Ca certification error

[Siva_Priya]

I have installed Elasticsearch 7.14.1 .The Elasticsearch is working fine. Then i have deployed Logstash.The issue is logstash cannot communicate with Elasticsearch
My elasticsearch.yaml file is

apiVersion: elasticsearch.k8s.elastic.co/v1
kind: Elasticsearch

metadata:

name:elasticsearch

spec:

version: 7.14.1 #Make sure you use the version of your choice

http:

  service:

    spec:

      type: LoadBalancer #Adds a External IP

nodeSets:

- name: default

  count: 1

  config:

    node.store.allow_mmap: false

My logstash yaml file is
apiVersion: v1
kind: ConfigMap
metadata:
name: logstash-config
labels:
app.kubernetes.io/name: eck-logstash
app.kubernetes.io/component: logstash
data:
logstash.yml: |
http.host: "0.0.0.0"
path.config: /usr/share/logstash/pipeline
---
apiVersion: v1
kind: ConfigMap
metadata:
name: logstash-pipeline
labels:
app.kubernetes.io/name: eck-logstash
app.kubernetes.io/component: logstash
data:
logstash.conf: |
input {
beats {
port => 5044
}
}

    output {
      elasticsearch {
        hosts => [ "https://elastisearch:9200" ]
        user => "elastic"
        password => "XXXXXX"
        cacert => '/etc/logstash/certificates/ca.crt'
      }
    }
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: logstash
  labels:
    app.kubernetes.io/name: eck-logstash
    app.kubernetes.io/component: logstash
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: eck-logstash
      app.kubernetes.io/component: logstash
  template:
    metadata:
      labels:
        app.kubernetes.io/name: eck-logstash
        app.kubernetes.io/component: logstash
    spec:
      containers:
        - name: logstash
          image: docker.elastic.co/logstash/logstash:7.14.1
          ports:
            - name: "tcp-beats"
              containerPort: 5044
          env:
            - name: ES_HOSTS
              value: "https://elastisearch:9200"
            - name: ES_USER
              value: "elastic"
            - name: ES_PASSWORD
              valueFrom:
                secretKeyRef:
                  name: elasticsearch
                  key: elastic
          volumeMounts:
            - name: config-volume
              mountPath: /usr/share/logstash/config
            - name: pipeline-volume
              mountPath: /usr/share/logstash/pipeline
            - name: ca-certs
              mountPath: /etc/logstash/certificates
              readOnly: true
      volumes:
        - name: config-volume
          configMap:
            name: logstash-config
        - name: pipeline-volume
          configMap:
            name: logstash-pipeline
        - name: ca-certs
          secret:
            secretName: veehive-elasticsearch-es-http-certs-public
---
apiVersion: v1
kind: Service
metadata:
  name: logstash
  labels:
    app.kubernetes.io/name: eck-logstash
    app.kubernetes.io/component: logstash
spec:
  ports:
    - name: "tcp-beats"
      port: 5044
      targetPort: 5044
  selector:
    app.kubernetes.io/name: eck-logstash
    app.kubernetes.io/component: logstash

I am getting the issue as "Warning FailedMount pod/logstash-69ccf8868f-hjpnx Unable to attach or mount volumes: unmounted volumes=[ca-certs], unattached volumes=[config-volume pipeline-volume ca-certs kube-api-access-9qcws]: t""

Any inputs on how to resolve this ca certification issue and where to find the path of it in kubernetes cluster