feat: first commit

config/default/kustomization.yaml

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+# Adds namespace to all resources.
+namespace: operator-demo-system
+
+# Value of this field is prepended to the
+# names of all resources, e.g. a deployment named
+# "wordpress" becomes "alices-wordpress".
+# Note that it should also match with the prefix (text before '-') of the namespace
+# field above.
+namePrefix: operator-demo-
+
+# Labels to add to all resources and selectors.
+#commonLabels:
+#  someName: someValue
+
+bases:
+- ../crd
+- ../rbac
+- ../manager
+# [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix including the one in
+# crd/kustomization.yaml
+#- ../webhook
+# [CERTMANAGER] To enable cert-manager, uncomment all sections with 'CERTMANAGER'. 'WEBHOOK' components are required.
+#- ../certmanager
+# [PROMETHEUS] To enable prometheus monitor, uncomment all sections with 'PROMETHEUS'.
+#- ../prometheus
+
+patchesStrategicMerge:
+# Protect the /metrics endpoint by putting it behind auth.
+# If you want your controller-manager to expose the /metrics
+# endpoint w/o any authn/z, please comment the following line.
+- manager_auth_proxy_patch.yaml
+
+
+
+# [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix including the one in
+# crd/kustomization.yaml
+#- manager_webhook_patch.yaml
+
+# [CERTMANAGER] To enable cert-manager, uncomment all sections with 'CERTMANAGER'.
+# Uncomment 'CERTMANAGER' sections in crd/kustomization.yaml to enable the CA injection in the admission webhooks.
+# 'CERTMANAGER' needs to be enabled to use ca injection
+#- webhookcainjection_patch.yaml
+
+# the following config is for teaching kustomize how to do var substitution
+vars:
+# [CERTMANAGER] To enable cert-manager, uncomment all sections with 'CERTMANAGER' prefix.
+#- name: CERTIFICATE_NAMESPACE # namespace of the certificate CR
+#  objref:
+#    kind: Certificate
+#    group: cert-manager.io
+#    version: v1
+#    name: serving-cert # this name should match the one in certificate.yaml
+#  fieldref:
+#    fieldpath: metadata.namespace
+#- name: CERTIFICATE_NAME
+#  objref:
+#    kind: Certificate
+#    group: cert-manager.io
+#    version: v1
+#    name: serving-cert # this name should match the one in certificate.yaml
+#- name: SERVICE_NAMESPACE # namespace of the service
+#  objref:
+#    kind: Service
+#    version: v1
+#    name: webhook-service
+#  fieldref:
+#    fieldpath: metadata.namespace
+#- name: SERVICE_NAME
+#  objref:
+#    kind: Service
+#    version: v1
+#    name: webhook-service

config/default/manager_auth_proxy_patch.yaml

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+# This patch inject a sidecar container which is a HTTP proxy for the
+# controller manager, it performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+              - matchExpressions:
+                - key: kubernetes.io/arch
+                  operator: In
+                  values:
+                    - amd64
+                    - arm64
+                    - ppc64le
+                    - s390x
+                - key: kubernetes.io/os
+                  operator: In
+                  values:
+                    - linux
+      containers:
+      - name: kube-rbac-proxy
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+              - "ALL"
+        image: gcr.io/kubebuilder/kube-rbac-proxy:v0.13.1
+        args:
+        - "--secure-listen-address=0.0.0.0:8443"
+        - "--upstream=http://127.0.0.1:8080/"
+        - "--logtostderr=true"
+        - "--v=0"
+        ports:
+        - containerPort: 8443
+          protocol: TCP
+          name: https
+        resources:
+          limits:
+            cpu: 500m
+            memory: 128Mi
+          requests:
+            cpu: 5m
+            memory: 64Mi
+      - name: manager
+        args:
+        - "--health-probe-bind-address=:8081"
+        - "--metrics-bind-address=127.0.0.1:8080"
+        - "--leader-elect"

config/default/manager_config_patch.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: controller-manager
+  namespace: system
+spec:
+  template:
+    spec:
+      containers:
+      - name: manager