[7.x](backport #26566) Add agent fleet enrolment k8s manifest

deploy/kubernetes/Makefile

@@ -1,4 +1,4 @@
-ALL=filebeat metricbeat auditbeat heartbeat elastic-agent-standalone
+ALL=filebeat metricbeat auditbeat heartbeat elastic-agent-standalone elastic-agent-managed
 BEAT_VERSION=$(shell head -n 1 ../../libbeat/docs/version.asciidoc | cut -c 17- )
 
 .PHONY: all $(ALL)

deploy/kubernetes/elastic-agent-managed-kubernetes.yaml

@@ -0,0 +1,209 @@
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: elastic-agent
+  namespace: kube-system
+  labels:
+    app: elastic-agent
+spec:
+  selector:
+    matchLabels:
+      app: elastic-agent
+  template:
+    metadata:
+      labels:
+        app: elastic-agent
+    spec:
+      tolerations:
+        - key: node-role.kubernetes.io/master
+          effect: NoSchedule
+      serviceAccountName: elastic-agent
+      hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
+      containers:
+        - name: elastic-agent
+          image: docker.elastic.co/beats/elastic-agent:8.0.0
+          env:
+            - name: FLEET_ENROLL
+              value: "1"
+              # Set to true in case of insecure or unverified HTTP
+            - name: FLEET_INSECURE
+              value: false
+              # The ip:port pair of fleet server
+            - name: FLEET_URL
+              value: "https://fleet-server:8220"
+            - name: KIBANA_HOST
+              value: "http://kibana:5601"
+            - name: KIBANA_FLEET_USERNAME
+              value: "elastic"
+            - name: KIBANA_FLEET_PASSWORD
+              value: ""
+            - name: NODE_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+          securityContext:
+            runAsUser: 0
+          resources:
+            limits:
+              memory: 200Mi
+            requests:
+              cpu: 100m
+              memory: 100Mi
+          volumeMounts:
+            - name: proc
+              mountPath: /hostfs/proc
+              readOnly: true
+            - name: cgroup
+              mountPath: /hostfs/sys/fs/cgroup
+              readOnly: true
+            - name: varlibdockercontainers
+              mountPath: /var/lib/docker/containers
+              readOnly: true
+            - name: varlog
+              mountPath: /var/log
+              readOnly: true
+      volumes:
+        - name: proc
+          hostPath:
+            path: /proc
+        - name: cgroup
+          hostPath:
+            path: /sys/fs/cgroup
+        - name: varlibdockercontainers
+          hostPath:
+            path: /var/lib/docker/containers
+        - name: varlog
+          hostPath:
+            path: /var/log
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: elastic-agent
+subjects:
+  - kind: ServiceAccount
+    name: elastic-agent
+    namespace: kube-system
+roleRef:
+  kind: ClusterRole
+  name: elastic-agent
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  namespace: kube-system
+  name: elastic-agent
+subjects:
+  - kind: ServiceAccount
+    name: elastic-agent
+    namespace: kube-system
+roleRef:
+  kind: Role
+  name: elastic-agent
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: elastic-agent-kubeadm-config
+  namespace: kube-system
+subjects:
+  - kind: ServiceAccount
+    name: elastic-agent
+    namespace: kube-system
+roleRef:
+  kind: Role
+  name: elastic-agent-kubeadm-config
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: elastic-agent
+  labels:
+    k8s-app: elastic-agent
+rules:
+  - apiGroups: [""]
+    resources:
+      - nodes
+      - namespaces
+      - events
+      - pods
+      - services
+      - configmaps
+    verbs: ["get", "list", "watch"]
+  # Enable this rule only if planing to use kubernetes_secrets provider
+  #- apiGroups: [""]
+  #  resources:
+  #  - secrets
+  #  verbs: ["get"]
+  - apiGroups: ["extensions"]
+    resources:
+      - replicasets
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["apps"]
+    resources:
+      - statefulsets
+      - deployments
+      - replicasets
+    verbs: ["get", "list", "watch"]
+  - apiGroups:
+      - ""
+    resources:
+      - nodes/stats
+    verbs:
+      - get
+  - apiGroups: [ "batch" ]
+    resources:
+      - jobs
+    verbs: [ "get", "list", "watch" ]
+  # required for apiserver
+  - nonResourceURLs:
+      - "/metrics"
+    verbs:
+      - get
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: elastic-agent
+  # should be the namespace where elastic-agent is running
+  namespace: kube-system
+  labels:
+    k8s-app: elastic-agent
+rules:
+  - apiGroups:
+      - coordination.k8s.io
+    resources:
+      - leases
+    verbs: ["get", "create", "update"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: elastic-agent-kubeadm-config
+  namespace: kube-system
+  labels:
+    k8s-app: elastic-agent
+rules:
+  - apiGroups: [""]
+    resources:
+      - configmaps
+    resourceNames:
+      - kubeadm-config
+    verbs: ["get"]
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: elastic-agent
+  namespace: kube-system
+  labels:
+    k8s-app: elastic-agent
+---

