From 49808cfd7572c5146d0ef4aea1ebaf51867c42ff Mon Sep 17 00:00:00 2001
From: Kacey <--unset>
Date: Tue, 30 Jul 2024 12:09:16 -0600
Subject: [PATCH] add readme and kustomization.yaml to support kustomize
 deployments

---
 deploy/README.md          | 68 ++++++++++++++++++++++++++++++++++++---
 deploy/kustomization.yaml | 18 +++++++++++
 2 files changed, 81 insertions(+), 5 deletions(-)
 create mode 100644 deploy/kustomization.yaml

diff --git a/deploy/README.md b/deploy/README.md
index 38afe645c..d434da2eb 100644
--- a/deploy/README.md
+++ b/deploy/README.md
@@ -1,11 +1,69 @@
-Example Deployment
-==================
+# Example Deployment
 
 1. Make sure you've built the included Dockerfile with `TAG=latest make container`. The image should be tagged as `registry.k8s.io/prometheus-adapter/staging-prometheus-adapter:latest`.
 
 2. `kubectl create namespace monitoring` to ensure that the namespace that we're installing
    the custom metrics adapter in exists.
 
-3. `kubectl create -f manifests/`, modifying the Deployment as necessary to
-   point to your Prometheus server, and the ConfigMap to contain your desired
-   metrics discovery configuration.
+3. This can be deployed via `kubectl create -f manifests/` or via `kustomize`
+   a. if using `kubectl create -f manifests/` modify the Deployment as necessary to point to your Prometheus server, and the ConfigMap to contain your desired metrics discovery configuration.
+   b. if using `kustomize` reference the kustomization file located: `http://github.com/kubernetes-sigs/prometheus-adapter/deploy?ref=release-X.XX`
+   example kustomization.yaml:
+
+   ```kustomization.yaml
+   ---
+   apiVersion: kustomize.config.k8s.io/v1beta1
+   kind: Kustomization
+
+   resources:
+     - github.com/kubernetes-sigs/prometheus-adapter/deploy?ref=release-X.XX
+
+   patches:
+   - path: deployment-patch.yaml
+     target:
+       kind: Deployment
+       version: v1
+       name: prometheus-adapter
+       namespace: monitoring
+   - path: configmap-patch.yaml
+     target:
+        kind: ConfigMap
+        version: v1
+        name: adapter-config
+        namespace: monitoring
+   ```
+
+   ```deployment-patch.yaml
+   kind: Deployment
+   apiVersion: apps/v1
+   metadata:
+     name: prometheus-adapter # deployment name to patch
+     namespace: monitoring
+   spec:
+     template:
+       spec:
+         containers:
+         - name: prometheus-adapter # name of container
+           args:
+           - --cert-dir=/var/run/serving-cert
+           - --config=/etc/adapter/config.yaml
+           - --metrics-relist-interval=1m
+           - --prometheus-url=http://prometheus.monitoring.svc.cluster.local:9090/ # prometheus URL
+           - --secure-port=6443
+           - --tls-cipher-suites=TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA
+   ```
+
+   ```configmap-patch.yaml
+   kind: ConfigMap
+   apiVersion: v1
+   metadata:
+     labels:
+       app.kubernetes.io/component: metrics-adapter
+       app.kubernetes.io/name: prometheus-adapter
+       app.kubernetes.io/version: 0.12.0
+     name: adapter-config
+     namespace: monitoring
+   data:
+     config.yaml: |-
+           # your rules would go here
+   ```
diff --git a/deploy/kustomization.yaml b/deploy/kustomization.yaml
new file mode 100644
index 000000000..0129216c1
--- /dev/null
+++ b/deploy/kustomization.yaml
@@ -0,0 +1,18 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: monitoring
+resources:
+  - ./manifests/api-service.yaml
+  - ./manifests/cluster-role-aggregated-metrics-reader.yaml
+  - ./manifests/cluster-role-binding-delegator.yaml
+  - ./manifests/cluster-role-binding-hpa-custom-metrics.yaml
+  - ./manifests/cluster-role-binding.yaml
+  - ./manifests/cluster-role-metrics-server-resources.yaml
+  - ./manifests/cluster-role.yaml
+  - ./manifests/config-map.yaml
+  - ./manifests/deployment.yaml
+  - ./manifests/network-policy.yaml
+  - ./manifests/pod-disruption-budget.yaml
+  - ./manifests/role-binding-auth-reader.yaml
+  - ./manifests/service-account.yaml
+  - ./manifests/service.yaml