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

apiVersion: v1
kind: Namespace
metadata:
  name: metallb-system
  labels:
    app: metallb
---
apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
  labels:
    app: metallb
  name: controller
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:
    rule: MustRunAsNonRoot
  seLinux:
    rule: RunAsAny
  supplementalGroups:
    ranges:
    - max: 65535
      min: 1
    rule: MustRunAs
  volumes:
  - configMap
  - secret
  - emptyDir
---
{% if metallb_speaker_enabled %}
apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
  labels:
    app: metallb
  name: speaker
spec:
  allowPrivilegeEscalation: false
  allowedCapabilities:
  - NET_RAW
  allowedHostPaths: []
  defaultAddCapabilities: []
  defaultAllowPrivilegeEscalation: false
  fsGroup:
    rule: RunAsAny
  hostIPC: false
  hostNetwork: true
  hostPID: false
  hostPorts:
  - max: {{ metallb_port }}
    min: {{ metallb_port }}
  - max: {{ metallb_memberlist_port }}
    min: {{ metallb_memberlist_port }}
  privileged: true
  readOnlyRootFilesystem: true
  requiredDropCapabilities:
  - ALL
  runAsUser:
    rule: RunAsAny
  seLinux:
    rule: RunAsAny
  supplementalGroups:
    rule: RunAsAny
  volumes:
  - configMap
  - secret
  - emptyDir
{% endif %}
---
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    app: metallb
  name: controller
  namespace: metallb-system
---
{% if metallb_speaker_enabled %}
apiVersion: v1
kind: ServiceAccount
metadata:
  labels:
    app: metallb
  name: speaker
  namespace: metallb-system
{% endif %}
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  labels:
    app: metallb
  name: metallb-system:controller
rules:
- apiGroups:
  - ''
  resources:
  - services
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - ''
  resources:
  - services/status
  verbs:
  - update
- apiGroups:
  - ''
  resources:
  - events
  verbs:
  - create
  - patch
- apiGroups:
  - policy
  resourceNames:
  - controller
  resources:
  - podsecuritypolicies
  verbs:
  - use
---
{% if metallb_speaker_enabled %}
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: ["discovery.k8s.io"]
  resources:
  - endpointslices
  verbs:
  - get
  - list
  - watch
- apiGroups:
  - ''
  resources:
  - events
  verbs:
  - create
  - patch
- apiGroups:
  - policy
  resourceNames:
  - speaker
  resources:
  - podsecuritypolicies
  verbs:
  - use
{% endif %}
---
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: Role
metadata:
  labels:
    app: metallb
  name: controller
  namespace: metallb-system
rules:
- apiGroups:
  - ''
  resources:
  - secrets
  verbs:
  - create
- apiGroups:
  - ''
  resources:
  - secrets
  resourceNames:
  - memberlist
  verbs:
  - list
- apiGroups:
  - apps
  resources:
  - deployments
  resourceNames:
  - controller
  verbs:
  - get
---
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
---
{% if metallb_speaker_enabled %}
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
{% endif %}
---
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: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  labels:
    app: metallb
  name: controller
  namespace: metallb-system
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: controller
subjects:
- kind: ServiceAccount
  name: controller
---
{% if metallb_speaker_enabled %}
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
        - --log-level={{ metallb_log_level }}
        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
        # needed when another software is also using memberlist / port 7946
        # when changing this default you also need to update the container ports definition
        # and the PodSecurityPolicy hostPorts definition
        #- name: METALLB_ML_BIND_PORT
        #  value: "{{ metallb_memberlist_port }}"
        - name: METALLB_ML_LABELS
          value: "app=metallb,component=speaker"
        - name: METALLB_ML_SECRET_KEY
          valueFrom:
            secretKeyRef:
              name: memberlist
              key: secretkey
        image: {{ metallb_speaker_image_repo }}:{{ metallb_version }}
        name: speaker
        ports:
        - containerPort: {{ metallb_port }}
          name: monitoring
        - containerPort: {{ metallb_memberlist_port }}
          name: memberlist-tcp
        - containerPort: {{ metallb_memberlist_port }}
          name: memberlist-udp
          protocol: UDP
        livenessProbe:
          httpGet:
            path: /metrics
            port: monitoring
          initialDelaySeconds: 10
          periodSeconds: 10
          timeoutSeconds: 1
          successThreshold: 1
          failureThreshold: 3
        readinessProbe:
          httpGet:
            path: /metrics
            port: monitoring
          initialDelaySeconds: 10
          periodSeconds: 10
          timeoutSeconds: 1
          successThreshold: 1
          failureThreshold: 3
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            add:
            - NET_RAW
            drop:
            - ALL
          readOnlyRootFilesystem: true
      hostNetwork: true
{% if metallb_speaker_nodeselector %}
      nodeSelector:
        {{ metallb_speaker_nodeselector | to_nice_yaml | indent(width=8) }}
{%- endif %}
      serviceAccountName: speaker
      terminationGracePeriodSeconds: 2
{% if metallb_speaker_tolerations %}
      tolerations:
        {{ metallb_speaker_tolerations | to_nice_yaml(indent=2) | indent(width=8) }}
{% endif %}
{% endif %}
---
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:
      priorityClassName: system-cluster-critical
{% if metallb_controller_tolerations %}
      tolerations:
        {{ metallb_controller_tolerations | to_nice_yaml(indent=2) | indent(width=8) }}
{% endif %}
      containers:
      - args:
        - --port={{ metallb_port }}
        - --config=config
        - --log-level={{ metallb_log_level }}
        env:
        - name: METALLB_ML_SECRET_NAME
          value: memberlist
        - name: METALLB_DEPLOYMENT
          value: controller
        image: {{ metallb_controller_image_repo }}:{{ metallb_version }}
        name: controller
        ports:
        - containerPort: {{ metallb_port }}
          name: monitoring
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          readOnlyRootFilesystem: true
        livenessProbe:
          httpGet:
            path: /metrics
            port: monitoring
          initialDelaySeconds: 10
          periodSeconds: 10
          timeoutSeconds: 1
          successThreshold: 1
          failureThreshold: 3
        readinessProbe:
          httpGet:
            path: /metrics
            port: monitoring
          initialDelaySeconds: 10
          periodSeconds: 10
          timeoutSeconds: 1
          successThreshold: 1
          failureThreshold: 3
{% if metallb_controller_nodeselector %}
      nodeSelector:
        {{ metallb_controller_nodeselector | to_nice_yaml | indent(width=8) }}
{%- endif %}
      securityContext:
        runAsNonRoot: true
        runAsUser: 65534
        fsGroup: 65534
      serviceAccountName: controller
      terminationGracePeriodSeconds: 0