# create namespace
apiVersion: v1
kind: Namespace
metadata:
  name: aws-otel-eks
  labels:
    name: aws-otel-eks

---
# create cwagent service account and role binding
apiVersion: v1
kind: ServiceAccount
metadata:
  name: aws-otel-sa
  namespace: aws-otel-eks

---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: aoc-agent-role
rules:
  - apiGroups: [""]
    resources: ["pods", "nodes", "endpoints"]
    verbs: ["list", "watch", "get"]
  - apiGroups: ["apps"]
    resources: ["replicasets"]
    verbs: ["list", "watch", "get"]
  - apiGroups: ["batch"]
    resources: ["jobs"]
    verbs: ["list", "watch"]
  - apiGroups: [""]
    resources: ["nodes/proxy"]
    verbs: ["get"]
  - apiGroups: [""]
    resources: ["nodes/stats", "configmaps", "events"]
    verbs: ["create", "get"]
  - apiGroups: [""]
    resources: ["configmaps"]
    verbs: ["update"]
  - apiGroups: [""]
    resources: ["configmaps"]
    resourceNames: ["otel-container-insight-clusterleader"]
    verbs: ["get","update", "create"]
  - apiGroups: ["coordination.k8s.io"]
    resources: ["leases"]
    verbs: ["create","get", "update"]
  - apiGroups: ["coordination.k8s.io"]
    resources: ["leases"]
    resourceNames: ["otel-container-insight-clusterleader"]
    verbs: ["get","update", "create"]

---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: aoc-agent-role-binding
subjects:
  - kind: ServiceAccount
    name: aws-otel-sa
    namespace: aws-otel-eks
roleRef:
  kind: ClusterRole
  name: aoc-agent-role
  apiGroup: rbac.authorization.k8s.io

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: otel-agent-conf
  namespace: aws-otel-eks
  labels:
    app: opentelemetry
    component: otel-agent-conf
data:
  otel-agent-config: |
    extensions:
      health_check:

    receivers:
      awscontainerinsightreceiver:

    processors:
      batch/metrics:
        timeout: 60s

    exporters:
      awsemf:
        namespace: ContainerInsights
        log_group_name: '/aws/containerinsights/{ClusterName}/performance'
        log_stream_name: '{NodeName}'
        resource_to_telemetry_conversion:
          enabled: true
        dimension_rollup_option: NoDimensionRollup
        parse_json_encoded_attr_values: [Sources, kubernetes]
        metric_declarations:
          # node metrics
          - dimensions: [[NodeName, InstanceId, ClusterName]]
            metric_name_selectors:
              - node_cpu_utilization
              - node_memory_utilization
              - node_network_total_bytes
              - node_cpu_reserved_capacity
              - node_memory_reserved_capacity
              - node_number_of_running_pods
              - node_number_of_running_containers
          - dimensions: [[ClusterName]]
            metric_name_selectors:
              - node_cpu_utilization
              - node_memory_utilization
              - node_network_total_bytes
              - node_cpu_reserved_capacity
              - node_memory_reserved_capacity
              - node_number_of_running_pods
              - node_number_of_running_containers
              - node_cpu_usage_total
              - node_cpu_limit
              - node_memory_working_set
              - node_memory_limit

          # pod metrics
          - dimensions: [[PodName, Namespace, ClusterName], [Service, Namespace, ClusterName], [Namespace, ClusterName], [ClusterName]]
            metric_name_selectors:
              - pod_cpu_utilization
              - pod_memory_utilization
              - pod_network_rx_bytes
              - pod_network_tx_bytes
              - pod_cpu_utilization_over_pod_limit
              - pod_memory_utilization_over_pod_limit
          - dimensions: [[PodName, Namespace, ClusterName], [ClusterName]]
            metric_name_selectors:
              - pod_cpu_reserved_capacity
              - pod_memory_reserved_capacity
          - dimensions: [[PodName, Namespace, ClusterName]]
            metric_name_selectors:
              - pod_number_of_container_restarts

          # cluster metrics
          - dimensions: [[ClusterName]]
            metric_name_selectors:
              - cluster_node_count
              - cluster_failed_node_count

          # service metrics
          - dimensions: [[Service, Namespace, ClusterName], [ClusterName]]
            metric_name_selectors:
              - service_number_of_running_pods

          # node fs metrics
          - dimensions: [[NodeName, InstanceId, ClusterName], [ClusterName]]
            metric_name_selectors:
              - node_filesystem_utilization

          # namespace metrics
          - dimensions: [[Namespace, ClusterName], [ClusterName]]
            metric_name_selectors:
              - namespace_number_of_running_pods

    service:
      pipelines:
        metrics:
          receivers: [awscontainerinsightreceiver]
          processors: [batch/metrics]
          exporters: [awsemf]

      extensions: [health_check]


---
# create Daemonset
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: aws-otel-eks-ci
  namespace: aws-otel-eks
spec:
  selector:
    matchLabels:
      name: aws-otel-eks-ci
  template:
    metadata:
      labels:
        name: aws-otel-eks-ci
    spec:
      containers:
        - name: aws-otel-collector
          image: public.ecr.aws/aws-observability/aws-otel-collector:latest
          securityContext:
            runAsUser: 0
            runAsGroup: 0
          env:
            - name: K8S_NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: HOST_IP
              valueFrom:
                fieldRef:
                  fieldPath: status.hostIP
            - name: HOST_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: K8S_NAMESPACE
              valueFrom:
                 fieldRef:
                   fieldPath: metadata.namespace
          imagePullPolicy: Always
          command:
            - "/awscollector"
            - "--config=/conf/otel-agent-config.yaml"
          volumeMounts:
            - name: rootfs
              mountPath: /rootfs
              readOnly: true
            - name: dockersock
              mountPath: /var/run/docker.sock
              readOnly: true
            - name: containerdsock
              mountPath: /run/containerd/containerd.sock
            - name: varlibdocker
              mountPath: /var/lib/docker
              readOnly: true
            - name: sys
              mountPath: /sys
              readOnly: true
            - name: devdisk
              mountPath: /dev/disk
              readOnly: true
            - name: otel-agent-config-vol
              mountPath: /conf
          resources:
            limits:
              cpu:  200m
              memory: 200Mi
            requests:
              cpu: 200m
              memory: 200Mi
      volumes:
        - configMap:
            name: otel-agent-conf
            items:
              - key: otel-agent-config
                path: otel-agent-config.yaml
          name: otel-agent-config-vol
        - name: rootfs
          hostPath:
            path: /
        - name: dockersock
          hostPath:
            path: /var/run/docker.sock
        - name: varlibdocker
          hostPath:
            path: /var/lib/docker
        - name: containerdsock
          hostPath:
            path: /run/containerd/containerd.sock
        - name: sys
          hostPath:
            path: /sys
        - name: devdisk
          hostPath:
            path: /dev/disk/
      serviceAccountName: aws-otel-sa