Deploy an Elasticsearch instance with a route

Use the following code to create an Elasticsearch cluster elasticsearch-sample and a "passthrough" route to access it:

cat <<EOF | oc apply -n elastic -f -
# This sample sets up an Elasticsearch cluster with an OpenShift route
apiVersion: elasticsearch.k8s.elastic.co/v1
kind: Elasticsearch
metadata:
  name: elasticsearch-sample
spec:
  version: 8.16.0
  nodeSets:
  - name: default
    count: 1
    config:
      node.master: true
      node.data: true
      node.ingest: true
      node.store.allow_mmap: false
---
apiVersion: route.openshift.io/v1
kind: Route
metadata:
  name: elasticsearch-sample
spec:
  #host: elasticsearch.example.com # override if you don't want to use the host that is automatically generated by OpenShift (<route-name>[-<namespace>].<suffix>)
  tls:
    termination: passthrough # Elasticsearch is the TLS endpoint
    insecureEdgeTerminationPolicy: Redirect
  to:
    kind: Service
    name: elasticsearch-sample-es-http
EOF

Elasticsearch plugins

edit

Note that Elasticsearch plugins cannot be installed at runtime in most OpenShift environments. This is because the plugin installer must run as root, but Elasticsearch is restricted from running as root. To add plugins to Elasticsearch, you can use custom images as described in Create custom images.

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