deploy/kubernetes/elastic-agent-managed/elastic-agent-managed-daemonset.yaml

@@ -0,0 +1,82 @@
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: elastic-agent
+  namespace: kube-system
+  labels:
+    app: elastic-agent
+spec:
+  selector:
+    matchLabels:
+      app: elastic-agent
+  template:
+    metadata:
+      labels:
+        app: elastic-agent
+    spec:
+      tolerations:
+        - key: node-role.kubernetes.io/master
+          effect: NoSchedule
+      serviceAccountName: elastic-agent
+      hostNetwork: true
+      dnsPolicy: ClusterFirstWithHostNet
+      containers:
+        - name: elastic-agent
+          image: docker.elastic.co/beats/elastic-agent:8.0.0
+          env:
+            - name: FLEET_ENROLL
+              value: "1"
+              # Set to true in case of insecure or unverified HTTP
+            - name: FLEET_INSECURE
+              value: false
+              # The ip:port pair of fleet server
+            - name: FLEET_URL
+              value: "https://fleet-server:8220"
+            - name: KIBANA_HOST
+              value: "http://kibana:5601"
+            - name: KIBANA_FLEET_USERNAME
+              value: "elastic"
+            - name: KIBANA_FLEET_PASSWORD
+              value: ""
+            - name: NODE_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: spec.nodeName
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+          securityContext:
+            runAsUser: 0
+          resources:
+            limits:
+              memory: 200Mi
+            requests:
+              cpu: 100m
+              memory: 100Mi
+          volumeMounts:
+            - name: proc
+              mountPath: /hostfs/proc
+              readOnly: true
+            - name: cgroup
+              mountPath: /hostfs/sys/fs/cgroup
+              readOnly: true
+            - name: varlibdockercontainers
+              mountPath: /var/lib/docker/containers
+              readOnly: true
+            - name: varlog
+              mountPath: /var/log
+              readOnly: true
+      volumes:
+        - name: proc
+          hostPath:
+            path: /proc
+        - name: cgroup
+          hostPath:
+            path: /sys/fs/cgroup
+        - name: varlibdockercontainers
+          hostPath:
+            path: /var/lib/docker/containers
+        - name: varlog
+          hostPath:
+            path: /var/log

deploy/kubernetes/elastic-agent-managed/elastic-agent-managed-role-binding.yaml

@@ -0,0 +1,40 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: elastic-agent
+subjects:
+  - kind: ServiceAccount
+    name: elastic-agent
+    namespace: kube-system
+roleRef:
+  kind: ClusterRole
+  name: elastic-agent
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  namespace: kube-system
+  name: elastic-agent
+subjects:
+  - kind: ServiceAccount
+    name: elastic-agent
+    namespace: kube-system
+roleRef:
+  kind: Role
+  name: elastic-agent
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: elastic-agent-kubeadm-config
+  namespace: kube-system
+subjects:
+  - kind: ServiceAccount
+    name: elastic-agent
+    namespace: kube-system
+roleRef:
+  kind: Role
+  name: elastic-agent-kubeadm-config
+  apiGroup: rbac.authorization.k8s.io