apiVersion: v1
kind: ConfigMap
metadata:
  name: agent-node-datastreams
  namespace: kube-system
  labels:
    k8s-app: elastic-agent
data:
  agent.yml: |-
    id: 8d2c1d00-1984-11ee-b0e7-bfc367df2ac6
    outputs:
      default:
        type: elasticsearch
        hosts:
          - 'https://elasticsearch:9200'
        ssl.verification_mode: none
        allow_older_versions: true
        username: '${ES_USERNAME}'
        password: '${ES_PASSWORD}'
    providers.kubernetes:
      node: ${NODE_NAME}
      scope: node
      hints:
        enabled: true
        default_container_logs: false 

    # inputs:
    #   - name: hints-filestream-container-logs
    #     id: hints-filestream-container-logs-${kubernetes.hints.container_id}
    #     type: filestream
    #     use_output: default
    #     streams:
    #       - condition: ${kubernetes.hints.container_logs.enabled} == true
    #         data_stream:
    #           dataset: kubernetes.container_logs
    #           type: logs
    #         parsers:
    #           - container:
    #               format: auto
    #               stream: ${kubernetes.hints.container_logs.stream|'all'}
    #         paths:
    #           - /var/log/containers/*${kubernetes.hints.container_id}.log
    #         prospector:
    #           scanner:
    #             symlinks: true
    #     data_stream.namespace: default 

    agent:
      download:
        sourceURI: 'https://artifacts.elastic.co/downloads/'
      monitoring:
        namespace: default
        use_output: default
        enabled: true
        logs: true
        metrics: true
      #logging.level: debug

---
# For more information refer https://www.elastic.co/guide/en/fleet/current/running-on-kubernetes-standalone.html
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 are needed to run Elastic Agent on Kubernetes control-plane nodes.
      # Agents running on control-plane nodes collect metrics from the control plane components (scheduler, controller manager) of Kubernetes
      tolerations:
        - key: node-role.kubernetes.io/control-plane
          effect: NoSchedule
        - key: node-role.kubernetes.io/master
          effect: NoSchedule
      serviceAccountName: elastic-agent
      hostNetwork: true
      dnsPolicy: ClusterFirstWithHostNet
      # Uncomment if using hints feature
      # initContainers:
      #  - name: k8s-templates-downloader
      #    image: busybox:1.28
      #    command: ['sh']
      #    args:
      #      - -c
      #      - >-
      #        mkdir -p /etc/elastic-agent/inputs.d &&
      #        wget -O - https://github.com/elastic/elastic-agent/archive/main.tar.gz | tar xz -C /etc/elastic-agent/inputs.d --strip=5 "elastic-agent-main/deploy/kubernetes/elastic-agent-standalone/templ
      #    volumeMounts:
      #      - name: external-inputs
      #        mountPath: /etc/elastic-agent/inputs.d
      containers:
        - name: elastic-agent
          #image: docker.elastic.co/beats/elastic-agent:8.10.0-SNAPSHOT-debug
          image: custom-agent-image:latest
          imagePullPolicy: Never
          args: ["-c", "/etc/elastic-agent/agent.yml", "-e"]
          env:
            # The basic authentication username used to connect to Elasticsearch
            # This user needs the privileges required to publish events to Elasticsearch.
            - name: ES_USERNAME
              value: "elastic"
            # The basic authentication password used to connect to Elasticsearch
            - name: ES_PASSWORD
              value: "changeme"
            - name: NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: STATE_PATH
              value: "/etc/elastic-agent"
          securityContext:
            runAsUser: 0
            # The following capabilities are needed for 'Defend for containers' integration (cloud-defend)
            # If you are using this integration, please uncomment these lines before applying.
            #capabilities:
            #  add:
            #    - BPF # (since Linux 5.8) allows loading of BPF programs, create most map types, load BTF, iterate programs and maps.
            #    - PERFMON # (since Linux 5.8) allows attaching of BPF programs used for performance metrics and observability operations.
            #    - SYS_RESOURCE # Allow use of special resources or raising of resource limits. Used by 'Defend for Containers' to modify 'rlimit_memlock'
          resources:
            limits:
              memory: 700Mi
            requests:
              cpu: 100m
              memory: 400Mi
          volumeMounts:
            - name: datastreams
              mountPath: /etc/elastic-agent/agent.yml
              readOnly: true
              subPath: agent.yml
            #Uncomment if using hints feature
            - name: external-inputs
              mountPath: /etc/elastic-agent/inputs.d/container_logs.yml
            - 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
            - name: etc-full
              mountPath: /hostfs/etc
              readOnly: true
            - name: var-lib
              mountPath: /hostfs/var/lib
              readOnly: true
            - name: sys-kernel-debug
              mountPath: /sys/kernel/debug
      volumes:
        - name: datastreams
          configMap:
            defaultMode: 0640
            name: agent-node-datastreams
        # Uncomment if using hints feature
        - name: external-inputs
          hostPath:
            path: /var/log/test/container_logs.yml
        - 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
        # The following volumes are needed for Cloud Security Posture integration (cloudbeat)
        # If you are not using this integration, then these volumes and the corresponding
        # mounts can be removed.
        - name: etc-full
          hostPath:
            path: /etc
        - name: var-lib
          hostPath:
            path: /var/lib
        # Needed for 'Defend for containers' integration (cloud-defend)
        # If you are not using this integration, then these volumes and the corresponding
        # mounts can be removed.
        - name: sys-kernel-debug
          hostPath:
            path: /sys/kernel/debug
---
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
      # Needed for cloudbeat
      - serviceaccounts
      - persistentvolumes
      - persistentvolumeclaims
    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
      - daemonsets
    verbs: ["get", "list", "watch"]
  - apiGroups: ["batch"]
    resources:
      - jobs
      - cronjobs
    verbs: ["get", "list", "watch"]
  - apiGroups:
      - ""
    resources:
      - nodes/stats
    verbs:
      - get
  # Needed for apiserver
  - nonResourceURLs:
      - "/metrics"
    verbs:
      - get
  # Needed for cloudbeat
  - apiGroups: ["rbac.authorization.k8s.io"]
    resources:
      - clusterrolebindings
      - clusterroles
      - rolebindings
      - roles
    verbs: ["get", "list", "watch"]
  # Needed for cloudbeat
  - apiGroups: ["policy"]
    resources:
      - podsecuritypolicies
    verbs: ["get", "list", "watch"]
  - apiGroups: [ "storage.k8s.io" ]
    resources:
      - storageclasses
    verbs: [ "get", "list", "watch" ]
---
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
---