A Fleet Server is required before enrolling agents with Fleet.

[cesarqdt]

After applying the manifest to my cluster, changing the namespace to an specific one (not default) for elasticsearch, kibana, fleet and heartbeat, I go into the kibana dashboard and click under Management --> Fleet, I get the following message: A Fleet Server is required before enrolling agents with Fleet.. This is not the same behavour as yours in the video of this repository.

Are there any configurations required besides applying the manifests?

My kubernetes version is 1.21, ECK installed via helm and stack installed via kubectl apply -f <>.yaml -n non-default-namespace,

This is what it is shown in the Fleet management view.

[framsouza]

if you change the namespace, you need to make sure you also adjust the namespace name/connection between kibana and fleet server, see

eck-ready-for-production/kibana.yaml

Lines 17 to 18 in 1780545

	xpack.fleet.agents.elasticsearch.hosts: ["https://elasticsearch-es-http.default.svc:9200"]
	xpack.fleet.agents.fleet_server.hosts: ["https://fleet-server-agent-http.default.svc:8220"]

if you are not using the default namespace anymore, you have to adjust the connection between the components with your new namespace name

[cesarqdt]

I have done this change already, I also made sure the namespace is added in the fleet, kibana and elasticsearch, and still nothing is comming up. For reference, I'm using the manifests:
Kibana.yaml

apiVersion: kibana.k8s.elastic.co/v1
kind: Kibana
metadata:
  name: kibana
  namespace: develop
spec:
  version: 8.3.1
  count: 1
  elasticsearchRef:
    name: elasticsearch
  config:
    xpack.fleet.agents.elasticsearch.hosts: ["https://elasticsearch-es-http.develop.svc:9200"]
    xpack.fleet.agents.fleet_server.hosts: ["https://fleet-server-agent-http.develop.svc:8220"]
    xpack.fleet.packages:
    - name: system
      version: latest
    - name: elastic_agent
      version: latest
    - name: fleet_server
      version: latest
    - name: kubernetes
      version: latest
    - name: log
      version: latest
    xpack.fleet.agentPolicies:
    - name: Fleet Server on ECK policy
      id: eck-fleet-server
      namespace: develop
      monitoring_enabled:
      - logs
      - metrics
      unenroll_timeout: 900
      is_default_fleet_server: true
      package_policies:
      - name: fleet_server-1
        id: fleet_server-1
        package:
          name: fleet_server
    - name: Elastic Agent on ECK policy
      id: eck-agent
      namespace: develop
      monitoring_enabled:
      - logs
      - metrics
      unenroll_timeout: 900
      is_default: true
      package_policies:
      - name: kuberentes-1
        id: kuberentes-1
        package:
          name: kubernetes
      - name: system-1
        id: system-1
        package:
          name: system
      - package:
          name: log
        name: log-1
        inputs:
        - type: logfile
          enabled: true
          streams:
          - data_stream:
              dataset: log.log
            enabled: true
            vars:
            - name: paths
              value:
              - '/var/log/containers/*${kubernetes.container.id}.log'
            - name: custom
              value: |
                symlinks: true
                condition: ${kubernetes.namespace} == 'develop'

fleet.yaml

---
apiVersion: agent.k8s.elastic.co/v1alpha1
kind: Agent
metadata:
  name: fleet-server
  namespace: develop
spec:
  version: 8.3.1
  kibanaRef:
    name: kibana
  elasticsearchRefs:
  - name: elasticsearch
  mode: fleet
  fleetServerEnabled: true
  deployment:
    replicas: 1
    podTemplate:
      spec:
        serviceAccountName: fleet-server
        automountServiceAccountToken: true
        securityContext:
          runAsUser: 0
---
apiVersion: agent.k8s.elastic.co/v1alpha1
kind: Agent
metadata:
  name: elastic-agent
  namespace: develop
spec:
  version: 8.3.1
  kibanaRef:
    name: kibana
  fleetServerRef:
    name: fleet-server
  mode: fleet
  daemonSet:
    podTemplate:
      spec:
        serviceAccountName: elastic-agent
        automountServiceAccountToken: true
        securityContext:
          runAsUser: 0
        containers:
        - name: agent
          volumeMounts:
          - mountPath: /var/lib/docker/containers
            name: varlibdockercontainers
          - mountPath: /var/log/containers
            name: varlogcontainers
          - mountPath: /var/log/pods
            name: varlogpods
        volumes:
        - name: varlibdockercontainers
          hostPath:
            path: /var/lib/docker/containers
        - name: varlogcontainers
          hostPath:
            path: /var/log/containers
        - name: varlogpods
          hostPath:
            path: /var/log/pods
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: fleet-server
rules:
- apiGroups: [""]
  resources:
  - pods
  - namespaces
  - nodes
  verbs:
  - get
  - watch
  - list
- apiGroups: ["coordination.k8s.io"]
  resources:
  - leases
  verbs:
  - get
  - create
  - update
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: fleet-server
  namespace: develop
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: fleet-server
subjects:
- kind: ServiceAccount
  name: fleet-server
  namespace: develop
roleRef:
  kind: ClusterRole
  name: fleet-server
  apiGroup: rbac.authorization.k8s.io
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: elastic-agent
rules:
- apiGroups: [""]
  resources:
  - pods
  - nodes
  - namespaces
  - events
  - services
  - configmaps
  verbs:
  - get
  - watch
  - list
- apiGroups: ["coordination.k8s.io"]
  resources:
  - leases
  verbs:
  - get
  - create
  - update
- nonResourceURLs:
  - "/metrics"
  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"
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: elastic-agent
  namespace: develop
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: elastic-agent
subjects:
- kind: ServiceAccount
  name: elastic-agent
  namespace: develop
roleRef:
  kind: ClusterRole
  name: elastic-agent
  apiGroup: rbac.authorization.k8s.io