+  url: https://github.com/lieberlois/observability-workshop.git
+  ref:
+    branch: flux
+  interval: 1m0s

clusters/dev/helmrepository.yaml

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+---
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: grafana
+  namespace: default
+spec:
+  interval: 5m
+  url: https://grafana.github.io/helm-charts
+---
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: ingress-nginx
+  namespace: default
+spec:
+  interval: 5m
+  url: https://kubernetes.github.io/ingress-nginx
+---
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: istio
+  namespace: default
+spec:
+  interval: 5m
+  url: https://istio-release.storage.googleapis.com/charts
+---
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: kiali
+  namespace: default
+spec:
+  interval: 5m
+  url: https://kiali.org/helm-charts
+---
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: elastic
+  namespace: default
+spec:
+  interval: 5m
+  url: https://helm.elastic.co
+---
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: fluent
+  namespace: default
+spec:
+  interval: 5m
+  url: https://fluent.github.io/helm-charts
+---
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: lebenitza
+  namespace: default
+spec:
+  interval: 5m
+  url: https://lebenitza.github.io/charts
+---
+apiVersion: source.toolkit.fluxcd.io/v1beta2
+kind: HelmRepository
+metadata:
+  name: prometheus-community
+  namespace: default
+spec:
+  interval: 5m
+  url: https://prometheus-community.github.io/helm-charts
+---

clusters/dev/infrastructure.yaml

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+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: infrastructure
+  namespace: default
+spec:
+  interval: 1m0s
+  path: ./local/kubernetes/infrastructure
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    name: observability
+    namespace: default

clusters/dev/ingress.yaml

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+---
+apiVersion: helm.toolkit.fluxcd.io/v2beta1
+kind: HelmRelease
+metadata:
+  name: nginx-ingress
+  namespace: ingress
+spec:
+  interval: 5m
+  chart:
+    spec:
+      chart: ingress-nginx
+      sourceRef:
+        kind: HelmRepository
+        name: ingress-nginx
+        namespace: default
+      interval: 5m
+  values:
+    controller:
+      replicaCount: 1
+      service:
+        type: ClusterIP

clusters/dev/istio.yaml

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+---
+apiVersion: helm.toolkit.fluxcd.io/v2beta1
+kind: HelmRelease
+metadata:
+  name: istio-base
+  namespace: istio-system
+spec:
+  interval: 5m
+  chart:
+    spec:
+      chart: base
+      sourceRef:
+        kind: HelmRepository
+        name: istio
+        namespace: default
+      interval: 5m
+---
+apiVersion: helm.toolkit.fluxcd.io/v2beta1
+kind: HelmRelease
+metadata:
+  name: istiod
+  namespace: istio-system
+spec:
+  dependsOn:
+    - name: istio-base
+  interval: 5m
+  chart:
+    spec:
+      chart: istiod
+      sourceRef:
+        kind: HelmRepository
+        name: istio
+        namespace: default
+      interval: 5m
+  values:
+    meshConfig:
+      defaultConfig:
+        tracing:
+          sampling: 100.0
+      defaultProviders:
+        tracing:
+        - zipkin
+      enableTracing: true
+      extensionProviders:
+        - name: "tempo"
+          zipkin:
+            service: "tempo-distributor.monitoring.svc.cluster.local"
+            port: 9411
+            maxTagLength: 56
+        - name: "zipkin"
+          zipkin:
+            service: "zipkin.istio-system.svc.cluster.local"
+            port: 9411
+            maxTagLength: 56
+---
+apiVersion: helm.toolkit.fluxcd.io/v2beta1
+kind: HelmRelease
+metadata:
+  name: kiali-server
+  namespace: istio-system
+spec:
+  interval: 5m
+  chart:
+    spec:
+      chart: kiali-server
+      sourceRef:
+        kind: HelmRepository
+        name: kiali
+        namespace: default
+      interval: 5m
+  values:
+    auth:
+      strategy: anonymous
+    server:
+      web_fqdn: localhost
+    external_services:
+        prometheus:
+          url: "http://prometheus-server.monitoring/"
+        grafana:
+          enabled: true
+          in_cluster_url: "http://grafana.monitoring/"
+          url: "http://localhost:8080/grafana"

clusters/dev/jaeger.yaml

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+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: jaeger
+  namespace: istio-system
+spec:
+  interval: 1m0s
+  path: ./local/kubernetes/tools/istio
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    name: observability
+    namespace: default