Change MetalLB to one of addons (#6238)

This changes MetalLB contrib to one of addons for deploying MetalLB with
Kubernetes cluster deployment. By the default, Kubespray doesn't deploy
MetalLB addon.

roles/kubernetes-apps/metallb/templates/metallb.yml.j2

@@ -0,0 +1,398 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: metallb-system
+  labels:
+    app: metallb
+---
+apiVersion: policy/v1beta1
+kind: PodSecurityPolicy
+metadata:
+  labels:
+    app: metallb
+  name: controller
+  namespace: metallb-system
+spec:
+  allowPrivilegeEscalation: false
+  allowedCapabilities: []
+  allowedHostPaths: []
+  defaultAddCapabilities: []
+  defaultAllowPrivilegeEscalation: false
+  fsGroup:
+    ranges:
+    - max: 65535
+      min: 1
+    rule: MustRunAs
+  hostIPC: false
+  hostNetwork: false
+  hostPID: false
+  privileged: false
+  readOnlyRootFilesystem: true
+  requiredDropCapabilities:
+  - ALL
+  runAsUser:
+    ranges:
+    - max: 65535
+      min: 1
+    rule: MustRunAs
+  seLinux:
+    rule: RunAsAny
+  supplementalGroups:
+    ranges:
+    - max: 65535
+      min: 1
+    rule: MustRunAs
+  volumes:
+  - configMap
+  - secret
+  - emptyDir
+---
+apiVersion: policy/v1beta1
+kind: PodSecurityPolicy
+metadata:
+  labels:
+    app: metallb
+  name: speaker
+  namespace: metallb-system
+spec:
+  allowPrivilegeEscalation: false
+  allowedCapabilities:
+  - NET_ADMIN
+  - NET_RAW
+  - SYS_ADMIN
+  allowedHostPaths: []
+  defaultAddCapabilities: []
+  defaultAllowPrivilegeEscalation: false
+  fsGroup:
+    rule: RunAsAny
+  hostIPC: false
+  hostNetwork: true
+  hostPID: false
+  hostPorts:
+  - max: {{ metallb_port }}
+    min: {{ metallb_port }}
+  privileged: true
+  readOnlyRootFilesystem: true
+  requiredDropCapabilities:
+  - ALL
+  runAsUser:
+    rule: RunAsAny
+  seLinux:
+    rule: RunAsAny
+  supplementalGroups:
+    rule: RunAsAny
+  volumes:
+  - configMap
+  - secret
+  - emptyDir
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  labels:
+    app: metallb
+  name: controller
+  namespace: metallb-system
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  labels:
+    app: metallb
+  name: speaker
+  namespace: metallb-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  labels:
+    app: metallb
+  name: metallb-system:controller
+rules:
+- apiGroups:
+  - ''
+  resources:
+  - services
+  verbs:
+  - get
+  - list
+  - watch
+  - update
+- apiGroups:
+  - ''
+  resources:
+  - services/status
+  verbs:
+  - update
+- apiGroups:
+  - ''
+  resources:
+  - events
+  verbs:
+  - create
+  - patch
+- apiGroups:
+  - policy
+  resourceNames:
+  - controller
+  resources:
+  - podsecuritypolicies
+  verbs:
+  - use
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  labels:
+    app: metallb
+  name: metallb-system:speaker
+rules:
+- apiGroups:
+  - ''
+  resources:
+  - services
+  - endpoints
+  - nodes
+  verbs:
+  - get
+  - list
+  - watch
+- apiGroups:
+  - ''
+  resources:
+  - events
+  verbs:
+  - create
+  - patch
+- apiGroups:
+  - policy
+  resourceNames:
+  - speaker
+  resources:
+  - podsecuritypolicies
+  verbs:
+  - use
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  labels:
+    app: metallb
+  name: config-watcher
+  namespace: metallb-system
+rules:
+- apiGroups:
+  - ''
+  resources:
+  - configmaps
+  verbs:
+  - get
+  - list
+  - watch
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  labels:
+    app: metallb
+  name: pod-lister
+  namespace: metallb-system
+rules:
+- apiGroups:
+  - ''
+  resources:
+  - pods
+  verbs:
+  - list
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  labels:
+    app: metallb
+  name: metallb-system:controller
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: metallb-system:controller
+subjects:
+- kind: ServiceAccount
+  name: controller
+  namespace: metallb-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  labels:
+    app: metallb
+  name: metallb-system:speaker
