docs: kubernetes argocd helm install

Author: revant

docs/k8s-argocd.md

@@ -0,0 +1,34 @@
+# Install ArgoCD Helm Chart
+
+```shell
+helm repo add argo https://argoproj.github.io/argo-helm
+```
+
+Customize `values.yaml`, example using traefik.
+
+```yaml
+global:
+  domain: "argocd.localhost"
+
+configs:
+  params:
+    server.insecure: true
+
+server:
+  ingress:
+    enabled: true
+    annotations:
+      # nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
+      # nginx.ingress.kubernetes.io/ssl-passthrough: "true"
+      kubernetes.io/ingress.class: traefik
+      cert-manager.io/cluster-issuer: cybertec-at-le-issuer
+      traefik.ingress.kubernetes.io/sslPassthrough: "true"
+    ingressClassName: "traefik"
+    # ingressClassName: "nginx"
+```
+
+Create helm release
+
+```shell
+helm upgrade --install --namespace=argocd --create-namespace argocd argo/argo-cd -f values.yaml
+```