Add Istio example

README.md

@@ -69,6 +69,7 @@ All the examples are
 1. [Some Helm charts](https://github.com/philippemerle/KubeDiagrams/blob/main/examples/helm-charts/)
 1. [LeaderWorkerSet API](https://github.com/philippemerle/KubeDiagrams/blob/main/examples/lws/)
 1. [helmfile](https://github.com/philippemerle/KubeDiagrams/blob/main/examples/helmfile/)
+1. [Istio](https://github.com/philippemerle/KubeDiagrams/blob/main/examples/istio/)
 
 ## Prerequisites
 

examples/istio/README.md

@@ -0,0 +1,56 @@
+# Istio Example
+
+This example is dedicated to **[Istio](https://istio.io)**.
+
+## Instructions
+
+Generate the Kubernetes architecture diagrams for Istio Helm charts and helmfile:
+```sh
+$ ./generate.sh
+```
+
+## Generated architecture diagrams
+
+Architecture diagram for [Istio base Helm Chart](https://artifacthub.io/packages/helm/istio-official/base):
+
+![base.png](base.png)
+
+Architecture diagram for [Istiod Helm Chart](https://artifacthub.io/packages/helm/istio-official/istiod):
+
+![istiod.png](istiod.png)
+
+Architecture diagram for [Istio Gateway Helm Chart](https://artifacthub.io/packages/helm/istio-official/gateway):
+
+![gateway.png](gateway.png)
+
+Architecture diagram for [Istio CNI Helm Chart](https://artifacthub.io/packages/helm/istio-official/cni):
+
+![cni.png](cni.png)
+
+Architecture diagram for [Istio Ztunnel Helm Chart](https://artifacthub.io/packages/helm/istio-official/ztunnel):
+
+![ztunnel.png](ztunnel.png)
+
+Architecture diagram for [Istio Ambient Helm Chart](https://artifacthub.io/packages/helm/istio-official/ambient):
+
+![ambient.png](ambient.png)
+
+Architecture diagram for [Istiod Remote Helm Chart](https://artifacthub.io/packages/helm/istio-official/istiod-remote):
+
+![istiod-remote.png](istiod-remote.png)
+
+Architecture diagram for [istio-all.yaml helmfile](istio-all.yaml):
+
+![istio-all.png](istio-all.png)
+
+Architecture diagram for [istio-all.yaml helmfile](istio-all.yaml) with all namespaces:
+
+![istio-all-namespaces.png](istio-all-namespaces.png)
+
+Architecture diagram for [istio-all.yaml helmfile](istio-all.yaml) with focus on all Helm charts:
+
+![istio-all-helm-charts.png](istio-all-helm-charts.png)
+
+Architecture diagram for [istio-all.yaml helmfile](istio-all.yaml) with focus on all application clusters:
+
+![istio-all-applications.png](istio-all-applications.png)

examples/istio/all-applications.kd

@@ -0,0 +1,12 @@
+clusters:
+  - label: app.kubernetes.io/instance
+    show: false # clusters hidden.
+  - label: release
+    show: false # clusters hidden.
+  - label: helm.sh/chart
+    show: false # clusters hidden.
+  - label: chart
+    show: false # clusters hidden.
+nodes:
+  CustomResourceDefinition/apiextensions.k8s.io/v1:
+    show: false # CRD hidden.

examples/istio/all-helm-charts.kd

@@ -0,0 +1,5 @@
+clusters:
+  - label: app.kubernetes.io/instance
+    show: false # clusters hidden.
+  - label: release
+    show: false # clusters hidden.

examples/istio/generate.sh

@@ -0,0 +1,21 @@
+#! /bin/sh
+
+BIN=../../bin
+
+# Generate the Kubernetes architecture diagram for each Istio's Helm Chart.
+for chart in \
+  base \
+  istiod \
+  gateway \
+  cni \
+  ztunnel \
+  ambient \
+  istiod-remote
+do
+  $BIN/helm-diagrams https://istio-release.storage.googleapis.com/charts/${chart}
+done
+
+helmfile template -f istio-all.yaml | kube-diagrams - -o istio-all-namespaces.png
+helmfile template -f istio-all.yaml | kube-diagrams - -o istio-all.png --without-namespace
+helmfile template -f istio-all.yaml | kube-diagrams - -o istio-all-helm-charts.png --without-namespace --config all-helm-charts.kd
+helmfile template -f istio-all.yaml | kube-diagrams - -o istio-all-applications.png --without-namespace --config all-applications.kd

examples/istio/istio-all.yaml

@@ -0,0 +1,23 @@
+repositories:
+- name: istio
+  url: https://istio-release.storage.googleapis.com/charts
+
+releases:
+- name: istio-base
+  chart: istio/base
+  namespace: istio-system
+- name: istiod
+  chart: istio/istiod
+  namespace: istio-system
+- name: istio-ingressgateway
+  chart: istio/gateway
+  namespace: istio-ingressgateway
+- name: istio-cni
+  chart: istio/cni
+  namespace: kube-system
+- name: ztunnel
+  chart: istio/ztunnel
+#- name: istiod-remote
+#  chart: istio/istiod-remote
+# - name: ambient
+#   chart: istio/ambient