How to create grafana configmap for datasources?

For you to load the data by grafana server component, you would need to set this in your metadata field grafana_datasource: "1".

For a configmap:

apiVersion: v1kind: ConfigMapmetadata:  name: example-grafana-datasource  labels:     grafana_datasource: "1"     namespace: monitoringdata:  datasource.yaml: |-    apiVersion: 1    datasources:    - access: proxy      basicAuth: false      editable: false      isDefault: false      jsonData:        authType: credentials        defaultRegion: us-west-2      name: CloudWatch      type: cloudwatch

For a secret with the same label

apiVersion: v1kind: Secretmetadata:  name: influx-grafana-datasource  labels:     grafana_datasource: "1"     namespace: monitoringtype: OpaquestringData:  influxdatasource.yaml: |-    # config file version    apiVersion: 1    datasources:      - name: influxdb        type: influxdb        access: proxy        database: metrics_db        user: metrics_read_user        url: http://influx.example.com:8086/        jsonData:          timeInterval: "15s"        secureJsonData:          password: yourinfluxpassword

I have a ConfigMap for grafana withe prometheus datasource that scrapes Flink Task Managers. The file (https://github.com/felipegutierrez/explore-flink/blob/master/k8s/grafana-configuration-configmap.yaml) is too big to paste here but the main sections are below.

apiVersion: v1kind: ConfigMapmetadata:  name: grafana-config  namespace: kafka  labels:    app: flinkdata:  grafana.ini: |+ ...  dashboards.yml: |+    apiVersion: 1 database    deleteDatasources:      - name: Prometheus        orgId: 1    datasources:      - name: Prometheus        type: prometheus        access: proxy        orgId: 1        url: http://prometheus-service:9090        password:        user:        database:        basicAuth: false        basicAuthUser:        basicAuthPassword:        withCredentials:        isDefault: true        jsonData:          graphiteVersion: "1.1"          tlsAuth: false          tlsAuthWithCACert: false        secureJsonData:          tlsCACert: "..."          tlsClientCert: "..."          tlsClientKey: "..."        version: 1        editable: true  dashboard.json: |+    {...}

After having the ConfigMap set you call it inside the grafana pod like this:

apiVersion: apps/v1kind: Deploymentmetadata:  name: grafana-deployment  namespace: kafkaspec:  replicas: 1  selector:    matchLabels:      app: flink      component: grafana  template:    metadata:      labels:        app: flink        component: grafana    spec:      volumes:      - name: grafana-config-volume        configMap:          name: grafana-config          items:          - key: grafana.ini            path: grafana.ini          - key: datasource.yml            path: provisioning/datasources/datasource.yml          - key: dashboards.yml            path: provisioning/dashboards/dashboards.yml          - key: dashboard.json            path: dashboard.json      containers:      - name: grafana        image: grafana/grafana        imagePullPolicy: IfNotPresent # Always        ports:        - containerPort: 3000          name: http        volumeMounts:          - name: grafana-config-volume            mountPath: /etc/grafana/

The full example working is here: https://github.com/felipegutierrez/explore-flink/blob/master/k8s/grafana-deployment.yaml