Refactor Kubernetes configuration to use Traefik for dashboard routing

kubernetes/manifests/metrics-server/aggregated-metrics-reader.yaml

@@ -0,0 +1,12 @@
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: system:aggregated-metrics-reader
+  labels:
+    rbac.authorization.k8s.io/aggregate-to-view: "true"
+    rbac.authorization.k8s.io/aggregate-to-edit: "true"
+    rbac.authorization.k8s.io/aggregate-to-admin: "true"
+rules:
+- apiGroups: ["metrics.k8s.io"]
+  resources: ["pods", "nodes"]
+  verbs: ["get", "list", "watch"]

kubernetes/manifests/metrics-server/auth-delegator.yaml

@@ -0,0 +1,13 @@
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: metrics-server:system:auth-delegator
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:auth-delegator
+subjects:
+- kind: ServiceAccount
+  name: metrics-server
+  namespace: kube-system

kubernetes/manifests/metrics-server/auth-reader.yaml

@@ -0,0 +1,14 @@
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: metrics-server-auth-reader
+  namespace: kube-system
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: extension-apiserver-authentication-reader
+subjects:
+- kind: ServiceAccount
+  name: metrics-server
+  namespace: kube-system

kubernetes/manifests/metrics-server/metrics-apiservice.yaml

@@ -0,0 +1,14 @@
+---
+apiVersion: apiregistration.k8s.io/v1
+kind: APIService
+metadata:
+  name: v1beta1.metrics.k8s.io
+spec:
+  service:
+    name: metrics-server
+    namespace: kube-system
+  group: metrics.k8s.io
+  version: v1beta1
+  insecureSkipTLSVerify: true
+  groupPriorityMinimum: 100
+  versionPriority: 100

kubernetes/manifests/metrics-server/metrics-server-deployment.yaml

@@ -0,0 +1,90 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: metrics-server
+  namespace: kube-system
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: metrics-server
+  namespace: kube-system
+  labels:
+    k8s-app: metrics-server
+spec:
+  revisionHistoryLimit: 0
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: 1
+  selector:
+    matchLabels:
+      k8s-app: metrics-server
+  template:
+    metadata:
+      name: metrics-server
+      labels:
+        k8s-app: metrics-server
+    spec:
+      priorityClassName: "system-node-critical"
+      serviceAccountName: metrics-server
+      tolerations:
+        - key: "CriticalAddonsOnly"
+          operator: "Exists"
+        - key: "node-role.kubernetes.io/control-plane"
+          operator: "Exists"
+          effect: "NoSchedule"
+        - key: "node-role.kubernetes.io/master"
+          operator: "Exists"
+          effect: "NoSchedule"
+      volumes:
+      # mount in tmp so we can safely use from-scratch images and/or read-only containers
+      - name: tmp-dir
+        emptyDir: {}
+      containers:
+      - name: metrics-server
+        image: "rancher/mirrored-metrics-server:v0.7.0"
+        args:
+        - --cert-dir=/tmp
+        - --secure-port=10250
+        - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
+        - --kubelet-use-node-status-port
+        - --metric-resolution=15s
+        - --tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305
+        resources:
+          requests:
+            cpu: 100m
+            memory: 70Mi
+        ports:
+        - name: https
+          containerPort: 10250
+          protocol: TCP
+        readinessProbe:
+          httpGet:
+            path: /readyz
+            port: https
+            scheme: HTTPS
+          initialDelaySeconds: 0
+          periodSeconds: 2
+          timeoutSeconds: 1
+          successThreshold: 1
+          failureThreshold: 3
+        livenessProbe:
+          httpGet:
+            path: /livez
+            port: https
+            scheme: HTTPS
+          initialDelaySeconds: 60
+          periodSeconds: 10
+          timeoutSeconds: 1
+          successThreshold: 1
+          failureThreshold: 3
+        securityContext:
+          readOnlyRootFilesystem: true
+          runAsNonRoot: true
+          runAsUser: 1000
+          allowPrivilegeEscalation: false
+        volumeMounts:
+        - name: tmp-dir
+          mountPath: /tmp

kubernetes/manifests/metrics-server/metrics-server-service.yaml

@@ -0,0 +1,18 @@
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: metrics-server
+  namespace: kube-system
+  labels:
+    kubernetes.io/name: "Metrics-server"
+    kubernetes.io/cluster-service: "true"
+spec:
+  selector:
+    k8s-app: metrics-server
+  ports:
+  - port: 443
+    name: https
+    protocol: TCP
+    targetPort: https
+  ipFamilyPolicy: PreferDualStack

kubernetes/manifests/metrics-server/resource-reader.yaml

@@ -0,0 +1,34 @@
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: system:metrics-server
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - nodes/metrics
+  verbs:
+  - get
+- apiGroups:
+  - ""
+  resources:
+  - pods
+  - nodes
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: system:metrics-server
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:metrics-server
+subjects:
+- kind: ServiceAccount
+  name: metrics-server
+  namespace: kube-system