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: metallb-system:speaker
+subjects:
+- kind: ServiceAccount
+  name: speaker
+  namespace: metallb-system
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  labels:
+    app: metallb
+  name: config-watcher
+  namespace: metallb-system
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: config-watcher
+subjects:
+- kind: ServiceAccount
+  name: controller
+- kind: ServiceAccount
+  name: speaker
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  labels:
+    app: metallb
+  name: pod-lister
+  namespace: metallb-system
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: pod-lister
+subjects:
+- kind: ServiceAccount
+  name: speaker
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  labels:
+    app: metallb
+    component: speaker
+  name: speaker
+  namespace: metallb-system
+spec:
+  selector:
+    matchLabels:
+      app: metallb
+      component: speaker
+  template:
+    metadata:
+      annotations:
+        prometheus.io/port: '{{ metallb_port }}'
+        prometheus.io/scrape: 'true'
+      labels:
+        app: metallb
+        component: speaker
+    spec:
+      containers:
+      - args:
+        - --port={{ metallb_port }}
+        - --config=config
+        env:
+        - name: METALLB_NODE_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: spec.nodeName
+        - name: METALLB_HOST
+          valueFrom:
+            fieldRef:
+              fieldPath: status.hostIP
+        - name: METALLB_ML_BIND_ADDR
+          valueFrom:
+            fieldRef:
+              fieldPath: status.podIP
+        - name: METALLB_ML_LABELS
+          value: "app=metallb,component=speaker"
+        - name: METALLB_ML_NAMESPACE
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+        - name: METALLB_ML_SECRET_KEY
+          valueFrom:
+            secretKeyRef:
+              name: memberlist
+              key: secretkey
+        image: metallb/speaker:{{ metallb_version }}
+        imagePullPolicy: Always
+        name: speaker
+        ports:
+        - containerPort: {{ metallb_port }}
+          name: monitoring
+        resources:
+          limits:
+            cpu: {{ metallb_limits_cpu }}
+            memory: {{ metallb_limits_mem }}
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            add:
+            - NET_ADMIN
+            - NET_RAW
+            - SYS_ADMIN
+            drop:
+            - ALL
+          readOnlyRootFilesystem: true
+      hostNetwork: true
+      nodeSelector:
+        beta.kubernetes.io/os: linux
+      serviceAccountName: speaker
+      terminationGracePeriodSeconds: 2
+      tolerations:
+      - effect: NoSchedule
+        key: node-role.kubernetes.io/master
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: metallb
+    component: controller
+  name: controller
+  namespace: metallb-system
+spec:
+  revisionHistoryLimit: 3
+  selector:
+    matchLabels:
+      app: metallb
+      component: controller
+  template:
+    metadata:
+      annotations:
+        prometheus.io/port: '{{ metallb_port }}'
+        prometheus.io/scrape: 'true'
+      labels:
+        app: metallb
+        component: controller
+    spec:
+      containers:
+      - args:
+        - --port={{ metallb_port }}
+        - --config=config
+        image: metallb/controller:{{ metallb_version }}
+        imagePullPolicy: Always
+        name: controller
+        ports:
+        - containerPort: {{ metallb_port }}
+          name: monitoring
+        resources:
+          limits:
+            cpu: {{ metallb_limits_cpu }}
+            memory: {{ metallb_limits_mem }}
+        securityContext:
+          allowPrivilegeEscalation: false
+          capabilities:
+            drop:
+            - all
+          readOnlyRootFilesystem: true
+      nodeSelector:
+        beta.kubernetes.io/os: linux
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 65534
+      serviceAccountName: controller
+      terminationGracePeriodSeconds: 0